JPS5764439A - Binder composition for molding sand - Google Patents

Binder composition for molding sand

Info

Publication number
JPS5764439A
JPS5764439A JP9242381A JP9242381A JPS5764439A JP S5764439 A JPS5764439 A JP S5764439A JP 9242381 A JP9242381 A JP 9242381A JP 9242381 A JP9242381 A JP 9242381A JP S5764439 A JPS5764439 A JP S5764439A
Authority
JP
Japan
Prior art keywords
bisphenols
org
cyclic ketones
molding sand
bisphenol
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
JP9242381A
Other languages
Japanese (ja)
Other versions
JPS5846377B2 (en
Inventor
Takeshi Tobinaga
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.)
Mitsubishi Petrochemical Co Ltd
Original Assignee
Mitsubishi Petrochemical 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 Mitsubishi Petrochemical Co Ltd filed Critical Mitsubishi Petrochemical Co Ltd
Priority to JP9242381A priority Critical patent/JPS5846377B2/en
Priority to GB8129764A priority patent/GB2088886B/en
Priority to US06/308,236 priority patent/US4352914A/en
Priority to DE19813139484 priority patent/DE3139484A1/en
Priority to CA000387393A priority patent/CA1176785A/en
Priority to FR8118796A priority patent/FR2491363B1/en
Publication of JPS5764439A publication Critical patent/JPS5764439A/en
Publication of JPS5846377B2 publication Critical patent/JPS5846377B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Mold Materials And Core Materials (AREA)

Abstract

PURPOSE: To obtain a composition of quick curing property, and high strength, heat resistance and collapsing property by contg. org. polyisocyanate compounds and polyol compounds prepd. by causing formaldehyde to react wit a mixture of bisphenols and specific cyclic ketones.
CONSTITUTION: For example, diphenylmethane diisocyanate and the like are used for org. polyisocyanate compounds. For example, bisphenol A and the like are used for bisphenol, and those of which the carbon atom adjacent to a carbonyl group has at least two hydrogen atoms, for example, cyclopentane and the like are used for cyclic ketones. The molar ratio of bisphenols and cyclic ketones is about 10/1W1/5, and formaldehyde is about ≥0.3mol ratio with respect to bisphenols. The amt. of compounding of the org. polyisocyanate compound with the polyol compound is about 0.3W3 equiv. an isocyanate group per equiv. of a hydroxyl group, and this composition is compounded at about 0.5W5pts.wt. basing on 100pts.wt. molding sand.
COPYRIGHT: (C)1982,JPO&Japio
JP9242381A 1980-10-06 1981-06-16 Binder composition for foundry sand Expired JPS5846377B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP9242381A JPS5846377B2 (en) 1981-06-16 1981-06-16 Binder composition for foundry sand
GB8129764A GB2088886B (en) 1980-10-06 1981-10-02 Binder composition for foundry molds or cores
US06/308,236 US4352914A (en) 1980-10-06 1981-10-02 Binder composition for foundry sand molds and cores
DE19813139484 DE3139484A1 (en) 1980-10-06 1981-10-03 BINDING COMPOSITION FOR FOUNDRY SAND AND CORE SAND
CA000387393A CA1176785A (en) 1980-10-06 1981-10-06 Binder composition for foundry sand molds and cores
FR8118796A FR2491363B1 (en) 1980-10-06 1981-10-06 BINDER COMPOSITION FOR MOLDS AND FOUNDRY CORES IN SAND

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9242381A JPS5846377B2 (en) 1981-06-16 1981-06-16 Binder composition for foundry sand

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP13953180A Division JPS5764436A (en) 1980-10-06 1980-10-06 Binder composition for molding sand

Publications (2)

Publication Number Publication Date
JPS5764439A true JPS5764439A (en) 1982-04-19
JPS5846377B2 JPS5846377B2 (en) 1983-10-15

Family

ID=14054008

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9242381A Expired JPS5846377B2 (en) 1980-10-06 1981-06-16 Binder composition for foundry sand

Country Status (1)

Country Link
JP (1) JPS5846377B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59113953A (en) * 1982-12-21 1984-06-30 Dainippon Ink & Chem Inc Molding sand for shell mold

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60195081U (en) * 1984-06-07 1985-12-26 株式会社ソフイア Pachinko machine operation dial
JPS6270570U (en) * 1985-10-21 1987-05-06
JPS6292870U (en) * 1985-12-03 1987-06-13
JPS6297684U (en) * 1985-12-09 1987-06-22

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59113953A (en) * 1982-12-21 1984-06-30 Dainippon Ink & Chem Inc Molding sand for shell mold
JPH0428456B2 (en) * 1982-12-21 1992-05-14 Dainippon Ink & Chemicals

Also Published As

Publication number Publication date
JPS5846377B2 (en) 1983-10-15

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