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:
Jan. 16, 2001
Filed:
Jul. 14, 1997
Applicant:
Inventors:
Werner Blömer, Erlenstrasse, DE;
Udo Reiter, Regerstrasse, DE;
Josef Rademacher, Beverly Hills, MI (US);
Assignee:
BASF Coatings AG, Muenster-Hiltrup, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 1/36 ; B29D 2/300 ; B32B 1/508 ; F16L 9/147 ;
U.S. Cl.
CPC ...
B05D 1/36 ; B29D 2/300 ; B32B 1/508 ; F16L 9/147 ;
Abstract
The invention relates to three-layer metal pipe coating compositions based on a powder primer, on a thermoplastic hard adhesive and on a polyolefin cladding. The powder primer contains epoxidized novolak resins, phenolic crosslinking agents and fillers based on crystalline silicic acid modifications. The invention likewise relates to a process for the exterior coating of metal pipes by a three-layer method, in which the powder primer described is applied to the metal pipe, a thermoplastic hard adhesive is applied to the powder primer, and subsequently a polyolefin cladding is applied.