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. 30, 1994
Filed:
Dec. 13, 1993
Applicant:
Inventor:
Murray H Reich, Princeton, NJ (US);
Assignee:
Biolan Corporation, Princeton, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08L / ;
U.S. Cl.
CPC ...
523125 ; 523124 ; 264211 ; 524495 ; 524496 ; 524 94 ; 524 96 ; 524528 ; 524534 ;
Abstract
Process for controlling the photodegradation of a film of polypropylene or propylene copolymers having a thickness of about 1.25 mils or less, by forming a composition comprising carbon black as the sole UV light absorbing staiblizer and comprising about 0.5% to about 2.4% by weight of the film, hindered amine light stabilizer for interrupting the free radical chain degradation mechanism and comprising about 0.02% to about 0.4% by weight of the film; and an impact modifier for enhancing the photodegradability of the film and comprising about 1% to 40% by weight of the film.