MX9605706A - Proceso para preparar una espuma de poliuretano flexible. - Google Patents

Proceso para preparar una espuma de poliuretano flexible.

Info

Publication number
MX9605706A
MX9605706A MX9605706A MX9605706A MX9605706A MX 9605706 A MX9605706 A MX 9605706A MX 9605706 A MX9605706 A MX 9605706A MX 9605706 A MX9605706 A MX 9605706A MX 9605706 A MX9605706 A MX 9605706A
Authority
MX
Mexico
Prior art keywords
preparing
polyurethane foam
flexible polyurethane
weight
isocyanate
Prior art date
Application number
MX9605706A
Other languages
English (en)
Other versions
MXPA96005706A (es
Inventor
Mireille Berthine Albert Witte
Original Assignee
Ici Plc
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 GB9412105A external-priority patent/GB9412105D0/en
Application filed by Ici Plc filed Critical Ici Plc
Publication of MX9605706A publication Critical patent/MX9605706A/es
Publication of MXPA96005706A publication Critical patent/MXPA96005706A/es

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
    • C08G18/4841—Polyethers containing oxyethylene units and other oxyalkylene units containing oxyethylene 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
    • C08G18/08—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
    • 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
    • C08G2110/0041—Foam properties having specified density
    • C08G2110/0058—≥50 and <150kg/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)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Abstract

La presente invencion se refiere a un proceso para preparar una espuma de poliuretano flexible haciendo reaccionar I) un poliisocianato orgánico con II) un poliol que tiene un promedio nominal de funcionalidad hidroxilo de 2-3 y numero promedio de peso molecular de 1000 a 12000; y opcionalmente con III) un compuesto reactivo con isocianato que contiene por lo menos 2 átomos de hidrogeno reactivos con isocianato y que tiene un numero promedio de peso molecular de 60 a 999; utilizando IV) un agente de soplado; y opcionalmente V) un catalizador; y opcionalmente VI) otros auxiliares y aditivos conocidos per se, está caracterizado porque comprende: a) el poliisocianato es una composicion de poliisocianato que tiene un valor NCO de 11-22% por peso, el cual es una mezcla de a1. el poliisocianato es una composicion de poliisocianato que tiene un valor NCO de 11-22% por peso, el cual es una mezcla de a1. 75-95 partes por peso de un semi-prepolímero terminado en isocianato que tiene un valor NCO de 9-20% por peso, preparado haciendo reaccionar una cantidad excesiva de una composicion de poliisocianato, que consiste de35-75% por peso de diisocianato de difenilmetano y 25-65% por peso de poliisocianato de polimetileno-polifenileno, con un poliol que tiene un promedio nominal de funcionalidad hidroxilo de 2-3 y un numero promedio de peso molecular de 1000 a 12000; y a2. 5-25 partes por peso de un poliisocianato de polimetileno-polifenileno; b) 25-120 partes por peso de poliol 2) se utilizan por 100 partes por peso del poliisocianato orgánico; c) se utiliza agua como el agente de soplado en una cantidad de 3-15 partes por peso por 100 partes por peso de poliol 2); y d) la reaccion se lleva a cabo a un índice de 40-130.
MXPA/A/1996/005706A 1994-06-16 1995-05-31 Proceso para preparar una espuma de poliuretanoflexible MXPA96005706A (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9412105A GB9412105D0 (en) 1994-06-16 1994-06-16 Process for preparing flexible foams
GB9412105.0 1994-06-16
EP94203786 1994-12-30
EP94203786.2 1994-12-30

Publications (2)

Publication Number Publication Date
MX9605706A true MX9605706A (es) 1998-06-30
MXPA96005706A MXPA96005706A (es) 1998-10-30

Family

ID=

Also Published As

Publication number Publication date
JPH10501830A (ja) 1998-02-17
JP3995709B2 (ja) 2007-10-24
AU691623B2 (en) 1998-05-21
EP0765353A1 (en) 1997-04-02
EP0765355B1 (en) 1999-10-20
CN1070874C (zh) 2001-09-12
WO1995034590A1 (en) 1995-12-21
JPH10501571A (ja) 1998-02-10
EP0765354A1 (en) 1997-04-02
WO1995034591A1 (en) 1995-12-21
MY112722A (en) 2001-08-30
CA2190584A1 (en) 1995-12-21
ES2141944T3 (es) 2000-04-01
JP3995710B2 (ja) 2007-10-24
ES2139216T3 (es) 2000-02-01
TW358815B (en) 1999-05-21
DE69514659D1 (de) 2000-02-24
AU2672595A (en) 1996-01-05
DE69512911T2 (de) 2000-04-27
CN1069325C (zh) 2001-08-08
AU2672395A (en) 1996-01-05
US5491177A (en) 1996-02-13
EP0765354B1 (en) 2000-04-26
MX9605707A (es) 1998-05-31
JP3995711B2 (ja) 2007-10-24
EP0765353B1 (en) 2000-01-19
CN1150811A (zh) 1997-05-28
CN1150812A (zh) 1997-05-28
CA2190583A1 (en) 1995-12-21
DE69516517D1 (de) 2000-05-31
CN1150813A (zh) 1997-05-28
EP0765355A1 (en) 1997-04-02
ES2144613T3 (es) 2000-06-16
CA2190585A1 (en) 1995-12-21
MX9605705A (es) 1998-05-31
US5521225A (en) 1996-05-28
DE69512911D1 (de) 1999-11-25
WO1995034589A1 (en) 1995-12-21
AU691002B2 (en) 1998-05-07
US5491176A (en) 1996-02-13
US5594039A (en) 1997-01-14
MY130513A (en) 2007-06-29
AU2672495A (en) 1996-01-05
AU691301B2 (en) 1998-05-14
US5594040A (en) 1997-01-14
DE69514659T2 (de) 2000-12-07
JPH10501572A (ja) 1998-02-10
DE69516517T2 (de) 2000-09-14
TW344750B (en) 1998-11-11
TW290564B (es) 1996-11-11

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Legal Events

Date Code Title Description
FG Grant or registration
MM Annulment or lapse due to non-payment of fees