GB1025970A - Improvements in and relating to polyurethane elastomers - Google Patents

Improvements in and relating to polyurethane elastomers

Info

Publication number
GB1025970A
GB1025970A GB2943864A GB2943864A GB1025970A GB 1025970 A GB1025970 A GB 1025970A GB 2943864 A GB2943864 A GB 2943864A GB 2943864 A GB2943864 A GB 2943864A GB 1025970 A GB1025970 A GB 1025970A
Authority
GB
United Kingdom
Prior art keywords
ethylene glycol
polyester
mols
acid number
diphenyl diisocyanate
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
GB2943864A
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.)
Goodrich Corp
Original Assignee
BF Goodrich 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 BF Goodrich Corp filed Critical BF Goodrich Corp
Publication of GB1025970A publication Critical patent/GB1025970A/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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • 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
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6633—Compounds of group C08G18/42
    • C08G18/6637—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/664—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203

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

A polyesterurethane elastomer having a permanent set not greater than 30%, comprises the reaction product of (A) one mol. of an essentially linear hydroxyl terminated polyester of a saturated aliphatic glycol having 4-10 C and the hydroxyl groups on its terminal carbon atoms and a dicarboxylic acid of formula <FORM:1025970/C3/1> where R is an alkylene radical containing 2-8 C or an anhydride thereof, the polyester having an average M.W. of 600-1200 and an acid number not greater than 7, and (B) from 1.5 to 3.0 mols. of a diphenyl diisocyanate having an -NCO group on each phenyl nucleus and (C) from 0.5-2.0 mols. of ethylene glycol the molar amount of said polyester and ethylene glycol being essentially equivalent to the molar amount of said diphenyl diisocyanate. The process may be performed under anhydrous conditions by mixing reactants (A), (B) and (C) at elevated temperature to form a homogeneous melt, and polymerizing the melt at 140-235 DEG C. for 3 minutes to 1 hour. In a typical Example (1) a mixture of poly (tetramethylene adipate) of MW 1030 and acid number 2.9 and ethylene glycol, the molar ratio being 1:1 was reacted with 2 moles of diphenylmethane-p,p1-diiso-cyanate.
GB2943864A 1963-07-15 1964-07-14 Improvements in and relating to polyurethane elastomers Expired GB1025970A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29493363A 1963-07-15 1963-07-15

Publications (1)

Publication Number Publication Date
GB1025970A true GB1025970A (en) 1966-04-14

Family

ID=23135542

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2943864A Expired GB1025970A (en) 1963-07-15 1964-07-14 Improvements in and relating to polyurethane elastomers

Country Status (1)

Country Link
GB (1) GB1025970A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256795A (en) 1974-11-05 1981-03-17 Polymark Corporation Heat transfers
US4320170A (en) 1980-12-08 1982-03-16 International Business Machines Corporation Polyurethane ribbon for non-impact printing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4256795A (en) 1974-11-05 1981-03-17 Polymark Corporation Heat transfers
US4320170A (en) 1980-12-08 1982-03-16 International Business Machines Corporation Polyurethane ribbon for non-impact printing

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