The present disclosure relates to a coating composition, comprising a fluoropolymer component in the form of a fluoropolymer micropowder having a weight average molecular weight of from 300,000 g/mol to 400,000 g/mol, a binder resin, a hydroxy-functional silicone resin; and a silicone oil, as well as articles coated with the composition.

A resist underlayer film-forming composition includes: a polysiloxane compound including a first structural unit represented by formula (1); and a solvent. X represents a group represented by formula (2); a is an integer of 1 to 3; R.sup.1 represents a halogen atom, a hydroxy group, or a monovalent organic group having 1 to 20 carbon atoms; and b is an integer of 0 to 2; and a sum of a and b is no greater than 3. R.sup.2 represents a monovalent hydrocarbon group having 1 to 20 carbon atoms; n is 1 or 2; R.sup.3 represents a hydrogen atom or a monovalent organic group having 1 to 20 carbon atoms; L represents a single bond or a divalent linking group; and * denotes a site bonding to the silicon atom in the formula (1). The composition is suitable for lithography with an electron beam or extreme ultraviolet ray.

##STR00001##

The invention relates to a pre-impregnated fibre-reinforced composite material in laminar form, obtained impregnating a fibrous mass with a polymeric binder composition and intended to be subjected to successive forming and complete curing operations to produce a fibre-reinforced composite material. The polymeric binder composition comprises one or more resins chosen in the group consisting of siloxane resins and silsesquioxane resins, and can optionally comprise one or more organic resins. The polymeric binder composition appears as a liquid with viscosity between 55000 and 10000 mPas at temperatures between 50° C. and 70° C. The polymeric binder composition forms a polymeric binder matrix, not cross-linked or only partially cross-linked, that fills the interstices of the fibrous mass. The invention also relates to a method for making said pre-impregnated fibre-reinforced composite material in laminar form. The invention also relates to a manufactured article obtained by hot forming and complete curing of the aforesaid pre-impregnated fibre-reinforced composite material, as well as a method for making said manufactured article.

A composition including a polysiloxane compound (A) containing a structural unit represented by formula (1) and a structural unit represented by formula (2), wherein a siloxane structural unit ratio represented by Q unit/(Q unit+T unit) in all Si structural units is 0.60 or more and less than 1.00, and the solvent (B).

[(R.sup.1).sub.b(R.sup.2).sub.m(OR.sup.3).sub.lSiO.sub.n/2]  (1)

[In the formula, R.sup.1 is a group represented by following formula.]

##STR00001##

[(R.sup.4).sub.pSiO.sub.q/2]  (2)

An object of the present invention is to provide a coating composition capable of forming a coating film which can maintain its appearance and gloss over a long period and which has high film hardness and high flexibility and exhibits excellent adhesion with respect to an epoxy resin anticorrosive coating film. An acrylic polysiloxane resin coating composition of the invention includes (A) a silicone resin, (B) a compound having one or more functional groups capable of undergoing Michael addition reaction with an unsaturated double bond in an acryloyloxy group, and having one or more alkoxy groups bonded to silicon, (C) a trifunctional or polyfunctional aliphatic urethane acrylate oligomer having a cyclic structure, and (D) a bifunctional acrylate monomer having no ether structures (except an ether structure in an acryloyloxy group) and no aromatic rings, the mass ratio of the total amount of (A) and (B) to the total amount of any acrylate oligomer(s) and any acrylate monomer(s) being 40:60 to 70:30.

A siloxane polymer comprising polysiloxane, silphenylene, isocyanuric acid, and polyether skeletons in a backbone and having an epoxy group in a side chain is provided. A photosensitive resin composition comprising the siloxane polymer and a photoacid generator is coated to form a film which can be patterned using radiation of widely varying wavelength. The patterned film has high transparency and light resistance.

The present invention provides a silicone skeleton-containing polymer including a silicone skeleton shown by the following formula (1) and having a weight average molecular weight of 3,000 to 500,000.

##STR00001##

This can provide a silicone skeleton-containing polymer that can easily form a fine pattern with a large film thickness, and can form a cured material layer (cured film) that is excellent in various film properties such as crack resistance and adhesion properties to a substrate, electronic parts, and a semiconductor device, particularly a base material used for a circuit board, and has high reliability as a film to protect electric and electronic parts and a film for bonding substrates; and a photo-curable resin composition that contains the polymer, a photo-curable dry film thereof, a laminate using these materials, and a patterning process.

The invention provides a lighting device (10) comprising a light source (100) configured to generate light source light (101) and a light converter element (200), wherein the light converter element (200) comprises a light transmissive matrix (205), wherein the light transmissive matrix (205) comprises: (i) a first luminescent material (210) configured to convert at least part of one or more of (a) the light source light (101) and (b) optionally a second luminescent material light (221) from an optional second luminescent material (220) into a first luminescent material light (211); and (ii) a thermo-responsive liquid crystalline compound (250); wherein the light transmissive matrix (205) is configured in thermal contact with the light source (100), and wherein the lighting device (10) is further configured to provide lighting device light (11) comprising said light source light (101), said first luminescent material light (210) and optionally said second luminescent material light (221), and wherein said light converter element is arranged for changing one or more of the color and color temperature of the lighting device light with the electrical power provided to the light source.

A curable organosilicon resin composition includes; (A) an organopolysiloxane having a resin structure containing 10 to 60 mol % of an R.sup.1SiO.sub.3/2 unit, 30 to 80 mol % of an (R.sup.2).sub.2SiO.sub.2/2 unit, and 1 to 30 mol % of an (R.sup.3).sub.3SiO.sub.1/2 unit. At least a part of the (R.sup.2).sub.2SiO.sub.2/2 unit is in continuous repeating units with the average number of the repeating units being 3 to 80. The organopolysiloxane has a weight average molecular weight of 5,000 to 50,000; the amount of the hydroxy groups bonded to silicon atoms is 0.001 to 1.0 mol/100 g; and the amount of the alkoxy groups, each having 1 to 10 carbon atoms, bonded to silicon atoms is 1.0 mol/100 g or less. A curable organosilicon resin composition has excellent workability, can give a cured product rapidly, and can make the cured product excellent in mechanical properties, heat resistance, crack resistance, and adhesive property, the surface tackiness being suppressed.

An eight-arm star-shaped thermoplastic elastomer copolymer and a preparation method therefor; a polystyrene-polyisoprene lithium compound and a polystyrene/diphenylethylene-polyisoprene lithium compound are synthesized by using active anionic polymerization, and the compounds are used for a coupling reaction with octenyl polyhedral oligomeric silasesquioxane to obtain the copolymer. The method has the characteristics of convenient operation, high reaction efficiency, mild reaction conditions, and few side reactions. The structure and molecular weight of the prepared eight-arm star-shaped polymer are controllable, and the molecular weight distribution is narrow. A polymer segment obtained by the copolymerization of diphenylethylene (DPE) and styrene (St) is used as a hard segment, which enables the eight-arm star-shaped thermoplastic elastomer copolymer to have more outstanding mechanical properties. At the same time, a polymer segment composed of DPE and St units has a higher glass transition temperature than polystyrene, which increases the upper limit usage temperature of the eight-arm star-shaped copolymer.