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.

Date of Patent:
Dec. 03, 1991

Filed:

Feb. 28, 1990
Applicant:
Inventors:

Jack M McClintock, Pittsburgh, PA (US);

Gerald H Knittel, Brecksville, OH (US);

Assignee:

Morgan Adhesives Co., Stow, OH (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; F16L / ;
U.S. Cl.
CPC ...
428 365 ; 428 40 ; 428 42 ; 428352 ; 428906 ; 138157 ;
Abstract

A sandwich type composite adhesive construction in a simpler form, composed of a central release liner having a permanent adhesive layer on one side thereof and a pressure sensitive adhesive layer on the other side preferably separated therefrom by a release coat or member, and at least one release member on said adhesive layers but in a more complex form containing additional carrier layers or strengthening members including at least one or more support layers between two layers of permanent pressure sensitive adhesive. This adhesive construction provides a product, such as a pipe insulation that has unique properties and is cost effective.


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