JPS54118492A - Preparation of casting resin - Google Patents

Preparation of casting resin

Info

Publication number
JPS54118492A
JPS54118492A JP2526178A JP2526178A JPS54118492A JP S54118492 A JPS54118492 A JP S54118492A JP 2526178 A JP2526178 A JP 2526178A JP 2526178 A JP2526178 A JP 2526178A JP S54118492 A JPS54118492 A JP S54118492A
Authority
JP
Japan
Prior art keywords
phenol
parts
aldehyde
urea derivative
casting resin
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
JP2526178A
Other languages
Japanese (ja)
Other versions
JPS5545091B2 (en
Inventor
Takeshi Sumi
Susumu Koarai
Takehiko Ishibashi
Shizuo Sakamoto
Munekazu Suzuki
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 JP2526178A priority Critical patent/JPS54118492A/en
Publication of JPS54118492A publication Critical patent/JPS54118492A/en
Publication of JPS5545091B2 publication Critical patent/JPS5545091B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Mold Materials And Core Materials (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

PURPOSE: To obtain a casting resin having improved performance with low unreacted phenol and aldehyde contents, by reacting a phenol with an aldehyde and furfuryl alcohol in the presence of an alkali calayst, and then with a urea derivative.
CONSTITUTION: One mole of a phenol is reacted with 1.5W25 moles, preferably 1.6W20 moles of an aldehyde in the presence of an alkali catalyst at a relative by low temperature of 50W70°C. 100 parts by wt. of the reaction product thus obtained is then reacted with 1W10 parts by wt., preferably 2W5 parts by wt. by a urea derivative or its mixture. Cresol or 2,2-bis(p-hydroxyphenyl) propane may be cited as the phenol. Urea modified with an amino compound or polyhydric alcohol may be cited as the urea derivative.
COPYRIGHT: (C)1979,JPO&Japio
JP2526178A 1978-03-06 1978-03-06 Preparation of casting resin Granted JPS54118492A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2526178A JPS54118492A (en) 1978-03-06 1978-03-06 Preparation of casting resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2526178A JPS54118492A (en) 1978-03-06 1978-03-06 Preparation of casting resin

Publications (2)

Publication Number Publication Date
JPS54118492A true JPS54118492A (en) 1979-09-13
JPS5545091B2 JPS5545091B2 (en) 1980-11-15

Family

ID=12161071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2526178A Granted JPS54118492A (en) 1978-03-06 1978-03-06 Preparation of casting resin

Country Status (1)

Country Link
JP (1) JPS54118492A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6499848B2 (en) * 2013-12-13 2019-04-10 花王株式会社 Binder composition for mold making

Also Published As

Publication number Publication date
JPS5545091B2 (en) 1980-11-15

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