摘要:
A magnetic recording medium is described comprising a non-magnetic support layer, a magnetic layer and at least one layer of a high-molecular weight boron containing compound of the formula: ##STR1##
摘要:
A lubricating composition comprises an oil of lubricating viscosity, a metal-free pre-ceramic polymer and one or more co-additives. The metal-free pre-ceramic polymer comprises a plurality of repeat units which do not contain oxygen. The pre-ceramic polymers provide the lubricating oil composition with antiwear properties. Also described is a method of lubricating an internal combustion engine and the use of a lubricating oil composition containing a pre-ceramic polymers to inhibit wear in an internal combustion engine.
摘要:
Liquid phase liquid crystal polymers (LCPs) are disclosed having a composition and structure that can be varied to provide desirable properties. The liquid phase LCPs have polyiminoborane, polyaminoborane, and/or borozine polymer backbone molecules, with silicon and/or phosphorous side chain molecules linked to the backbone that provide a degree of alignment assigned an Order Parameter (S), defined as S=⅓[3 cos2 θ−1], where θ is the angle between the axis of an LCP molecule and the vertical direction. The inventive liquid phase LCPs have an average Order Parameter in the range of about 0.2 to about 0.99 and are applicable to a number of rinse, coolant, lubricant, sterilization and other protectant processes.
摘要翻译:公开了液相液晶聚合物(LCP),其具有可以改变以提供所需性质的组成和结构。 液相LCP具有聚亚氨基硼烷,聚氨基硼烷和/或硼嗪聚合物主链分子,其中连接至骨架的硅和/或磷侧链分子提供一定程度的对准,其定义为S = 1 / 3 [3 cos <2θ-1],其中θ是LCP分子的轴线与垂直方向之间的角度。 本发明的液相LCP具有约0.2至约0.99范围内的平均订单参数,并且可应用于多种冲洗,冷却剂,润滑剂,灭菌和其它保护剂方法。
摘要:
A comb copolymer A2 including at least two boronic ester functions, the copolymer including a main chain and side chains, and at least one portion of the side chains of the copolymer A2 made of oligomers. Also, a composition resulting from mixing at least one polydiol compound A1 and a copolymer A2. The compositions exhibit very varied rheological properties depending on the proportion of the compounds A1 and A2 used. Also, a lubricant composition including such a mixture and at least one lubricating oil. Also, use of this composition to lubricate a mechanical part.
摘要:
Hydraulic fluid compositions having improved properties to rubbers are formed from (A) a nitrogen-atom-containing borate ester derived from an oxyalkylated heterocyclic or alicyclic amine and (B) another borate ester and/or polyoxyalkylene compound.
摘要:
Hydraulic fluids having improved wet equilibrium boiling points and rubber swell have been formulated from mixed glycol etherglycol boric acid esters.