Process for the preparation of powder coating compositions
    1.
    发明授权
    Process for the preparation of powder coating compositions 失效
    粉末涂料组合物的制备方法

    公开(公告)号:US06828363B2

    公开(公告)日:2004-12-07

    申请号:US09935619

    申请日:2001-08-23

    IPC分类号: C08K300

    摘要: The invention relates to a method of preparation for polymers, particularly binders for powder coatings and powder coatings which are prepared as a solution in a supercritical fluid phase. Binders for powder coatings are prepared from at least two ethylenically unsaturated monomers capable of free-radical or ionic copolymerization, and conventional initiators and regulators in supercritical fluids, whereby polymerization is carried out in the homogeneous phase, and, after the reaction has ended, either the composition or the phase parameters of the mixture are altered so that at least two phases with supercritical fluid are obtained, and the phase containing predominantly polymer is separated and the polymer is separated as a powder from the sc fluid by depressurization or the polymer phase is further processed under supercritical phase conditions to the powder coating.

    摘要翻译: 本发明涉及一种制备聚合物的方法,特别是制备为超临界流体相中溶液的粉末涂料和粉末涂料的粘合剂。 用于粉末涂料的粘合剂由至少两种能够进行自由基或离子共聚的烯键式不饱和单体和超临界流体中的常规引发剂和调节剂制备,其中聚合在均相中进行,反应结束后, 改变混合物的组成或相参数,使得获得具有超临界流体的至少两相,并且主要包含聚合物的相分离,并且通过减压将聚合物作为粉末与sc流体分离,或者聚合物相是 在超临界相条件下进一步加工成粉末涂料。

    Process for the production of 3-hydroxy-1,3,5(10)-estratrien-17-one
    2.
    发明授权
    Process for the production of 3-hydroxy-1,3,5(10)-estratrien-17-one 失效
    制备3-羟基-1,3,5(10) - 十六烷基-17-酮的方法

    公开(公告)号:US5151533A

    公开(公告)日:1992-09-29

    申请号:US721608

    申请日:1991-07-22

    IPC分类号: C07J1/00

    CPC分类号: C07J1/0011 C07J1/0059

    摘要: A process for the production of 3-hydroxy-1,3,5(10)-estratrien-17-one by pyrolysis of 1,4-androstadiene-3,17-dione in the presence of 1,2,3,4-tetrahydronaphthalene as hydrogen donor is described, by 1,2,3,4-tetrahydronaphthalene, preheated to a temperature of 450.degree.-850.degree. C., in a mixing zone being mixed with a solution, heated to a temperature of up to 300.degree. C., of 1,4-androstadiene-3,17-dione, in 1,2,3,4-tetrahydronaphthalene, the mixture being heated in a pyrolysis zone at a retention time of 0.001 to 60 seconds to temperatures of 450.degree.-700.degree. C. and the product leaving the pyrolysis zone being cooled off, which is characterized in that the pyrolysis is performed under a pressure of 3.5.times.10.sup.6 to 3.times.10.sup.8 Pa.

    摘要翻译: PCT No.PCT / DE90 / 00690 Sec。 371日期1991年6月22日 102(e)日期1991年6月22日PCT提交1990年9月6日PCT公布。 出版物WO91 / 04264 日本1991年4月4日。一种通过在1,4-环己二烯-3,17-二酮的存在下热解1,4-丁二烯-3,17-二酮生产3-羟基-1,3,5(10) - 雌三醇17-酮的方法 ,2,3,4-四氢化萘作为氢供体通过1,2,3,4-四氢化萘描述,预热至450-850℃的温度,在与溶液混合的混合区中,加热至 在1,2,3,4-四氢化萘中温度高达300℃的1,4-雄甾二烯-3,17-二酮,将混合物在热解区中以0.001至60的保留时间加热 秒至450℃-700℃的温度,离开热解区的产物被冷却,其特征在于在3.5×10 6至3×10 8 Pa的压力下进行热解。

    Method for controlled free radical polymerization or copolymerization of ethylene under high pressure in the presence of an initiator-controller
    3.
    发明授权
    Method for controlled free radical polymerization or copolymerization of ethylene under high pressure in the presence of an initiator-controller 失效
    在引发剂 - 控制剂存在下,在高压下控制乙烯自由基聚合或共聚的方法

    公开(公告)号:US06734269B1

    公开(公告)日:2004-05-11

    申请号:US09807147

    申请日:2001-06-15

    IPC分类号: C08F400

    摘要: The present invention relates to a process for the radical polymerization or copolymerization of ethylene under high pressure in the presence of at least one polymerization initiating-controlling compound capable of providing, by decomposition under the polymerization or copolymerization conditions: at least one initiating free radical (Z) which carries at least one site for initiating the (co)polymerization; and at least one stable free radical (SFR) which carries at least one site exhibiting the stable radical state and which is stable under the polymerization conditions, with, in total, as many initiating sites as sites exhibiting the stable radical state.

    摘要翻译: 本发明涉及一种在至少一种聚合引发控制化合物的存在下,在高压下自由基聚合或共聚乙烯的方法,该化合物能够在聚合反应或共聚条件下分解提供:至少一种起始自由基 Z),其携带至少一个用于引发(共)聚合的位点; 和至少一个稳定的自由基(SFR),其携带至少一个表现出稳定自由基状态的位点,并且在聚合条件下是稳定的,总共具有作为显示稳定自由基状态的位点的许多引发位点。

    Preparation of cyano-containing copolymers based on ethylene
    6.
    发明授权
    Preparation of cyano-containing copolymers based on ethylene 失效
    基于乙烯的含氰基共聚物的制备

    公开(公告)号:US5006609A

    公开(公告)日:1991-04-09

    申请号:US462705

    申请日:1990-01-09

    CPC分类号: C08F8/30 C08F2800/10

    摘要: A product which is suitable for producing films and moldings and for use as a coating agent comprises a cyano-containing copolymer A based on ethylene composed of(a) predominant proportions of the structural unit of ethylene,(b) minor proportions of the structural unit of the general formula Ia ##STR1## where R.sup.1 is hydrogen or C.sub.1 -C.sub.4 -alkyl, and (c) optional structural units derived from other comonomers,which is prepared by reacting a base copolymer B formed from predominant proportions of ethylene, minor proportions of an .alpha., .beta.-unsaturated carboxylic ester of the general formula Ib ##STR2## where R.sup.2 is C.sub.1 -C.sub.8 -alkyl, and further, optional comonomers, with ammonia at 120.degree.-280.degree. C. and 150-2,500 bar.

    摘要翻译: 适用于生产膜和模制品并用作涂层剂的产品包括由(a)主要比例的乙烯结构单元构成的基于乙烯的含氰共聚物A,(b)较小比例的结构单元 其中R 1是氢或C 1 -C 4 - 烷基,和(c)由其它共聚单体衍生的任选的结构单元,其通过使由主要比例的乙烯形成的基础共聚物B与少量的比例 其中R 2是C 1 -C 8 - 烷基的通式Ib的β-不饱和羧酸酯,以及另外的任选的共聚单体,在120-280℃和150-2,500巴下用氨。