MX169712B - Procedimiento para producir espumas de poliuretano usando modificadores de espuma - Google Patents

Procedimiento para producir espumas de poliuretano usando modificadores de espuma

Info

Publication number
MX169712B
MX169712B MX004133A MX413386A MX169712B MX 169712 B MX169712 B MX 169712B MX 004133 A MX004133 A MX 004133A MX 413386 A MX413386 A MX 413386A MX 169712 B MX169712 B MX 169712B
Authority
MX
Mexico
Prior art keywords
polyol
water
weight
parts
foam
Prior art date
Application number
MX004133A
Other languages
English (en)
Inventor
Frederick Eugene Bailey Jr
Michael Water Jorgenson
Robert Don Whitman
Original Assignee
Union Carbide 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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of MX169712B publication Critical patent/MX169712B/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • 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
    • C08G18/16—Catalysts
    • C08G18/22—Catalysts containing metal compounds
    • C08G18/225—Catalysts containing metal compounds of alkali or alkaline earth metals
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

La presente invención se refiere a un procedimiento para producir espumas de poliuretano flexibles que tienen estabilidad de espuma mejorada, que consiste de hacer reaccionar y formar la espuma en un paso de una mezcla de reacción que consiste de: 1) un poliol que tiene un número de hidroxilo de aproximadamente 10 a aproximadamente 100 y que tiene más de 50 por ciento de grupos hidroxi primarios o más de 50 por ciento de grupos hidroxilo secundarios: 2) un poliisocianato orgánico; 3) agua; y 4) un modificador de espuma que consiste d eun ión de metal alcalino o de metal alcalinotérreo y un anión de un ácido de Bronsted que tiene un pKa de más de 1, en donde el modificador de espuma es un modificador de espuma que no sea: a) una sal de metal alcalino térreo inorgánica que tiene una solubilidad en agua menor de un grmo de sal por 100 mililitros de agua a 25 grados C., b) fosfato de dihidrógeno de metal alcalino o c) sulfato de metal alcalino, y en donde la composición tiene un índice de isocianato de aproximadamente 90 a aproximadamente 130, con la condición de que, cuando hay más de 50 por ciento de grupos hidroxilo secundarios en el poliol, hay más de 5.5 partes en peso de agua por 100 partes en peso del polio, y con la condición adicional de que, cuando hay más de 50 por ciento de grupos hidroxilo primarios en el poliol, hay más de 3.5 partes en peso de agua por 100 partes en peso del poliol.
MX004133A 1985-10-25 1986-10-24 Procedimiento para producir espumas de poliuretano usando modificadores de espuma MX169712B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/791,515 US4686240A (en) 1985-10-25 1985-10-25 Process for producing polyurethane foams using foam modifiers

Publications (1)

Publication Number Publication Date
MX169712B true MX169712B (es) 1993-07-20

Family

ID=25153986

Family Applications (1)

Application Number Title Priority Date Filing Date
MX004133A MX169712B (es) 1985-10-25 1986-10-24 Procedimiento para producir espumas de poliuretano usando modificadores de espuma

Country Status (10)

Country Link
US (1) US4686240A (es)
EP (1) EP0220697B1 (es)
JP (1) JPS62181314A (es)
KR (1) KR930000322B1 (es)
AU (1) AU602661B2 (es)
BR (1) BR8605225A (es)
CA (1) CA1278648C (es)
DE (1) DE3673947D1 (es)
ES (1) ES2018149B3 (es)
MX (1) MX169712B (es)

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Also Published As

Publication number Publication date
EP0220697A3 (en) 1988-01-20
KR870004078A (ko) 1987-05-07
BR8605225A (pt) 1987-07-28
AU602661B2 (en) 1990-10-25
EP0220697A2 (en) 1987-05-06
EP0220697B1 (en) 1990-09-05
JPS62181314A (ja) 1987-08-08
ES2018149B3 (es) 1991-04-01
DE3673947D1 (de) 1990-10-11
JPH0420924B2 (es) 1992-04-07
AU6438186A (en) 1987-04-30
CA1278648C (en) 1991-01-02
KR930000322B1 (ko) 1993-01-15
US4686240A (en) 1987-08-11

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