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MY119783A - Prepreg, process for producing the same and printed circuit substrate/ board using the same - Google Patents

Prepreg, process for producing the same and printed circuit substrate/ board using the same

Info

Publication number
MY119783A
MY119783A MYPI9701098A MY119783A MY 119783 A MY119783 A MY 119783A MY PI9701098 A MYPI9701098 A MY PI9701098A MY 119783 A MY119783 A MY 119783A
Authority
MY
Malaysia
Prior art keywords
film
para
porous
aromatic polyamide
thermoplastic resin
Prior art date
Application number
Inventor
Tsutomu Takahashi
Yoshifumi Tsujimoto
Hiroaki Kumada
Hiroyuki Sato
Original Assignee
Sumitomo Chemical Co
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 Sumitomo Chemical Co filed Critical Sumitomo Chemical Co
Priority to MYPI9701098 priority Critical patent/MY119783A/en
Publication of MY119783A publication Critical patent/MY119783A/en

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Abstract

THE PRESENT INVENTION PROVIDES A LIGHTWEIGHT PREPREG HAVING UNIFORM FORMATION, LOW LINEAR THERMAL EXPANSION COEFFICIENT AND GOOD MECHANICAL STRENGTH, COMPRISING A POROUS PARA-ORIENTED ARQMATIC POLYAMIDE FILM AND A THERMOPLASTIC RESIN AND/OR A THERMOSETTING RESIN, THE POROUS PARA-ORIENTED AROMATIC POLYAMIDE FILM BEING IMPREGNATED WITH THE THERMOPLASTIC RESIN AND/OR THE THERMOSETTING RESIN, A PROCESS FOR PRODUCING THE SAME, AND A PRINTED CIRCUIT SUBSTRATE/BOARD USING THE SAME. A PROCESS FOR PRODUCING FOR PRODUCING A PREPREG COMPRISING A POROUS PARA-ORIENTED AROMATIC POLYAMIDE FILM AND A THERMOPLASTIC RESIN AND/OR A THERMOSETTING RESIN, THE POROUS PARA-ORIENTED AROMATIC POLYAMIDE FILM BEING IMPREGNATED WITH THE THERMOPLASTIC RESIN AND/OR THERMOSETTING RESIN, WHICH COMPRISES THE FOLLOWING STEPS (A) TO (D): STEP (A) OF FORMING A FILM-LIKE MATERIAL FROM A SOLUTION CONTAINING 1 TO 10% BY WEIGHT OF A PARA-ORIENTED AROMATIC POLYAMIDE HAVING AN INHERENT VISCOSITY OF 1.0 TO 2.8 DL/G AND 1 TO 10% BY WEIGHT OF A CHLORIDE OF AN ALKALINE METAL OR AN ALKALINE EARTH METAL IN A POLAR AMIDE SOLVENT OR A POLAR UREA SOLVENT; STEP (B) OF MAINTAINING THE FILM-LIKE MATERIAL AT A TEMPERATURE OF NOT LESS THAN 20°C OR NOT MORE THAN -5OC TO DEPOSIT THE PARA-ORIENTED AROMATIC POLYAMIDE FROM THE FILM-LIKE MATERIAL; STEP (C) OF IMMERSING THE FILM-LIKE MATERIAL OBTAINED IN THE STEP (B) IN AN AQUEOUS SOLUTION OR AN ALCOHOLIC SOLUTION TO ELUTE THE SOLVENT AND THE CHLORIDE OF THE ALKALINE METAL OR ALKALINE EARTH METAL, FOLLOWED BY DRYING TO OBTAIN A PARA-ARAMID POROUS FILM; AND STEP (D) OF IMPREGNATING THE POROUS FILM OBTAINED IN THE STEP (C) AS A SUBSTRATE WITH THE THERMOPLASTIC RESIN AND/OR THERMOSETTING RESIN TO PRODUCE A PREPREG.
MYPI9701098 1997-03-15 1997-03-15 Prepreg, process for producing the same and printed circuit substrate/ board using the same MY119783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MYPI9701098 MY119783A (en) 1997-03-15 1997-03-15 Prepreg, process for producing the same and printed circuit substrate/ board using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MYPI9701098 MY119783A (en) 1997-03-15 1997-03-15 Prepreg, process for producing the same and printed circuit substrate/ board using the same

Publications (1)

Publication Number Publication Date
MY119783A true MY119783A (en) 2005-07-29

Family

ID=47227316

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI9701098 MY119783A (en) 1997-03-15 1997-03-15 Prepreg, process for producing the same and printed circuit substrate/ board using the same

Country Status (1)

Country Link
MY (1) MY119783A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2060490A (en) * 1979-10-16 1981-05-07 Technochemie Gmbh Composite Material and a Process for Manufacturing the Same
US5002637A (en) * 1987-11-30 1991-03-26 Honshu Paper Co. Ltd. Composite material reinforced by para-oriented aramide fiber sheet and process for preparing the same
WO1993000389A1 (en) * 1991-06-26 1993-01-07 E.I. Du Pont De Nemours And Company Ballistic composite

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2060490A (en) * 1979-10-16 1981-05-07 Technochemie Gmbh Composite Material and a Process for Manufacturing the Same
US5002637A (en) * 1987-11-30 1991-03-26 Honshu Paper Co. Ltd. Composite material reinforced by para-oriented aramide fiber sheet and process for preparing the same
WO1993000389A1 (en) * 1991-06-26 1993-01-07 E.I. Du Pont De Nemours And Company Ballistic composite

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, VOL.120, NO.26,27 JUNE 1994 COLUMBUS, OHIO, US; ABSTRACT NO. 337120, XP0020228411 *

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