JPS5657815A - Preparation of resorcinol co-condensation resin - Google Patents

Preparation of resorcinol co-condensation resin

Info

Publication number
JPS5657815A
JPS5657815A JP13477979A JP13477979A JPS5657815A JP S5657815 A JPS5657815 A JP S5657815A JP 13477979 A JP13477979 A JP 13477979A JP 13477979 A JP13477979 A JP 13477979A JP S5657815 A JPS5657815 A JP S5657815A
Authority
JP
Japan
Prior art keywords
resorcinol
molar ratio
reacted
resin
preparation
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
JP13477979A
Other languages
Japanese (ja)
Inventor
Yasuhisa Saito
Yasuteru Maeda
Hiroshi Horiuchi
Shinichiro Kitayama
Makoto Ando
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP13477979A priority Critical patent/JPS5657815A/en
Publication of JPS5657815A publication Critical patent/JPS5657815A/en
Pending legal-status Critical Current

Links

Landscapes

  • Phenolic Resins Or Amino Resins (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

PURPOSE: To obtain a resin having improved water-solubility in neutral or weakly acidic range, improved electric properties and durability, by reacting a phenol with formaldehyde in the presence of an agent for sulfomethylation, followed by reacting the reaction product with resorcinol.
CONSTITUTION: (A) A phenol is reacted with (B) formaldehyde in the presence of (C) an agent for sulfomethylation (e.g., sodium sulfite, etc.), for example, 37wt% formalin as the ingredient B is reacted until the viscosity of the resin solution reaches 0.1W3 poise (preferably 0.3W2 poise), to give a reaction product, which is reacted with (D) resorcinol to prepare the desired resin. In the reaction, a molar ratio of the ingredient A to D is 0.3/0.7W0.95/0.05, a molar ratio of the ingredients (A+D) to B is 1/0.6W1/1.5 (preferably 1/0.75W1/1.2), and a molar ratio of C to B is 0.02/1W0.15/1.
COPYRIGHT: (C)1981,JPO&Japio
JP13477979A 1979-10-18 1979-10-18 Preparation of resorcinol co-condensation resin Pending JPS5657815A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13477979A JPS5657815A (en) 1979-10-18 1979-10-18 Preparation of resorcinol co-condensation resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13477979A JPS5657815A (en) 1979-10-18 1979-10-18 Preparation of resorcinol co-condensation resin

Publications (1)

Publication Number Publication Date
JPS5657815A true JPS5657815A (en) 1981-05-20

Family

ID=15136354

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13477979A Pending JPS5657815A (en) 1979-10-18 1979-10-18 Preparation of resorcinol co-condensation resin

Country Status (1)

Country Link
JP (1) JPS5657815A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0200479A2 (en) * 1985-04-24 1986-11-05 Indspec Chemical Corporation Phenolic resins
CN109912757A (en) * 2019-03-14 2019-06-21 广汉恒奕石油技术开发有限责任公司 A kind of production method of resin fluid loss additive

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0200479A2 (en) * 1985-04-24 1986-11-05 Indspec Chemical Corporation Phenolic resins
CN109912757A (en) * 2019-03-14 2019-06-21 广汉恒奕石油技术开发有限责任公司 A kind of production method of resin fluid loss additive

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