摘要:
A non-aqueous electrolytic solution is provided comprising a non-aqueous solvent, an electrolyte salt, and a siloxane-modified polyoxyalkylene compound having (poly)organosiloxane structures at both ends of polyoxyalkylene. A secondary battery using the same has improved temperature characteristics and high-output characteristics.
摘要:
A process for preparing an urethane compound for medical instruments, characterized by reacting a hydroxyl compound (A) with an isocyanate compound (B) in the absence of a catalyst or in the presence of a reaction catalyst other than an organic tin compound to give an urethane compound (I). According to the process, the urethane compound showing high safety can be easily prepared, in particular, while molecular weight of the compound is controlled.
摘要:
Water-soluble organic silicon compounds are prepared by effecting co-hydrolysis of (A) 1-30 parts of an alkyltrialkoxysilane of R.sup.1 Si(OR.sup.2).sub.3 or a partial hydrolyzate thereof, (B) 70-90 parts of an alkoxy-containing siloxane of R.sup.3.sub.a (OR.sup.2).sub.b SiO.sub.(4-a-b)/2, and (C) 1-20 parts of an amino-containing alkoxysilane of R.sup.4 R.sup.5 NR.sup.6 --SiR.sup.7.sub.n (OR.sup.2).sub.3-n or a partial hydrolyzate thereof in the presence of an organic or inorganic acid. R.sup.1 is a C.sub.7 -C.sub.18 alkyl group, R.sup.2 is a C.sub.1 -C.sub.4 alkyl group, R.sup.3 is a C.sub.1 -C.sub.6 alkyl group, R.sup.4 and R.sup.5 are a hydrogen atom, C.sub.1 -C.sub.15 alkyl or aminoalkyl group, R.sup.6 is a divalent C.sub.1 -C.sub.18 hydrocarbon group, and R.sup.7 is a C.sub.1 -C.sub.4 alkyl group. Letters a and b are 0.75.ltoreq.a.ltoreq.1.5, 0.2.ltoreq.b.ltoreq.2, and 0.95
摘要翻译:水溶性有机硅化合物是通过(A)1-30份的R 1 Si(OR 2)3的烷基三烷氧基硅烷或其部分水解产物,(B)70-90份含烷氧基的硅氧烷 R3a(OR2)bSiO(4-ab)/ 2和(C)在有机或无机存在下,将1-20份R4R5NR6-SiR7n(OR2)3-n的氨基烷氧基硅烷或其部分水解产物 酸。 R1是C7-C18烷基,R2是C1-C4烷基,R3是C1-C6烷基,R4和R5是氢原子,C1-C15烷基或氨基烷基,R6是二价C1-C18 烃基,R 7为C 1〜C 4烷基。 字母a和b为0.75 = a = 1.5,0.2 b = 2和0.95
摘要:
A highly oxygen-permeable heat-resistant material consisting essentially of a polymer obtained by polymerizing a polymerizable component containing a silicon-containing stilbene derivative of the formula (I): ##STR1## wherein each of R.sup.1 and R.sup.2 which are independent of each other, is a hydrogen atom or a group of the formula (II):--Si.sub.p O.sub.p-1 (CH.sub.3).sub.2p+1 (II)wherein p is an integer of from 1 to 8, provided that at least one of R.sup.1 and R.sup.2 is the group of the formula (II).
摘要:
An ocular lens material made of a copolymer comprising, as main copolymerizable components, (A) a polysiloxane macromonomer having polymerizable groups bonded via one or more urethane bonds to the siloxane main chain and (B) an alkyl (meth)acrylamide, wherein the weight ratio of the polysiloxane macromonomer to the alkyl (meth)acrylamide is from 5/95 to 90/10.
摘要:
The invention provides a method for the preparation of a higher alkoxy-substituted organopolysiloxane having, in a molecule, at least one alkoxy group of 4 to 30 carbon atoms bonded to the silicon atom. The method comprises: mixing an organohydrogenpolysiloxane, a higher aliphatic alcohol to provide the desired alkoxy groups, a platinum compound as a catalyst for the dehydrogenation reaction between silicon-bonded hydrogen atoms and the alcohol and an organic acid, e.g., acetic and citric acids, as a co-catalyst to promote the reaction; and heating the mixture.
摘要:
Siloxane compounds having a hydroxyalkyl radical incorporated in their betaine moiety exhibit improved surface tension reduction and are thus useful hair cleaning agents. They can be efficiently synthesized at a low cost without autoclaving.
摘要:
A novel organopolysiloxane is disclosed which has a molecular structure having, in addition to conventional monovalent hydrocarbon groups bonded to the silicone atoms, aminoalkyl groups, e.g. --CH.sub.2).sub.3 NH.sub.2 and --CH.sub.2).sub.3 NH--CH.sub.2 CH.sub.2 --NH.sub.2, and polyoxyalkylene-substituted aminoalkyl groups, e.g. --CH.sub.2).sub.3 NH--CH.sub.2 --CH(OH)--CH.sub.2 --O--C.sub.2 H.sub.4 O).sub.21 (C.sub.3 H.sub.6 O).sub.21 C.sub.8 H.sub.17. The novel organopolysiloxane, which is soluble or emulsifiable in water without using an emulsifying agent, is useful as the principal ingredient of a fabric-finishing composition and capable of imparting very pleasant touch of softness and excellent antistatic performance to the fabric materials treated therewith.
摘要翻译:公开了一种新型有机聚硅氧烷,其具有除了与硅氧烷原子键合的常规单价烃基以外的分子结构,例如氨基烷基。 -CH 2)3 NH 2和-CH 2)3 NH-CH 2 CH 2 -NH 2和聚氧化烯取代的氨基烷基,例如 -CH 2)3 NH-CH 2 -CH(OH)-CH 2 -O-C 2 H 4 O)21(C 3 H 6 O)21 C 8 H 17。 在不使用乳化剂的情况下,在水中可溶或可乳化的新型有机聚硅氧烷可用作织物整理组合物的主要成分,并且能够赋予对其处理的织物材料非常舒适的柔软感和优异的抗静电性能。
摘要:
The present invention provides a hydrophilic silicone which has a predetermined number of silicon atoms and a high purity and is suitable for producing an ophthalmic device and a process for preparing the same.The silicone compound is represented by formula (1) with a purity of 95% by weight or higher, wherein m is one value out of the integers of from 3 to 10, n is one value out of the integers of from 1 to 10, R1 is one out of alkyl groups having 1 to 4 carbon atoms, and R2 is one out of a hydrogen atom and a methyl group.
摘要翻译:本发明提供了具有预定数量的硅原子并且具有高纯度并且适于制造眼科装置的亲水性硅氧烷及其制备方法。 硅氧烷化合物由纯度为95重量%以上的式(1)表示,其中m为3〜10的整数中的1个,n为1〜10的整数之一, R 1是具有1至4个碳原子的烷基中的一个,R 2是氢原子和甲基中的一个。
摘要:
A cyclic carbonate-modified silane or siloxane is combined with a non-aqueous solvent and an electrolyte salt to form a non-aqueous electrolytic solution, which is used to construct a secondary battery having improved temperature and high-output characteristics.