GB916745A - Improvements in the manufacture of polyether-polyurethane flexible foams - Google Patents

Improvements in the manufacture of polyether-polyurethane flexible foams

Info

Publication number
GB916745A
GB916745A GB20922/59A GB2092259A GB916745A GB 916745 A GB916745 A GB 916745A GB 20922/59 A GB20922/59 A GB 20922/59A GB 2092259 A GB2092259 A GB 2092259A GB 916745 A GB916745 A GB 916745A
Authority
GB
United Kingdom
Prior art keywords
polyether
condensate
propylene oxide
hydroxyl groups
xylylene
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
Application number
GB20922/59A
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.)
Individual
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
Application filed by Individual filed Critical Individual
Publication of GB916745A publication Critical patent/GB916745A/en
Expired 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
    • C08G18/08—Processes
    • C08G18/16—Catalysts
    • C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
    • 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
    • C08G18/4829—Polyethers containing at least three hydroxy 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
    • 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)

Abstract

Polyurethane foams are obtained by mixing in one step (1) a polyether having at least 85% terminal primary hydroxyl groups, mol. wt. of 1,600 to 3,400 and a hydroxyl number of 50 to 160 and being a condensate of propylene oxide and an aliphatic polyhydroxy compound having at least 3 hydroxyl groups; (2) a stabilizer of polydimethyl siloxane or siloxaneoxyalkylene block copolymers; (3) the diisocyanate of toluene or m-xylylene; (4) water, and (5) a basic catalyst containing a tertiary nitrogen atom. Up to 30% of the polyether can be a condensate of propylene oxide with ammonia or aliphatic amines. Up to 25% (relative to the polyether) of a polyether glycol or a linear polyester may be mixed with the polyether. Lists of suitable components are given and include conventional tertiary amine catalysts.ALSO:Polyether-polyurethane foams are obtained by mixing in one step (1) a polyether having at least 85% terminal primary hydroxyl groups, a molecular weight of 1600 to 3400 and a hydroxyl number of 50 to 160 and being a condensate of propylene oxide and an aliphatic polyhydroxy compound having at least 3 hydroxyl groups; (2) a stabilizer of polydimethyl siloxane or siloxane-oxyalkylene block co-polymers; (3) toluene-or m xylylene-diisocyanate; (4) water and (5) a basic catalyst containing a tertiary nitrogen atom. Up to 30% of the polyether can be a condensate of propylene oxide with ammonia or aliphatic amines. Up to 25% (relative to the polyether) of a polyether glycol or a linear polyester may be mixed with the polyether. Lists of suitable components are given.
GB20922/59A 1958-06-23 1959-06-18 Improvements in the manufacture of polyether-polyurethane flexible foams Expired GB916745A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74402258A 1958-06-23 1958-06-23

Publications (1)

Publication Number Publication Date
GB916745A true GB916745A (en) 1963-01-30

Family

ID=24991117

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20922/59A Expired GB916745A (en) 1958-06-23 1959-06-18 Improvements in the manufacture of polyether-polyurethane flexible foams

Country Status (1)

Country Link
GB (1) GB916745A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471418A (en) * 1965-03-24 1969-10-07 Allied Chem Urethane sponge prepared from crude polyisocyanates
FR2491075A1 (en) * 1980-09-29 1982-04-02 Texaco Development Corp METHOD FOR MANUFACTURING MOLDED SOFT MOLDED POLYURETHANE PRODUCT

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471418A (en) * 1965-03-24 1969-10-07 Allied Chem Urethane sponge prepared from crude polyisocyanates
US3471417A (en) * 1965-03-24 1969-10-07 Allied Chem Flexible urethane foams from crude polyisocyanates
FR2491075A1 (en) * 1980-09-29 1982-04-02 Texaco Development Corp METHOD FOR MANUFACTURING MOLDED SOFT MOLDED POLYURETHANE PRODUCT

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