Abstract:
A composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a thioether-substituted ligand.
Abstract:
A composite particle that includes: a fluorescent semiconductor core/shell nanoparticle (preferably, nanocrystal); and a thiol-substituted silicone ligand.
Abstract:
Described herein is a melt-processible polymer composition comprising: a non-fluorinated melt-processible polymer; and a fluorine-containing polymer comprising an end-group having a structures from group consisting of: and combinations thereof; wherein X1, X2, and X3 are each independently selected from H, F, Cl, a C1 to C4 alkyl group, and a C1 to C4 fluorinated alkyl group; R7 is a linking group comprising at least 2 or more catenary atoms; and Z1 and Z2 are independently selected from F, CF3, and a perfluoroalkyl group.
Abstract:
A composition of matter that includes: an aliphatic polyester; at least 2 wt-% of an unreacted epoxidized fatty ester, wherein the epoxidized fatty ester has greater than 4.7 wt-% oxirane oxygen, based on the total weight of the epoxidized fatty ester; and greater than 0 and up to 10 wt-% of a shrink reduction additive; wherein the aliphatic polyester, epoxidized fatty ester, and shrink reduction additive form a mixture; and wherein the weight percentages, other than the weight percentage of the oxirane oxygen, are based on the total weight of the mixture.
Abstract:
Provided is fluoroalkyl silicone of the formula (I): wherein each R1 is independently an alkyl or aryl; Rf is a perfluoroalkyl group, optionally substituted by one or more in-chain —O-, —S- or —NRf1-heteroatoms, where Rf1 is a perfluoroalkyl preferably a C1-C6 perfluoroalkyl; R3 is —H, —OR4; where R4 is a C1-C4 alkyl n is 0 to 2000; m may be zero; p may be zero, n+ m+ p is at least one; q is at least 3; R5 is H, alkyl, aryl-(CH2)n—CF2CHF—O—Rf; or R3; wherein the fluoroalkyl silicone has at least one fluorinated group of the formula (CH2)q—O—CF2CHF—O—Rf.
Abstract:
The invention features a coating composition that comprises a non-urethane acrylate or methacrylate compound in combination with a fluorochemical. Typically, the non-urethane (meth)acrylate is an aliphatic or aromatic (meth)acrylate compound and the fluorochemical typically comprises a monofunctional (per)fluoropolyether (meth)acrylate compound. The coating compositions can provide a protective topcoat layer to a variety of substrates, including wood and vinyl.
Abstract:
Presently described are articles, such as optical displays and protective films, comprising a (e.g. light transmissive) substrate having a surface layer comprising the reaction product of a mixture comprising a non-fluorinated binder precursor (e.g. of a hardcoat composition) and at least one polymerizable perfluoropolyether polymer. The resulting cured surface layer can advantageously exhibit low lint attraction in combination with low surface energy. Also described are one-step and two-step methods of synthesizing perfluoropolyether polymers having polymerizable ethylenically unsaturated groups.
Abstract:
A photocurable composition comprising a photoresist component, and a perfluoropolyether silane is disclosed. The composition enables easier release of phototool from a photoresist.
Abstract:
A photocurable composition comprising a photoresist component, and a perfluoropolyether silane is disclosed. The composition enables easier release of phototool from a photoresist.
Abstract:
Curable antifouling compositions include fluorinated polymers that contain a poly(hexafluoropropylene oxide) segment, an ethylenically-unsaturated group, a poly(ethylene oxide) segment, and a free-radical initiator. The curable antifouling compositions can be coated on a surface of a substrate, and at least partially cured to provide an article with antifouling properties.