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:
Mar. 03, 1981
Filed:
Feb. 08, 1979
Applicant:
Inventors:
Gilbert Roullet, Tremblay les Gonesse, FR;
Pierre Legrand, Antony, FR;
Assignee:
Rhone-Poulenc Industries, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B32B / ; B65D / ;
U.S. Cl.
CPC ...
428 36 ; 215 / ; 264516 ; 264134 ; 428 35 ; 428483 ; 428521 ; 428522 ; 428523 ; 428910 ;
Abstract
The invention pertains to a process for producing bioriented polyester hollow bodies characterized by good gas and flavor tightness, wherein one wall of a preform is coated with an aqueous composition consisting of at least two incompatible polymers, one of which is a water soluble polyvinyl alcohol and the other, a polymer latex with low water sensitivity; the coating is dried and the preform is bidrawn-blown.