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    5.
    发明专利
    未知

    公开(公告)号：DE1720141A1

    公开(公告)日：1971-07-22

    申请号：DE1720141

    申请日：1967-02-14

    Applicant: POLYMER CORP

    Inventor： CLARK ROY

    IPC: C08L9/00 ,  C08L9/06 ,  C08L25/10 ,  C08D

    Abstract: 1,163,656. Moulding compositions based on trans-1,4-polyisoprene. POLYMER CORP. Ltd. 13 Feb., 1967 [16 Feb., 1966], No. 6789/67. Heading C3P. A composition comprises a major proportion by weight of trans-1,4-polyisoprene together with a minor proportion by weight of a compatible polymer together with 30-150 parts by weight per 100 parts by weight total polymer of a filler having an average particle size less than 45 Á. Suitable compatible polymers are butyl rubber, oil-extended SBR and a mixture of SBR and styrene-butadiene resin. Suitable fillers are kaolin, calcium carbonate, carbon black and silica. The composition may be moulded to form a cutting block.

    FOAM RUBBER-BACKED TEXTILES
    6.
    发明专利
    FOAM RUBBER-BACKED TEXTILES 未知

    公开(公告)号：CA876069A

    公开(公告)日：1971-07-20

    申请号：CA876069D

    申请日：1969-11-05

    Applicant: POLYMER CORP

    Inventor： WESTFIELD DONALD ,  CLARK ROY

    IPC: D06N7/00 ,  A47G27/00 ,  A47G27/02 ,  B32B20060101 ,  B32B5/18 ,  B32B5/22 ,  B32B5/24 ,  B32B5/32 ,  B32B25/00 ,  B32B25/10 ,  D05C15/04 ,  D06N20060101 ,  D06N3/10

    Abstract: 1320710 Foam coated fabrics POLYMER CORP Ltd 7 Oct 1970 [5 Nov 1969] 47730/70 Heading B2E Foam rubber-backed fabrics are produced by applying to a fabric surface a thin precoating of a foamed latex composition in amount of less than 12 ounces dry weight per square yard of fabric, optionally partially or completely drying the precoating, applying over the precoating a thick backing coating of a different foamed latex compound comprising a rubbery polymer, filler and a vulcanizing agent for the rubbery polymer and drying the backing coating and vulcanizing the rubbery polymer of the backing coating in its foamed state. The precoat compound may contain 0 to less than 100 parts filler per 100 parts of rubber. The foams may be applied by spraying, spreading or by means of a lick-roller. The precoated fabric may be heated, as by infrared lamps, to evaporate the water before application of the top coating. The rubber may be natural or synthetic such as homopolymers of dienes, such as butadiene and isoprene or copolymers of dienes with vinyl halides, styrenes, unsaturated acids such as acrylic acid, and their amides, nitriles and esters such as acrylamide, acrylonitrile, and methylacrylate. The fabric may be a carpet.

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