JPS54133572A - Manufacturing of flame retardant laminate - Google Patents

Manufacturing of flame retardant laminate

Info

Publication number
JPS54133572A
JPS54133572A JP4154878A JP4154878A JPS54133572A JP S54133572 A JPS54133572 A JP S54133572A JP 4154878 A JP4154878 A JP 4154878A JP 4154878 A JP4154878 A JP 4154878A JP S54133572 A JPS54133572 A JP S54133572A
Authority
JP
Japan
Prior art keywords
flame retardant
methylol
varnish
guanamine
methylol melamine
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.)
Pending
Application number
JP4154878A
Other languages
Japanese (ja)
Inventor
Osamu Fujisawa
Shiyoujirou Takagi
Hiroshi Ono
Kazuo Okazaki
Tatsuharu Nakamura
Yasuhiko Ikeda
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.)
RIYOUDEN KASEI KK
Ryoden Kasei Co Ltd
Mitsubishi Electric Corp
Original Assignee
RIYOUDEN KASEI KK
Ryoden Kasei Co Ltd
Mitsubishi Electric Corp
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 RIYOUDEN KASEI KK, Ryoden Kasei Co Ltd, Mitsubishi Electric Corp filed Critical RIYOUDEN KASEI KK
Priority to JP4154878A priority Critical patent/JPS54133572A/en
Publication of JPS54133572A publication Critical patent/JPS54133572A/en
Pending legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

PURPOSE: To manufacture a thick, flame retardant laminate, easily, by hot-pressing a plurality of prepreg sheets obtained by using a methylol melamine, methylol guanamine, etc., as a pretreating agent as wall as flame retardant of varnish.
CONSTITUTION: A substrate such as kraft paper, etc., is impregnated with a pretreating solution obtained by dissolving methylol melamine, methylol guanamine, etc. in water, alcohol, etc., and a pretreated substrate containing 5W20 wt% of the pretreating agent can be obtained. A prepreg sheet is prepared by coating the avobe pretreated substrate with a solution or varnish of a novolak phenolic resin which is made flame retardant by adding methylol melamine, methylol guanamine, etc. A desired number of the prepreg sheets are stacked, and pressed at about 140W160°C and about 80W120 kg/cm2 for about 1 hour to obtain the flame retardant laminate. The amount of the methylol melamine, etc., in the varnish is 30W60 wt% based on the novolak phenolic resin.
COPYRIGHT: (C)1979,JPO&Japio
JP4154878A 1978-04-08 1978-04-08 Manufacturing of flame retardant laminate Pending JPS54133572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4154878A JPS54133572A (en) 1978-04-08 1978-04-08 Manufacturing of flame retardant laminate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4154878A JPS54133572A (en) 1978-04-08 1978-04-08 Manufacturing of flame retardant laminate

Publications (1)

Publication Number Publication Date
JPS54133572A true JPS54133572A (en) 1979-10-17

Family

ID=12611469

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4154878A Pending JPS54133572A (en) 1978-04-08 1978-04-08 Manufacturing of flame retardant laminate

Country Status (1)

Country Link
JP (1) JPS54133572A (en)

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