MX166374B - Un sistema de espumacion para espumas rigidas de uretano e isocianato - Google Patents

Un sistema de espumacion para espumas rigidas de uretano e isocianato

Info

Publication number
MX166374B
MX166374B MX020648A MX2064890A MX166374B MX 166374 B MX166374 B MX 166374B MX 020648 A MX020648 A MX 020648A MX 2064890 A MX2064890 A MX 2064890A MX 166374 B MX166374 B MX 166374B
Authority
MX
Mexico
Prior art keywords
mole percent
halocarbon
isocyanate
urethane
boiling point
Prior art date
Application number
MX020648A
Other languages
English (en)
Inventor
Guido Freddy Smits
Henri Jacobus Marie Grunbauer
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of MX166374B publication Critical patent/MX166374B/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
    • 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
    • C08J9/12—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 by a physical blowing agent
    • C08J9/14—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 by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • 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
    • C08J9/12—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 by a physical blowing agent
    • C08J9/14—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 by a physical blowing agent organic
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes

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 proceso para preparar una espuma rígida, de celdas cerradas, a base de poliisocianato que comprende hacer reaccionar un poliisocianato orgánico con un compuesto que contiene hidrógeno activo, en presencia de un agente soplador, caracterizado dicho proceso porque el agente soplador comprende a) de 40 a 95 por ciento molar, con base en los componentes a9 y b) de por lo menos un compuesto de halogenocarbono que tiene un punto de ebullición de por lo menos 283 grados C y b) de 5 a 60 por ciento molar, con un compuesto de halogenocarbono que tiene un punto de ebullición inferior a o igual a alrededor de 266 grados K; y en donde la relación del punto de ebullición de un covmponente a) al de un componente b) es de 1.06:1 a 1.20:1 Una espuma rígida de celdas cerradas, a base de poliisocianato, caracterizado además porque la espuma resultante contienen dentro de sus celdas una composicivón gaseosa que cvomprende : a) de 30 a 85 por ciento molar con base en los componentes (a) y (b) de una mezcla, la cual a su vez comprende (1) y (2) de un compuesto halogenocarbono que tiene un punto de ebullición de por lo menos 283 grados K y (2) de 5 a 60 por ciento molar base en los componentes (1) y (2) de un compuesto halogenocarbono que tiene un punto de ebullición inferior o igual a 266 grados K y en donde la relación del punto de ebullición del componente 81) respecto al componente (2) es de 1.067 a 1.20:1. Una composición de isocianato reactivo, caracterizado porque el agente soplador está presente en una cantidad de 1 a 30 por ciento en peso, con base en el peso total del compuesto o los compuestos que contienen hidrógeno activo.
MX020648A 1989-05-10 1990-05-09 Un sistema de espumacion para espumas rigidas de uretano e isocianato MX166374B (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/350,184 US4945119A (en) 1989-05-10 1989-05-10 Foaming system for rigid urethane and isocyanurate foams

Publications (1)

Publication Number Publication Date
MX166374B true MX166374B (es) 1993-01-05

Family

ID=23375568

Family Applications (1)

Application Number Title Priority Date Filing Date
MX020648A MX166374B (es) 1989-05-10 1990-05-09 Un sistema de espumacion para espumas rigidas de uretano e isocianato

Country Status (16)

Country Link
US (1) US4945119A (es)
EP (1) EP0398147B1 (es)
JP (1) JP3072847B2 (es)
KR (1) KR0155549B1 (es)
AT (1) ATE113973T1 (es)
AU (1) AU625203B2 (es)
BR (1) BR9002195A (es)
CA (1) CA2016329C (es)
DD (1) DD294269A5 (es)
DE (1) DE69013975T2 (es)
ES (1) ES2063192T3 (es)
IE (1) IE66821B1 (es)
MX (1) MX166374B (es)
NO (1) NO178502C (es)
NZ (1) NZ233596A (es)
TW (1) TW204358B (es)

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Also Published As

Publication number Publication date
ATE113973T1 (de) 1994-11-15
DE69013975T2 (de) 1995-03-16
CA2016329C (en) 2000-07-25
IE66821B1 (en) 1996-02-07
EP0398147B1 (en) 1994-11-09
KR900018191A (ko) 1990-12-20
US4945119A (en) 1990-07-31
DE69013975D1 (de) 1994-12-15
NO902045D0 (no) 1990-05-09
EP0398147A2 (en) 1990-11-22
CA2016329A1 (en) 1990-11-10
ES2063192T3 (es) 1995-01-01
JPH0491140A (ja) 1992-03-24
NO178502C (no) 1996-04-10
BR9002195A (pt) 1991-08-13
NO902045L (no) 1990-11-12
IE901682L (en) 1990-11-10
AU5482790A (en) 1990-11-15
TW204358B (es) 1993-04-21
JP3072847B2 (ja) 2000-08-07
KR0155549B1 (ko) 1998-12-01
DD294269A5 (de) 1991-09-26
NZ233596A (en) 1993-03-26
AU625203B2 (en) 1992-07-02
EP0398147A3 (en) 1991-03-20
NO178502B (no) 1996-01-02

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