ES2150927T3 - Procedimiento para preparar espumas flexibles de poliuretano. - Google Patents

Procedimiento para preparar espumas flexibles de poliuretano.

Info

Publication number
ES2150927T3
ES2150927T3 ES93111745T ES93111745T ES2150927T3 ES 2150927 T3 ES2150927 T3 ES 2150927T3 ES 93111745 T ES93111745 T ES 93111745T ES 93111745 T ES93111745 T ES 93111745T ES 2150927 T3 ES2150927 T3 ES 2150927T3
Authority
ES
Spain
Prior art keywords
polyisocyanate
polyurethane foams
flexible polyurethane
reaction
strength
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 - Lifetime
Application number
ES93111745T
Other languages
English (en)
Inventor
A Leslie Peterson
Richard A Riccitelli
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
Bayer Corp
Original Assignee
Bayer AG
Bayer 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 Bayer AG, Bayer Corp filed Critical Bayer AG
Application granted granted Critical
Publication of ES2150927T3 publication Critical patent/ES2150927T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4833—Polyethers containing oxyethylene units
    • C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
    • C08G18/4845—Polyethers containing oxyethylene units and other oxyalkylene units containing oxypropylene or higher oxyalkylene end groups
    • 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
    • C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
    • C08G18/7621—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0008—Foam properties flexible
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • C08G2110/005—< 50kg/m3
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent

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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

DE ACUERDO CON LA INVENCION SE PRESENTA UN PROCESO MEJORADO PARA LA PRODUCCION DE ESPUMAS DE POLIURETANO FLEXIBLES MEDIANTE LA REACCION DE UN POLIOL Y AGUA CON POLIISOCIANATO EN LA PRESENCIA DE UN AGENTE ESPUMANTE, LA MEJORA RECAE EN EL HECHO DE QUE EL POLIISOCIANATO COMPRENDE DIISOCIANATO DE TOLUENO QUE TIENE UNA PROPORCION DE 2,4-ISOMERO CON RESPECTO AL 2, 6-ISOMERO QUE ES MAYOR DE 80:20. EN LA PRESENTE CONFORMACION, LA INVENCION COMPRENDE UN PROCESO MEJORADO PARA INCREMENTAR LA BLANDURA DE LA ESPUMA FLEXIBLE MEDIANTE LA REACCION DE UN POLIOL TERMINADO EN HIDROXIL SECUNDARIO CON UN POLIISOCIANATO EN LA PRESENCIA DE UN AGENTE ESPUMANTE, LA MEJORA COMPRENDE UN AGENTE ESPUMANTE QUE CONSTA ESENCIALMENTE DE DIOXIDO DE CARBONO DERIVADO DE LA REACCION DE POLIISOCIANATO-AGUA, UNA CANTIDAD SUBSTANCIALMENTE BAJA DE UN AGENTE ESPUMANTE AUXILIAR, Y EL POLIISOCIANATO COMPRENDE DIISOCIANATO DE TOLUENO QUE TIENE UNA PROPORCION DE 2,4-ISOMERO CON RESPECTO AL 2,6-ISOMERO QUE ES MAYOR A 80:20. MEDIANTE LAINVENCION SE HA DESCUBIERTO QUE PUEDEN OBTENERSE ESPUMAS DE POLIURETANO FLEXIBLES QUE TIENEN LAS SORPRENDENTES PROPIEDADES DE ENTRE UN 15 Y UN 23% DE BLANDURA, UNA RESISTENCIA AL CORTE INCREMENTADA, UNA FUERZA TENSIONAL INCREMENTADA Y UN ALARGAMIENTO PORCENTUAL INCREMENTADO, Y PRESENTAN MUY POCOS CAMBIOS EN LAS PROPIEDADES DE COMPRESION.
ES93111745T 1992-08-04 1993-07-22 Procedimiento para preparar espumas flexibles de poliuretano. Expired - Lifetime ES2150927T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/925,344 US5391586A (en) 1992-08-04 1992-08-04 Process for preparing flexible polyurethane foams and foams thus obtained

Publications (1)

Publication Number Publication Date
ES2150927T3 true ES2150927T3 (es) 2000-12-16

Family

ID=25451589

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93111745T Expired - Lifetime ES2150927T3 (es) 1992-08-04 1993-07-22 Procedimiento para preparar espumas flexibles de poliuretano.

Country Status (6)

Country Link
US (1) US5391586A (es)
EP (1) EP0582141B1 (es)
CA (1) CA2100192C (es)
DE (1) DE69329589T2 (es)
ES (1) ES2150927T3 (es)
MX (1) MX9304610A (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19649828A1 (de) * 1996-12-02 1998-06-04 Bayer Ag Verfahren zur diskontinuierlichen Herstellung von weichelastischen, offenzelligen Polyurethanschaumstoffen

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929802A (en) * 1955-01-31 1960-03-22 Du Pont Elastic filaments of linear copolyurethanes
US3072582A (en) * 1955-10-20 1963-01-08 Gen Tire & Rubber Co Polyether-urethane foams and method of making same
GB1053131A (es) * 1963-02-11
US3325823A (en) * 1964-03-16 1967-06-13 Reeves Bros Inc Manufacture of foam material
US4072637A (en) * 1972-06-14 1978-02-07 Blount David H Process for the production of polyurethane resins and foams utilizing silico-formic acid
US4104236A (en) * 1974-08-28 1978-08-01 Union Carbide Corporation Liquid polymer/polyols and polyurethane elastomers based thereon
US3957889A (en) * 1975-05-02 1976-05-18 Air Products And Chemicals, Inc. Selective nitration of aromatic and substituted aromatic compositions
GB1594539A (en) * 1978-05-19 1981-07-30 Walmsley G Foam manufacture
US4497913A (en) * 1983-05-31 1985-02-05 Olin Corporation Process for preparing a stable dispersion of a polymer in a polyol and its use in the production of high resilience polyurethane foam
DE3630225A1 (de) * 1986-09-05 1988-03-10 Bayer Ag Verfahren zur herstellung von elastischen, offenzelligen polyurethan-weichschaumstoffen mit erhoehter stauchhaerte
GB9007063D0 (en) * 1990-03-29 1990-05-30 Arco Chem Tech High resilience flexible polyurethane foams

Also Published As

Publication number Publication date
CA2100192C (en) 2004-09-21
EP0582141B1 (en) 2000-10-25
EP0582141A1 (en) 1994-02-09
US5391586A (en) 1995-02-21
DE69329589T2 (de) 2001-03-15
DE69329589D1 (de) 2000-11-30
CA2100192A1 (en) 1994-02-05
MX9304610A (es) 1994-02-28

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