JPS5586808A - Preparation of modified phenol-formaldehyde resin - Google Patents

Preparation of modified phenol-formaldehyde resin

Info

Publication number
JPS5586808A
JPS5586808A JP16375978A JP16375978A JPS5586808A JP S5586808 A JPS5586808 A JP S5586808A JP 16375978 A JP16375978 A JP 16375978A JP 16375978 A JP16375978 A JP 16375978A JP S5586808 A JPS5586808 A JP S5586808A
Authority
JP
Japan
Prior art keywords
phenol
formaldehyde
alcohol
reaction mixture
modified phenol
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
JP16375978A
Other languages
Japanese (ja)
Inventor
Kohei Yasuzawa
Susumu Koarai
Yukio Yoshimura
Ken Nanaumi
Takeshi Yoshida
Toyotarou Shinkou
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.)
Showa Denko Materials Co Ltd
Original Assignee
Hitachi Chemical Co 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 Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP16375978A priority Critical patent/JPS5586808A/en
Publication of JPS5586808A publication Critical patent/JPS5586808A/en
Pending legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

PURPOSE: To obtain a resin useful for producing laminated sheets, having improved water absorption, dielectric characteristics, and heat resistance, by reacting a phenol with a reactive plasticizer, followed by reacting the reaction mixture with a formaldehyde in the presence of alcohol.
CONSTITUTION: A phenol is reacted with a reactive plasticizer. The resulting reaction mixture is reacted with a formaldehyde in the presence of 5W40 parts by wt. based on 100 parts by wt. of the reaction mixture of alcohol. The use of alcohol as a reaction solvent causes the uniform dissolution of a hydrophilic phenol and formaldehyde into a hydrophobic modified phenol, gives the modified phenol chances to approach the formaldehyde, to react with it, to stabilize the reaction product of the phenol and the formaldehyde with alcohol, and to make it difficult to precede further reaction, and prepares a transparent gel-containing resin free from a partial gel.
COPYRIGHT: (C)1980,JPO&Japio
JP16375978A 1978-12-22 1978-12-22 Preparation of modified phenol-formaldehyde resin Pending JPS5586808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16375978A JPS5586808A (en) 1978-12-22 1978-12-22 Preparation of modified phenol-formaldehyde resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16375978A JPS5586808A (en) 1978-12-22 1978-12-22 Preparation of modified phenol-formaldehyde resin

Publications (1)

Publication Number Publication Date
JPS5586808A true JPS5586808A (en) 1980-07-01

Family

ID=15780154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16375978A Pending JPS5586808A (en) 1978-12-22 1978-12-22 Preparation of modified phenol-formaldehyde resin

Country Status (1)

Country Link
JP (1) JPS5586808A (en)

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