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: A curable dental composition comprising an addition-fragmentation agent and a curable dental resin is disclosed.

Abstract: Novel stress-reducing crosslinking oligomers that have application in dental restoratives, thin films, hardcoats, composites, adhesives, and other uses subject to stress reduction are described. The addition-fragmentation process of crosslinking results in a chain-transfer event that provides novel polymers that may be further functionalized. In addition, the addition-fragmentation oligomer comprises pendent functional groups that bond to a substrate by forming an ionic or covalent bond, or etch the substrate by chemically removing some material from the substrate.

Abstract: The disclosure describes a curable composition comprising a first oligomer having a plurality of polymerizable groups; a second component comprising alkylene oxide repeat units and terminal polymerizable groups, a solvent monomer component; and a photoinitiator. The curable composition may be used as an adhesive in optical applications.

Abstract: A method of making an adhesive is provided, including obtaining an actinic radiation-polymerizable adhesive precursor composition disposed against a surface of an actinic radiation-transparent substrate and irradiating a first portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate for a first irradiation dosage. The method further includes irradiating a second portion of the actinic radiation-polymerizable adhesive precursor composition through the actinic radiation-transparent substrate for a second irradiation dosage. The first portion and the second portion are adjacent to or overlapping with each other and the first irradiation dosage and the second irradiation dosage are not the same. The method forms an integral adhesive having a variable thickness in an axis normal to the surface of the actinic radiation-transparent substrate.

Abstract: Addition-fragmentation agents of the formula are disclosed: wherein R1, R2 and R3 are each independently Z-Q-, a (hetero)alkyl group or a (hetero)aryl group with the proviso that at least one of R1, R2 and R3 is Zm-Q-, Q is a linking group have a valence of m+1; Z is an ethylenically unsaturated polymerizable group, m is 1 to 6; each X1 is independently —O— or —NR4—, where R4 is H or C1-C4 alkyl, and n is 0 or 1.

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 photolnitiator. 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; a chain transfer agent, and a photoinitiator. The curable composition may be used as an adhesive in optical applications.

Abstract: A curable dental composition comprising an addition-fragmentation agent and a curable dental resin is disclosed.

Abstract: Addition-fragmentation agents of the formula are disclosed having the following functional groups: 1) a labile addition-fragmentation group that can cleave and reform to relieve strain, 2) at least two surface-binding functional groups that associate with the surface of a substrate.

Abstract: Addition-fragmentation agents of the formula are disclosed: wherein R1, R2 and R3 are each independently Z-Q-, a (hetero)alkyl group or a (hetero)aryl group with the proviso that at least one of R1, R2 and R3 is Zm-Q-, Q is a linking group have a valence of m+1; Z is an ethylenically unsaturated polymerizable group, m is 1 to 6; each X1 is independently —O— or —NR4—, where R4 is H or C1-C4 alkyl, and n is 0 or 1.

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 a photoinitiator. The curable composition may be used as an adhesive in optical applications.

Abstract: The present disclosure provides an ionically crosslinkable composition comprising a (meth)acrylate copolymer component having pendant acid functional groups and pendant photobase functional groups. On exposure to light, the pendant photobase group photolyzes to provide a pendant amine group, that ionically crosslinks the copolymer.

Abstract: The present disclosure provides an ionically crosslinkable composition comprising a (meth)acrylate copolymer component having pendant acid functional groups and pendant photobase functional groups. On exposure to light, the pendant photobase group photolyzes to provide a pendant amine group, that ionically crosslinks the copolymer.

Abstract: A curable dental composition comprising an addition-fragmentation agent and a curable dental resin is disclosed.

Abstract: The present disclosure provides an crosslinkable composition comprising a (meth)acrylate copolymer component having pendant photobase functional groups and a crosslinking agent that has amine-reactive functional groups. On exposure to light, the pendant photobase group photolyzes to provide a pendant amine group, that crosslinks the copolymer.

Abstract: The disclosure describes a curable composition comprising a first oligomer having a plurality of polymerizable groups; a second component comprising alkylene oxide repeat units and terminal polymerizable groups, a solvent monomer component; and a photoinitiator. The curable composition may be used as an adhesive in optical applications.

Abstract: A curable dental composition comprising an addition-fragmentation agent and a curable dental resin is disclosed.

Abstract: Addition-fragmentation agents of the formula are disclosed having the following functional groups: 1) a labile addition-fragmentation group that can cleave and reform to relieve strain, 2) at least two surface-binding functional groups that associate with the surface of a substrate.

Abstract: The present disclosure provides an crosslinkable composition comprising a (meth)acrylate copolymer component having pendant photobase functional groups and a crosslinking agent that has amine-reactive functional groups. On exposure to light, the pendant photobase group photolyzes to provide a pendant amine group, that crosslinks the copolymer.