National Starch and Chemical Investment Holding Corporation

Henkel IP Holding Gmbh

Henkel Ag & Company, Kgaa

Henkel US IP Lcc

Smita M Shah

Paul B Foreman

Rama S Chandran

Anthony Francis Jacobine

Laxmisha Sridhar

Jiangbo Ouyang

John Gregory Woods

Andrew D Messana

Yadunandan L Dar

Patrick S Eaton

Charles Willard Paul

Michael Timothy Philbin

Jules E Schoenberg

Yuxia Liu

Joel D Schall

David P Birkett

Eric N Silverberg

Lynnette M Hurlburt

David Mullen

Martin Wyer

Christopher Gerald Gore

Robert D Harlan

Hock Seng Tan

Deepak Hariharan

Austin Sloan

Susan Lydzinski

Ingrid Zhang

Swapnali Chaudhari

Peter L Merkel

Copolymers prepared by a reaction of (1) an unactivated olefin, (2) an activated olefin, and (3) a hydroxyl functional activated olefin and/or a hydroxyl functional unactivated olefin are described. The copolymers have a backbone of polar vinyl monomers and non-polar alkene monomers, with pendant hydroxyl functional groups. The copolymers are well suited for optically clear, pressure sensitive, polyurethane and/or barrier adhesives.

Olefin-acrylate copolymers with pendant hydroxyl functionality and use thereof

Disclosed are reactive functionalized, PIB grafted polymers having an architecture of one or more pendent polyisobutylene moieties grafted on to an organic backbone, wherein the backbone is not polyisobutylene and contains at least one telechelic, reactive functionality. Also a process for making the reactive functionalized, PIB grafted polymer s and curable compositions comprising the reactive functionalized, PIB grafted polymers.

Grafted telechelic polyisobutylenes possessing reactive functionality, processes for preparing the same and curable compositions comprising the same

The present invention discloses polymers prepared from polar vinyl monomers and non-polar olefin monomers with the polymers having high olefin content and high weight average molecular weights as well as methods of preparing them. The inventive polymers possess interesting properties that make them particularly attractive in several industrial applications.

High molecular weight polymers having high olefin content

Benzoylthiourea or benzoylthiourethane derivatives as cure accelerators in primers for two step adhesive systems are provided.

Accelerators for two step adhesive systems

An adhesive composition which lacks functional groups containing reactive hydrogen moieties and contains no post-polymerization chemical crosslinker finds use in transdermal drug delivery systems. The invention enables the administration of drugs containing a reactive functional group, which drugs have heretofore not been able to be administered by the transdermal route using conventional acrylic adhesives.

Non-reactive adhesive useful in transdermal drug delivery system

Silicone acrylic hybrid compositions prepared by reacting together silicone polymers, silicone resins, and silyl containing acrylic polymers are useful in adhesive compositions that find use in skin contact applications.

Silicone acrylic hybrid polymer-based adhesives

A dispersion of polymer particles, the particle containing, on average, one or more living radicals each, the radicals not being chemically protected. Further disclosed is a free radical polymerization process resulting in a dispersion containing polymer particles having on average one or more living radicals. The process involves carefully regulating the polymerization conditions to produce small size particles under monomer-starved conditions containing, on average, more than one living radical in every particle. These living polymer radicals can be further reacted to form polymers with a controlled architecture.

Dispersions containing living radicals

The present invention relates to a dispersion of polymer particles, the particle containing, on average, more than 1 living radicals each, the radicals not being chemically protected. The invention is also directed to a free radical polymerization process resulting in a dispersion containing polymer particles having on average one or more living radicals. The process involves carefully regulating the polymerization conditions to produce small size particles under monomer-starved conditions containing, on average, more than one living radical in every particle. These living polymer radicals can be further reacted to form polymers with a controlled architecture.

Pressure sensitive adhesive formulations of an acrylic polymer grafted with a hydrogenated rubber. In one embodiment, the polymer contains a hydroxyalkyl (meth)acrylate ester which is crosslinked with a titanium-containing chelated metal alkoxide. The adhesive formulations provide an exceptional combination of adhesion to low energy surfaces and high temperature cohesive strength.

Rubber-acrylic adhesive formulation

This invention relates to pressure sensitive adhesives, and processes of preparing such adhesives, comprising random star polymers which are crosslinked by reaction with multifunctional crosslinking agent. These adhesives can be used in coated articles.

Use of star-branched polymers in pressure sensitive adhesives

This invention relates to star-branched polymers containing pendent olefinic groups which have been crosslinked using actinic radiation and the use of these polymers in adhesives and coating applications.

Radiation curable free radically polymerized star-branched polymers

Pressure sensitive adhesive compositions for use in transdermal drug delivery systems comprising an adhesive composition which is tolerant to plasticization by cutaneous penetration enhancers contained in the transdermal drug formulation are disclosed. Specifically, the pressure sensitive adhesive composition of the present invention comprises an acrylic copolymer prepared from (i) at least 40% by weight of th total monomer composition of alkyl acrylate monomers with a Tg of -90 to 0.degree. C., (ii) 0-15% by weight of the total monomer composition of monomers with a Tg of 0 to 250.degree. C., and (iii) 10-60% by weight of the total monomer composition of substituted acrylamides or methacrylamides having the structural formula: ##STR1## wherein R.sub.1 is H or CH.sub.3,

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Edison, NJ, United States of America

Smita M Shah