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CA2165617A1 - Thermoplastic polyurethanes with improved melt flow - Google Patents

Thermoplastic polyurethanes with improved melt flow

Info

Publication number
CA2165617A1
CA2165617A1 CA002165617A CA2165617A CA2165617A1 CA 2165617 A1 CA2165617 A1 CA 2165617A1 CA 002165617 A CA002165617 A CA 002165617A CA 2165617 A CA2165617 A CA 2165617A CA 2165617 A1 CA2165617 A1 CA 2165617A1
Authority
CA
Canada
Prior art keywords
melt flow
thermoplastic polyurethanes
improved melt
groups
nco
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
CA002165617A
Other languages
French (fr)
Other versions
CA2165617C (en
Inventor
Heinz Pudleiner
Hans-Georg Hoppe
Joachim Wagner
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 CA2165617A1 publication Critical patent/CA2165617A1/en
Application granted granted Critical
Publication of CA2165617C publication Critical patent/CA2165617C/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
    • C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • 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
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3203—Polyhydroxy compounds
    • C08G18/3215—Polyhydroxy compounds containing aromatic groups or benzoquinone groups

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 thermoplastic polyurethane elastomer is disclosed obtained by reacting A) diisocyanates, B) polyhydroxy compounds and/or polyamines, with C) as chain extenders mixtures of C1) benzene substituted with at least two hydroxyalkyl, hydroxyalkoxy, aminoalkyl and/or aminoalkoxy groups and C2) an alkanediol with 4 to 44 C atoms. The reaction is further characterized in that the molar ratio C1:C2 = 60:40 to 95:5 and in that the equivalent ratio of NCO groups to the sum of the NCO-reactive groups is about 0.9 to 1.20
CA002165617A 1994-12-23 1995-12-19 Thermoplastic polyurethanes with improved melt flow Expired - Fee Related CA2165617C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4446332A DE4446332A1 (en) 1994-12-23 1994-12-23 Thermoplastic polyurethanes with improved melt flow
DEP4446332.4 1994-12-23

Publications (2)

Publication Number Publication Date
CA2165617A1 true CA2165617A1 (en) 1996-06-24
CA2165617C CA2165617C (en) 2009-02-10

Family

ID=6536937

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002165617A Expired - Fee Related CA2165617C (en) 1994-12-23 1995-12-19 Thermoplastic polyurethanes with improved melt flow

Country Status (3)

Country Link
EP (1) EP0718335B1 (en)
CA (1) CA2165617C (en)
DE (2) DE4446332A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1028132A1 (en) * 1999-02-09 2000-08-16 Basf Aktiengesellschaft Process for preparing thermoplastic polyurethanes
AR034894A1 (en) * 2001-07-24 2004-03-24 Radicispandex Corp IMPROVED SPANDEX COMPOSITIONS
US7202322B2 (en) * 2002-11-08 2007-04-10 Noveon, Inc. Heat resistant high moisture vapor transmission thermoplastic polyurethane

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1053720B (en) * 1957-07-06 1959-03-26 Bayer Ag Process for the production of polyurethane bristles
DE1165852B (en) * 1962-10-19 1964-03-19 Mobay Chemical Corp Process for the production of storable thermoplastic polyurethane masses that can be deformed solely by heat and pressure
JPS5330695A (en) * 1976-06-25 1978-03-23 Mitsui Toatsu Chem Inc Preparation of polyurethane elastomers
DE2817457A1 (en) * 1978-04-21 1979-10-31 Bayer Ag THERMOPLASTIC POLYURETHANE FOR PROCESSING IN EXTRUDERS AND / AND ON CALENDARS
US4376834A (en) * 1981-10-14 1983-03-15 The Upjohn Company Polyurethane prepared by reaction of an organic polyisocyanate, a chain extender and an isocyanate-reactive material of m.w. 500-20,000 characterized by the use of only 2-25 percent by weight of the latter material
DE3930523A1 (en) * 1989-09-13 1991-03-21 Bayer Ag POLYURETHANE ELASTOMERS WITH LOW HOLDER
TW264487B (en) * 1992-02-18 1995-12-01 Takeda Pharm Industry Co Ltd

Also Published As

Publication number Publication date
EP0718335B1 (en) 2002-07-17
DE59510282D1 (en) 2002-08-22
DE4446332A1 (en) 1996-06-27
CA2165617C (en) 2009-02-10
EP0718335A2 (en) 1996-06-26
EP0718335A3 (en) 1997-02-26

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed