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CA2258617A1 - Polyurethane/urea heat-cured and moisture-cured elastomers with improved physical properties - Google Patents

Polyurethane/urea heat-cured and moisture-cured elastomers with improved physical properties

Info

Publication number
CA2258617A1
CA2258617A1 CA002258617A CA2258617A CA2258617A1 CA 2258617 A1 CA2258617 A1 CA 2258617A1 CA 002258617 A CA002258617 A CA 002258617A CA 2258617 A CA2258617 A CA 2258617A CA 2258617 A1 CA2258617 A1 CA 2258617A1
Authority
CA
Canada
Prior art keywords
cured
elastomers
physical properties
improved physical
moisture
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
CA002258617A
Other languages
French (fr)
Other versions
CA2258617C (en
Inventor
Nigel Barksby
Bruce Lawrey
Susan Clift
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 Antwerpen NV
Original Assignee
Individual
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
Priority claimed from US08/680,734 external-priority patent/US5696221A/en
Application filed by Individual filed Critical Individual
Publication of CA2258617A1 publication Critical patent/CA2258617A1/en
Application granted granted Critical
Publication of CA2258617C publication Critical patent/CA2258617C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C08G18/65—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
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • 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
    • 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
    • C08G18/4866—Polyethers having a low unsaturation value

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

Elastomers with improved physical properties, particularly hardness and rebound, may be prepared by the diamine chain extension or moisture cure of low isocynate group content, toluene diisocyanate-based prepolymers prepared from a polyol component comprising a high molecular weight, low unsaturation polyoxypropylene diol and a low molecular weight diol. The elastomers are useful for applications such as rollers and other applications where hardness and rebound are important.
CA002258617A 1996-07-15 1997-07-12 Polyurethane/urea heat-cured and moisture-cured elastomers with improved physical properties Expired - Fee Related CA2258617C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/680,734 1996-07-15
US08/680,734 US5696221A (en) 1996-07-15 1996-07-15 Polyurethane/urea heat-cured and moisture-cured elastomers with improved physical properties
PCT/EP1997/003736 WO1998002475A1 (en) 1996-07-15 1997-07-12 Polyurethane/urea heat-cured and moisture-cured elastomers with improved physical properties

Publications (2)

Publication Number Publication Date
CA2258617A1 true CA2258617A1 (en) 1998-01-22
CA2258617C CA2258617C (en) 2006-10-31

Family

ID=37395839

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002258617A Expired - Fee Related CA2258617C (en) 1996-07-15 1997-07-12 Polyurethane/urea heat-cured and moisture-cured elastomers with improved physical properties

Country Status (1)

Country Link
CA (1) CA2258617C (en)

Also Published As

Publication number Publication date
CA2258617C (en) 2006-10-31

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed