GB803771A - Production of cellular synthetic rubbers - Google Patents

Production of cellular synthetic rubbers

Info

Publication number
GB803771A
GB803771A GB1809454A GB1809454A GB803771A GB 803771 A GB803771 A GB 803771A GB 1809454 A GB1809454 A GB 1809454A GB 1809454 A GB1809454 A GB 1809454A GB 803771 A GB803771 A GB 803771A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
intermediate
reactor
per cent
pressure
mixed
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
GB1809454A
Inventor
Peter Merriman
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.)
XETAL PRODUCTS Ltd
Original Assignee
XETAL PRODUCTS 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

Links

Classifications

    • 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
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/30Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by mixing gases into liquid compositions or plastisols, e.g. frothing with air
    • 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
    • C08J2375/00Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04Polyurethanes

Abstract

Polyurethane foams are prepared by dispersing an inert gas under pressure into a liquid intermediate reaction product of a polyisocyanate and a polyester, polyether or polyesteramide, the intermediate containing free isocyanate groups, releasing the pressure to cause the intermediate to expand and curing the expanded material. Expansion may be enhanced by the presence of water, carboxylic acids, hydrogen peroxide, organic peroxides and hydroperoxides, if necessary with additional polyisocyanate, volatile liquids or liquefied gases. The composition may include accelerators, plasticizers, thickeners, surface active agents and cross-linking agents (polyhydric alcohols, water, polyamines, amino-alcohols) which may have been reacted with the intermediate product. Pressures up to 1000 p.s.i. are referred to, the intermediate with any additions and containing the dispersed gas being passed through a continuous pressure reactor, which may be a scraped surface heat exchanger, leaving the reactor by a pressure reducing valve and being discharged into moulds or on to a conveyer belt. In an example 15 per cent by weight of aluminium naphthenate was mixed with a polyglycol adipate and then successively 4 per cent of a mixture of tertiary amines, 2 per cent of triethylamine and 12 per cent of mixed toluene diisocyanates were mixed in and the whole fed to a scraped surface reactor at 2 DEG C. together with sufficient carbon dioxide from a cylinder of liquid carbon dioxide to give a final product of density 0.05 grams/cc. The pressure in the reactor was 350 p.s.i. The emerging foam was directed into moulds, left for 20 minutes to set at room temperature and matured at 50 DEG C. in a hot air oven. The foam was mangled, trimmed and sliced.
GB1809454A 1954-06-21 1954-06-21 Production of cellular synthetic rubbers Expired GB803771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1809454A GB803771A (en) 1954-06-21 1954-06-21 Production of cellular synthetic rubbers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1809454A GB803771A (en) 1954-06-21 1954-06-21 Production of cellular synthetic rubbers

Publications (1)

Publication Number Publication Date
GB803771A true true GB803771A (en) 1958-10-29

Family

ID=10106554

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1809454A Expired GB803771A (en) 1954-06-21 1954-06-21 Production of cellular synthetic rubbers

Country Status (1)

Country Link
GB (1) GB803771A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1155234B (en) * 1958-02-06 1963-10-03 Dunlop Rubber Co Method and apparatus for the manufacture of polyurethane foams
US3755212A (en) * 1971-05-13 1973-08-28 Dow Chemical Co Air blown polyurethane foams
US3849156A (en) * 1969-01-31 1974-11-19 Union Carbide Corp Process for providing a backing on carpets
GB2116574A (en) * 1982-03-19 1983-09-28 Ici Plc Method of manufacturing polyurethane foams
EP0353061A2 (en) * 1988-07-29 1990-01-31 Pmc, Inc. Blowing agents for polyurethane foam
EP0761730A2 (en) * 1995-08-30 1997-03-12 ARCO Chemical Technology, L.P. Process and apparatus for producing froth polyurethane foam and multi-layer foam product
DE19539072C1 (en) * 1995-10-20 1997-06-12 Hennecke Gmbh Maschf Method and apparatus for the continuous production of polyurethane block foam
US5643970A (en) * 1994-12-27 1997-07-01 Maschinenfabrik Hennecke Gmbh Method and apparatus for foam manufacture using carbon dioxide dissolved under pressure
DE19622742C1 (en) * 1996-06-07 1998-03-12 Hennecke Gmbh A process for foam production using carbon dioxide dissolved under pressure
US5789457A (en) * 1994-06-28 1998-08-04 Bayer Aktiengesellschaft Method and device for the production of foam using carbon dioxide dissolved under pressure
US5840778A (en) * 1994-11-28 1998-11-24 Bayer Aktiengesellschaft Process and device for producing foam using carbon dioxide dissolved under pressure
US5883143A (en) * 1998-06-18 1999-03-16 Bayer Aktiengesellschaft Method and device for the production of foam using carbon dioxide dissolved under pressure
US6019919A (en) * 1996-07-05 2000-02-01 Bayer Aktiengesellscaft Process for foam production using carbon dioxide dissolved under pressure
US6147133A (en) * 1996-05-24 2000-11-14 Hennecke Gmbh Process and device for producing foam using carbon dioxide dissolved under pressure

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1155234B (en) * 1958-02-06 1963-10-03 Dunlop Rubber Co Method and apparatus for the manufacture of polyurethane foams
US3849156A (en) * 1969-01-31 1974-11-19 Union Carbide Corp Process for providing a backing on carpets
US3755212A (en) * 1971-05-13 1973-08-28 Dow Chemical Co Air blown polyurethane foams
GB2116574A (en) * 1982-03-19 1983-09-28 Ici Plc Method of manufacturing polyurethane foams
EP0353061A2 (en) * 1988-07-29 1990-01-31 Pmc, Inc. Blowing agents for polyurethane foam
EP0353061A3 (en) * 1988-07-29 1990-11-28 Pmc, Inc. Blowing agents for polyurethane foam
US5789457A (en) * 1994-06-28 1998-08-04 Bayer Aktiengesellschaft Method and device for the production of foam using carbon dioxide dissolved under pressure
US5840778A (en) * 1994-11-28 1998-11-24 Bayer Aktiengesellschaft Process and device for producing foam using carbon dioxide dissolved under pressure
US6689325B2 (en) 1994-11-28 2004-02-10 Bayer Aktiengesellschaft Process and device for producing foam using carbon dioxide dissolved under pressure
US5643970A (en) * 1994-12-27 1997-07-01 Maschinenfabrik Hennecke Gmbh Method and apparatus for foam manufacture using carbon dioxide dissolved under pressure
US5833930A (en) * 1994-12-27 1998-11-10 Maschinenfabrik Hennecke Gmbh Apparatus for foam manufacturing using carbon dioxide dissolved under pressure
EP0761730A3 (en) * 1995-08-30 1997-10-29 Arco Chem Tech Process and apparatus for producing froth polyurethane foam and multi-layer foam product
EP0761730A2 (en) * 1995-08-30 1997-03-12 ARCO Chemical Technology, L.P. Process and apparatus for producing froth polyurethane foam and multi-layer foam product
DE19539072C1 (en) * 1995-10-20 1997-06-12 Hennecke Gmbh Maschf Method and apparatus for the continuous production of polyurethane block foam
US5844015A (en) * 1995-10-20 1998-12-01 Maschinenfabrik Hennecke Gmbh Process and device for continuous production of polyurethane block foam
US6147133A (en) * 1996-05-24 2000-11-14 Hennecke Gmbh Process and device for producing foam using carbon dioxide dissolved under pressure
US6127442A (en) * 1996-06-07 2000-10-03 Hennecke Gmbh Process for foam production using dissolved under pressure carbon dioxide
DE19622742C1 (en) * 1996-06-07 1998-03-12 Hennecke Gmbh A process for foam production using carbon dioxide dissolved under pressure
US6019919A (en) * 1996-07-05 2000-02-01 Bayer Aktiengesellscaft Process for foam production using carbon dioxide dissolved under pressure
US5883143A (en) * 1998-06-18 1999-03-16 Bayer Aktiengesellschaft Method and device for the production of foam using carbon dioxide dissolved under pressure

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