摘要:
A UV-shielding coating composition comprises (A) a dispersion in a dispersing medium of composite zinc oxide nanoparticles which are obtained by coating surfaces of zinc oxide nanoparticles with an oxide or hydroxide of Al, Si, Zr and Sn, the dispersion having a photocatalytic degradability of up to 25%, (B) a vinyl copolymer obtained from copolymerization of an alkoxysilyl-containing vinyl monomer, a UV-absorbing vinyl monomer, and another monomer, and (C) a solvent. The composition is transparent to visible light, UV-shielding, mar resistant, weatherable, and durable.
摘要:
A silicone coating composition comprising (A) a silicone resin resulting from (co)hydrolytic condensation of an alkoxysilane or a partial hydrolytic condensate thereof, (B) an aromatic-free compound for curing the silicone resin, and (C) a solvent remains stable during shelf storage. It is applied and heat cured to a plastic substrate to form a protective coat having a high hardness, mar resistance, adhesion, toughness and crack resistance.
摘要:
An organic resin laminate comprising an organic resin substrate and a multilayer coating system thereon has UV-shielding property and high mar resistance. The multilayer coating system includes an outermost layer (I) resulting from plasma polymerization of an organosilicon compound, a lower layer (II) of a silicone coating composition comprising composite oxide nanoparticle dispersion, silicone resin, curing catalyst, and solvent, and optionally a bottom layer (III) of acrylic resin.
摘要:
A primer composition for a polysiloxane hard coating is provided. This primer composition comprises (A) a vinyl polymer having a hydrolyzable silyl group and/or SiOH group and an organic UV absorbing group bonded to its side chain, and (B) fine silica particles dispersed in an organic solvent, and the primer layer formed after coating and curing has a coefficient of linear expansion of up to 150×10−6/° C.
摘要:
Silicone coating compositions comprising a silicone resin which is obtained by cohydrolytic condensation of (A) an organosilicon compound, and (B) an alkoxysilane and/or (C) a fluorine-containing organosilicon compound form mar resistant surface-protecting films having a hardness, flexibility, crack resistance and weather resistance.
摘要:
An organic resin laminate comprising an organic resin substrate and a multilayer coating system thereon has weather resistance and mar resistance. The multilayer coating system includes an outermost layer (I) which is a hard film resulting from plasma polymerization of an organosilicon compound and an intermediate layer (II) which is a cured film of a composite coating composition (2) comprising inorganic oxide nanoparticle and vinyl copolymer.
摘要:
An organic resin laminate comprising an organic resin substrate and a multilayer coating system thereon has weather resistance and mar resistance. The multilayer coating system includes an outermost layer (I) which is a hard film resulting from plasma polymerization of an organosilicon compound and an intermediate layer (II) which is a cured film of a composite coating composition (2) comprising inorganic oxide nanoparticle and vinyl copolymer.
摘要:
A UV-shielding silicone coating composition comprises (A) a dispersion in a dispersing medium of composite zinc oxide nanoparticles which are obtained by coating zinc oxide nanoparticles with an oxide or hydroxide of Al, Si, Zr or Sn, the dispersion having a photocatalytic degradability of up to 25%, (B) a silicone resin, (C) a curing catalyst, and (D) a solvent, the solids content of composite zinc oxide nanoparticle dispersion (A) being 1 to 50% by weight based on silicone resin (B). The composition is transparent to visible light, mar resistant, UV-shielding, weatherable, and durable.
摘要:
An antibacterial/antifungal inorganic matter is composited with wood by impregnating wood with a solution containing a silicon alkoxide and an antibacterial/antifungal organic silicon compound having a hydrolyzable alkoxysilyl group, and subjecting the silicon compounds within the cell walls (inter- and intracellular) spaces to hydrolysis at various temperatures and polycondensation. The same is prepared by treating wood with a siloxane oligomer and curing the oligomer. The antibacterial/antifungal component is prevented from being leached out.
摘要:
The present invention relates to an acoustic reproducing apparatus which is suitable particularly for listening to reproduced sound with noise through an open-air-type head phone. A sound leakage frequency band, when a head phone is loaded is measured in advance, and operation of a filter attenuating that sound leakage frequency band is changed-over. Thereby the sound leakage from the head phone to the outside in the loaded state is controlled. Also, a noise frequency characteristic is measured in advance, the low frequency band is intensified so as to correspond to that characteristic, and operation of the filter for attenuating the high frequency band containing the above-mentioned sound leakage frequency band is controlled to be changed-over.