摘要:
Surface-modified zirconia nanoparticles include zirconia nanoparticles and surface-modifying ligands attached to the zirconia nanoparticles. The ligand includes a hydroxamate functionality, and either a reactive group or an oligomeric group. Reactive groups include chain transfer groups or photoinitiator groups. Oligomeric groups include poly(meth)acrylate or poly(meth)acrylamide groups. Articles can be prepared that include the surface-modified zirconia nanoparticles in an organic matrix.
摘要:
Presently described is an adhesive composition comprising at least one isobutylene polymer and an alkyl amine adhesion promoting agent. The alkyl amine is unreactive with respect to the isobutylene polymer. In favored embodiments, the alkyl amine adhesion promoting agent comprises an alkyl group having 6-24 carbon atoms. Further, the isobutylene polymer is a non-halogenated copolymer or homopolymer. Also described are adhesive articles a pressure sensitive adhesive, as described herein on a backing. The adhesive is particularly suitable for articles intended for use in a wet environment such as kitchen or bath articles.
摘要:
Epoxy reactive liquid modifiers include acrylate functionalized compounds, acrylamide functionalized compounds, oxalic amide functionalized compounds, actoacetoxy functionalized urethanes and acetoacetoxy functionalized polyalkenes. The reactive liquid modifiers are incorporated into epoxy resin compositions comprising a curable epoxy resin, an amine curing agent, and the reactive liquid modifier, wherein the reactive liquid modifier is polymerized to form at least one of an interpenetrating polymer network and a semi-interpenetrating polymer network with the curable epoxy resin.
摘要:
An absorbent dressing is described which comprises a crosslinked hydrophilic gel absorbent layer comprising a first component polymer comprising a plurality of polymerized monomer units having pendent hydrophilic groups, and pendent Michael donor groups; and a crosslinking agent comprising at least two Michael acceptor groups.
摘要:
An adhesive (co)polymers comprising: a) an isobutylene copolymer having pendent anhydride groups, b) a polyamine photobase generator and c) optionally a tackifier is described.
摘要:
Compositions, particularly for forming dental products, having a hardenable self-supporting structure with sufficient malleability to be subsequently customized into a second shape and then hardened, and methods.
摘要:
A curable composition is described comprising a Michael donor component, a polyacryl component, and 1) an ethylenically unsaturated monomer having a reactive azlactone functional group, or 2) an ethylenically unsaturated monomer having a reactive ring-opened azlactone functional group. A telechelic polymer that is the reaction product of these components is also described.
摘要:
Compositions, particularly for forming dental products, having a hardenable self-supporting structure with sufficient malleability to be subsequently customized into a second shape and then hardened, and methods.
摘要:
A process for preparing a polarizer is described whereby an article comprising an oriented, vinylalcohol polymer film layer, and an acid donor layer comprising a photoacid generator, is exposed to radiant energy at a temperature sufficient to effect a partial dehydration of the vinylalcohol polymer to a vinylalcohol/poly(acetylene) copolymer.
摘要:
Chain transfer agents for controlled radical polymerizations (RAFT) are described. The chain transfer agents have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers.