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US 2023/0159796 A1Published application
Post-Polymerization Functionalization of Pendant Functional Groups
AssigneeAvery Dennison Corporation
InventorsEric L. BARTHOLOMEW, William BOTTORF, Kyle R. HEIMBACH, Brandon S. MILLER, Michael T. WATERMAN, Michael ZAJACZKOWSKI
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Abstract
Modification of functional groups along a polymer backbone to render the groups activatable upon exposure to actinic radiation is described. The polymers are typically controlled architecture polymers. Also described are adhesives containing the modified architectured polymers and related methods of use.
Claims35
A composition comprising:
- a precursor and a reacting agent,
- the precursor comprising at least one acrylic block copolymer, the at least one acrylic block copolymer comprising
- a first reactive segment of controlled molecular weight and position that comprises at least one monomer having a functional group selected from the group consisting of a self-reactive functional group, a reactive functional group, a non-reactive functional group, and combinations thereof;
- and
- a second segment of controlled molecular weight and position that includes at least one monomer having a functional group selected from the group consisting of a reactive functional group, a non-reactive functional group, and combinations thereof;
- wherein at least one of the functional groups of the at least one acrylic block copolymer can undergo a post-polymerization functionalization reaction with the reacting agent to make the at least one acrylic block copolymer crosslinkable upon exposure to an actinic radiation,
- wherein the at least one acrylic block copolymer does not contain ethylenic unsaturation.
4 more elements
Dependencies are inferred from the claim text.