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WO1993009187A1 - Pigments traites avec un dispersant - Google Patents

Pigments traites avec un dispersant Download PDF

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Publication number
WO1993009187A1
WO1993009187A1 PCT/US1992/009215 US9209215W WO9309187A1 WO 1993009187 A1 WO1993009187 A1 WO 1993009187A1 US 9209215 W US9209215 W US 9209215W WO 9309187 A1 WO9309187 A1 WO 9309187A1
Authority
WO
WIPO (PCT)
Prior art keywords
dispersant
composition
thickener
pigment
hydrophobe
Prior art date
Application number
PCT/US1992/009215
Other languages
English (en)
Inventor
J. Edward Glass
David John Lundberg
Original Assignee
E.I. Du Pont De Nemours And Company
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 E.I. Du Pont De Nemours And Company filed Critical E.I. Du Pont De Nemours And Company
Publication of WO1993009187A1 publication Critical patent/WO1993009187A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • C09C1/3676—Treatment with macro-molecular organic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/36—Compounds of titanium
    • C09C1/3692—Combinations of treatments provided for in groups C09C1/3615 - C09C1/3684
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/10—Treatment with macromolecular organic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/02—Emulsion paints including aerosols
    • C09D5/024—Emulsion paints including aerosols characterised by the additives
    • C09D5/028—Pigments; Filters
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/80—Processes for incorporating ingredients
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Definitions

  • the invention relates to disper ⁇ ant treated pigment for use in aqueous paint formulations which result in dried films with improved gloss properties.
  • 2-Description of the Prior Art An aqueous paint formulation represents a union of separate disperse systems including suspensions of polymer colloid (latex) and pigment. Film formation occurs by fusion of the latex (binder) particles after the water evaporates. Film gloss largely depends on paint viscosity. Pigment contributes to gloss in a negative way. Pigment aggregates that penetrate the smooth paint surface cause random light scattering, thus decreasing specular reflection or gloss.
  • Thickeners are used in emulsion paints to increase viscosity at high shear rates by increasing the applied film thickness and hence improving flow and leveling. Appropriate viscosity at high shear is needed to provide correct brush drag for proper spreading rate and coverage uniformity.
  • Associate thickeners are used for this purpose and, in general, are hydrophobically-modified water-soluble polymers.
  • U.S. Patent 4,177,081 discloses an aqueous slurry of T1O2 pigment to provide a high gloss finish to paint films derived from acrylic water based systems. It describes the use of a suitable pigment dispersant system.
  • U.S. Patent 4,110,292 discloses a method of producing a high gloss, air drying water base, pigmented latex paint by grinding a pigment into a water- free solution of a carboxyl-functional addition solution copolymerized copolymer of a monoethylenically unsaturated monomers including at least about 10% by weight of a monoethylenically unsaturated carboxylic acid in water miscible alcoholic organic solvent, the copolymer being at least partially neutralized at the time of grinding with an hydroxy amine, to render the copolymer dJpersible in water, and thereby form a nonaqueous pigment paste, and then mixing the nonaqueous pigment paste with an air drying aqueous latex dispersion obtained with an aque
  • Alkaline aqueous latex paints which contain a combination of thickeners constituted by: (I) a urethane polymer having at least three hydrophobic groups, at least two of which are terminal hydrophobic groups linked by hydrophilic groups; and (II) an alkali soluble aqueous emulsion copolymer of; (A) about 20-70 weight percent of an alpha, beta monoethylenically unsaturated carboxylic acid, typically methacrylic acid; (B) about 20-80 weight percent of a monoethylenically unsaturated monomer lacking surfactant capacity, typically ethyl acrylate; (C) about 0.5-60 weight percent of a nonionic urethane monomer which is the urethane reaction product of a monohydric nonionic surfactant with a monoethylenically
  • U.S. Patent 4,722,962 discloses nonionic associative thickeners, suitable for use in aqueous coating compositions, comprising a water soluble polymer of (a) from about 40 percent to about 98 percent, preferably from 60-95 percent by weight of a monoethylenically unsaturated monomer such as acrylamide, N,N-dimethyl acrylamide, vinyl pyrrolidone, hydroxyethyl acrylate and mixtures thereof; and (b) from about 2 percent to about 60 percent, preferably from 5 to 40 percent, by weight of a nonionic urethane monomer which is the reaction product of a monohydric nonionic surfactant with a monoethylenically unsaturated monoisocyanate.
  • a water soluble polymer of (a) from about 40 percent to about 98 percent, preferably from 60-95 percent by weight of a monoethylenically unsaturated monomer such as acrylamide, N,N-dimethyl acrylamide
  • the monohydric noniGuic surfactants suitable for use in component (b) include ethoxylated hydrophobes containing adducted ethylene oxide to provide the hydrophilic portion of the molecule.
  • the hydrophobes usually include an aliphatic alcohol or alkyl phenol in which a carbon chain containing at least 6 carbon atoms provides the hydrophobic portion of the surfactant.
  • These surfactants are illustrated by ethylene oxide adducts of dodecyl, octyl alcohol, nonyl phenol and dinoyl phenol which are commercially available and which contain from about 5 to 150 moles, preferably from 10 to 60 moles of ethylene oxide per mole of hydrophobe.
  • U.S. Patent 4,079,028 discloses latex and other aqueous systems thickened by low molecular weight urethane polymers having at least three hydrophobic groups interconnected by hydrophilic polyether groups. It is mentioned in column 7, lines 54-56, that in latex paints, polymers of the invention can provide excellent flow and leveling as well as thickening.
  • U.S. Patent 4,426,486 discloses water-soluble thermoplastic organic polymers, having segments of bunched monovalent hydrophobic groups, which provide improved thickening and leveling in aqueous systems.
  • the polymers have a weight average molecular weight of at least about 10,000.
  • SUMMARY OF THE INVENTION This invention relates to pigment particles having absorbed on their surface an hydrophobically modified dispersant interacting with an associate thickener which is a hydrophobe modified water soluble polymer.
  • the pigment particle when used in a paint provides improved thickening efficiency and produces a dried paint film of superior gloss.
  • the preferred pigment is Ti ⁇ 2 of a type used in latex paints.
  • Ti ⁇ 2 particles may be pretreated with various inorganic surface treatments, including silica and alumina.
  • various inorganic surface treatments including silica and alumina.
  • Numerous Ti ⁇ 2 pigments are available from commercial sources, such as E.I. DuPont de
  • the ⁇ O2 particles will preferably be of uniformly small particle size with at least 95 mass percent of the average particle size being one micron or less and with an average particle size of less than about 0.6 microns.
  • the pigment volume concentration in the paint can range in the known fashion. A pigment volume concentration of at least 10% is usual, at least 20% is preferred. The examples use 21% pigment volume concentration.
  • Dispersants of the invention have a proton donating component to achieve adsorption on the pigment surface and a hydrophobic portion to facilitate adsorption on the pigment surface and to provide sites for hydrophobic interaction with the associate thickeners.
  • Hydrophobic acid copolymers such as the co-oligomer of maleic acid and alpha olefins have been found to provide sufficient hydrophobic sites and to be highly absorbed on the surface of the pigment in alkaline media. This is believed to be due in part to the difference in pK a of 1,2 contigious carboxyl units, relative to 1,3 alternating acid groups and in part to the presence of the repeating hydrophobic group. There are believed to be interactions between neighboring hydrophobic and carboxyl groups that lower the dielectric constant in the area around the carboxyls contigious to the hydrophobic groups.
  • the olefins of preference are alpha olefins having 5 to 25 carbon atoms, either branched or straight chained. More preferred are olefins having 10- 18 carbon atoms.
  • alpha olefins examples include diisobutylene, a branched olefin with 8 carbons and 5 carbons in the main chain, 1 - decene, a straight chain olefin with 10 carbon atoms, 1 - tetradecene, a straight chain olefin with 14 carbon atoms, and 1 - octadecene, a straight chain olefin with 18 carbon atoms. These olefins are hydrophobic and substantially alternate with the maleic acid in the copolymer.
  • TAMOL731 a diisobutylene-maleic acid copolymer hydrophobic dispersant sold by Rohm and Haas Co.
  • II alpha-olefin/maleic acid copolymers with alpha-olefin groups such as 1-decene (AO[C10]/MA), 1-tetradecene (AO[C14]/MA, and 1- octadecene (AO[C18j/MA).
  • the concentration of the dispersant can effect the paint in negative manner if formulated at too high or low a level.
  • the optimum dispersant levels is found by making slurries of varying dispersant levels and finding the level at which the viscosity is at a desired minimum. The formulation level is then increased, usually about 30% above the concentration at the viscosity minimum, to assure a level high enough to keep the pigment from flocculating.
  • the average level is usually from 0.3 to 1.5 grams dispersant per 100 grams of pigment when T1O2 is the pigment. Most preferred is about 0.75 gram dispersant per 100 grams of pigment. Associate Thickeners
  • the thickeners useful in the present invention contain hydrophobes which can interact with the dispersant absorbed on the pigment particle. It is believed that this interaction provides steric stabilization to the electrostatic forces provided by the dispersant's absorption and provides a greater barrier to flocculation of the pigment and thereby improvement in the film gloss.
  • the amount of thickener which interacts with the dispersant treated pigment particle is proportional to the amount of dispersant absorbed on the pigment surface, and to the size of the hydrophobic portion of the dispersant.
  • Associate thickeners of the invention include
  • HEUR hydrophobe modified ethoxylated-urethane polymers
  • Suitable HEUR products are available from commercial sources such as, Rohm and Haas, under the product designations, RM-825, QR-708, RM- 708, RM-825 and RM-1020; and Union Carbide, under the product designations, SCr-200, SCT-215, SCT-270, and SCT-275;
  • the diioscyanate may alipathic, cycloalipathic, or aromatic, but preferably is an olefinic diisocyanate.
  • Useful hydrophobe groups contained 4 to 18 carbon atoms, such as, cyclohexyl, octyl, octadecyl, dodecyl, ocr>l phenyl and nonyl phenyl.
  • a suitable diisocyanate such as, isophorone diisocyanate
  • the hydrophobe portion of the alcohol or alkylphenyl contain C4- C18 carbon atoms, such as, cyclohexyl, oc.yl, octadecyl, dodecyl, octyl phenyl and nonyl phenyl.
  • the amount of associated thickener added to the paint formulation is the amount sufficient to obtain the desired stormer visocity (KU) of 80-100. Normally the amount ranges from .20 to 2.50 grams per 100 grams of water.
  • Any conventional air drying emulsion latex used in the paint industry may be employed with the invention herein, such as, acrylic and vinyl acetate polymers.
  • "Acrylic potymer” means any polymer wherein at least 50% by weight is an acrylic or methacrylic acid or ester, including mixtures of such acids and esters individually and together.
  • the term "vinyl acetate polymer” means any polymer containing at least 50% by weight of vinyl acetate.
  • the more usual polymers include vinyl acetate-butyl acrylate copolymers, vinyl acetate-ethylene copolymers, and methyl methacrylate-ethyl acrylate (or butyl acrylate) copolymers.
  • the particle size of the latex will range from about 100 to 600 nm and the latex emulsion will contain 40-50% solids.
  • a paint is prepared by dispersing hydrophobic dispersant, standard formulation surfactant, standard freeze-thaw stabilizer, standard coalescing aid, standard anti-foaming agent, and standard anti-fungus agent in water in a suitable disperser such as a Cowles disc mill, adding the dry pigment at low speed, and grinding the mixture in the disperser at a speed and for a time ,e.g., 3900 rpm for 10 minutes, sufficient to obtain the desired fineness; and then adding standard latex, water, and a concentrated solution of the associate thickener in amounts necessary to achieve the desired viscosity over the desired shear rate range.
  • a suitable disperser such as a Cowles disc mill
  • a typical paint formulation in accordance with this invention contains 33% non-volatiles by volume, .79 v/v fraction latex, 0.21 v/v fraction pigment, 1.33 g. formulation surfactant/ 100 grams pigment and 0.75 gram hydrophobic dispersant /100 grams of pigment.
  • gloss apaint is drawn down to a thickness of 0.006 inch and is immediately dried under appropriate conditions.
  • the gloss of the dried paint film at 60 degrees and 20 degrees is measured using a Model CG-9095 Gardner MultiAngle Glossmeter. Readings are recorded 24 hours after application.
  • viscosity is reported in Krebs units (KU).
  • the viscosity is measured in a Stormer Viscometer using a fixed shear rate at 77 degrees F. and using a variable weight to power a stirrer paddle at a predetermined rotational velocity in the paint.
  • the weight needed for this purpose in grams, is converted to Krebs units in the standard manner.
  • the following Examples illustrate this invention.
  • Example 1, 1A, 2 and 2A demonstrate that the combination of hydrophobic dispersant and hydrophobe modified water soluble associate thickener ( EX 1 and 1A), produce better gloss and more efficient thickening per unit weight percent of the associated thickener than the combination of hydrophilic dispersant and associative thickener (2 and 2A).
  • Hydrophobic dispersant (TAMOL 731, diisobutylene/maleic acid copolymer) .53
  • Formulation surfactant (TERGITOL 15-S-9, b-C13H27(OCH2CH2)9OH .28
  • Anti-foaming agent (COLLOID 58 IB) .36
  • EXAMPLE 1A A composition is formulated as in Example 1 except 1- decene/maleic acid polymer [AO(C10)/MA is used instead of TAMOL 731.
  • a composition is formulated as in Example 1 except that a hydrophilic dispersant, TAMOL 850 (poly(methacrylic acid) PMMA homopolymer), replaces the hydrophobic dispersant.
  • a hydrophilic dispersant TAMOL 850 (poly(methacrylic acid) PMMA homopolymer)
  • a composition is formulated as in Example 1 except a hydrophilic dispersant, PMMA of approximately 5,000 molecular weight is used instead of
  • Latex paints prepared in accordance with Examples 1, 1 2, and 2A are compared in Table I.
  • Example Thickener Dispersant 3 (NP50C6)3N AO(C10)/MA 4 AO(C14)/MA 5 AO(C18)/MA 6 PMMA 7 (NP100)2TMXDI AO(C10)/MA 8 AO(C14)/MA 9 AO(C18)/MA 10 PMMA
  • non-hydrophobe modified thickeners viz., three poly(oxyethylene) polymers of molecular weights 100,000 (POE-100K), 35,000 (POE-35K), 12,000 (POE-12K) and hydroxyethyl cellulose (HEC), and four hydrophobe modified ethoxylate urethane (IIEUR) thickeners, were used.
  • Table III shows the amounts of non-hydrophobe modified thickeners (nos. 12-15), and of hydrophobe modified thickeners (nos 16-19), necessary to attain 90 KU viscosity with the hydrophilic PMMA dispersant, and the corresponding amounts to attain the viscosities shown with the hydrophobic
  • Table IIIA shows results using Ti ⁇ 2 pigment which has a coating primarily of alumina.
  • Table IIIB shows corresponding results with TiC>2 pigment which has more silica in the surface treatment. This Ti ⁇ 2 pigment also needs less
  • HEUR thickener to viscosify the dispersant stabilized with the hydrophobic DIBMA dispersant (nos. 24(b)-27(b)) than with the hydrophilic PMMA dispersant.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

Particule de pigment, plus particulièrement de TiO2, comprenant sur sa surface un dispersant modifié de manière hydrophobe qui est absorbé et qui interagit avec un épaississeur polymère associatif soluble dans l'eau modifié par hydrophobe. Lorsqu'on utilise cette particule de pigment comme composant d'une formulation de peinture latex, on obtient des films secs présentant de meilleures propriétés de brillance.
PCT/US1992/009215 1991-10-31 1992-10-29 Pigments traites avec un dispersant WO1993009187A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78572191A 1991-10-31 1991-10-31
US785,721 1991-10-31

Publications (1)

Publication Number Publication Date
WO1993009187A1 true WO1993009187A1 (fr) 1993-05-13

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PCT/US1992/009215 WO1993009187A1 (fr) 1991-10-31 1992-10-29 Pigments traites avec un dispersant

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WO (1) WO1993009187A1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0842993A1 (fr) * 1996-11-18 1998-05-20 Ultramarinfabrik Schindlerswerk Sächsisches Blaufarbenwerk GmbH Procédé de préparation de poudres de colorants instantanées et poudres de colorants instantanées ainsi préparées
EP0867481A1 (fr) * 1997-03-27 1998-09-30 Hercules Incorporated Utilisation de compositions de revêtement protecteur pour des revêtements industriels et compositions aqueuses de revêtement
EP1236776A1 (fr) * 2001-02-28 2002-09-04 Rohm And Haas Company Procédé pour l'amélioration de la stabilité de la viscosité par l'addition d'un composé colorant
WO2002092704A1 (fr) * 2001-05-14 2002-11-21 The Boeing Company Procede de preparation d'une peinture electroconductrice
US6887928B2 (en) 2001-02-28 2005-05-03 Rohm And Haas Company Method of improving viscosity stability upon addition of a colorant component
US6919400B2 (en) 2000-02-18 2005-07-19 Rohm And Haas Company Stable mixtures containing opacifying pigments
WO2006102011A1 (fr) * 2005-03-18 2006-09-28 Valspar Sourcing, Inc. Compositions de colorant universel pour peinture a faible teneur en cov
WO2009104042A1 (fr) * 2008-02-19 2009-08-27 Sensient Imaging Technologies Sa Encres comprenant des épaississants et leurs procédés de fabrication et d'utilisation
JP2011523429A (ja) * 2008-05-14 2011-08-11 コアテツクス・エス・アー・エス 輝度維持増強のためのアルキド塗料でのアクリル分散剤／連合増粘剤対合の使用
US8141599B2 (en) 2008-06-17 2012-03-27 Valspar Sourcing, Inc. Expanded color space architectural paint and stain tinting system
WO2013002999A1 (fr) * 2011-06-30 2013-01-03 Rohm And Haas Company Composition contenant un agent rhéologique associatif et des particules de pigment encapsulées dans un polymère
US8440752B2 (en) 2001-02-22 2013-05-14 Valspar Sourcing, Inc. Coating compositions containing low VOC compounds
JPWO2015115634A1 (ja) * 2014-02-03 2017-03-23 株式会社Adeka 粘性調整剤組成物
CN111307741A (zh) * 2020-03-18 2020-06-19 龙佰四川钛业有限公司 一种色母级钛白粉疏水性检测方法
AU2017296317B2 (en) * 2016-07-12 2023-05-18 Armstrong World Industries, Inc. High solids color face and edge coatings for building panels
US12410049B2 (en) 2017-07-28 2025-09-09 Swimc Llc Solvent-borne paints and stains tintable with water-only colorants

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA935255A (en) * 1971-02-12 1973-10-16 Canadian Titanium Pigments Limited High-solids tio2 pigment and method for making same
US4170485A (en) * 1978-08-22 1979-10-09 American Cyanamid Company Titanium dioxide slurries from recycle material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA935255A (en) * 1971-02-12 1973-10-16 Canadian Titanium Pigments Limited High-solids tio2 pigment and method for making same
US4170485A (en) * 1978-08-22 1979-10-09 American Cyanamid Company Titanium dioxide slurries from recycle material

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPIL Section Ch, Week 7, Derwent Publications Ltd., London, GB; Class A25, AN 89-049221 *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 134 (C-581)4 April 1989 *
PROGRESS IN ORGANIC COATINGS vol. 17, 1989, pages 155 - 173 J. S. BERGH ET AL. 'RHEOLOGY OF ASSOCIATIVE THICKENER PIGMENT AND PIGMENTED COMMERCIAL LATEX DISPERSIONS' cited in the application *

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0842993A1 (fr) * 1996-11-18 1998-05-20 Ultramarinfabrik Schindlerswerk Sächsisches Blaufarbenwerk GmbH Procédé de préparation de poudres de colorants instantanées et poudres de colorants instantanées ainsi préparées
EP0867481A1 (fr) * 1997-03-27 1998-09-30 Hercules Incorporated Utilisation de compositions de revêtement protecteur pour des revêtements industriels et compositions aqueuses de revêtement
US6919400B2 (en) 2000-02-18 2005-07-19 Rohm And Haas Company Stable mixtures containing opacifying pigments
US8440752B2 (en) 2001-02-22 2013-05-14 Valspar Sourcing, Inc. Coating compositions containing low VOC compounds
CN1325584C (zh) * 2001-02-28 2007-07-11 罗姆和哈斯公司 通过添加着色剂组分来改进粘度稳定性的方法
US6887928B2 (en) 2001-02-28 2005-05-03 Rohm And Haas Company Method of improving viscosity stability upon addition of a colorant component
US7125919B2 (en) 2001-02-28 2006-10-24 Rohm And Haas Company Method of improving viscosity stability upon addition of a colorant component
EP1236776A1 (fr) * 2001-02-28 2002-09-04 Rohm And Haas Company Procédé pour l'amélioration de la stabilité de la viscosité par l'addition d'un composé colorant
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