JPS5562916A - Preparation of modified phenolic resin - Google Patents

Preparation of modified phenolic resin

Info

Publication number
JPS5562916A
JPS5562916A JP13611578A JP13611578A JPS5562916A JP S5562916 A JPS5562916 A JP S5562916A JP 13611578 A JP13611578 A JP 13611578A JP 13611578 A JP13611578 A JP 13611578A JP S5562916 A JPS5562916 A JP S5562916A
Authority
JP
Japan
Prior art keywords
phenolic resin
preparation
modified phenolic
modified
molecular weight
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
JP13611578A
Other languages
Japanese (ja)
Inventor
Kohei Kodera
Kunio Sakamoto
Yoshiaki Ezaki
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP13611578A priority Critical patent/JPS5562916A/en
Publication of JPS5562916A publication Critical patent/JPS5562916A/en
Pending legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

PURPOSE: To prepare a modified phenolic resin useful for prepreg capable of giving laminates having improved electrical insulating properties, flexibility, and punchability, by modifying a phenolic resin with a polyalkylene glycol glycidyl ether.
CONSTITUTION: (A) 100 parts by wt. of a phenolic resin is modified with (B) 5W30 parts by wt. of a polyalkylene glycol glycidyl ether having a number-average molecular weight of preferably ≤1,000. If the molecular weight exceeds 1,000, the bulge suppressing effect is reduced. Monoglycidyl or diglycidyl ether may be cited as (B); however, only the diglycidyl ether provides the prevention of bulge.
COPYRIGHT: (C)1980,JPO&Japio
JP13611578A 1978-11-04 1978-11-04 Preparation of modified phenolic resin Pending JPS5562916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13611578A JPS5562916A (en) 1978-11-04 1978-11-04 Preparation of modified phenolic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13611578A JPS5562916A (en) 1978-11-04 1978-11-04 Preparation of modified phenolic resin

Publications (1)

Publication Number Publication Date
JPS5562916A true JPS5562916A (en) 1980-05-12

Family

ID=15167640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13611578A Pending JPS5562916A (en) 1978-11-04 1978-11-04 Preparation of modified phenolic resin

Country Status (1)

Country Link
JP (1) JPS5562916A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61296199A (en) * 1985-06-20 1986-12-26 山陽国策パルプ株式会社 Raw paper form electric insulating laminate board
JPH02169613A (en) * 1988-12-21 1990-06-29 Matsushita Electric Works Ltd Phenolic resin composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61296199A (en) * 1985-06-20 1986-12-26 山陽国策パルプ株式会社 Raw paper form electric insulating laminate board
JPH02169613A (en) * 1988-12-21 1990-06-29 Matsushita Electric Works Ltd Phenolic resin composition

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