Centipede polymers and preparation and application in rubber compositions
AssigneeBridgestone Corporation
InventorsXiaorong Wang, Victor J. Foltz, Hideo Takeichi
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Abstract
The instant invention relates to poly(maleimide-co-alkenyl benzene) centipede polymer and a method for producing the polymer by reacting a poly(alkenyl benzene-co-maleic anhydride) in the presence of a primary amine in a substantially dry state. The invention is further directed to a process for blending the poly(maleimide-co-alkenyl benzene) centipede polymer with elastomeric polymers, in combination with, or in substitution of, conventional extender oils, to produce extended polymers having improved properties such as tensile strength, maximum elongation, tear strength, damping properties, and the like.
Claims24
A polymer composition, comprising a poly(maleimide-co-alkenyl benzene).
A method for the formation of a poly(maleimide-co-alkenyl benzene) polymer, comprising:
- reacting a poly(alkenyl benzene-co-maleic anhydride) in the presence of a primary amine in a substantially dry state and in respective weight proportions sufficient to form a poly(maleimide-co-alkenyl benzene) polymer.
A plasticized elastomer composition comprising 100 parts by weight of a solid elastomeric polymer;
- and 0.5-200 parts by weight of a poly(maleimide-co-alkenyl benzene).
A method for producing a vulcanizable elastomeric composition comprising:
- providing 100 parts by weight of a solid elastomeric polymer;
- adding to and admixing with said elastomeric polymer 0.5-200 parts by weight of a poly(maleimide-co-alkenyl benzene).
Dependencies are inferred from the claim text.