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:
May. 22, 2001
Filed:
Oct. 28, 1996
Applicant:
Inventors:
Régis Jacquemet, Evreux, FR;
Patrice Perret, Serquigny, FR;
Assignee:
Atofina, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D 2/200 ;
U.S. Cl.
CPC ...
B29D 2/200 ;
Abstract
The present invention relates to a metal surface coated with a thermoplastic polymer, the coating exhibiting a peel strength at 130° C. (according to DIN 30 670) which is higher than 400 N/5 cm. This value can be obtained by placing between the metal and the thermoplastic a layer of epoxy resin of Tg higher than 120° C. against the metal and then a layer of polypropylene-based binder. The invention is particularly useful for coating the external surface of pipes.