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:
Aug. 02, 1988
Filed:
Nov. 16, 1987
Applicant:
Inventors:
Fred M Sonnenberg, Merion, PA (US);
Dennis M Hajnik, West Chester, PA (US);
Assignee:
Arco Chemical Company, Newtown Square, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08V / ; C08V / ;
U.S. Cl.
CPC ...
521 60 ; 521 56 ; 521 88 ; 521 90 ; 521 98 ; 521907 ; 521 59 ;
Abstract
Various flame retardant agents have been added as a coating to seed beads of vinyl aromatic polymers. The resulting products have high resistance to burning and permit the use of lower concentrations of the retardant.