JPS5770127A - Production of prepreg - Google Patents

Production of prepreg

Info

Publication number
JPS5770127A
JPS5770127A JP14566880A JP14566880A JPS5770127A JP S5770127 A JPS5770127 A JP S5770127A JP 14566880 A JP14566880 A JP 14566880A JP 14566880 A JP14566880 A JP 14566880A JP S5770127 A JPS5770127 A JP S5770127A
Authority
JP
Japan
Prior art keywords
bromine
specified
prepreg
dicyandiamide
hydroxyphenyl
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP14566880A
Other languages
Japanese (ja)
Other versions
JPS6345695B2 (en
Inventor
Hidetoshi Innami
Seiichi Akiyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Kasei Corp
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Asahi Kasei Kogyo KK
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 Asahi Chemical Industry Co Ltd, Asahi Kasei Kogyo KK filed Critical Asahi Chemical Industry Co Ltd
Priority to JP14566880A priority Critical patent/JPS5770127A/en
Publication of JPS5770127A publication Critical patent/JPS5770127A/en
Publication of JPS6345695B2 publication Critical patent/JPS6345695B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Reinforced Plastic Materials (AREA)

Abstract

PURPOSE: To obtain a flame-retarding uniformly curing prepreg, by impregnating a fibrous reinforcing material with a varinish consisting of a liquid bromine-containing epoxy resin having a specified bromine content and a specified specific gravity and dicyandiamide having a specified particle size.
CONSTITUTION: A solventless varnish is obtained by adding a normally liquid bromin-containing epoxy resin (A), bromine content 16W32wt%, specific gravity at 25°C 1.33W1.52, to (B)dicyandiamide, average particle size ≤μm, and unformly milling the mixture in, for example, a three-roller mill. Said varnish is infiltrated into a fibrous reinforcing material, e.g., glass, asbestos, and cured by heating in a hot air oven at 110W160°C to obtain a prepreg. Resin A can be obtained, for example, by reacting a 2,2-bis(4-hydroxyphenyl)alkane, a bromine-substituted 2,2- bis(4-hydroxyphenyl)alkane and an epihalohydrin.
EFFECT: Excellence in mechanical, electrical and thermal properties and chemical resistance.
USE: Electric and electronic industries.
COPYRIGHT: (C)1982,JPO&Japio
JP14566880A 1980-10-20 1980-10-20 Production of prepreg Granted JPS5770127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14566880A JPS5770127A (en) 1980-10-20 1980-10-20 Production of prepreg

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14566880A JPS5770127A (en) 1980-10-20 1980-10-20 Production of prepreg

Publications (2)

Publication Number Publication Date
JPS5770127A true JPS5770127A (en) 1982-04-30
JPS6345695B2 JPS6345695B2 (en) 1988-09-12

Family

ID=15390317

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14566880A Granted JPS5770127A (en) 1980-10-20 1980-10-20 Production of prepreg

Country Status (1)

Country Link
JP (1) JPS5770127A (en)

Also Published As

Publication number Publication date
JPS6345695B2 (en) 1988-09-12

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