GB850664A - Improvements in or relating to the manufacture of cellular polymeric materials - Google Patents

Improvements in or relating to the manufacture of cellular polymeric materials

Info

Publication number
GB850664A
GB850664A GB3611757A GB3611757A GB850664A GB 850664 A GB850664 A GB 850664A GB 3611757 A GB3611757 A GB 3611757A GB 3611757 A GB3611757 A GB 3611757A GB 850664 A GB850664 A GB 850664A
Authority
GB
United Kingdom
Prior art keywords
stage
polyisocyanate
reacting
acting
active agents
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
GB3611757A
Inventor
Herbert Gudgeon
Kenneth Stephenson
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB3611757A priority Critical patent/GB850664A/en
Publication of GB850664A publication Critical patent/GB850664A/en
Expired legal-status Critical Current

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
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
    • C08G18/6484—Polysaccharides and derivatives thereof
    • 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
    • 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
    • C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives

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

Polyurethane foams are obtained by reacting, in a first stage, a polyisocyanate and a hydroxyended polyether, adding, in a second stage, water and a basic catalyst, this second stage being performed in the presence of a polymeric substance containing groups reactive with organic isocyanate and acting as a foam stabilizer. Suitable reactants are given, the catalyst being tertiary amines, and the stabilizers including cellulose caprate and ethyl cellulose. Other additions are organo polysiloxanes and surface active agents containing sulphonic acid and/or sulphate ester groups. Specification 842,734 is referred to.ALSO:Cellular polyurethanes are obtained by reacting, in a first stage, a polyisocyanate and a hydroxy-ended polyether, adding, in a second stage, water and a basic catalyst, this second stage being performed in the presence of a polymeric material containing groups reactive with organic isocyanate and acting as a foam stabilizer. Suitable reactants are given, the catalysts being tertiary amines, and the stabilizers including cellulose caprate and ethyl cellulose. Foam structure can be varied by adding organopolysiloxanes and surface active agents with sulphonic acid and/or sulphate ester groups. Specification 842,734 is referred to.
GB3611757A 1957-11-20 1957-11-20 Improvements in or relating to the manufacture of cellular polymeric materials Expired GB850664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3611757A GB850664A (en) 1957-11-20 1957-11-20 Improvements in or relating to the manufacture of cellular polymeric materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3611757A GB850664A (en) 1957-11-20 1957-11-20 Improvements in or relating to the manufacture of cellular polymeric materials

Publications (1)

Publication Number Publication Date
GB850664A true GB850664A (en) 1960-10-05

Family

ID=10385133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3611757A Expired GB850664A (en) 1957-11-20 1957-11-20 Improvements in or relating to the manufacture of cellular polymeric materials

Country Status (1)

Country Link
GB (1) GB850664A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3328320A (en) * 1963-02-25 1967-06-27 Ici Ltd Manufacture of flexible polyurethane foams utilizing polyether-polyisocyanate dispersion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3328320A (en) * 1963-02-25 1967-06-27 Ici Ltd Manufacture of flexible polyurethane foams utilizing polyether-polyisocyanate dispersion

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