Colored extruded foam cross-linked backer rod

Details Colored extruded foam cross-linked backer rod Colored extruded foam cross-linked backer rod

1993-06-28

1994-01-04

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 79, 521 91, 521143, C08J 904

Patent

active

052760642

ABSTRACT:
The present invention relates to the forming of extruded foam products such as backer rods which are of a cross-linked polyethylene. Disazo condensation color pigments have been found to be particularly suitable as relative fast cross-linking occurs after extrusion. Use of traditional inorganic color pigments substantially impede the cross-linking mechanism. The invention is also directed to a method of forming such cross-linked products.

REFERENCES:
patent: 3904557 (1975-09-01), Guthrie et al.
patent: 4006741 (1977-02-01), Arluck
patent: 5007765 (1991-04-01), Dietlein et al.
patent: 5098782 (1992-03-01), Hovis et al.

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