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:
Jan. 22, 1999
Applicant:
Inventors:
Allan J. Crighton, Swindon, GB;
Paul T. Alder, Swindon, GB;
Assignee:
Trespaphan GmbH, Weisbaden, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 2/718 ;
U.S. Cl.
CPC ...
B32B 2/718 ;
Abstract
A method of heat sealing a heat sealable multilayer film having a first film surface which is heat sealable to itself or to other surfaces and a second film surface including particles of a cross-linked polymethyl methacrylate as an antiblock agent, the method comprising sliding the said second film surface over a heated heat sealing surface before effecting heat sealing of the film to itself or to another surface using said heated heat sealing surface.