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:
Nov. 05, 1985
Filed:
Oct. 04, 1984
Applicant:
Inventors:
Bernhard Wottka, Kastl, DE;
Alfred Weindl, Altotting, DE;
Assignee:
Heochst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
264175 ; 427-7 ; 524 35 ;
Abstract
The novel molding compositions with vinyl chloride polymer as the main constituent contain, in a specific quantity in each case, certain impact strength modifiers, polymethyl methacrylate and a special cellulose, namely powdered pure cellulose having a mean degree of polymerization of 300 to 1,000 and a maximum particle diameter of 0.09 mm. These molding compositions can readily be calendered. The films are particularly suitable for the production of forgery-proof valuable documents which can be personalized by means of a laser, for example credit cards.