CA2249538A1 - Process for producing hydrocarbon-blown hard polyurethane foams - Google Patents

Process for producing hydrocarbon-blown hard polyurethane foams

Info

Publication number
CA2249538A1
CA2249538A1 CA002249538A CA2249538A CA2249538A1 CA 2249538 A1 CA2249538 A1 CA 2249538A1 CA 002249538 A CA002249538 A CA 002249538A CA 2249538 A CA2249538 A CA 2249538A CA 2249538 A1 CA2249538 A1 CA 2249538A1
Authority
CA
Canada
Prior art keywords
molecular weight
ethylene oxide
started polyether
propylene oxide
pentane
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.)
Granted
Application number
CA002249538A
Other languages
French (fr)
Other versions
CA2249538C (en
Inventor
Karl Werner Dietrich
Norbert Eisen
Gerhard Heilig
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
Original Assignee
Individual
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 DE19611367A external-priority patent/DE19611367A1/en
Application filed by Individual filed Critical Individual
Publication of CA2249538A1 publication Critical patent/CA2249538A1/en
Application granted granted Critical
Publication of CA2249538C publication Critical patent/CA2249538C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/48Polyethers
    • C08G18/4804Two or more polyethers of different physical or chemical nature
    • C08G18/482Mixtures of polyethers containing at least one polyether containing nitrogen
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12Working-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
    • C08J9/14Working-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
    • C08J9/141Hydrocarbons
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00Foam properties
    • C08G2110/0025Foam properties rigid
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2110/00Foam properties
    • C08G2110/0041Foam properties having specified density
    • C08G2110/005< 50kg/m3
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2115/00Oligomerisation
    • C08G2115/02Oligomerisation to isocyanurate groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04Polyurethanes

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

A process for preparing rigid expanded materials containing urethane and optionally urea and isocyanurate groups, characterised in that a polyurethane rigid foam is prepared by reacting a) an aromatic polyisocyanate with b) a polyol component with on average at least 3 hydrogen atoms which can react with isocyanates, containing 1) 30 to 80 wt.% of an aromatic amine started polyether with a molecular weight of 300 to 800 based on 70 to 100 wt.% of 1,2-propylene oxide and 0 to 30 wt.% of ethylene oxide 2) 10 to 40 wt.% of a substantially sucrose started polyether with a molecular weight of 400 to 1,000 based on 70 to 100 wt.% of 1,2-propylene oxide and 0 to 30 wt.% of ethylene oxide 3) 5 to 30 wt.% of a propylene glycol started polyether with a molecular weight of 500 to 1,500 based on 70 to 100 wt.% of 1,2-propylene oxide and 0 to 30 wt.% of ethylene oxide 4) n-pentane and/or i-pentane as blowing agent 5) water 6) optional auxiliary agents and additives, wherein the sum of the wt.% of components 1), 2) and 3) is 100, is described.
CA002249538A 1996-03-22 1997-03-10 Process for producing hydrocarbon-blown hard polyurethane foams Expired - Fee Related CA2249538C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19611367.9 1996-03-22
DE19611367A DE19611367A1 (en) 1996-03-22 1996-03-22 Process for the production of hydrocarbon-driven rigid polyurethane foams
PCT/EP1997/001198 WO1997035899A1 (en) 1996-03-22 1997-03-10 Process for producing hydrocarbon-blown hard polyurethane foams

Publications (2)

Publication Number Publication Date
CA2249538A1 true CA2249538A1 (en) 1997-10-02
CA2249538C CA2249538C (en) 2006-10-03

Family

ID=37101801

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002249538A Expired - Fee Related CA2249538C (en) 1996-03-22 1997-03-10 Process for producing hydrocarbon-blown hard polyurethane foams

Country Status (1)

Country Link
CA (1) CA2249538C (en)

Also Published As

Publication number Publication date
CA2249538C (en) 2006-10-03

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Effective date: 20140311