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GB1069558A - Production of polyurethanes - Google Patents

Production of polyurethanes

Info

Publication number
GB1069558A
GB1069558A GB4996665A GB4996665A GB1069558A GB 1069558 A GB1069558 A GB 1069558A GB 4996665 A GB4996665 A GB 4996665A GB 4996665 A GB4996665 A GB 4996665A GB 1069558 A GB1069558 A GB 1069558A
Authority
GB
United Kingdom
Prior art keywords
polyurethanes
groups
organic polyisocyanate
production
excess
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.)
Expired
Application number
GB4996665A
Inventor
Wolfgang Klebert
Wilhelm Kallert
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB1069558A publication Critical patent/GB1069558A/en
Expired 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
    • C08G18/08—Processes
    • C08G18/16—Catalysts
    • C08G18/22—Catalysts containing metal compounds
    • C08G18/26—Catalysts containing metal compounds of lead
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Cross-linked polyurethanes are prepared from (a) polyurethanes containing free -OH and/or -NH2 groups which are stable on storage and which are obtained from a polyhydroxy compound of M.W. above 1000 by reaction with an organic polyisocyanate and a chain lengthening agent of M.W, below 500, (b) an excess of further organic polyisocyanate calculated on the -OH and/or -NH2 groups in (a) and (c), and (c) a further aliphatic polyol having a M.W. below 500 and comprising a 5 or 6 membered cyclic imide group of one of the following formulae <FORM:1069558/C3/1> <FORM:1069558/C3/2> <FORM:1069558/C3/3>
GB4996665A 1964-11-26 1965-11-24 Production of polyurethanes Expired GB1069558A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF44540A DE1229287B (en) 1964-11-26 1964-11-26 Process for the production of high molecular weight, crosslinked plastics containing urethane groups

Publications (1)

Publication Number Publication Date
GB1069558A true GB1069558A (en) 1967-05-17

Family

ID=7100066

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4996665A Expired GB1069558A (en) 1964-11-26 1965-11-24 Production of polyurethanes

Country Status (3)

Country Link
DE (1) DE1229287B (en)
FR (1) FR1519523A (en)
GB (1) GB1069558A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1450606A (en) * 1965-06-21 1966-06-24 Rhone Poulenc Sa polyurethane elastomers comprising pyromellimide groups and process for obtaining them

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1071949B (en) * 1958-10-01 1959-12-24 Farbenfabriken Bayer Aktiengesellschaft, Leverkusen-Bayerwerk Process for the production of high molecular weight, crosslinked plastics containing urethane groups

Also Published As

Publication number Publication date
DE1229287B (en) 1966-11-24
FR1519523A (en) 1968-04-05

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