JPS5767619A - Resin for covering sand for castings - Google Patents

Resin for covering sand for castings

Info

Publication number
JPS5767619A
JPS5767619A JP14298280A JP14298280A JPS5767619A JP S5767619 A JPS5767619 A JP S5767619A JP 14298280 A JP14298280 A JP 14298280A JP 14298280 A JP14298280 A JP 14298280A JP S5767619 A JPS5767619 A JP S5767619A
Authority
JP
Japan
Prior art keywords
resin
castings
component
covering sand
formaldehyde
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
JP14298280A
Other languages
Japanese (ja)
Other versions
JPS6330922B2 (en
Inventor
Hideo Kunitomo
Keiichi Sunaga
Shinjiro Otsuka
Yamato Miyoshi
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 JP14298280A priority Critical patent/JPS5767619A/en
Publication of JPS5767619A publication Critical patent/JPS5767619A/en
Publication of JPS6330922B2 publication Critical patent/JPS6330922B2/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: A resin for covering sand for castings having high strength without causing blockings, etc., obtained by subjecting a phenol, formaldehyde, and a specific aromatic compound to polycondensation.
CONSTITUTION: (A) A phenol is reacted with (B) formaldehyde and (C) a compound[e.g., a by-product in the reaction of 2,2,4-trimethyl-4-(hydroxyphenyl) coumarone with isopropenylphenol, etc.]preferably in a molar ratio of component B/A=5/10W18/10 and in a ratio of 100pts.wt. component A to 10W30pts.wt. component C. The reaction is carried out under heating to give the desired resin.
COPYRIGHT: (C)1982,JPO&Japio
JP14298280A 1980-10-15 1980-10-15 Resin for covering sand for castings Granted JPS5767619A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14298280A JPS5767619A (en) 1980-10-15 1980-10-15 Resin for covering sand for castings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14298280A JPS5767619A (en) 1980-10-15 1980-10-15 Resin for covering sand for castings

Publications (2)

Publication Number Publication Date
JPS5767619A true JPS5767619A (en) 1982-04-24
JPS6330922B2 JPS6330922B2 (en) 1988-06-21

Family

ID=15328170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14298280A Granted JPS5767619A (en) 1980-10-15 1980-10-15 Resin for covering sand for castings

Country Status (1)

Country Link
JP (1) JPS5767619A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58189217A (en) * 1982-04-30 1983-11-04 Aisin Chem Co Ltd Novolak phenolic resin for use in resin-coated sand
WO2007010848A1 (en) * 2005-07-15 2007-01-25 Komatsu Ltd. Resin-coated sand for use in cast steel, casting mold made of the sand, steel casting casted using the casting mold

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250393A (en) * 1975-10-22 1977-04-22 Mitsui Toatsu Chem Inc Process for preparing phenolic resins
JPS52138593A (en) * 1976-05-14 1977-11-18 Toyo Kogyo Co Method of making phenol resin for shell mold
JPS559011A (en) * 1978-07-05 1980-01-22 Asahi Chem Ind Co Ltd Preparation of isobutylene from aqueous solution of tert- butanol
JPS5523122A (en) * 1978-08-07 1980-02-19 Mitsui Toatsu Chem Inc Preparation of phenolic resin
JPS5578049A (en) * 1978-12-09 1980-06-12 Mitsubishi Gas Chem Co Inc Resin composition for shell mold
JPS5647238A (en) * 1979-09-26 1981-04-28 Hitachi Chem Co Ltd Binder for self-hardening mold

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250393A (en) * 1975-10-22 1977-04-22 Mitsui Toatsu Chem Inc Process for preparing phenolic resins
JPS52138593A (en) * 1976-05-14 1977-11-18 Toyo Kogyo Co Method of making phenol resin for shell mold
JPS559011A (en) * 1978-07-05 1980-01-22 Asahi Chem Ind Co Ltd Preparation of isobutylene from aqueous solution of tert- butanol
JPS5523122A (en) * 1978-08-07 1980-02-19 Mitsui Toatsu Chem Inc Preparation of phenolic resin
JPS5578049A (en) * 1978-12-09 1980-06-12 Mitsubishi Gas Chem Co Inc Resin composition for shell mold
JPS5647238A (en) * 1979-09-26 1981-04-28 Hitachi Chem Co Ltd Binder for self-hardening mold

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58189217A (en) * 1982-04-30 1983-11-04 Aisin Chem Co Ltd Novolak phenolic resin for use in resin-coated sand
JPH0249327B2 (en) * 1982-04-30 1990-10-29 Aishin Kako Kk
WO2007010848A1 (en) * 2005-07-15 2007-01-25 Komatsu Ltd. Resin-coated sand for use in cast steel, casting mold made of the sand, steel casting casted using the casting mold
JPWO2007010848A1 (en) * 2005-07-15 2009-01-29 株式会社小松製作所 Resin coated sand for cast steel, mold made of the sand, and steel casting cast by the mold
JP4545192B2 (en) * 2005-07-15 2010-09-15 株式会社小松製作所 Resin coated sand for cast steel, mold made of the sand, and steel casting cast by the mold

Also Published As

Publication number Publication date
JPS6330922B2 (en) 1988-06-21

Similar Documents

Publication Publication Date Title
DE3360081D1 (en) Foundry moulds and cores
JPS5767619A (en) Resin for covering sand for castings
JPS5250393A (en) Process for preparing phenolic resins
JPS52138595A (en) Preparation of modified phenolic resins
JPS5759925A (en) Production of phenolic resin for shell mold process
JPS5578049A (en) Resin composition for shell mold
JPS536397A (en) Preparation of resol-type phenolic resins for decorative laminates
JPS5537239A (en) Manufacturing method of resin-bonded diamond wheel
JPS5731438A (en) Mold making method
JPS54129087A (en) Production of phenolic resin
JPS5761015A (en) Production of phenol resin
JPS533496A (en) Preparation of phenolic resin
JPS52112696A (en) Preparation of fibers of films of phenolic resins
JPS5538817A (en) Production of phenolic resin
JPS5573721A (en) Preparation of oil-modified phenolic resin
JPS5566947A (en) Self-curing solid resol resin composition and its preparation
JPS56166254A (en) Phenolic resin composition having improved coating property
JPS5395473A (en) Disc brake pad
JPS54159456A (en) Modified phenolic varnish and preparation of phenolic resin varnish
JPS5538818A (en) Production of modified phenolic resin
JPS5774376A (en) Adhesive wood and bonding method of wood
JPS5759926A (en) Production of resin for shell mold process
JPS52138594A (en) Preparation of modified phenolic resins
JPS5388091A (en) Preparation of phenolic resin
JPS5686923A (en) Preparation of modified phenolic resin