FR2413453A1 - Cold-hardening binder based on amino-poly:ol(s) - for mixts. of moulding materials for mfr. of moulds and cores - Google Patents

Cold-hardening binder based on amino-poly:ol(s) - for mixts. of moulding materials for mfr. of moulds and cores

Info

Publication number
FR2413453A1
FR2413453A1 FR7836602A FR7836602A FR2413453A1 FR 2413453 A1 FR2413453 A1 FR 2413453A1 FR 7836602 A FR7836602 A FR 7836602A FR 7836602 A FR7836602 A FR 7836602A FR 2413453 A1 FR2413453 A1 FR 2413453A1
Authority
FR
France
Prior art keywords
cold
mixts
cores
amino
accelerator
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
FR7836602A
Other languages
French (fr)
Other versions
FR2413453B1 (en
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.)
Huettenes Albertus Chemische Werke GmbH
Original Assignee
Huettenes Albertus Chemische Werke GmbH
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 Huettenes Albertus Chemische Werke GmbH filed Critical Huettenes Albertus Chemische Werke GmbH
Publication of FR2413453A1 publication Critical patent/FR2413453A1/en
Application granted granted Critical
Publication of FR2413453B1 publication Critical patent/FR2413453B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3271—Hydroxyamines
    • C08G18/3278—Hydroxyamines containing at least three hydroxy groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
    • B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
    • B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
    • B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3271—Hydroxyamines
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/50—Polyethers having heteroatoms other than oxygen
    • C08G18/5021—Polyethers having heteroatoms other than oxygen having nitrogen

Abstract

A cold. hardenable binder for moulding material, based on: polyurethane, for mixts. of materials to be used to make moulds and cores, consits of a polyisocyanate with is not 2 NCO gps. and a polyol with is not 2 OH gps., the polyol being an aminopolyol which contains is not 1 tert-amino gp. actign as an accelerator. Cold hardenable moulding materials harden very slowly unless na unacceptably large amt. of accelerator is present. Materials contg. polyurethanes can be hardened by treatment for short times with tert-amine in gaseous state e.g. triethylamine, but this has deleterious effects on moulded prods. of large size. The present method gives much more rapid hardening without deleterious effects, the accelerator being one of the agents used in the system. No toxic or otherwise obnoxious effects are prod.
FR7836602A 1977-12-30 1978-12-21 Cold-hardening binder based on amino-poly:ol(s) - for mixts. of moulding materials for mfr. of moulds and cores Granted FR2413453A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772759258 DE2759258A1 (en) 1977-12-30 1977-12-30 Cold curing binder for molding compounds for the production of molds and cores

Publications (2)

Publication Number Publication Date
FR2413453A1 true FR2413453A1 (en) 1979-07-27
FR2413453B1 FR2413453B1 (en) 1983-03-18

Family

ID=6027935

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7836602A Granted FR2413453A1 (en) 1977-12-30 1978-12-21 Cold-hardening binder based on amino-poly:ol(s) - for mixts. of moulding materials for mfr. of moulds and cores

Country Status (13)

Country Link
JP (1) JPS5496426A (en)
AR (1) AR220366A1 (en)
AU (1) AU4293878A (en)
BE (1) BE865741A (en)
BR (1) BR7808389A (en)
CA (1) CA1134989A (en)
DE (1) DE2759258A1 (en)
ES (1) ES476072A1 (en)
FR (1) FR2413453A1 (en)
GR (1) GR66462B (en)
IT (1) IT1102406B (en)
NL (1) NL7812549A (en)
ZA (1) ZA783393B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4370463A (en) * 1978-06-14 1983-01-25 Ashland Oil, Inc. Process for no-bake foundry application utilizing polyurethanes based on amine polyols
DE2855391A1 (en) * 1978-12-21 1980-06-26 Woellner Werke COLD-HARDENING BINDING AGENT FOR PARTICULATE SOLIDS, IN PARTICULAR FOUNDRY SAND
DE2925733A1 (en) * 1979-06-23 1981-01-15 Huettenes Albertus POLYURETHANE-BASED BINDERS AND THE PRODUCTION THEREOF
JPS5736115A (en) * 1980-08-12 1982-02-26 Mitsui Tekisako Chem Kk Curing agent composition for polyurethane
US4448907A (en) * 1981-03-30 1984-05-15 Ashland Oil, Inc. Process for casting lightweight metals
DE3329452A1 (en) * 1983-08-16 1985-03-07 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING CELL-SHAPED POLYURETHANES, IF ANY

Also Published As

Publication number Publication date
GR66462B (en) 1981-03-23
CA1134989A (en) 1982-11-02
AR220366A1 (en) 1980-10-31
FR2413453B1 (en) 1983-03-18
DE2759258A1 (en) 1979-07-12
AU4293878A (en) 1979-07-05
IT1102406B (en) 1985-10-07
NL7812549A (en) 1979-07-03
JPS5496426A (en) 1979-07-30
IT7831040A0 (en) 1978-12-20
ZA783393B (en) 1979-06-27
BR7808389A (en) 1979-08-07
BE865741A (en) 1978-07-31
ES476072A1 (en) 1979-05-16

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Legal Events

Date Code Title Description
ST Notification of lapse