Loctite Corporation

Henkel Corporation

Peter A Salamon

Hsien-Kun Chu

Anthony Francis Jacobine

Steven Thomas Nakos

Robert P Cross

Frederick F Newberth, Iii

JoAnn DeMarco

The invention provides a reaction product derived from an epoxy-functional acrylic monomer and an alkylaminoalkylene polyalkoxysilane or from a reaction product derived from acrylic acid and an epoxidized polyalkoxysilane.

Polyurethane compositions containing both radiation and moisture curable groups

The present invention relates to an aqueous-based coating composition for forming strippable, protective coating for protecting surfaces, such as glass, metal, ceramic, plastic or other materials of construction. More specifically, the compositions and coatings formed therefrom of this invention are particularly useful in connection with protecting precision surfaces, such as optical lenses, including but not limited to ophthalmic lenses, telescopic lenses, microscopic lenses, and the like, which protection is desirably only of a temporary nature.

Temporary protective coatings for precision surfaces

An impregnation sealant composition comprises a low viscosity vulcanizable silicone. The silicone is selected from the group consisting of (i) a heat curable silicone composition formed as the reaction product in the presence of a platinum catalyst of a first silicon containing material containing at least two SiH functionalities and having a molecular weight less than 2000 with a second silicon containing material containing at least two ethylenically unsaturated functionalities and having a molecular weight less than 2000, said silicone composition having a ratio of SiH to Si-ethylenically unsaturated functionalities of from about 0.8 to about 1.2; and (ii) a room temperature vulcanizing silicone composition formed as the reaction product of a silicone fluid containing at least two SiOH functionalities and having a molecular weight less than 2000 with a silane cross-linker of formula (I):

Low viscosity silicone sealant

In a method for manufacturing ophthalmic, telescopic, microscopic, etc. lenses, the use of a radiation (e.g., UV or visible light) curable adhesive formulation containing a predominant amount of an acrylic capped organic prepolymer; a lesser amount of an ethylenically unsaturated diluent monomer; a minor amount of a non-reactive releasing agent and a suitable photoinitiator for blocking (bonding) and deblocking (debonding) a lens blank to a support member.

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Hebron, CT, United States of America

Peter A Salamon