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:
Apr. 10, 1984
Filed:
Jun. 16, 1982
Applicant:
Inventor:
Raymond T Woodhams, Toronto, Ontario, M6S 2W9, CA;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
523212 ; 524275 ; 524487 ; 524449 ;
Abstract
Mica reinforced thermoplastic composites, especially polypropylene composites, are prepared by a hot melt mixing process in which the mix contains propylene polymer waxes, in an amount up to about 10 percent by weight based upon the mica. The propylene polymer wax may be degraded, hydrocarbon isotactic polypropylene, or derivatized polypropylene wax such as maleated or sulfonated polypropylene wax. The wax has the effect of increasing the tensile strength and durability of the composite, and providing a smooth, uniform and glossy surface finish.