Abstract: The present invention is an assembly layer for a flexible device. The assembly layer is derived from precursors that include about 0 to about 50 wt % C1-C9 alkyl(meth)acrylate, about 40 to about 99 wt % C10-C24 (meth)acrylate, about 0 to about 30 wt % hydroxyl(meth)acrylate, about 0 to about 10 wt % of a non-hydroxy functional polar monomer, and about 0 to about 5 wt % crosslinker.

Abstract: Three-dimensional polymeric article (100) having first (101) and second (102) opposed major surfaces, a first dimension perpendicular to a second dimension, a thickness orthogonal to the first and second dimensions, and a plurality of alternating first (107) and second (109) polymeric regions along the first or second dimensions, wherein the first (107) and second (108) regions extend at least partially across the second dimension, wherein the first regions (107) are in a common plane (115) and wherein some of the second regions (108) project outwardly from the plane (115) in a first direction (generally perpendicular from the plane), and some of the second regions (108) project outwardly from the plane (115) in a second direction that is generally 180 degrees from the first direction, where the first regions (107) have a first crosslink density, wherein the second regions (108) have a second crosslink density, and wherein the second crosslink density of the second regions (108) are less than the first crossl

Abstract: Three-dimensional polymeric article (100) having first (101) and second (102) opposed major surfaces, a base body (103) having a first dimension, a second dimension perpendicular to the first dimension, and a thickness, wherein the thickness is orthogonal to the first and second dimensions, wherein the base body (103) comprises a plurality of alternating, adjacent first (107) and second (108) polymeric regions along the first dimension, wherein the second dimensions of the first (107) and second (108) regions extend at least partially across the second dimensions, wherein the first regions (107) have a first crosslink density, wherein the second regions (108) have a second crosslink density, wherein the second crosslink density of the second regions (108) are less than the first crosslink density of the first regions (107), wherein the first and second regions extend perpendicularly in two directions from a central plane (115) in the base body (103) parallel to the first and second dimensions of the polymeric

Abstract: This disclosure relates to viscoelastic damping materials and constructions which may demonstrate low temperature performance and adhesion and which may be used in making vibration damping composites. Viscoelastic damping materials and constructions may include polymers or copolymers of monomers according to formula I: CH2?CHR1—COOR2??[I] wherein R1 is H, CH3 or CH2CH3 and R2 is a branched alkyl group containing 12 to 32 carbon atoms.

Abstract: A composition is described comprising a polymer. The polymer comprises polymerized units derived from a cleavable crosslinking monomer. The cleavable crosslinking monomer comprises at least two free-radically polymerizable groups and at least one group having the formula —O—C(R2)(R3)—O—, wherein R2 and R3 are independently hydrogen, alkyl, or aryl. The composition has a Tg no greater than 50° C. In some embodiments, the composition has a storage modulus greater than 3×105 Pa at 25° C. and 1 Hz and may be characterized as a non-tacky polymer. In other embodiments, the composition is a pressure sensitive adhesive. Upon cleavage of at least a portion of the polymerized monomeric units derived from the cleavable crosslinking monomer, the composition exhibits a change in at least one physical property. In another embodiment, the composition comprises a polymer and fragments. The fragments comprise the reaction product of a free-radically polymerizable group bonded to a polymer chain and a pendent hydroxyl group.

Abstract: Multilayer adhesive tapes including at least one microstructured elastomeric layer and at least one layer of a pressure sensitive adhesive disposed on the microstructured elastomeric layer, and articles that include such multilayer adhesive tapes.

Abstract: Three-dimensional polymeric article (100) having first (101) and second (102) opposed major surfaces, a first dimension perpendicular to a second dimension, a thickness orthogonal to the first and second dimensions, and a plurality of alternating first (107) and second (109) polymeric regions along the first or second dimensions, wherein the first (107) and second (108) regions extend at least partially across the second dimension, wherein the first regions (107) are in a common plane (115) and wherein some of the second regions (108) project outwardly from the plane (115) in a first direction (generally perpendicular from the plane), and some of the second regions (108) project outwardly from the plane (115) in a second direction that is generally 180 degrees from the first direction, where the first regions (107) have a first crosslink density, wherein the second regions (108) have a second crosslink density, and wherein the second crosslink density of the second regions (108) are less than the first crossl

Abstract: Three-dimensional polymeric article (100) having first (101) and second (102) opposed major surfaces, a base body (103) having a first dimension, a second dimension perpendicular to the first dimension, and a thickness, wherein the thickness is orthogonal to the first and second dimensions, wherein the base body (103) comprises a plurality of alternating, adjacent first (107) and second (108) polymeric regions along the first dimension, wherein the second dimensions of the first (107) and second (108) regions extend at least partially across the second dimensions, wherein the first regions (107) have a first crosslink density, wherein the second regions (108) have a second crosslink density, wherein the second crosslink density of the second regions (108) are less than the first crosslink density of the first regions (107), wherein the first and second regions extend perpendicularly in two directions from a central plane (115) in the base body (103) parallel to the first and second dimensions of the polymeric

Abstract: Polymerizable compositions comprising a redox initiator system is disclosed. The redox initiators comprises a photolabile reducing agent, that photolyzes and initiates the redox cycle. Dental compositions comprising dental resins and the photolabile redox initiator system are also described.

Abstract: A composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a stabilizing additive of a (meth)acrylate copolymer having pendent phosphine, arsine or stibine groups.

Abstract: Polymerizable compositions comprising a redox initiator system is disclosed. The redox initiator system comprises a photolabile transition metal complex that photolyzes and initiates the redox cycle. Dental compositions comprising dental resins and the photolabile redox initiator system are also described.

Abstract: Polymerizable dental compositions comprising a redox initiator system is disclosed. The redox initiator system comprises a photolabile transition metal complex that photolyzes and initiates the redox cycle.

Abstract: The present invention is an assembly layer for a flexible device. Within a temperature range of between about ?30° C. to about 90° C., the assembly layer has a shear storage modulus at a frequency of 1 Hz that does not exceed about 2 MPa, a shear creep compliance (J) of at least about 6×10?6/Pa measured at 5 seconds with an applied shear stress between about 50 kPa and about 500 kPa, and a strain recovery of at least about 50% at at least one point of applied shear stress within the range of about 5 kPa to about 500 kPa within about 1 minute after removing the applied shear stress.

Abstract: The present invention is an assembly layer for a flexible device. The assembly layer is derived from precursors that include an alkyl(meth)acrylate ester having 1 to 24 carbon atoms in the alkyl group and a free-radical generating initiator. Within a temperature range of between ?30° C. to 90° C., the assembly layer has a shear storage modulus at a frequency of 1 Hz that does not exceed 2 MPa, a shear creep compliance (J) of at least 6×10?6 1/Pa measured at 5 seconds with an applied shear stress between 50 kPa and 500 kPa, and a strain recovery of at least 50% at at least one point of applied shear stress within the range of 5 kPa to 500 kPa within 1 minute after removing the applied shear stress. In a preferred embodiment, the flexible device is a flexible electronic display.

Abstract: Curable adhesive compositions are provided that can be cured using ultraviolet or visible light radiation. These curable adhesive compositions, which contain a curable (meth)acrylate copolymer, have a creep compliance that is less than 5(10?4) inverse Pascals at 25° C., a creep compliance that is greater than 1(10?3) inverse Pascals at 70° C., and a shear storage modulus greater than 40 kiloPascals when measured at 25° C. at a frequency of 1 radian/second.

Abstract: A pattern article comprising a copolymer having polymerized units derived from a cleavable crosslinking monomer, to which a pattern is imparted by the release of incipient acid from a thermal acid generator or photoacid generator. The selective release of the acid provides a pattern of high crosslink density and low crosslink density as result of the incipient acid cleaving a portion of the crosslinks.

Abstract: The disclosure describes a curable composition comprising a) a solute (meth)acryloyl oligomer having a plurality of pendent, ethylenically unsaturated, free-radically polymerizable functional groups and nucleophilic, hydrophilic groups, a Mw of 5 k to 30 k, a Tg<20° C.; b) a solvent monomer component; a chain transfer agent, and a photoinitiator. The curable composition may be used as an adhesive in optical applications.

Abstract: The disclosure describes a curable composition comprising a) a solute (meth) acryloyl oligomer having a plurality of pendent, ethylenically unsaturated, free-radically polymerizable functional groups and nucleophilic, hydrophilic groups, a Mw of 5 k to 30 k. a Tg<20° C.; b) a solvent monomer component; and non-reactive oligomer an a photoinitiator. The curable composition may be used as an adhesive in optical applications.

Abstract: Article comprising a polymeric substrate having a first major surface comprising a plurality of particles (e.g., clay particles, graphite particles, boron nitride particles, carbon particles, molybdenum disulfide particles, bismuth oxychloride particles, and combinations thereof) attached thereto. Articles described herein are useful, for example, for a tamper evident surface.

Abstract: A viscoelastic adhesive composition is provided, wherein at a dispensing temperature of between 35° C. and 120° C., the viscoelastic adhesive composition can be discretely dispensed and has a tan delta of at least 1 as determined by dynamic mechanical analysis at a frequency of 1 Hz and a complex viscosity of less than 5×103 Pascal-sec at a complex viscosity of less than 5×103Pascal-sec at a frequency of about 10 radians s?1. Such adhesives have been found useful in forming optical assemblies for producing display panels used in a variety of electronic devices.