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:
May. 09, 1995
Filed:
Nov. 19, 1993
Applicant:
Inventor:
Carol L Knox, Monroeville, PA (US);
Assignee:
Polymer Product Company, Inc., Stockertown, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08K / ; C08L / ;
U.S. Cl.
CPC ...
524- 101 ; 525 98 ; 524416 ;
Abstract
An intumescent nonhalogenated flame retardant polystyrene composition having high impact strength comprises polystyrene, ammonium polyphosphate, tris(2-hydroxyethyl) isocyanurate, hydrated zinc borate, and substantially amorphous elastomeric polymer.