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:
Oct. 31, 1995
Filed:
Feb. 22, 1994
Applicant:
Inventor:
Mildred C Richards, Wakefield, MA (US);
Assignee:
The Kendall Company, Mansfield, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
428 358 ; 428 359 ; 428 368 ; 428 3691 ; 138146 ; 138D / ; 138D / ; 242-722 ; 524504 ; 524505 ;
Abstract
Improved thermoplastic adhesive liquid coatings adapted for use as a primer coating for inground pipelines, which coatings include an amphipathic metal complexing reagent in an amount effective to provide protection against cathodic disbondment, the improvement being the bonding to the thermoplastic moiety of an anhydride in an amount sufficient to provide still further protection against degradative environmental forces; and novel protective pipewrap systems including same.