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:
Jul. 05, 1994
Filed:
Nov. 19, 1990
Applicant:
Inventors:
Pascal E Esemplare, Mountainside, NJ (US);
Ronald W Gumbs, E. Brunswick, NJ (US);
Assignee:
Pearle, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
156154 ; 5121 / ; 5128 / ; 156155 ; 156305 ; 156327 ; 156344 ; 524277 ; 524487 ;
Abstract
Novel lower temperature hot melt adhesive and coating composition that melts at temperatures less than 190.degree. F. (about 87.8.degree. C). This composition has a sufficient modulus to bind ophthalmic lenses to metal blocks during grinding processes. The composition also exhibits low melt viscosity and may be mechanically removed without leaving significant residue. Composition comprises a resin, a tackifier, a wax (generally with a molecular weight less than 600), and an optional stabilizer.