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:
Dec. 27, 1983
Filed:
Jun. 28, 1982
Applicant:
Inventor:
Jack H Witman, East Hempfield Township, Westmoreland County, PA (US);
Assignee:
Armstrong World Industries, Inc., Lancaster, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428 42 ; 428507 ; 428532 ; 427154 ; 427155 ; 524 35 ; 524 37 ; 524 39 ; 524 42 ; 264300 ; 264304 ;
Abstract
The present invention relates to release coatings which comprise cellulosic esters or cellulosic ethers in combination with adhesion-promoting compounds having an affinity for vinyl chloride-containing compositions. The release coatings maintain their adherence characteristics during processing of the structure in which they are disposed, but substantially lose their adherence characteristics when said structure is fused, thereby becoming easily separable from the resulting product.