Abstract:
A grease composition for use as a cable filling material which contains about 25 to 75 parts by weight of castor oil or a ricinoleate polyol, about 13 to 71 parts by weight of a hydroxy-terminated polymer of polymerized castor oil or the reaction product of a polyisocyanate compound and castor oil or a ricinoleate polyol, and about 4 to 12 parts by weight of colloidal particles such as silica, clay or mixtures thereof. Optionally, an antioxidant component can be added to impart high temperature resistance, a bleed inhibitor, typically of a rubber component, can be added to improve bleed resistance, a water blocking agent of a superabsorbent compound can be added to reduce water transmission, microspheres can be added to reduce the weight of the formulation, and/or conventional additives such as fungicides, bacteriocides etc. can be included. The invention also relates to an article of manufacture such as a cable having a sheath surrounding a plurality of optical fibers therein, with one of the grease compositions of the invention located therein.
Abstract:
Silicone grease compositions are prepared by blending a thickening agent with a liquified crosslinked organosiloxane gel produced using a platinum-catalyzed hydrosilylation reaction. The gel is liquified by application of a shearing force to the crosslinked gel. The shearing force can be applied prior to and/or during blending of the gel with the thickener.
Abstract:
An article comprises a substrate; a coating comprising a carbon composite; and a binding layer disposed between the substrate and the coating. The carbon composite comprises carbon and a binder containing one or more of the following: SiO2; Si; B; B2O3; a metal; or an alloy of the metal; and the metal comprises one or more of the following: aluminum; copper; titanium; nickel; tungsten; chromium; iron; manganese; zirconium; hafnium; vanadium; niobium; molybdenum; tin; bismuth; antimony; lead; cadmium; or selenium.
Abstract:
The invention relates to a composition for protection from scale and as a lubricant for the hot processing of metals, consisting of a mixture of finely pulverulent materials, wherein the mixture contains at least the following constituents: (a) 0 to 15% by weight secondary or tertiary calcium phosphate compound, hydroxyl apatite or a mixture thereof, (b) 0.1 to 35% by weight of fatty acid, fatty acid salt or a mixture thereof, (c) 1 to 90% by weight ground boron silicate glass, which contains Na, B, Si and Al in the following weight fractions, expressed by their respective oxides, in relation to the boron silicate glass: 1 to 30% by weight Na 2 O, 2 to 70% by weight B 2 O 3 , 10 to 70% by weight SiO 2 and 0 to 10% by weight Al 2 O 3 , (d) 9 to 85% by weight condensed alkali phosphates, (e) boric acid, boric acid salt or a mixture thereof in an amount corresponding to a boron content, expressed by the oxide, of 0 to 3.2% by weight B 2 O3, (f) 0 to 10% by weight graphite, the mixture having an average particle size D50 of ≤ 300 µm.
Abstract translation:本发明涉及一种防垢和用作金属热加工润滑剂的组合物,该组合物由细粉状物质的混合物组成,其中该混合物至少含有以下组分:(a)0-15重量%二级 或磷酸三钙化合物,羟基磷灰石或其混合物,(b)0.1至35重量%的脂肪酸,脂肪酸盐或其混合物,(c)1至90重量%的磨碎的硼硅酸盐玻璃,其含有 Na,B,Si和Al,按其各自的氧化物表示,相对于硼硅酸盐玻璃:1-30重量%Na 2 O,2-70重量%B 2 O 3,10-70重量% 的SiO 2和0-10重量%的Al 2 O 3,(d)9至85重量%的缩合碱金属磷酸盐,(e)相当于硼含量的硼酸,硼酸盐或其混合物, 由氧化物表示,0-3.2重量%B 2 O 3,(f)0-10重量%石墨,该混合物具有 平均粒径D50≤300μm。
Abstract:
The present invention provides an anti-seizure agent for hot steel working comprising: an inorganic component as a first component; sodium hydroxide as a second component; water-soluble resins and/or water-soluble surfactants as a third component; and water, wherein, to the mass of the sum of the first component, the second component, and the third component as 100 mass %, the anti-seizure agent contains: 96.5 mass % or more and 99.98 mass % or less of the first component; 0.01 mass % or more and 2. 0 mass % or less of the second component; and 0.01 mass % or more and 1.5 mass % or less of the third component, and the inorganic component is one or more selected from a group consisting of Al 2 O 3 , SiO 2 , CaO, B 2 O 3 , K 2 O, and Na 2 O. This anti-seizure agent for hot steel working exhibits excellent wettability and surface firm-adherability to the steel; moreover, the coating layer formed after application solidly adheres to the steel and does not come off in the environment of both cold and hot working.