ES452615A1 - Procedimiento para la obtencion de elastomeros de poliureta-nos. - Google Patents

Procedimiento para la obtencion de elastomeros de poliureta-nos.

Info

Publication number
ES452615A1
ES452615A1 ES452615A ES452615A ES452615A1 ES 452615 A1 ES452615 A1 ES 452615A1 ES 452615 A ES452615 A ES 452615A ES 452615 A ES452615 A ES 452615A ES 452615 A1 ES452615 A1 ES 452615A1
Authority
ES
Spain
Prior art keywords
polyurethane elastomers
resistant polyurethane
softening range
adduct
preparing heat
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
ES452615A
Other languages
English (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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of ES452615A1 publication Critical patent/ES452615A1/es
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
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
    • 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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
    • 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
    • C08G2190/00—Compositions for sealing or packing joints
    • 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
    • C08G2250/00—Compositions for preparing crystalline polymers

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

Procedimiento para la obtención de elastómeros de poliuretanos resistentes al calor a partir de compuestos polihidroxilo preponderantemente lineales y de elevado peso molecular, poliisocianatos, agentes alargadores de cadena y en caso dado catalizadores y adictivos, caracterizado porque se hace reaccionar el compuesto de polihidroxilo preponderantemente lineal y de elevado peso molecular con una cantidad tal de un diisociantao alifático, cicloalifático, alifático-aromático y estéricamente impedido o 4,4''-difenil-metano-diisocianato que la relación de los grupos OH:NCO equivalga a 1:1,10 hasta 2 y se transforma, a continuación, el poliaducto obtenido que presenta grupos isocianato en la posición final con un diisocianato aromático de composición simétrica y un diol como agente alargador de cadena, con la condición de que la relación del número de grupos isocianato al número total de todos los átomos de hidrógeno reaccionables con isocianato esté comprendida entre 1,2 y 0,9:1.
ES452615A 1975-10-25 1976-10-22 Procedimiento para la obtencion de elastomeros de poliureta-nos. Expired ES452615A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752547866 DE2547866A1 (de) 1975-10-25 1975-10-25 Waermebestaendige polyurethanelastomere

Publications (1)

Publication Number Publication Date
ES452615A1 true ES452615A1 (es) 1978-01-01

Family

ID=5960099

Family Applications (1)

Application Number Title Priority Date Filing Date
ES452615A Expired ES452615A1 (es) 1975-10-25 1976-10-22 Procedimiento para la obtencion de elastomeros de poliureta-nos.

Country Status (6)

Country Link
US (1) US4098773A (es)
DE (1) DE2547866A1 (es)
ES (1) ES452615A1 (es)
FR (1) FR2328726A1 (es)
GB (1) GB1558453A (es)
IT (1) IT1069977B (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4254069A (en) * 1979-04-30 1981-03-03 Texaco Development Corp. Heat stable reaction injection molded elastomers
GB2048154B (en) * 1979-04-30 1982-12-08 Texaco Development Corp Reaction injection moulded polyurethane elastomers
US4272618A (en) * 1979-04-30 1981-06-09 Texaco Development Corp. Heat stable reaction injection molded elastomers
ATE44964T1 (de) * 1982-12-17 1989-08-15 American Cyanamid Co Polyurethan-elastomere aus gehinderten aliphatischen diisocyanaten.
DE3306559A1 (de) * 1983-02-25 1984-08-30 Henkel KGaA, 4000 Düsseldorf Verfahren zur herstellung von polyurethan-praepolymeren mit endstaendigen isocyanatgruppen und vermindertem restmonomergehalt
US4546114A (en) * 1984-10-25 1985-10-08 The Upjohn Company Process for the preparation of polyurea elastomers
DE3502265A1 (de) * 1985-01-24 1986-07-24 Bayer Ag, 5090 Leverkusen Urethangruppen aufweisende diisocyanate, ein verfahren zu ihrer herstellung und ihre verwendung als bindemittel bzw. bindemittelkomponente in polyurethanlacken
US4873308A (en) * 1988-09-30 1989-10-10 Medtronic, Inc. Biostable, segmented aliphatic polyurethanes and process therefor
US5093379A (en) * 1990-04-09 1992-03-03 Polymer Dynamics Technology, Inc. Heat stable polyurethane foams
US5646230A (en) * 1995-12-21 1997-07-08 Bayer Corporation Isocyanate-terminated prepolymers, a process of producing polyurethane/polyurea elastomers therefrom, and the resultant elastomers
US6111052A (en) * 1997-04-30 2000-08-29 Medtronic, Inc. Polyurethane and polyurea biomaterials for use in medical devices
US5817734A (en) * 1997-11-03 1998-10-06 Bayer Corporation Prepolymers with low TDI content
US5925781A (en) * 1997-11-03 1999-07-20 Bayer Corporation Prepolymers with low monomeric TDI content
US20060178497A1 (en) * 2005-02-04 2006-08-10 Clemson University And Thordon Bearings, Inc. Implantable biomedical devices including biocompatible polyurethanes
US20060223967A1 (en) * 2005-03-29 2006-10-05 Conner Mark D Novel polyurea isocyanates
DE602005020260D1 (de) * 2005-06-02 2010-05-12 Dow Global Technologies Inc Schlagzähmodifizierter Strukturklebstoff auf Epoxid Basis
KR100842218B1 (ko) 2007-12-11 2008-06-30 주원테크 주식회사 접착제용 및 보호층용 열가소성폴리우레탄 수지와 이를이용하여 제조된 적층필름 및 그 제조방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1052041A (es) *
DE831772C (de) * 1952-11-18 1952-02-18 Bayer Ag Verfahren zur Herstellung hochmolekularer vernetzter Kunststoffe
US2871218A (en) * 1955-12-01 1959-01-27 Goodrich Co B F Simulated vulcanizates of polyurethane elastomers
US3070427A (en) * 1958-07-23 1962-12-25 Gen Motors Corp Polymerization apparatus
FR1518558A (fr) * 1959-04-10 1968-03-29 Bayer Ag Procédé de préparation de matières plastiques élastomères de polyuréthane et articles moulés en polyuréthane
FR1328121A (fr) * 1961-07-18 1963-05-24 United Elastic Corp Procédé perfectionné de préparation de polyuréthanes extrudables à l'état fondu en fils élastiques
DE1570673A1 (de) * 1964-06-16 1970-01-22 Goodrich Co B F Verfahren zur Herstellung von thermoplastischen Polyesterurethanelastomeren
US3457234A (en) * 1966-11-18 1969-07-22 Uniroyal Inc Polyurethane elastoplastic resistant to high speed flexural impact and gear made therefrom
FR1566513A (es) * 1968-03-12 1969-05-09
US3963656A (en) * 1972-10-03 1976-06-15 Bayer Aktiengesellschaft Thermoplastic polyurethanes and a two-stage process for their preparation

Also Published As

Publication number Publication date
FR2328726B1 (es) 1981-12-18
FR2328726A1 (fr) 1977-05-20
DE2547866A1 (de) 1977-05-05
GB1558453A (en) 1980-01-03
IT1069977B (it) 1985-03-25
US4098773A (en) 1978-07-04

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