JPS577347A - Resin composition for shell mold - Google Patents

Resin composition for shell mold

Info

Publication number
JPS577347A
JPS577347A JP7889880A JP7889880A JPS577347A JP S577347 A JPS577347 A JP S577347A JP 7889880 A JP7889880 A JP 7889880A JP 7889880 A JP7889880 A JP 7889880A JP S577347 A JPS577347 A JP S577347A
Authority
JP
Japan
Prior art keywords
bisphenol
novolak type
resin
resin composition
byproduct
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.)
Granted
Application number
JP7889880A
Other languages
Japanese (ja)
Other versions
JPS6141655B2 (en
Inventor
Yoshiaki Shimizu
Toshio Itakura
Yoshio Morimoto
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Priority to JP7889880A priority Critical patent/JPS577347A/en
Publication of JPS577347A publication Critical patent/JPS577347A/en
Publication of JPS6141655B2 publication Critical patent/JPS6141655B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Mold Materials And Core Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

PURPOSE:To improve collapsing properties after pouring of a titled composition by using a novolak type resin which is obtained from the high polymer phenolic compound obtained by treating the byproduct in the production of bisphenol A and phenols. CONSTITUTION:The byproduct contg. bisphenol A obtained in the production of bisphenol A is treated at high temp. above 150 deg.C in the presence of an alkaline catalyst, whereby it is cleaved and low b.p. components are distilled and 10- 100pts.wt. high polymer phenolic compound remaining after this and 90-0 weights phenols are allowed to condense with formaldehyde in the presence of an acidic catalyst, whereby a novolak type phenolic resin is formed. A suitable amount of an aromatic carboxylic acid or its anhydride is compounded as a hardening accelerator to this novolak type phenolic resin, whereby the resin composition for shell molds is obtained.
JP7889880A 1980-06-13 1980-06-13 Resin composition for shell mold Granted JPS577347A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7889880A JPS577347A (en) 1980-06-13 1980-06-13 Resin composition for shell mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7889880A JPS577347A (en) 1980-06-13 1980-06-13 Resin composition for shell mold

Publications (2)

Publication Number Publication Date
JPS577347A true JPS577347A (en) 1982-01-14
JPS6141655B2 JPS6141655B2 (en) 1986-09-17

Family

ID=13674633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7889880A Granted JPS577347A (en) 1980-06-13 1980-06-13 Resin composition for shell mold

Country Status (1)

Country Link
JP (1) JPS577347A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103237614A (en) * 2010-12-27 2013-08-07 花王株式会社 Binder composition for mold molding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103237614A (en) * 2010-12-27 2013-08-07 花王株式会社 Binder composition for mold molding

Also Published As

Publication number Publication date
JPS6141655B2 (en) 1986-09-17

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