Patent · US Active

Bi-layer adhesive for lens lamination

US9132594B2 · kind B2 · utility

1Cited by

10References

20Claims

0Family size

Assignee

Essilor International (Compagnie Generale d'Optique) · FR

Inventors

Arnaud Glacet · Gondecourt, FR
Peiqi Jiang · Dallas, US
Bruce Keegan · Sanford, US

Key dates

Filing date	Nov 4, 2008
Grant date	Sep 15, 2015
Priority date	—
Expiry date	Feb 28, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31551
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A method for laminating a film on to an optical article and a bi-layer adhesive for use in the method. The bi-layer adhesive includes a latex adhesive layer and an HMA layer sequentially disposed on the film and dried to form a solid layer of uniform thinness throughout to provide optical quality. Various types of films may be employed to provide an optical function. Following optional pre-treatment steps, the adhesives are coated on to the film. An optical hot press technique is used to deliver heat and pressure over a short period of time to form a functionally-enhanced optical article with high adhesive strength.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.