National Starch and Chemical Investment Holding Corporation

Patrick J Hayes

Rajeev Farwaha

Lien Phan

Melissa L Sardina

John Harrington

Samantha J Smith

Sarah L Bladon

Douglas N Boutillier

Cecile Dheret

Arnold S Baird

An water based adhesive useful for bottle labeling applications. The adhesive contains styrene maleic anhydride and rosin, and provides a formulation with alkali sensitivity at moderate temperature together with cold water resistance.

Aqueous adhesive compositions useful as bottle labeling adhesives

A pressure sensitive adhesive which is prepared by emulsion polymerizing an ethylenically unsaturated monomer and 0.01 to 2 pphm of a sterically hindered alkoxylated silane monomer. The silane crosslinks during film formation to provide the adhesive with increased shear strength without the disadvantage of decreased loop tack. The sterically hindered alkoxylated silane monomer has the structure R &mdash;Si&mdash;(OR ) (R ) wherein R is selected from the group consisting of an alkylene, arylene, and aralkylene group; R is independently a sterically hindered alkyl group having 3 to 10 carbon atoms in a straight or branched chain configuration; R is a monovalent alkyl group having 1 to 10 carbon atoms; and n is an integer of from 1 to 3.

Pressure sensitive adhesive compositions prepared with a sterically hindered alkoxylated silane

The invention relates to a pressure sensitive adhesive prepared from an aqueous emulsion polymer. The polymer is prepared by reacting at least one ethylenically unsaturated monomer and from about 0.1 to about 5 weight percent, based on the total weight of ethylenically unsaturated monomer, of a water-soluble or water-dispersible polymerizable surfactant having a terminal allyl amine moiety. The pressure sensitive adhesives may be used in all types of tapes, labels, decals, packaging, electrical insulation, and surgical bandaging.

Pressure sensitive adhesive compositions

Growing community of inventors

Caledon East, Canada

Patrick J Hayes