The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 04, 1994
Filed:
Jun. 28, 1993
Applicant:
Inventor:
Steven Hartman, Erin, CA;
Assignee:
Industrial Thermo Polymers Limited, Mississauga, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 95 ; 521 79 ; 521 91 ; 521143 ;
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.