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WO1998030621A1 - Scented plastics - Google Patents

Scented plastics Download PDF

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Publication number
WO1998030621A1
WO1998030621A1 PCT/IB1998/000022 IB9800022W WO9830621A1 WO 1998030621 A1 WO1998030621 A1 WO 1998030621A1 IB 9800022 W IB9800022 W IB 9800022W WO 9830621 A1 WO9830621 A1 WO 9830621A1
Authority
WO
WIPO (PCT)
Prior art keywords
plastics
scented
carrier substance
scenting agent
scenting
Prior art date
Application number
PCT/IB1998/000022
Other languages
French (fr)
Inventor
Antonio Campagnoli
Original Assignee
Antonio Campagnoli
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Antonio Campagnoli filed Critical Antonio Campagnoli
Publication of WO1998030621A1 publication Critical patent/WO1998030621A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2431/00—Characterised by the use of copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, or carbonic acid, or of a haloformic acid

Definitions

  • This invention relates to plastics incorporating a scent within the physical structure of a plastic and in particular plastics that may be extruded into a desired configuration .
  • scenting agent may be comprised of one or more perfumes, perfume concentrates, or any other known substances used for producing a desired smell or odour.
  • the current method of manufacturing such articles is simply to manufacture an article out of an appropriate plastics and then coat the substance of that article with an appropriate scenting agent, that scenting agent either being applied to the surface of the article on its own, or being incorporated into an appropriate carrier substance that will help the scenting agent adhere to the surface of the plastics article.
  • This known method of scenting plastics articles is unsatisfactory in that the scenting agent can be rubbed or washed off the surface of the plastics article and thus the scenting of the plastics article lost. This is a particular problem if the article that is desired to be scented is one which may be expected to come into frequent contact with liquids .
  • Such articles include plastics sponges for use in care of the body, or plastics sponges or abraders for use in washing items such as crockery, or plastics items that are frequently washed such as storage containers.
  • a method of producing a scented plastics composition which comprises incorporating a scenting agent into a vinyl acetate-containing carrier substance, and then incorporating the scented carrier substance into a plastics material to form a plastics material/scented carrier substance mixture.
  • This mixture may be subsequently formed e.g. by conventional plastics forming processes into an item of scented plastics.
  • incorpora should be understood to include homogenous mixing, adsorption onto the surface of an adsorptive material, absorption into the physical structure of an absorbent material, or any other physical or chemical bonding between the substance that is being incorporated, and the substance into which it is incorporated.
  • the method of the present invention has the particular advantage that by using an intermediate carrier substance it is possible to incorporate a scenting agent into the physical structure of a plastics material without substantial detriment to the properties of the plastics material. This has not previously proved possible.
  • the carrier substance is an ethylene vinyl acetate polymer (EVA) and the plastics material is polyethylene.
  • EVA ethylene vinyl acetate polymer
  • An alternative carrier substance may be a polymeric material based on a corn or maize derived starch and including a proportion of vinyl acetate.
  • scents are those that can withstand the temperatures involved in incorporation of the scented carrier substance into the plastics, and the formation or extrusion of the plastics into its desired shape, i.e. one in which the molecules that form the scent do not undergo chemical or physical degradation.
  • the carrier substance and plastics are EVA and polyethylene respectively
  • the typical maximum temperature involved with the incorporation of the scented carrier mixture into the polyethylene and formation of the resultant mixture into items of commerce is 130°C.
  • fragrances for use in the present invention are non-water-soluble and do not contain glycol or any glycol derivative. Within this range, however, a wide variety of perfumes is commercially available.
  • a further advantage of the present invention is that the scenting agent slowly diffuses out of the scented plastics. Thus the plastics give off a scented fragrance for extended periods of time. The period of time that the manufactured article remains scented is dependent upon the amount of scent initially incorporated into the carrier material, and the surface area of the article.
  • the plastics of the present invention have the further advantage that because the scenting agent is incorporated into the structure of the plastics, the only scenting agent that is abraded or washed off the surface of the plastics are the molecules of scenting agent that have diffused to the surface of the plastics. Thus repeated abrasion or washing does not render the plastics odourless until all of the scenting agent has diffused out of the plastics. This is likely to take many months.
  • a particularly preferred use of the scented plastics of the present invention is the creation of a synthetic sponge made of polyethylene formed into a rhomboidal structure mesh.
  • the mesh is formed into tubes, and a number of lengths of tube are placed parallel one to the other, the parallel tubular lengths of mesh are then placed under tension, the lengths of mesh secured one to the other by way of a tie or staple passing round the lengths of mesh at approximately their midpoints, and the tension released.
  • a sponge manufactured of the plastics of the present invention to the method set out above feels softer than a sponge made of polyethylene without any incorporated scenting agents, for example a sponge of the type disclosed in US-A-5144744.
  • a further advantage of the plastics of the present invention is that because the perfuming agent is incorporated within the structure of the plastics there is only ever a small quantity of scenting agent on the surface of the plastics and, as such, the scenting agent is not of sufficient concentration to cause irritation to, or inflame allergies in, the skin of a user. This is in direct contrast to the previously known methods of producing scented plastics articles in which the concentration of the scenting agent on the surface of the sponge can be sufficiently high to cause skin problems for a user.
  • a particular preferred method of making the plastics of the present invention is to incorporate 5 to 30% by weight of perfume concentrate into EVA, preferably a grade having a vinyl acetate content of around 20%.
  • the preferred mode of incorporation is simple mixing carried out at slightly elevated temperature, for example 40°C, for several hours.
  • the resultant mixture is preferably matured by maintaining it at the mixing temperature for at least 12 hours.
  • the matured scenting agent/intermediate carrier mixture may be mixed into and incorporated with the plastics material such as polyethylene.
  • the amount of scented EVA in the mixture with the polyethylene is preferably 0.5 to 5% by weight of the mixture.
  • the plastics so formed may then be made into an item of commerce. It has been found that a sponge made from mesh extruded from this resultant plastics remains scented for at least ten months.
  • the plastics of the present invention may be used in manufacturing items other than plastic sponges, for instance, containers, items for scenting rooms or cars, or any other items for which plastics are used for manufacture .
  • the invention is illustrated by way of example with reference to the following specific example of the manufacture of plastics netting sponges for personal use.
  • EVA copolymer (vinyl acetate content 20%, Escorene Ultra ex Exxon Chemical Belgium) was charged into an 0.5 horsepower mixer with internal rotating blades together with 1.2 kg (12% by weight of the total mix) of concentrated perfume fragrance. The content of the mixer was then heated while mixing to a temperature of 40°C and mixed for 6 hours continuously. The resulting mixture was then left to mature while maintaining it at a temperature of 40°C, for 24 hours.
  • this mixture was then blended with polyethylene granules (PEHD grade 7, ex BASF) at a rate of one part by weight mixture to 19 parts by weight polyethylene granules, and the resulting mixture loaded into a Bardera extruder fitted with a net-manufacturing counter-rotating head extrusion mechanism with an extruding capacity of 180 to 220 threads. Netting was extruded from the heated mix (the extrusion nozzle temperature was kept in the range of 110-130°C, slightly above the temperature of around 110°C at which the mixture became homogeneous), cooled, stretched linearly at a stretch ration of 5 to 6, passed through an antiseptic water bath, dried and would into rolls.
  • PEHD grade 7, ex BASF polyethylene granules
  • the netting so manufactured was fashioned into sponges as set out in US-A-5144744.
  • the sponges had a pleasant fragrance which was retained even after 6 months normal daily use.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Fats And Perfumes (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

Methods of scenting plastics by incorporating scenting material into a carrier and then incorporating the scented carrier into a plastics material are disclosed. A wide variety of fragrances can be incorporated into vinyl-acetate-containing polymers, particularly EVA, and the resulting scented material incorporated into other plastics such as polyethylene. The resulting scented plastics material stays scented for a long time. This is particularly valuable for the manufacture of articles which are desirably scented, for example polyethylene netting sponges.

Description

SCENTED PLASTICS
This invention relates to plastics incorporating a scent within the physical structure of a plastic and in particular plastics that may be extruded into a desired configuration .
In many spheres of activity it has been found that there is a consumer desire for plastic articles to be scented with a particular scent or smell, hereafter simply referred to as "scent". The substance that produces the scent may simply be referred to simply as the "scenting agent" which may be comprised of one or more perfumes, perfume concentrates, or any other known substances used for producing a desired smell or odour.
The current method of manufacturing such articles is simply to manufacture an article out of an appropriate plastics and then coat the substance of that article with an appropriate scenting agent, that scenting agent either being applied to the surface of the article on its own, or being incorporated into an appropriate carrier substance that will help the scenting agent adhere to the surface of the plastics article.
This known method of scenting plastics articles is unsatisfactory in that the scenting agent can be rubbed or washed off the surface of the plastics article and thus the scenting of the plastics article lost. This is a particular problem if the article that is desired to be scented is one which may be expected to come into frequent contact with liquids . Such articles include plastics sponges for use in care of the body, or plastics sponges or abraders for use in washing items such as crockery, or plastics items that are frequently washed such as storage containers.
According to the present invention there is provided a method of producing a scented plastics composition which comprises incorporating a scenting agent into a vinyl acetate-containing carrier substance, and then incorporating the scented carrier substance into a plastics material to form a plastics material/scented carrier substance mixture. This mixture may be subsequently formed e.g. by conventional plastics forming processes into an item of scented plastics.
In the present invention "incorporate" should be understood to include homogenous mixing, adsorption onto the surface of an adsorptive material, absorption into the physical structure of an absorbent material, or any other physical or chemical bonding between the substance that is being incorporated, and the substance into which it is incorporated.
The method of the present invention has the particular advantage that by using an intermediate carrier substance it is possible to incorporate a scenting agent into the physical structure of a plastics material without substantial detriment to the properties of the plastics material. This has not previously proved possible.
In a particularly preferred embodiment of the present invention the carrier substance is an ethylene vinyl acetate polymer (EVA) and the plastics material is polyethylene. An alternative carrier substance may be a polymeric material based on a corn or maize derived starch and including a proportion of vinyl acetate.
It has been found that not all scents are suitable for incorporation into plastics. The scents that are suitable for incorporation into plastics are those that can withstand the temperatures involved in incorporation of the scented carrier substance into the plastics, and the formation or extrusion of the plastics into its desired shape, i.e. one in which the molecules that form the scent do not undergo chemical or physical degradation. When the carrier substance and plastics are EVA and polyethylene respectively, the typical maximum temperature involved with the incorporation of the scented carrier mixture into the polyethylene and formation of the resultant mixture into items of commerce is 130°C.
We have found that preferred fragrances for use in the present invention are non-water-soluble and do not contain glycol or any glycol derivative. Within this range, however, a wide variety of perfumes is commercially available. A further advantage of the present invention is that the scenting agent slowly diffuses out of the scented plastics. Thus the plastics give off a scented fragrance for extended periods of time. The period of time that the manufactured article remains scented is dependent upon the amount of scent initially incorporated into the carrier material, and the surface area of the article.
The plastics of the present invention have the further advantage that because the scenting agent is incorporated into the structure of the plastics, the only scenting agent that is abraded or washed off the surface of the plastics are the molecules of scenting agent that have diffused to the surface of the plastics. Thus repeated abrasion or washing does not render the plastics odourless until all of the scenting agent has diffused out of the plastics. This is likely to take many months.
A particularly preferred use of the scented plastics of the present invention is the creation of a synthetic sponge made of polyethylene formed into a rhomboidal structure mesh. The mesh is formed into tubes, and a number of lengths of tube are placed parallel one to the other, the parallel tubular lengths of mesh are then placed under tension, the lengths of mesh secured one to the other by way of a tie or staple passing round the lengths of mesh at approximately their midpoints, and the tension released.
It has further been found that a sponge manufactured of the plastics of the present invention to the method set out above feels softer than a sponge made of polyethylene without any incorporated scenting agents, for example a sponge of the type disclosed in US-A-5144744. A further advantage of the plastics of the present invention is that because the perfuming agent is incorporated within the structure of the plastics there is only ever a small quantity of scenting agent on the surface of the plastics and, as such, the scenting agent is not of sufficient concentration to cause irritation to, or inflame allergies in, the skin of a user. This is in direct contrast to the previously known methods of producing scented plastics articles in which the concentration of the scenting agent on the surface of the sponge can be sufficiently high to cause skin problems for a user.
A particular preferred method of making the plastics of the present invention is to incorporate 5 to 30% by weight of perfume concentrate into EVA, preferably a grade having a vinyl acetate content of around 20%. The preferred mode of incorporation is simple mixing carried out at slightly elevated temperature, for example 40°C, for several hours. When the perfume concentrate is fully incorporated, the resultant mixture is preferably matured by maintaining it at the mixing temperature for at least 12 hours.
Thereafter, the matured scenting agent/intermediate carrier mixture may be mixed into and incorporated with the plastics material such as polyethylene. The amount of scented EVA in the mixture with the polyethylene is preferably 0.5 to 5% by weight of the mixture. The plastics so formed may then be made into an item of commerce. It has been found that a sponge made from mesh extruded from this resultant plastics remains scented for at least ten months. Clearly the plastics of the present invention may be used in manufacturing items other than plastic sponges, for instance, containers, items for scenting rooms or cars, or any other items for which plastics are used for manufacture .
The invention is illustrated by way of example with reference to the following specific example of the manufacture of plastics netting sponges for personal use.
EXAMPLE
10 Kg of EVA copolymer (vinyl acetate content 20%, Escorene Ultra ex Exxon Chemical Belgium) was charged into an 0.5 horsepower mixer with internal rotating blades together with 1.2 kg (12% by weight of the total mix) of concentrated perfume fragrance. The content of the mixer was then heated while mixing to a temperature of 40°C and mixed for 6 hours continuously. The resulting mixture was then left to mature while maintaining it at a temperature of 40°C, for 24 hours.
By simple mixing, this mixture was then blended with polyethylene granules (PEHD grade 7, ex BASF) at a rate of one part by weight mixture to 19 parts by weight polyethylene granules, and the resulting mixture loaded into a Bardera extruder fitted with a net-manufacturing counter-rotating head extrusion mechanism with an extruding capacity of 180 to 220 threads. Netting was extruded from the heated mix (the extrusion nozzle temperature was kept in the range of 110-130°C, slightly above the temperature of around 110°C at which the mixture became homogeneous), cooled, stretched linearly at a stretch ration of 5 to 6, passed through an antiseptic water bath, dried and would into rolls.
The netting so manufactured was fashioned into sponges as set out in US-A-5144744. The sponges had a pleasant fragrance which was retained even after 6 months normal daily use.

Claims

1. A method of producing a scented plastics composition which comprises incorporating a scenting agent into a vinyl acetate-containing carrier substance, and then incorporating the scented carrier substance into a plastics material to form a plastics material/scented carrier substance mixture.
2. A method according to claim 1 wherein the scenting agent is non-water-soluble and does not contain glycol or a glycol derivative.
3. A method according to claim 1 or 2 wherein the carrier substance is an ethylene vinyl acetate copolymer.
4. A method according to any of claims 1 to 3 wherein the scenting agent is incorporated into the carrier substance by mixing at elevated temperature.
5. A method according to claim 4 wherein the temperature is at least 40°C and mixing takes place for at least 5 hours .
6. A method according to claim 4 or 5 wherein after the mixing step, the mixture is matured at elevated temperature for at least 12 hours before being incorporated into the plastics material.
7. A method according to any one of the preceding claims wherein the proportion of scenting agent to carrier material is 5 to 30% by weight.
8. A method according to any one of the preceding claims wherein the proportion of scenting agent/carrier substance in the final plastics composition is 0.5 to 5% by weight.
9. A method of forming a plastics sponge having a long- lasting fragrance which comprises extruding a scented plastics composition made by the method of any one of the preceding claims into a netting form and forming a length of extruded netting into a compact sponge construction.
PCT/IB1998/000022 1997-01-10 1998-01-09 Scented plastics WO1998030621A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPC97A000001 1997-01-10
ITPC970001 ITPC970001A1 (en) 1997-01-10 1997-01-10 NET SPONGE WITH PERFUME RELEASE AND RELATED PRODUCTION METHOD.

Publications (1)

Publication Number Publication Date
WO1998030621A1 true WO1998030621A1 (en) 1998-07-16

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ID=11389217

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1998/000022 WO1998030621A1 (en) 1997-01-10 1998-01-09 Scented plastics

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IT (1) ITPC970001A1 (en)
WO (1) WO1998030621A1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0873711A3 (en) * 1997-04-24 1999-06-09 Luppi, Daniela A bath sponge made of perfumed polyethylene net
FR2817109A1 (en) * 2000-11-17 2002-05-24 Digiplug PROCESS FOR THE MANUFACTURE OF COVERS FOR PORTABLE TELEPHONES
WO2002042364A3 (en) * 2000-11-26 2002-08-22 Sakit Ltd Plastic films containing a fragrance and an odor barrier material
KR100431360B1 (en) * 2001-02-07 2004-05-14 우리켐테크(주) Resin composition for slow flavor emission
WO2006099889A1 (en) * 2005-03-23 2006-09-28 Bic Violex Sa Scented handle for use in a razor
US7908789B2 (en) * 2001-07-17 2011-03-22 John Brandon Dobbs Container with scented interior
US9717815B2 (en) 2014-07-30 2017-08-01 Georgia-Pacific Consumer Products Lp Air freshener dispensers, cartridges therefor, systems, and methods
USD925009S1 (en) 2018-10-25 2021-07-13 Fresh Products, Inc. Urinal screen
US11198997B2 (en) 2014-11-05 2021-12-14 Fresh Products, Inc. Urinal screens
US11337565B1 (en) 2021-11-24 2022-05-24 Philipp Maurer Marking device
USD960329S1 (en) 2014-11-05 2022-08-09 The Fresh Products, Inc. Urinal screen
US11585078B2 (en) 2017-12-20 2023-02-21 Fresh Products, Inc. Urinal screens
USD1078945S1 (en) 2022-07-13 2025-06-10 Fresh Products, Inc. Urinal screen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1538085A (en) * 1977-05-23 1979-01-10 Shell Int Research Odorant-polyolefin compositions
JPS59124941A (en) * 1982-12-29 1984-07-19 Nippon Petrochem Co Ltd Drug-containing resin composition and its molding
JPS6035029A (en) * 1983-08-08 1985-02-22 Mitsui Toatsu Chem Inc Granular fragrance masterbatch
JPS6253346A (en) * 1985-08-30 1987-03-09 Sekisui Chem Co Ltd Production of perfume-retaining olefinic resin foam
GB2194791A (en) * 1986-07-14 1988-03-16 Vysoka Skola Chem Tech Incorporating scenting material into plastics
JPS6377453A (en) * 1986-09-22 1988-04-07 株式会社　興人 Aromatic sheet
JPS6420853A (en) * 1987-07-17 1989-01-24 Ube Industries Gradual releasing preparation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1538085A (en) * 1977-05-23 1979-01-10 Shell Int Research Odorant-polyolefin compositions
JPS59124941A (en) * 1982-12-29 1984-07-19 Nippon Petrochem Co Ltd Drug-containing resin composition and its molding
JPS6035029A (en) * 1983-08-08 1985-02-22 Mitsui Toatsu Chem Inc Granular fragrance masterbatch
JPS6253346A (en) * 1985-08-30 1987-03-09 Sekisui Chem Co Ltd Production of perfume-retaining olefinic resin foam
GB2194791A (en) * 1986-07-14 1988-03-16 Vysoka Skola Chem Tech Incorporating scenting material into plastics
JPS6377453A (en) * 1986-09-22 1988-04-07 株式会社　興人 Aromatic sheet
JPS6420853A (en) * 1987-07-17 1989-01-24 Ube Industries Gradual releasing preparation

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 8435, Derwent World Patents Index; Class A17, AN 84-215801, XP002057995 *
DATABASE WPI Section Ch Week 8514, Derwent World Patents Index; Class A96, AN 85-084097, XP002057994 *
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PATENT ABSTRACTS OF JAPAN vol. 011, no. 246 (C - 439) 11 August 1987 (1987-08-11) *
PATENT ABSTRACTS OF JAPAN vol. 013, no. 199 (C - 594) 11 May 1989 (1989-05-11) *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0873711A3 (en) * 1997-04-24 1999-06-09 Luppi, Daniela A bath sponge made of perfumed polyethylene net
FR2817109A1 (en) * 2000-11-17 2002-05-24 Digiplug PROCESS FOR THE MANUFACTURE OF COVERS FOR PORTABLE TELEPHONES
WO2002042364A3 (en) * 2000-11-26 2002-08-22 Sakit Ltd Plastic films containing a fragrance and an odor barrier material
US6921581B2 (en) 2000-11-26 2005-07-26 Sakit Ltd. Plastic films containing a fragrance and an odor barrier material within and a method for their production
KR100431360B1 (en) * 2001-02-07 2004-05-14 우리켐테크(주) Resin composition for slow flavor emission
US7908789B2 (en) * 2001-07-17 2011-03-22 John Brandon Dobbs Container with scented interior
WO2006099889A1 (en) * 2005-03-23 2006-09-28 Bic Violex Sa Scented handle for use in a razor
US9717815B2 (en) 2014-07-30 2017-08-01 Georgia-Pacific Consumer Products Lp Air freshener dispensers, cartridges therefor, systems, and methods
US10391193B2 (en) 2014-07-30 2019-08-27 Gpcp Ip Holdings Llc Air freshener dispensers, cartridges therefor, systems, and methods
US11198997B2 (en) 2014-11-05 2021-12-14 Fresh Products, Inc. Urinal screens
US11396745B2 (en) 2014-11-05 2022-07-26 Fresh Products, Inc. Urinal screens
USD960329S1 (en) 2014-11-05 2022-08-09 The Fresh Products, Inc. Urinal screen
US11781305B2 (en) 2014-11-05 2023-10-10 Fresh Products, Inc. Urinal screens
US12139900B2 (en) 2014-11-05 2024-11-12 Fresh Products, Inc. Urinal screens
US12247381B2 (en) 2014-11-05 2025-03-11 Fresh Products, Inc. Urinal screens
US11585078B2 (en) 2017-12-20 2023-02-21 Fresh Products, Inc. Urinal screens
USD925009S1 (en) 2018-10-25 2021-07-13 Fresh Products, Inc. Urinal screen
USD1039121S1 (en) 2018-10-25 2024-08-13 Fresh Products, Inc. Urinal screen
US11337565B1 (en) 2021-11-24 2022-05-24 Philipp Maurer Marking device
USD1078945S1 (en) 2022-07-13 2025-06-10 Fresh Products, Inc. Urinal screen

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