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JPS54100465A - Production of flame-retardant laminate - Google Patents

Production of flame-retardant laminate

Info

Publication number
JPS54100465A
JPS54100465A JP768378A JP768378A JPS54100465A JP S54100465 A JPS54100465 A JP S54100465A JP 768378 A JP768378 A JP 768378A JP 768378 A JP768378 A JP 768378A JP S54100465 A JPS54100465 A JP S54100465A
Authority
JP
Japan
Prior art keywords
pretreatment agent
coated
base material
flame
impregnated
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
JP768378A
Other languages
Japanese (ja)
Inventor
Osamu Fujisawa
Shoji Takagi
Hiroshi Ono
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.)
Mitsubishi Electric Corp
Original Assignee
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP768378A priority Critical patent/JPS54100465A/en
Publication of JPS54100465A publication Critical patent/JPS54100465A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: After impregnated with a specific pretreatment agent, the base material is coated with a varnish containing a novolak type plenolic resin and the pretreatment agent, and laminated to produce said flame-retardant laminate with outstanding heat resistance, mechanical properties, and processability.
CONSTITUTION: A methylolated melamine or methylolated guanamine is made into an aqueous solution to prepare the pretreatment agent. The base material is impregnated or coated with the pretreatment agent in an amount of about 5W20 wt% and adequately heat treated. The resulting base material is coated with a solution of a novolak type phenolic resin containing a methylolated melamine or guanamine as a flame retarder and dried to form prepregs. Prescribed sheets of prepregs are stacked and heated under pressure.
EFFECT: The laminates can readily be produced without cracking even when they are increased in thickness.
COPYRIGHT: (C)1979,JPO&Japio
JP768378A 1978-01-25 1978-01-25 Production of flame-retardant laminate Pending JPS54100465A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP768378A JPS54100465A (en) 1978-01-25 1978-01-25 Production of flame-retardant laminate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP768378A JPS54100465A (en) 1978-01-25 1978-01-25 Production of flame-retardant laminate

Publications (1)

Publication Number Publication Date
JPS54100465A true JPS54100465A (en) 1979-08-08

Family

ID=11672579

Family Applications (1)

Application Number Title Priority Date Filing Date
JP768378A Pending JPS54100465A (en) 1978-01-25 1978-01-25 Production of flame-retardant laminate

Country Status (1)

Country Link
JP (1) JPS54100465A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57123613A (en) * 1981-01-24 1982-08-02 Kanegafuchi Chemical Ind Electric insulating plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57123613A (en) * 1981-01-24 1982-08-02 Kanegafuchi Chemical Ind Electric insulating plate
JPH0217886B2 (en) * 1981-01-24 1990-04-23 Kanegafuchi Chemical Ind

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