Method of producing weather strip with metal core

Details Method of producing weather strip with metal core Method of producing weather strip with metal core

1994-03-15

1995-12-05

Barry, Chester T.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

1562726, 156332, 1562748, B32B 3100

Patent

active

054725445

ABSTRACT:
A method for producing a rubber based weather strip characterized as containing a metal core and as having a decorating treatment and/or a lubricating treatment applied to a surface of the rubber base which is made of EPDM. The decorating and/or lubricating treatment is effected by adhesively bonding a decorative and/or lubricating member to the surface of the rubber base. The method avoids the need for the conventional buffing step. This results in higher productivity for the production line which lowers costs and improves the work environment due to the absence of buffing dust. This method includes the steps of applying a corona discharge treatment to the surface of the rubber base of EPDM which has previously been subjected to a vulcanizing treatment, with the metal core being grounded, so that polar functional groups are formed in a molecular chain of the EPDM. The decorating treatment and/or the lubricating treatment is then applied to the surface of the rubber base in which the polar functional groups have been formed.

REFERENCES:
patent: 4396450 (1983-08-01), Blenner
patent: 4836901 (1989-06-01), Manabe et al.
patent: 5051586 (1991-09-01), Sabreen

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