B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 25/08 (2006.01) C08J 5/12 (2006.01) C08K 5/5425 (2006.01) C08L 77/00 (2006.01) C08L 7/00 (2006.01) C08L 21/00 (2006.01)
Patent
CA 2125469
Abstract A process for the production of a composite article having a thermoplastic component and a vulcanizate component bonded firmly together is disclosed. The process comprises vulcanizing a rubber compound in contact with the thermoplastic component under customary vulcanization conditions. The thermoplastic component comprises at least 30% by weight of polyamide and the rubber compound comprises 100 parts by weight of a rubber, 0 to 300 parts by weight of fillers, 0 to 150 parts by weight of a plasticizer, 1 to 10 parts by weight of a peroxidic vulcanization agent, 0 to 4 parts by weight of vulcanization activators and 1 to 10 parts by weight of a silane of the general formula Image where R1 is a divalent radical or a direct bond, R2 independently of one another are hydrogen, alkyl, cycloalkyl or aryl having in each case not more than 20 carbon atoms and R3, R4 and R5 have the same meaning as R2 or denote a -COOR2 group. The composite articles produced by the process have a strong adhesive bond between the components. They are prepared from standard polyamides, polyamide blends, polyamide blending compositions and fibre composite materials with a polyamide matrix and commercially available standard rubbers, without using adhesive resins impairing the properties of the vulcanizate or adhesion promoters applied between the polyamide and rubbers. The composites of the invention are suitable for various industrial applications.
Heuer Horst
Jadamus Hans
Schmidt Friedrich Georg
Degussa Ag
Fetherstonhaugh & Co.
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