Abstract: Pressure sensitive adhesive compositions are described comprising polymerized units derived from alkyl (meth)acrylate monomer(s) and a crosslinking monomer comprising at least two terminal groups selected from allyl, methallyl, or combinations thereof. In one embodiment, the pressure sensitive adhesive composition is a syrup or the reaction product of a syrup comprising i) a free-radically polymerizable solvent monomer; and ii) a solute (meth)acrylic polymer The syrup or the (meth)acrylic solute polymer comprises polymerized units derived from the cross-linking monomer. Also described are pressure sensitive adhesive articles and methods.

Abstract: The present invention is directed to a multilayer pressure sensitive adhesive (PSA) film, having a first pressure sensitive adhesive layer and at least an opposing layer, wherein the first pressure sensitive adhesive layer comprises a pressure-sensitive adhesive composition with a (meth)acrylic-based elastomeric material comprising a reaction product of polymerizable material comprising: (a) a first monomer which is an alkyl (meth)acrylate ester of a primary alcohol R1—OH, the alkyl (meth)acrylate ester being of Formula (I) CH2?C(R2)—(CO)—OR1?? (I) wherein R1 is an alkyl having 14 to 25 carbon atoms and the primary alcohol R1—OH has an iso index equal to at least 2 but no greater than 4; R2 is hydrogen or methyl; and (b) a second monomer having an ethylenically unsaturated group; wherein the at least one opposing layer comprises at least one filler material. The invention is also directed to a method for the manufacturing of such a multilayer PSA film and its use.

Abstract: A pressure sensitive adhesive composition is described comprising at least 50 wt-% of polymerized units derived from alkyl meth(acrylate) monomer(s); and 0.2 to 15 wt-% of at least one cross-linking monomers comprising a (meth)acrylate group and a C6-C20 olefin group, the olefin group being optionally substituted. In another embodiment, an adhesive composition is described comprising a syrup comprising i) a free-radically polymerizable solvent monomer; and ii) a solute (meth)acrylic polymer comprising polymerized units derived from one or more alkyl (meth)acrylate monomers; wherein the syrup comprises at least one crosslinking monomer or the (meth)acrylic solute polymer comprises polymerized units derived from at least one crosslinking monomer, the crosslinking monomer comprising a (meth)acrylate group and a C6-C20 olefin group, the olefin group being optionally substituted. In yet other embodiments, methods of preparing adhesive compositions are described.

Abstract: Pressure-sensitive adhesive compositions and articles containing the pressure-sensitive adhesives are provided. The pressure-sensitive adhesives contain an (meth)acrylic-based elastomeric material prepared an alkyl (meth)acrylate having an alkyl groups that is branched and that contains at least 14 carbon atoms.

Abstract: A film is described comprising a (meth)acrylic polymer and a polyvinyl acetal (e.g. butyral) resin. In some embodiments, the film has a glass transition temperature (i.e. Tg) ranging from 30° C. to 60° C. In some embodiments, the film has a gel content of at least 20% or greater. In some embodiments, the film has an elongation at break of at least 175%. The film typically comprises photoinitiator as a result of the method by which the film was made. The film may be a monolithic film or a layer of a multilayer film.

Abstract: A multifunctional polymerizable ionic liquid is described comprising an anion and a cationic group having at least two ethylenically unsaturated polymerizable groups, each bonded to the cationic group via a divalent non-alkyl linking group. The multifunctional linking groups independently comprise a heteroatom such as oxygen or nitrogen. The linking groups may independently comprise one or more linkages such as an amide, urea, and more typically a urethane or ester linkage. The ethylenically unsaturated polymerizable groups are typically (meth)acrylate groups. Coatings and coated articles are also described.

Abstract: This disclosure provides novel adhesive compositions comprising a highly crosslinked and plasticized low Tg (meth)acrylic copolymer that are self-wetting when applied to a substrate, and peelable therefrom.

Abstract: Polymeric compositions are provided that include a 1,2,5-pentanetriol trialkylester plasticizer. The plasticizer has low odor, has good compatibility with a variety of polymers such as hydrophilic polymeric materials, and can be formed from renewable resources. Further, the plasticizer can be used at temperatures often encountered during hot melt processing of polymeric compositions.

Abstract: Fasteners for producing double blind joints where the fastener is not visible or accessible are provided. The fasteners comprise a shape memory polymer that may be used to fasten workpieces by heating the fasteners, inducing recovery of the original, permanent shape of the fasteners.

Abstract: Articles are provided, having a multilayer structure including (a) a first layer formed from polyolefin and including undercut features formed on and extending from an integral backing; (b) a second layer including an adhesive having a Shore D hardness of greater than 59 when cured; and (c) a third layer including a substrate. The second layer is interlocked with the undercut features, the third layer is adhered to the adhesive, and the second layer is disposed between the first layer and the third layer. A method is also provided including (a) depositing a polyolefin resin into a mold cavity to form a first layer including undercut features; (b) demolding the first layer from the mold cavity at a rate of at least 150 millimeters per minute; (c) applying a curable adhesive to the undercut features to form a second layer attached to the first layer; and (d) attaching a third layer including a substrate to the second layer.

Abstract: Pressure-sensitive adhesive compositions and articles containing the pressure-sensitive adhesives are provided. The pressure-sensitive adhesives contain an (meth)acrylic-based elastomeric material prepared from (2-isopropyl-5-methyl)hexyl (meth)acrylate.

Abstract: Polymeric compositions are provided that include a furan 2,5-di-ester or tetrahydrofuran 2,5-di-ester plasticizer. The plasticizer has low odor, has good compatibility with a variety of polymers such as hydrophilic polymeric materials, and can be formed from renewable resources. Further, the plasticizer can be used at temperatures often encountered during hot melt processing of polymeric compositions.

Abstract: Curable and cured compositions are provided that can contain a significant amount of a renewable material based on vegetable oil. More particularly, the curable compositions contain an acid-modified epoxidized vegetable oil (acid-modified EVO) and a (meth)acrylic copolymer having pendant carboxylic acid groups. When the curable composition is reacted to form a cured composition, the acid-modified EVO, which contains greater than one epoxide group per molecule, functions to crosslink the (meth)acrylic copolymer by reacting with the pendant carboxylic acid groups. If the (meth)acrylic copolymer is elastomeric, the cured composition can be a pressure-sensitive adhesive.

Abstract: Bisanhydrohexitol derivatives having terminal mercapto groups are provided. Additionally, curable compositions that include these mercapto-containing bisanhydrohexitol derivatives, cured compositions prepared from the curable compositions, and articles containing the cured compositions are provided. More specifically, the curable compositions are epoxy-based formulations and the mercapto-containing bisanhydrohexitol derivatives function as curing agents for epoxy resins.

Abstract: Disclosed herein are microstructured articles that can be made by molding. The microstructured articles comprise crosslinked unsaturated polymers formed by ring opening metathesis polymerization (ROMP) of a monomer composition, the monomer composition comprising a cyclic monomer having at least one reactive double bond. The microstructured articles may be structured in that they comprise at least one microstructured feature having a dimension of less than about 2 mm, or less than about 500 um. The microstructured articles may also comprise a plurality of such microstructured features. Also disclosed herein are methods of making the microstructured articles.

Abstract: This disclosure provides novel adhesive compositions comprising a highly crosslinked and plasticized low Tg (meth)acrylic copolymer that are self-wetting when applied to a substrate, and peelable therefrom.

Abstract: Pressure-sensitive adhesives that have good performance characteristics under typical use conditions and that later can be degraded and/or removed readily under basic conditions are provided. More specifically, the pressure-sensitive adhesives contain a copolymeric (meth)acrylic-based elastomeric material prepared from a polymerizable material that contains a (meth)acrylate monomer having both a (meth)acryloyl group plus an ester linkage that is not part of a (meth)acryloyl group.

Abstract: Curable compositions, cured compositions, and articles that include the cured compositions are described. The curable composition contains a) an epoxy resin, b) a curing agent, c) a reactive liquid modifier, and d) a toughening agent. The reactive liquid modifier is an acetoacetate ester of a polyol that is a vegetable oil, that is prepared from a vegetable oil, or that is a mixture thereof. The cured compositions can be used as adhesives such as structural adhesives or as polymeric coatings.

Abstract: A pressure sensitive adhesive composition is described comprising at least 50 wt-% of polymerized units derived from alkyl meth(acrylate) monomer(s); and 0.2 to 15 wt-% of at least one crosslinking monomers comprising a (meth)acrylate group and a C6-C20 olefin group, the olefin group being optionally substituted. In another embodiment, an adhesive composition is described comprising a syrup comprising i) a free-radically polymerizable solvent monomer; and ii) a solute (meth)acrylic polymer comprising polymerized units derived from one or more alkyl(meth)acrylate monomers; wherein the syrup comprises at least one crosslinking monomer or the (meth)acrylic solute polymer comprises polymerized units derived from at least one crosslinking monomer, the crosslinking monomer comprising a (meth)acrylate group and a C6-C20 olefin group, the olefin group being optionally substituted.

Abstract: A pressure-sensitive adhesive composition comprises a polyvinyl ether polymer. The polyvinyl ether polymer comprises 2-alkylalkoxyethylene monomeric units independently represented by the formula wherein R1 and R2 represent alkyl groups, and wherein taken together R1 and R2 have from 8 to 30 carbon atoms. An adhesive article comprises a layer of the pressure-sensitive adhesive composition on a substrate.