C08F283/12

AQUEOUS DISPERSION OF POLYMERIC COMPOSITE MICROSPHERES

The present invention relates to a composition comprising an aqueous dispersion of polymeric composite microspheres comprising an aqueous dispersion of polymeric composite microspheres that comprise a polysiloxane and a polymer, as defined herein, and a suspension polymerization process for making the composition. The composition is useful for making defect free coatings with a relatively low coefficient of friction.

AQUEOUS DISPERSION OF POLYMERIC COMPOSITE MICROSPHERES

The present invention relates to a composition comprising an aqueous dispersion of polymeric composite microspheres comprising an aqueous dispersion of polymeric composite microspheres that comprise a polysiloxane and a polymer, as defined herein, and a suspension polymerization process for making the composition. The composition is useful for making defect free coatings with a relatively low coefficient of friction.

AQUEOUS DISPERSION OF POLYMERIC COMPOSITE MICROSPHERES

The present invention relates to a composition comprising an aqueous dispersion of polymeric composite microspheres comprising an aqueous dispersion of polymeric composite microspheres that comprise a polysiloxane and a polymer, as defined herein, and a suspension polymerization process for making the composition. The composition is useful for making defect free coatings with a relatively low coefficient of friction.

MOULDABLE, FORMABLE AND CHEMICALLY RESISTANT HARD COAT FOR POLYMER FILM
20220267637 · 2022-08-25 · ·

The invention relates to a UV curable hard-coat for a polymer film, the hard-coat comprising an aliphatic urethane acrylate oligomer, a hexa-functional aliphatic urethane acrylate oligomer a photo-initiator and an organic solvent. The UV curable hard-coat further may comprise a flow modifier. A second aspect of the invention relates to a method for providing a hard-coated polymer film provided with the UV curable hard-coat of any one of the preceding claims. The polymer film is for example polycarbonate film. A further aspect of the invention relates to a hard-coated polymer film provided with the UV curable hard-coat of the invention. An aspect of the invention relates to use of the hard-coated polymer film provided with the UV curable hard-coat according to the invention in the manufacturing of a formed article or object such as a thermo-formed article or object and/or of a moulded article or object such as an injection-moulded article or object, preferably an article or object which comprises the hard-coated polymer film provided with the UV curable hard-coat which is first formed and then back-moulded such as back injection moulded. The invention also relates to an article or an object comprising a polycarbonate film containing a UV curable hard-coat according to the invention, wherein the article or object is manufactured using back injection-moulding or in-mould electronics.

MOULDABLE, FORMABLE AND CHEMICALLY RESISTANT HARD COAT FOR POLYMER FILM
20220267637 · 2022-08-25 · ·

The invention relates to a UV curable hard-coat for a polymer film, the hard-coat comprising an aliphatic urethane acrylate oligomer, a hexa-functional aliphatic urethane acrylate oligomer a photo-initiator and an organic solvent. The UV curable hard-coat further may comprise a flow modifier. A second aspect of the invention relates to a method for providing a hard-coated polymer film provided with the UV curable hard-coat of any one of the preceding claims. The polymer film is for example polycarbonate film. A further aspect of the invention relates to a hard-coated polymer film provided with the UV curable hard-coat of the invention. An aspect of the invention relates to use of the hard-coated polymer film provided with the UV curable hard-coat according to the invention in the manufacturing of a formed article or object such as a thermo-formed article or object and/or of a moulded article or object such as an injection-moulded article or object, preferably an article or object which comprises the hard-coated polymer film provided with the UV curable hard-coat which is first formed and then back-moulded such as back injection moulded. The invention also relates to an article or an object comprising a polycarbonate film containing a UV curable hard-coat according to the invention, wherein the article or object is manufactured using back injection-moulding or in-mould electronics.

Graft copolymer containing polyorganosiloxane, resin composition, molded article, slidability-improving agent, and sliding member

The invention provides a thermoplastic resin composition, which does not substantially compromise color rendering and flame retardance of a thermoplastic resin and has high impact resistance, slidability, and chemical resistance in a wide scope of environmental conditions ranging from low temperature to high temperature. A graft copolymer (G.sub.F2) containing rubber is a graft copolymer containing rubber formed by performing graft polymerization of 1 or more vinyl monomers on a composite rubber containing a polyorganosiloxane (B1) and a polyalkyl (meth)acrylate (B2). The content of a component derived from a silane compound containing a vinyl-based polymerizable group in the polyorganosiloxane (B1) is 1 mass % to 10 mass %. The volume-average particle size of the graft copolymer containing rubber is 300 nm to 2000 nm. The content of the polyorganosiloxane (B1) in the graft copolymer containing rubber is 70 mass % to 98 mass %. An acetone soluble matter is 5.0 mass % or more and 30.0 mass % or less.

Comb-Star Viscosity Modifier and Its Compositions

Described herein is a comb-star poly(siloxane-polyolefin) comprising the reaction product of at least vinyl-terminated macromer and functional-poly(dialkylsiloxanes) comprising 2 or more functional groups, wherein the comb-star poly(siloxane-polyolefin) has the following features: a g′.sub.(vis avg) of less than 0.80; a comb number of 2 or 3 or 4 to 30 or 40 or 50 or 100 or more; and a number average molecular weight (Mn) within the range of from 25,000 g/mole to 500,000 g/mole.

SILICONE WITH MODIFIED SURFACE FOR IMPROVING THE SLIDING AND FRICTIONAL PROPERTIES
20210388166 · 2021-12-16 · ·

A material comprising a silicone, wherein a polymer is arranged on the surface of the silicone, the polymer is characterized by a higher wear resistance than the silicone, and the polymer is attached to the surface of the silicone by non-covalent bonds.

SILICONE WITH MODIFIED SURFACE FOR IMPROVING THE SLIDING AND FRICTIONAL PROPERTIES
20210388166 · 2021-12-16 · ·

A material comprising a silicone, wherein a polymer is arranged on the surface of the silicone, the polymer is characterized by a higher wear resistance than the silicone, and the polymer is attached to the surface of the silicone by non-covalent bonds.

METHOD FOR PREPARING SOLID-STATE PHOTONIC CRYSTAL IPN COMPOSITE FUNCTIONALIZED WITH ENZYME, PHOTONIC CRYSTAL IPN COMPOSITE PREPARED BY THE METHOD AND BIOSENSOR USING THE PHOTONIC CRYSTAL IPN COMPOSITE

The present invention relates to a method for preparing a solid-state photonic crystal IPN composite functionalized with an enzyme, a photonic crystal IPN composite prepared by the method, and a biosensor using the photonic crystal IPN composite. The method of the present invention includes (1) mixing a nonreactive chiral dopant with a reactive nematic mesogen, curing the mixture, and removing the chiral dopant while maintaining a helical structure, to form a solid-state helical photonic crystal structure, (2) infiltrating a PAA hydrogel into the internal space of the photonic crystal structure, followed by curing to form an IPN-structured composite, and (3) immobilizing an enzyme in the IPN-structured composite. The PAA hydrogel is infiltrated into the solid-state helical photonic crystal structure and the enzyme is immobilized such that a pH change caused by the enzymatic reaction induces shrinkage and expansion of the PAA hydrogel, leading to a color change.