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. 11, 1989
Filed:
Dec. 17, 1987
Applicant:
Inventors:
Huquette Miquel, Chaponost, FR;
Marcel Eyraud, Lyons, FR;
Assignee:
Rhone-Poulenc Films, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428333 ; 428480 ; 428900 ; 428458 ;
Abstract
The invention relates to composite thermoplastic polyester films with outstanding transparency, low surface roughness and good machinability. These films contain, in at least one outer layer, 0.1 to 1% of fine particles with a volume median diameter of between 0.6 and 1.5 micrometers. After being metallized, these films produce highly glossy films with a particularly low gloss difference between the 2 faces.