JPS52154892A - Preparation of phenol-formaldehyde resin for shell molding - Google Patents

Preparation of phenol-formaldehyde resin for shell molding

Info

Publication number
JPS52154892A
JPS52154892A JP7181476A JP7181476A JPS52154892A JP S52154892 A JPS52154892 A JP S52154892A JP 7181476 A JP7181476 A JP 7181476A JP 7181476 A JP7181476 A JP 7181476A JP S52154892 A JPS52154892 A JP S52154892A
Authority
JP
Japan
Prior art keywords
phenol
formaldehyde resin
preparation
shell molding
molding
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
JP7181476A
Other languages
Japanese (ja)
Inventor
Shizuo Sakamoto
Susumu Koarai
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 JP7181476A priority Critical patent/JPS52154892A/en
Publication of JPS52154892A publication Critical patent/JPS52154892A/en
Pending legal-status Critical Current

Links

Landscapes

  • Phenolic Resins Or Amino Resins (AREA)

Abstract

PURPOSE: To prepare a phenol-formaldehyde resin for shell molding hving higher strength by the copolycondensation of a difunctional phenol.
COPYRIGHT: (C)1977,JPO&Japio
JP7181476A 1976-06-18 1976-06-18 Preparation of phenol-formaldehyde resin for shell molding Pending JPS52154892A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7181476A JPS52154892A (en) 1976-06-18 1976-06-18 Preparation of phenol-formaldehyde resin for shell molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7181476A JPS52154892A (en) 1976-06-18 1976-06-18 Preparation of phenol-formaldehyde resin for shell molding

Publications (1)

Publication Number Publication Date
JPS52154892A true JPS52154892A (en) 1977-12-22

Family

ID=13471395

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7181476A Pending JPS52154892A (en) 1976-06-18 1976-06-18 Preparation of phenol-formaldehyde resin for shell molding

Country Status (1)

Country Link
JP (1) JPS52154892A (en)

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