Abstract: Acrylic copolymers that include the controlled placement of functional groups within the polymer structure are provided. The copolymers contain a reactive segment and a non-reactive segment and are manufactured via a controlled radical polymerization process. The copolymers are useful in the manufacture of adhesives and elastomers.

Abstract: A pressure sensitive adhesive formed from a blend of an acrylate polymer having at least one crosslinkable functional group, and a liquid oligomer having at least one crosslinkable functional group, wherein at least one of the acrylate polymer and the oligomer is crosslinked in the presence of the other.

Abstract: A pressure sensitive adhesive formed from a blend of an acrylate polymer having at least one crosslinkable functional group, and a liquid oligomer having at least one crosslinkable functional group, wherein at least one of the acrylate polymer and the oligomer is crosslinked in the presence of the other.

Abstract: A method for the production of glass or plastic laminates is provided comprising applying between opposing faces of glass or plastic substrates a pressure sensitive adhesive comprised of a curable blend of an epoxy resin and a polymer comprised of the polymerization reaction product of an alkyl (meth)acrylate monomer whose homopolymer has a Tg>20° C., optionally a C1-30 (meth)acrylate monomer, a nitrogen-containing polar monomer, and a polymerizable epoxy-containing monomer, with the monomers being present in an amount such that the copolymer has a Tg>50° C., and curing the adhesive.

Abstract: A high Tg acrylic polymer is provided as well as an epoxy-blend thereof for use as a pressure sensitive adhesive. The high Tg acrylic polymer comprises a copolymer of an alkyl (meth)acrylate monomer having a Tg>20° C., a C1-30 (meth)acrylate monomer, an nitrogen-containing polar monomer, and a polymerizable epoxy-containing monomer, with the polymer having a Tg>50° C. When blended with an epoxy resin, the resulting mixture exhibits desirable pressure sensitive adhesive properties and may be thermocured.

Abstract: A method is provided for the production of a graft copolymer or acrylate polymer blend in the presence of at least one liquid diluent comprising the steps of (1) providing a reaction mixture of at least one A monomer consisting of a monomeric (meth)acrylic acid ester of a non-tertiary alcohol in admixture with at least one liquid diluent which is non-reactive under conditions of free radical polymerization employed, optionally at least one B monomer different from said A monomer, optionally at least one polymeric graft moiety C having a Tg greater than 20° C.

Abstract: A high Tg acrylic polymer is provided as well as an epoxy-blend thereof for use as a pressure sensitive adhesive. The high Tg acrylic polymer comprises a copolymer of an alkyl (meth)acrylate monomer having a Tg>20° C., a C1-30 (meth)acrylate monomer, an nitrogen-containing polar monomer, and a polymerizable epoxy-containing monomer, with the polymer having a Tg>50° C. When blended with an epoxy resin, the resulting mixture exhibits desirable pressure sensitive adhesive properties and may be thermocured.

Abstract: A graft copolymer pressure sensitive adhesive is provided comprised of a backbone polymer having a polymeric moiety grafted thereto. The copolymer comprises at least one A monomer consisting of a monomeric (meth)acrylic acid ester of a non-tertiary alcohol, optionally at least one B monomer, optionally at least one polymeric graft moiety C having a Tg greater than 20° C., and a macromeric graft moiety D containing repeat hydrophilic units.

Abstract: A transdermal drug delivery system is provided which includes an optionally crosslinked macromer-reinforced (meth)acrylic ester base copolymer pressure sensitive adhesive wherein the macromer includes repeat hydrophilic units.

Abstract: A novel high performance pressure sensitive adhesive composition is provided comprised of a phase separated graft copolymer comprised of a polymerized acrylic or methacrylic acid ester backbone having grafted thereon pendant polymeric moieties such as polystyrene or poly-alpha-methylstyrene in an amount of from 1.5 to 2.5 grafts per polymer chain on average.

Abstract: A pressure sensitive adhesive transdermal hormone delivery system is provided comprised of (1) a macromer reinforced (meth)acrylic ester base copolymer, and (2) a pharmacologically active agent in homogeneous admixture with said macromer-reinforced base copolymer, wherein the macromer contains hydrophilic repeat units

Abstract: A conductive graft copolymer is provided comprised of a polymerized acrylic or methacrylic acid ester backbone having grafted thereon pendant polymeric sulfur, nitrogen or oxygen-containing heterocyclic moieties. The conductive graft copolymer is particularly useful as a pressure sensitive adhesive.

Abstract: Novel sulfur, oxygen and nitrogen-containing heterocyclic monomers are provided which may be used to produce conductive graft copolymers.

Abstract: An ionically-crosslinked absorbent graft copolymer which exhibits pressure sensitive adhesive properties is provided comprised of a hydrophilic and/or hydrophobic base monomer and a water-soluble or water-dispersible macromer. The ionically-crosslinked absorbent graft copolymer exhibits desirable water absorbency and water vapor transmission rates and may be used in a variety of medical applications such as a wound dressing, medical adhesive, or biomedical electrode.

Abstract: A covalently crosslinked absorbent graft copolymer is provided comprised of a water-soluble base monomer and a water-soluble or water-dispersible macromer. In a preferred embodiment, the water-soluble base monomer comprises a carboxylic hydroxyalkyl ester monomer and the water-soluble macromer comprises an ethoxylated or propoxylated hydroxyalkyl (meth)acrylate. The covalently crosslinked absorbent graft copolymer exhibits desirable water absorbency and water vapor transmission rates and may be used in a variety of medical applications such as a wound dressing, medical adhesive or biomedical electrode.

Abstract: A novel high performance pressure sensitive adhesive composition is provided comprised of a phase separated graft copolymer comprised of a polymerized acrylic or methacrylic acid ester backbone having grafted thereon pendant polymeric moieties such as polystyrene or poly-alpha-methylstyrene. The average number of carbon atoms present in the ester portion of the backbone ranges from 2.5 to 3.5. The composition is non-corrosive and has a low volatile content.

Abstract: A novel high performance pressure sensitive adhesive composition is provided comprised of a phase separated graft copolymer comprised of a polymerized acrylic or methacrylic acid ester backbone having grafted thereon pendant polymeric moieties such as polystyrene or poly-alpha-methylstyrene. The composition is non-corrosive and has a low volatile content.

Abstract: A method is provided for the production of a water-soluble or water-dispersible copolymer. The copolymer is comprised of a water-soluble base monomer and/or a water-soluble or water-dispersible macromer. The disclosed method involves a two step polymerization procedure wherein in a first step a minor portion of the reactants are polymerized to conversion under conditions which result in the formation of a low molecular weight product, and in a second step the remaining portion of the reactants are polymerized to conversion in the presence of the reaction product of the first step under conditions which result in the production of a higher molecular weight product.

Abstract: A radiation-cured adhesive film having differential adhesion on opposing surfaces of the adhesive layer is provided. The film comprises a backing layer having coated thereon a radiation-cured adhesive copolymer layer, said copolymer comprised of one or more urethane oligomers A, optionally one or more B monomers, and a macromer C defined by the formula X--(Y).sub.

Abstract: A water-soluble or water-dispersible pressure sensitive adhesive is provided comprised of a normally-tacky copolymer of a water-soluble base monomer and a water-soluble or water-dispersible macromer. In a preferred embodiment, the water-soluble base monomer comprises a carboxylic hydroxyalkyl ester monomer and the water-soluble macromer comprises an ethoxylated or propoxylated hydroxyalkyl (meth)acrylate.