Rubber shaped articles having a finishing layer and a process for production thereof
AssigneeToyoda Gosei Co., Ltd.
InventorTadanobu Iwasa
Life of this patent
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Abstract
A rubber shaped article having a finishing layer which comprises a main body of rubber shaped article made of EPDM, a finishing layer of a PVC composition formed on the main body, and an adhesive layer formed between the main body and the finishing layer, said adhesive layer comprising 40 to 80% by weight of NBR, 20 to 40% by weight of EPDM and 0 to 35% by weight of SBR; and a process for producing said rubber shaped article. The rubber shaped article of the present invention provides internal and external automotive trims having an improved decorative design, with high productivity.
Claims10
An article of manufacture comprising
- (a) an EPDM rubber substrate,
- (b) a PVC layer formed on the substrate, and
- (c) an adhesive layer binding the PVC layer to the substrate comprising a rubber blend of NBR, EPDM, and optionally SBR.
A process for producing an article of manufacture comprising a main body made of EPDM compounded rubber and a PVC layer formed on the substrate which are united in a body through an adhesive layer, said process comprising
- a step of forming the adhesive layer which comprises a rubber blend of NBR, EPDM, and optionally SBR, on said main body of shaped article;
- a step of forming the finishing layer of the PVC layer in the adhesive layer;
- a vulcanization step;
- and
- a heating step.
Dependencies are inferred from the claim text.