FR2226425A1 - Injection moulding of polyurethane elastomers - using polyol, chain extender, polyisocyanate prepolymer and catalyst - Google Patents

Injection moulding of polyurethane elastomers - using polyol, chain extender, polyisocyanate prepolymer and catalyst

Info

Publication number
FR2226425A1
FR2226425A1 FR7412722A FR7412722A FR2226425A1 FR 2226425 A1 FR2226425 A1 FR 2226425A1 FR 7412722 A FR7412722 A FR 7412722A FR 7412722 A FR7412722 A FR 7412722A FR 2226425 A1 FR2226425 A1 FR 2226425A1
Authority
FR
France
Prior art keywords
mixt
catalyst
chain extender
injection moulding
polyurethane elastomers
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
FR7412722A
Other languages
French (fr)
Other versions
FR2226425B1 (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.)
Inter Polymer Research Corp
Original Assignee
Inter Polymer Research Corp
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 Inter Polymer Research Corp filed Critical Inter Polymer Research Corp
Publication of FR2226425A1 publication Critical patent/FR2226425A1/en
Application granted granted Critical
Publication of FR2226425B1 publication Critical patent/FR2226425B1/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
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
    • 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
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

Abstract

Injection moulding of liquid mixts. forming polyurethane elastomers is effected by (a) combining a soln. or dispersion contg. a polyether or polyester diol with terminal OH groups, a bifunctional org. chain extender chosen from diamines, amino alcohols, and glycols with a greater reactivity than alkylene glycols or sterically hindered amines, e.g. ethylenediamine and thiodiglycol, and a catalyst, with a prepolymer obtained by reacting a polyether or polyester diol with terminal OH groups, and an org. diisocyanate; this prepolymer having a free CNO:OH ratio of more than 2:1, and the polyurethane components being mixed at a rate sufficient to give a homogeneous liquid mixt. without appreciable polymsn. before injecting into the mould, (b) injecting the mixt. into the mould, (c) allowing the mixt. to polymerise to form a polyurethane elastomer moulding, and (d) demoulding the finished pdt. Gives high quality mouldings.
FR7412722A 1973-04-17 1974-04-11 Injection moulding of polyurethane elastomers - using polyol, chain extender, polyisocyanate prepolymer and catalyst Granted FR2226425A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35196873A 1973-04-17 1973-04-17

Publications (2)

Publication Number Publication Date
FR2226425A1 true FR2226425A1 (en) 1974-11-15
FR2226425B1 FR2226425B1 (en) 1977-06-24

Family

ID=23383220

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7412722A Granted FR2226425A1 (en) 1973-04-17 1974-04-11 Injection moulding of polyurethane elastomers - using polyol, chain extender, polyisocyanate prepolymer and catalyst

Country Status (12)

Country Link
JP (1) JPS5018564A (en)
AR (1) AR199144A1 (en)
AT (1) ATA281774A (en)
BE (1) BE813438A (en)
BR (1) BR7403019D0 (en)
CH (1) CH585235A5 (en)
DE (1) DE2418334A1 (en)
ES (1) ES425273A1 (en)
FR (1) FR2226425A1 (en)
IT (1) IT1011735B (en)
LU (1) LU69817A1 (en)
NL (1) NL7405196A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453870A1 (en) * 1979-04-11 1980-11-07 Ihara Chemical Ind Co PROCESS FOR PRODUCING POLYURETHANE ELASTOMER
EP0075130A2 (en) * 1981-09-18 1983-03-30 The Dow Chemical Company Improved reaction injection molding process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003232318A (en) * 2002-02-08 2003-08-22 Zen Kenchiku Sekkei Jimusho:Kk Fastener

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2453870A1 (en) * 1979-04-11 1980-11-07 Ihara Chemical Ind Co PROCESS FOR PRODUCING POLYURETHANE ELASTOMER
EP0075130A2 (en) * 1981-09-18 1983-03-30 The Dow Chemical Company Improved reaction injection molding process
EP0075130A3 (en) * 1981-09-18 1983-05-25 The Upjohn Company Improved reaction injection molding process

Also Published As

Publication number Publication date
ATA281774A (en) 1976-05-15
BE813438A (en) 1974-10-08
JPS5018564A (en) 1975-02-27
LU69817A1 (en) 1974-11-21
CH585235A5 (en) 1977-02-28
AR199144A1 (en) 1974-08-08
FR2226425B1 (en) 1977-06-24
NL7405196A (en) 1974-10-21
IT1011735B (en) 1977-02-10
DE2418334A1 (en) 1974-11-07
BR7403019D0 (en) 1974-12-03
ES425273A1 (en) 1976-06-01

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Legal Events

Date Code Title Description
ST Notification of lapse