JPS5791840A - Self-hardening bonding material composite for casting - Google Patents

Self-hardening bonding material composite for casting

Info

Publication number
JPS5791840A
JPS5791840A JP16829280A JP16829280A JPS5791840A JP S5791840 A JPS5791840 A JP S5791840A JP 16829280 A JP16829280 A JP 16829280A JP 16829280 A JP16829280 A JP 16829280A JP S5791840 A JPS5791840 A JP S5791840A
Authority
JP
Japan
Prior art keywords
content percentage
self
hardening
composition
bonding material
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
JP16829280A
Other languages
Japanese (ja)
Other versions
JPS5846375B2 (en
Inventor
Tadayoshi Matsuura
Shinjiro Otsuka
Tsuneo Saito
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.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals 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 Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Priority to JP16829280A priority Critical patent/JPS5846375B2/en
Publication of JPS5791840A publication Critical patent/JPS5791840A/en
Publication of JPS5846375B2 publication Critical patent/JPS5846375B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Mold Materials And Core Materials (AREA)

Abstract

PURPOSE: To obtain a bonding material composition which is low in odor and high in strength, by controlling the content percentage of a compound of a high polymer weight area of ≥3 nuclides, within a specific range, and narrowing the molecular weight distribution.
CONSTITUTION: Phenol and formaldehyde and made to react in the mol ratio of 1:1W1.65 by using an alkali metal and/or an alkaline earth metal as a reaction catalyst, and when the content percentage of a high polymer compound of ≥3 nuclides has reached 4W6wt%, or when the content percentage of a 1-nuclide composition has reached 65W80wt%, the reaction is halted. Subsequently, said composition is neutralized by an organic acid or an inorganic acid, and after that, when the neutralized salt is filtered, it is possible to obtain a self-hardening bonding agent for a thermosetting phenolie resin compound casting which has 60W75wt% nonvolatile portion and ≤150CPS viscosity, and is suitable for use by hardening it at a normal temperature.
COPYRIGHT: (C)1982,JPO&Japio
JP16829280A 1980-11-29 1980-11-29 Self-hardening binder composition for castings Expired JPS5846375B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16829280A JPS5846375B2 (en) 1980-11-29 1980-11-29 Self-hardening binder composition for castings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16829280A JPS5846375B2 (en) 1980-11-29 1980-11-29 Self-hardening binder composition for castings

Publications (2)

Publication Number Publication Date
JPS5791840A true JPS5791840A (en) 1982-06-08
JPS5846375B2 JPS5846375B2 (en) 1983-10-15

Family

ID=15865300

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16829280A Expired JPS5846375B2 (en) 1980-11-29 1980-11-29 Self-hardening binder composition for castings

Country Status (1)

Country Link
JP (1) JPS5846375B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60261639A (en) * 1984-06-07 1985-12-24 Dainippon Ink & Chem Inc Self-curing binder composition for casting mold

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62145682U (en) * 1986-03-05 1987-09-14

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60261639A (en) * 1984-06-07 1985-12-24 Dainippon Ink & Chem Inc Self-curing binder composition for casting mold
JPH0148103B2 (en) * 1984-06-07 1989-10-18 Dainippon Ink & Chemicals

Also Published As

Publication number Publication date
JPS5846375B2 (en) 1983-10-15

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