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:
Jun. 09, 1981
Filed:
Dec. 05, 1979
Applicant:
Inventor:
Albert Strassel, Oullins, FR;
Assignee:
Produits Chimiques Ugine Kuhlmann, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428413 ; 138137 ; 138141 ; 138145 ; 138146 ; 138177 ; 156327 ; 1563317 ; 4272084 ; 4272088 ; 4273855 ; 427386 ; 427387 ; 4273935 ; 4274124 ; 427421 ; 427428 ; 427429 ; 4274301 ; 428421 ; 4284246 ;
Abstract
The present invention relates to a process for treating polyvinylidene fluoride surfaces to enhance adhesion of other polymers thereto comprising applying to at least one surface thereof a solution consisting essentially of a coating polymer selected from a polyurethane or an alkyl polymethacrylate and at least one aprotic polar solvent in which said polymer is soluble, and exposing said surface to a temperature of from about 100.degree. to 300.degree. C. for a time sufficient to evaporate said solvent.