Kinugawa Rubber Ind. Co., Ltd.

Hiroshi Togami

Masayoshi Miyama

Toshiaki Yamaguchi

Hiroyoshi Imura

A method for forming a weatherstrip includes extruding a compound formed of 1-10 weight of polyglycidyl methacrylate having an epoxy group in the molecular structure thereof added per 100 parts of a rubber compound formed of SBR/EPDM. As the compound is extruded from the extruder, a urethane coating material is supplied to a nozzle to accomplish coating of an article concurrently with forming thereof. The extruded article is then vulcanized to assure good sealability.

Method for forming a weatherstrip

A device producing a weather strip is shown, which includes (a) leading a first uncured pasty material into a certain shaping passage to produce an uncured shaped molded strap; (b) applying continuously a second uncured pasty material onto a given portion of the uncured shaped molded strap while the latter is being moved in the certain shaping passage thereby to produce a layered uncured shaped molded strap; and (c) curing the layered uncured shaped molded strap.

Growing community of inventors

Chiba, Japan

Hiroshi Togami