Automotive weatherstripping

Details Automotive weatherstripping Automotive weatherstripping

1993-06-03

1994-05-24

Schofer, Joseph L.

Stock material or miscellaneous articles

Composite

Of polyamidoester

4284247, 4284248, 4284255, 524232, B32B 2700

Patent

active

053147529

ABSTRACT:
The invention concerns a silicone-modified EPDM modified with a freeze release additive of a fatty acid amide and/or optionally, graphite having at least 85% carbon, and compounded and co-extruded onto the surface of elastomeric sponge automotive weatherstripping thereby forming a permanent skin surface on the sponge material. The resulting material has improved and desirable freeze-release and coefficient of friction properties. These improved properties eliminate the need for currently used spray coatings, resulting in manufacturing cost savings and more durable surface.

REFERENCES:
patent: 4150010 (1979-04-01), Itoh
patent: 4201698 (1980-05-01), Itoh
patent: 4720518 (1988-01-01), Chihara
patent: 4968469 (1990-11-01), White
Unichem International-Product Brochure (Dec. 1986).
Kirk-Othmer Encyclopedia, vol. 2, pp. 255-258 (1986).
Fats and Oils (ed. Kirschenbauer) pp. 8-13 (1960).

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