Precross-linked silicone elastomer particles with organopolymer shell as
formulation constituent in powder coating materials
    2.
    发明授权
    Precross-linked silicone elastomer particles with organopolymer shell as formulation constituent in powder coating materials 失效
    具有有机聚合物壳的预交联硅氧烷弹性体颗粒作为粉末涂料中的配制成分

    公开(公告)号:US5981659A

    公开(公告)日:1999-11-09

    申请号:US29552

    申请日:1998-03-06

    摘要: The invention relates to the use of precrosslinked silicone elastomer particles with an organopolymer shell as the formulation constituent in powder coating material compositions based on thermoplastic or thermosetting binding agents, the silicone elastomer particles containing (a) 5 to 95% by weight, in relation the total weight of the copolymerisate, of a nucleus polymer of the general formula (R.sub.w SiO.sub.2/2).sub.x.(RSiO.sub.3/2).sub.y.(SiO.sub.4/2).sub.z with x=5 to 99.5 mol %, y=0.5 to 95 mol %, z=0 to 30 mol %, and (b) 5 to 95% by weight, in relation to the total weight of the copolymer, of a shell made of an organopolymer of ethylenically mono or multi-unsaturated monomers, R standing for identical or different monovalent C.sub.1 -C.sub.6 alkyl or alkenyl residues or substituted hydrocarbon residues.

    摘要翻译: PCT No.PCT / EP96 / 04208 Sec。 371日期1998年3月6日 102(e)1998年3月6日PCT PCT 1996年9月26日PCT公布。 公开号WO97 / 12005 日期1997年4月3日本发明涉及在基于热塑性或热固性粘合剂的粉末涂料组合物中使用具有有机聚合物壳的预交联的有机硅弹性体颗粒作为配制成分,所述硅氧烷弹性体颗粒含有(a)5至95% 重量,相对于共聚物的总重量,具有通式(RwSiO 2/2)x。(RSiO 3/2)y。(SiO 4/2)z的x = 5至99.5mol%的核聚合物,y = 0.5至95摩尔%,z = 0至30摩尔%,和(b)相对于共聚物的总重量为5至95重量%的由烯键式单或多不饱和单体的有机聚合物制成的壳 R代表相同或不同的一价C1-C6烷基或烯基残基或取代的烃残基。

    Process for the preparation of an organopolysiloxane resin
    3.
    发明授权
    Process for the preparation of an organopolysiloxane resin 失效
    制备有机聚硅氧烷树脂的方法

    公开(公告)号:US5401821A

    公开(公告)日:1995-03-28

    申请号:US165788

    申请日:1993-12-13

    摘要: Process for the preparation of an organopolysiloxane resin, which comprisesin a first stage reacting at least one silane of the formulaR.sub.a Si(OR.sup.1).sub.4-a (I)in which a has a value of 0, 1, 2 or 3, R and R.sup.1 are monovalent organic radicals which may be the same or different and/or a partial hydrolyzate thereof, with the proviso that at least one silane of formula (I), where a is 0 or 1 and/or a partial hydrolyzate thereof is employed, and optionally an organo(poly)siloxane with water in the presence of a poly-protic acid and optionally other substances, subsequently partly neutralizing the acid by addition of a base and then distilling off at least some of the compound R.sup.1 OH formed,in a second stage reacting the homogeneous reaction mass resulting from the first stage in the presence of a base and a water-insoluble organic solvent and distilling off the water and the compound R.sup.1 OH,in a third stage, bringing the homogeneous reaction mass resulting from the second stage to a pH of between 6 and 8 by buffering with a poly-protic acid and/or salts thereof, distilling off the water and any compound R.sup.1 OH still present and filtering off the salt which has precipitated, andoptionally, in a fourth stage separating the homogeneous reaction mass resulting from the third stage from the water-insoluble organic solvent.

    摘要翻译: 一种制备有机聚硅氧烷树脂的方法,该方法包括在第一阶段使至少一种式RaSi(OR1)4-a(I)的硅烷反应其中a值为0,1,2或3,R和 R 1是可以相同或不同的一价有机基团和/或其部分水解产物,条件是使用至少一种式(I)的硅烷,其中a为0或1,和/或其部分水解产物, 和任选的有机(聚)硅氧烷与水在多质子酸和任选的其它物质的存在下,随后通过加入碱部分中和酸,然后在第二次蒸馏出至少一些所形成的化合物R 1 OH 在碱的存在和水不溶性有机溶剂的存在下使由第一阶段产生的均相反应物质反应,并在第三阶段中蒸馏除去水和化合物R1OH,使由第二阶段产生的均匀反应物质 pH在6 a之间 通过用聚 - 质子酸和/或其盐缓冲,蒸出水和仍存在的任何化合物R1OH,并过滤沉淀的盐,并且任选地在第四阶段中分离由 第三阶段来自水不溶性有机溶剂。

    Graft copolymers of organopolysiloxanes as free radical macroinitiators
    4.
    发明授权
    Graft copolymers of organopolysiloxanes as free radical macroinitiators 失效
    有机聚硅氧烷作为自由基大分子引发剂的接枝共聚物

    公开(公告)号:US5523365A

    公开(公告)日:1996-06-04

    申请号:US320369

    申请日:1994-10-11

    摘要: The invention relates to crosslinked organopolysiloxanes which contain groups which form free radicals and are built up from units of the formula[R.sub.a Si(O.sub.(3-a)/2)-R.sup.1 -X-(R.sup.1 -Si(O.sub.(3-a)/2)).sub.b R.sub.a ] (1),in whichX is a radical from the group consisting of --N.dbd.N--, --O--O--, --S--S-- and --C(C.sub.6 H.sub.5).sub.2 --C(C.sub.6 H.sub.5).sub.2 --, andR is monovalent SiC-bonded, optionally substituted C.sub.1 - to C.sub.18 -hydrocarbon radicals,R.sup.1 is divalent SiC-bonded, optionally substituted C.sub.1 - to C.sub.18 -hydrocarbon radicals which can be interrupted by divalent radicals, bonded to carbon atoms on both sides, from the group consisting of --O--, --COO--, --OOC--, --CONR.sup.2 --, --NR.sup.2 CO-- and --CO--,R.sup.2 is a hydrogen atom or a radical R,a has the values 0, 1 or 2 andb has the values 0 or 1,and further organosiloxane units. The organopolysiloxanes are used as free radical macroinitiators for grafting polymerization of ethylenically unsaturated monomers.

    摘要翻译: 本发明涉及交联的有机聚硅氧烷,其含有形成自由基并由式[RaSi(O(3-a)/ 2)-R1-X-(R1-Si(O(3-a) / 2))bRa(1)其中X是由-N = N-,-OO-,-SS-和-C(C 6 H 5)2 -C(C 6 H 5)2 - 组成的基团, R是一价SiC键合的,任选取代的C 1至C 18烃基,R 1是二价SiC键合的,可被取代的C 1 -C 18烃基,其可被二价基团中断,与二价基团键合, 由-O - , - COO - , - OOC - , - CONR 2 - , - NR 2 CO - 和 - CO - 组成的基团,R 2为氢原子或基团R a,其值为0,1或2,b为 值0或1,以及其它有机硅氧烷单元。 有机聚硅氧烷用作自由基大分子引发剂,用于烯属不饱和单体的接枝聚合。

    Process for preparing organopolysiloxane hydrosols
    5.
    发明授权
    Process for preparing organopolysiloxane hydrosols 失效
    制备有机聚硅氧烷水溶胶的方法

    公开(公告)号:US5281657A

    公开(公告)日:1994-01-25

    申请号:US106973

    申请日:1993-08-16

    摘要: A process for preparing organopolysiloxane hydrosols by mixing an organosilicon compound with water, which comprises mixing a silane of the formulaR.sub.a Si(OR.sup.1).sub.4-a (I)where a is 0, 1, 2 or 3, R can be the same or different and is a hydrogen atom or a monovalent organic radical, R.sup.1 can be the same or different and is a monovalent organic radical, and/or a partial hydrolysis product thereof and, optionally, an organodisiloxane of the formulaR.sup.2.sub.3 Si-O-SiR.sup.2.sub.3 (II)where R.sup.2 can be the same or different and is the same as R, with water in the presence of an emulsifier at a temperature below 15.degree. C.

    摘要翻译: 通过将有机硅化合物与水混合制备有机聚硅氧烷水溶胶的方法,其中包括混合式为RaSi(OR1)4-a(I)的硅烷,其中a为0,1,2或3,R可以相同或不同 并且是氢原子或一价有机基团,R 1可以相同或不同,为一价有机基团,和/或其部分水解产物和任选的式R 23 Si-O-SiR 23(II)的有机二硅氧烷, 其中R 2可以相同或不同并且与R相同,在乳化剂存在下在15摄氏度以下的温度下进行。

    Organosols of organopolysiloxanes and a process for preparing the same
    6.
    发明授权
    Organosols of organopolysiloxanes and a process for preparing the same 失效
    有机聚硅氧烷的有机溶胶及其制备方法

    公开(公告)号:US5049636A

    公开(公告)日:1991-09-17

    申请号:US330529

    申请日:1989-03-30

    摘要: Organosols of organopolysiloxanes are prepared by adding water-soluble organic solvents or mixtures thereof or water-soluble mixtures of water-soluble and water-insoluble organic solvents to aqueous, colloidal suspensions of organopolysiloxanes obtained by adding at least one alkoxysilane and/or the partial hydrolyzate thereof, and, if appropriate, mixed with an organo(poly)siloxane free of alkoxy groups and having a maximum of 8 siloxane units per molecule, to water in the presence of emulsifiers at a maximum rate of 5 moles of organosilicon compound per hour and per liter of water, and subsequently removing the water by distillation.

    摘要翻译: 通过将水溶性有机溶剂或其混合物或水溶性和水不溶性有机溶剂的水溶性混合物加入到通过加入至少一种烷氧基硅烷和/或部分水解产物得到的有机聚硅氧烷的水性胶体悬浮液中来制备有机聚硅氧烷的有机溶剂 并且如果合适,在乳化剂存在下,以每小时5摩尔有机硅化合物的最大速率将水与每分子具有最多8个硅氧烷单元的有机(聚)硅氧烷混合,并且 每升水,然后通过蒸馏除去水。