摘要:
A silicone MQ resin based composition provides the oil industry with Fluid Loss Control (FLC) additives for water based drilling muds which are non-damaging. The composition is capable of achieving zero fluid seepage through filter cake, and a short build time for the initial filter cake, while not reducing the return flow of oil from producing formations. The composition is stable in saturated salt at 120° C. and elevated pressures. The composition comprises solid particles of silicone resin with a glass transition temperature more than 70° C., and it contains solid particles of silicone resin with a particle size distribution in which ( ) at least 90 volume percent of solid particles of silicone resin have an average major axis diameter of 40 μm or less than 40 μm, and (ii) at least 10 volume percent of solid particles of silicone resin have an average major axis diameter of 2 μm or less.
摘要:
A method of restoring electrical distribution cafes that have lowered performance due to treeing is carried out by (i) supplying the interstices of stranded aluminum conductor portions of such cafes with a restoration fluid comprising an alkoxysilane or mixture of alkoxysilanes selected from aromatic functional alkoxysilanes, alkylalkoxysilanes, amino functional alkoxysilanes, epoxy functional alkoxysilanes, fluoro functional alkoxysilanes, vinyl functional alkoxysilanes, or methacrylate functional alkoxysilanes; and (ii) adding a sulfidosilane, a mercapto functional alkoxysilane, a phosphonated silane, or mixtures thereof, to the restoration fluid to improve the corrosion resistance of the aluminum, as it comes into contact with corrosive agents at elevated temperatures.
摘要:
MQ-T propyl siloxane resins comprising (R13SiO1/2)a, (R22SiO2/2)b, (R3SiO3/2)c, and (SiO4/2)d units, where at least 40 mole % of the R3 groups are propyl are disclosed. A method of preparing such siloxane resins by reacting a MQ siloxane resin with a T propyl siloxane resin is also disclosed. These siloxane resins are useful in a variety of personal, household, and medical care applications, and in particular, as a resin additive in pigmented cosmetic formulations.