JPS5634718A - Preparation of modified phenolic resin - Google Patents

Preparation of modified phenolic resin

Info

Publication number
JPS5634718A
JPS5634718A JP11084079A JP11084079A JPS5634718A JP S5634718 A JPS5634718 A JP S5634718A JP 11084079 A JP11084079 A JP 11084079A JP 11084079 A JP11084079 A JP 11084079A JP S5634718 A JPS5634718 A JP S5634718A
Authority
JP
Japan
Prior art keywords
phenolic resin
phenol
amount
modified phenolic
component
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
JP11084079A
Other languages
Japanese (ja)
Inventor
Kohei Kodera
Masahiro Matsumura
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 JP11084079A priority Critical patent/JPS5634718A/en
Publication of JPS5634718A publication Critical patent/JPS5634718A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To prepare a modified phenolic resin having high low-temperature punchability and excellent dielectric constant and dielectric loss tangent, by using a polyester composed of adipic acid, phthalic acid, and propylene glycol as a modifier together with other modifier.
CONSTITUTION: (A) A polyester synthesized from adipic acid, phthalic acid and propylene glycol, is added together with (B) a conventional modifier composed of (a) a bifunctional phenol (e.g. nonyl phenol), (b) a polypropylene glycol derivative (c) a polyethylene glycol derivative and (d) monoglycidyl ether of a 9W20C aliphatic alcohol, to a resol-type phenolic resin or varnish containing the same. The amount of the component (a) is 10W40g per 1mol of the phenol, the amount of the component (b) is 0.6W0.8pt.wt. per 1pt.wt. of the sum of the components (c) and (A), the total amount of the components (a), (b), (c), and (A) is 80W110g per 1mol of the phenol, and the amount of the component (d) is pref. 5W30 PHR based on the modified phenolic resin.
COPYRIGHT: (C)1981,JPO&Japio
JP11084079A 1979-08-29 1979-08-29 Preparation of modified phenolic resin Pending JPS5634718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11084079A JPS5634718A (en) 1979-08-29 1979-08-29 Preparation of modified phenolic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11084079A JPS5634718A (en) 1979-08-29 1979-08-29 Preparation of modified phenolic resin

Publications (1)

Publication Number Publication Date
JPS5634718A true JPS5634718A (en) 1981-04-07

Family

ID=14545989

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11084079A Pending JPS5634718A (en) 1979-08-29 1979-08-29 Preparation of modified phenolic resin

Country Status (1)

Country Link
JP (1) JPS5634718A (en)

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