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:
Mar. 26, 1996
Filed:
Feb. 08, 1995
Applicant:
Inventors:
Patricia J Deeney, Lawrenceville, NJ (US);
David S Garrison, Yardley, PA (US);
David E Newman, Huntington Station, NY (US);
Assignee:
Garlock Inc., New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B29C / ; C08K / ; C08L / ;
U.S. Cl.
CPC ...
264460 ; 264211 ; 264122 ; 264124 ; 26417211 ; 264464 ; 264482 ; 264127 ; 524546 ; 524430 ; 524434 ;
Abstract
A laser markable composite material which when so marked retains good color contrast after heat aging. The material comprises polytetrafluoroethylene resin, photosensitive filler material and an extrusion aid. The photosensitive material is preferably a metal oxide and has a larger mean particle size than typical pigments. Also disclosed is a sequence of milling, mixing and blending steps which forms the desired composite material.