摘要:
A hardcoat composition comprising (A) a hydrolytic condensate of a hydrolyzable silicon compound of formula: R1aSiX(4-a) with at least 1 mole of water per mole of hydrolyzable group X, (B) a metal oxide, (C) a siloxane resin of formula: R2bSi(OR3)c(OH)dO(4-b-c-d)/2 and having a Mw of at least 2,000, which is solid at a temperature of not higher than 40° C., and (D) a curing catalyst forms a hardcoat film having satisfactory hardness, transparency and adhesion as well as improved weather resistance and presenting a surface that is repellent to marker ink.
摘要:
A composition comprising (1) 0.1-50 parts by weight of the reaction product of a hydroxyl group-containing benzophenone compound with a silane and/or a hydrolyzate thereof and (2) 100 parts by weight of a silane compound and/or a hydrolyzate thereof is applied to a polycarbonate sheet to form a protective coating having mar and weather resistance. A composition comprising the reaction product of a hydroxyl group-containing benzophenone compound with a silane and/or a hydrolyzate thereof is useful for undercoating.
摘要:
A coating composition comprising the reaction product of a benzotriazole compound having a polymerizable vinyl group and a hydroxyl group with a silane compound and/or a (partial) hydrolyzate thereof is applied to plastic substrates, typically polycarbonate resin substrates to form transparent coatings having improved mar, weather and chemical resistance.
摘要:
A coating composition comprising (A) 100 parts by weight of an organosilicon compound having a hydrolyzable group-bearing silyl group, and (B) 0.1-50 parts by weight of a hydrolytic condensate of a reaction product and/or a mixture of a &bgr;-diketone with a mixture (b-1) of a titanium tetraalkoxide and an alkoxide of Zr, Fe, Al, Zn, In, Cu, Si, Sn, W or Mg. The coating composition is applied to plastic articles, especially of polycarbonate, to endow them with superior transparency, mar resistance, weather resistance, and chemical resistance. The coated articles find use in outdoor applications as windows and windshields on vehicles and building windows.
摘要:
A coating composition comprising the reaction product of a benzotriazole compound having a polymerizable vinyl group and a hydroxyl group with a silane compound and/or a (partial) hydrolyzate thereof is applied to plastic substrates, typically polycarbonate resin substrates to form transparent coatings having improved mar, weather and chemical resistance.
摘要:
A coating composition comprising (1) a partial condensate obtained by subjecting a silane compound of RmSiX4−m to hydrolysis and partial condensation with a sufficient amount of water to meet a molar ratio: 1.2≦H2O/Si—X≦10, (2) a vinyl polymer having UV absorbing groups and hydrophilic groups which is dissolvable or dispersible in a water-containing hydrophilic solvent, and (3) a hydrophilic organic solvent can form a hard protective coat having improved weather resistance.
摘要翻译:一种涂料组合物,其包含(1)通过使RmSiX4-m的硅烷化合物与足够量的水进行水解和部分缩合得到的部分缩合物,以满足摩尔比:1.2 <= H 2 O / Si-X 10 = 2)具有UV吸收基团和亲水性基团的乙烯基聚合物,其可溶于或分散于含水亲水性溶剂中,和(3)亲水性有机溶剂可以形成具有改善耐候性的硬保护涂层。
摘要:
A primer composition comprises (A) a vinyl copolymer obtained through copolymerization of (a-1) a UV-absorbing vinyl monomer, (a-2) an alkoxysilyl group-containing vinyl monomer, and (a-3) another copolymerizable monomer, (B) a curing agent, and (C) a thermoplastic vinyl resin having a Tg of at least 80° C. Polycarbonate resin articles, when covered with an undercoat of the primer composition and an overcoat of an organopolysiloxane composition, exhibit improved transparency, mar resistance, weather resistance, and chemical resistance and find outdoor use as vehicle and building windows and windshields.
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 curable composition comprises (A) an organic/inorganic composite in which a hydrolyzable silyl group and/or SiOH group-containing polysiloxane is bonded to a vinyl polymer through a Si—C bond, and (B) an organic UV absorber having a molecular weight of at least 500 and a weight retentivity of at least 95% when held at 150° C. for 24 hours in an open state. The curable composition is coated and cured to an article, whereby the article is endowed with satisfactory weathering resistance while minimizing coloration or degradation.