-
公开(公告)号：US10227424B2
公开(公告)日：2019-03-12
申请号：US15101349
申请日：2015-09-14
申请人： LG CHEM, LTD.
发明人： Kyung Seog Youk , Heung Kwon Bae , Jung Rae Lee , Kyung Hyun Kim , Hyun Min Lee
摘要： The present invention relates to a method of preparing a vinyl chloride polymer having good thermal stability due to the restraint of dehydrochlorination by heat or ultraviolet rays, and a vinyl chloride polymer prepared thereby. In the preparation method through bulk polymerization, a modifier is introduced to a polymerization process to impart the vinyl chloride polymer with high thermal stability without inducing modification. Therefore, the preparation method via the bulk polymerization of the vinyl chloride polymer and the vinyl chloride polymer prepared thereby according to the present invention may be readily applied to industries requiring thereof such as industries concerning a vinyl chloride resin and the molded article thereof.
-
公开(公告)号：US20100160554A1
公开(公告)日：2010-06-24
申请号：US11989904
申请日：2006-07-28
申请人： Tamayo Okahira
发明人： Tamayo Okahira
CPC分类号： C08F2/06 , C08F2/38 , C08F2/44 , C08F4/32 , C09D11/107
摘要： Disclosed are a process for producing a polymer composition having a high solubility in a solvent, and a polymer composition. The process for producing a polymer composition comprises polymerizing a radical polymerizable monomer in a solvent comprising a compound of formula (1) or (2) in the presence of a radical polymerization initiator:
摘要翻译： 公开了一种在溶剂中具有高溶解度的聚合物组合物和聚合物组合物的方法。 制备聚合物组合物的方法包括在自由基聚合引发剂存在下在包含式（1）或（2）化合物的溶剂中使自由基聚合单体聚合：
-
23.发明申请Continuous dosing of extremely fast initiators during polymerization reactions 审中-公开在聚合反应期间连续计量极快的引发剂公开(公告)号：US20050054795A1
公开(公告)日：2005-03-10
申请号：US10498542
申请日：2002-12-18
摘要： The invention pertains to a process wherein initiators having a half-life from 0.0001 hour to 0.05 hour at the polymerization temperature are dosed to a polymerization mixture. The dosing of such initiator allows improved control of the polymerization rate and faster polymerization rates, and the process will render a polymer with very low residual initiator levels.
摘要翻译： 本发明涉及一种方法，其中在聚合温度下具有0.0001小时至0.05小时半衰期的引发剂加入到聚合混合物中。 这种引发剂的计量可以改进聚合速率的控制和更快的聚合速率，并且该方法将使具有非常低的残余引发剂水平的聚合物。
-
公开(公告)号：US6124409A
公开(公告)日：2000-09-26
申请号：US929457
申请日：1992-08-12
申请人： T. Hwee Ng , Hadi K. Mahabadi , Man C. Tam , Gregory J. Kovacs , Eric M. Peters , Rafik O. Loutfy
发明人： T. Hwee Ng , Hadi K. Mahabadi , Man C. Tam , Gregory J. Kovacs , Eric M. Peters , Rafik O. Loutfy
CPC分类号： C08F2/001 , C08F2/06 , Y10S526/921
摘要： Disclosed is a process for preparing copolymers which comprises, in the order stated: (1) adding monomers containing unsaturated carbon-to-carbon bonds, a first polymerization initiator, a second polymerization initiator, and a solvent to a reaction vessel; (2) purging the resulting solution with an inert gas; (3) sealing the reaction vessel and pressurizing it by addition of an inert gas to a pressure of from about 20 to about 600 kilopascals over ambient atmospheric pressure; (4) maintaining the temperature within the pressurized reaction vessel at a temperature of from about 50 to about 100.degree. C. for a period of from about 60 to about 300 minutes; (5) thereafter maintaining the temperature within the pressurized reaction vessel at a temperature of from about 80 to about 115.degree. C. for a period of from about 30 to about 300 minutes, wherein the temperature in step (5) is higher than the temperature in step (4); and (6) subsequently maintaining the temperature within the pressurized reaction vessel at a temperature of from about 115 to about 160.degree. C. for a period of from about 30 to about 180 minutes, wherein the temperature in step (6) is higher than the temperature in step (5). Polymers prepared according to the process of the present invention can be particularly useful in migration imaging members.
摘要翻译： 公开了一种制备共聚物的方法，其顺序包括：（1）向反应容器中加入含有不饱和碳 - 碳键的单体，第一聚合引发剂，第二聚合引发剂和溶剂; （2）用惰性气体吹扫所得溶液; （3）密封反应容器并通过在环境大气压下加入约20至约600千帕斯卡的惰性气体对其加压; （4）将加压反应容器内的温度维持在约50至约100℃的温度下约60至约300分钟; （5）之后将加压反应容器内的温度保持在约80至约115℃的温度下约30至约300分钟的时间，其中步骤（5）中的温度高于温度 在步骤（4）中; 和（6）随后将加压反应容器内的温度保持在约115至约160℃的温度下约30至约180分钟的时间，其中步骤（6）中的温度高于 步骤（5）中的温度。 根据本发明的方法制备的聚合物可以在迁移成像构件中特别有用。
-
25.发明授权Ethylene-vinyl formate copolymers, process for their preparation, their use as flow improvers, and fuel and propellant compositions comprising them 失效乙烯 - 甲酸乙烯酯共聚物，其制备方法，它们作为流动改进剂的用途，以及包含它们的燃料和推进剂组合物
公开(公告)号：US6099601A
公开(公告)日：2000-08-08
申请号：US802906
申请日：1997-02-20
IPC分类号： C08F4/38 , C08F210/02 , C10L1/197 , C01L1/18
CPC分类号： C10L1/1973 , C08F210/02
摘要： Copolymer comprising ethylene units and vinyl formate units, the content of free vinyl formate in the polymer preferably being not more than 5000 ppm, based on the weight of the copolymer, a process for its preparation, and its use as flow improver, especially in petroleum distillates, preferably fuel and propellant compositions, especially petroleum middle distillates, and also a fuel and propellant composition comprising a principal quantity of a fuel and propellant and that quantity of a copolymer as above which is effective in improving the flow properties.
摘要翻译： 包含乙烯单元和甲酸乙烯酯单元的共聚物，基于共聚物的重量，聚合物中游离乙烯基甲酸酯的含量优选不大于5000ppm，其制备方法及其作为流动改进剂，特别是在石油中的用途 馏出物，优选燃料和推进剂组合物，特别是石油中间馏分，以及包含主要量的燃料和推进剂的燃料和推进剂组合物，以及一定量的有效改善流动性能的共聚物。
-
公开(公告)号：US5854365A
公开(公告)日：1998-12-29
申请号：US575142
申请日：1995-12-19
申请人： Manabu Ohno , Akihiko Nakazawa , Nobuyuki Okubo , Shunji Suzuki , Hiroyuki Suematsu , Masayoshi Kato
发明人： Manabu Ohno , Akihiko Nakazawa , Nobuyuki Okubo , Shunji Suzuki , Hiroyuki Suematsu , Masayoshi Kato
IPC分类号： C08L101/00 , C08F4/38 , G03G9/087 , G03G9/097
CPC分类号： G03G9/08791 , G03G9/08782 , G03G9/08795 , G03G9/09783
摘要： The present invention relates a toner for developing electrostatic images, comprising: a resin composition, which contains a binder resin and low molecular weight wax, and a coloring agent, wherein the binder resin does not substantially contain insoluble tetrahydrofuran (THF) component, its chromatograph measured with soluble tetrahydrofuran (THF) component has a main peak in a region of a molecular weight of 2,000 to 30,000 and a subpeak or a shoulder in a high molecular weight region of a molecular weight of 100,000 or more, a ratio of weight average molecular weight (Mw)/number average molecular weight (Mn) thereof is 30 or more, the high molecular weight region has a crosslinking monomer unit as a component monomer unit and the binder resin contains high molecular weight polymer having a Mw of 1,200,000 or more polymerized by using both polyfunctional initiator and a mono-functional initiator. Moreover, the present invention relates to a method of manufacturing a resin composition for producing a toner.
-
公开(公告)号：US5830439A
公开(公告)日：1998-11-03
申请号：US857954
申请日：1997-05-16
IPC分类号： A61K8/81 , A61Q5/06 , C08F4/04 , C08F4/38 , C08F6/10 , C08F218/08 , C08F220/54 , C08F222/16 , A61K7/11
CPC分类号： A61K8/8158 , A61Q5/06 , Y10S424/01 , Y10S424/02
摘要： An improved hydrocarbon tolerant, aerosol hair spray resin composition includes a fixative polymer which is a tetrapolymer consisting essentially of (1) vinyl acetate, (2) vinyl neodecanoate or vinyl neononanoate, (3) monoisobutyl maleate and (4) N-t-butyl acrylamide, N-t-octyl acrylamide, or isobornyl (meth)acrylate, in a molar ratio from 10:10:15:1 to 26:1:15:1, preferably in a molar ratio of 12.5:7.5:15:1, exhibits advantageous small spray particle size, short tack and drying times, and hydrolytic stability, which are the desired performance characteristics on hair.
摘要翻译： 改进的耐烃气溶胶喷发树脂组合物包括一种固定聚合物，它是一种基本上由（1）乙酸乙烯酯，（2）新癸酸乙烯酯或新戊酸乙烯酯组成的四元共聚物，（3）马来酸单异丁酯和（4）N叔丁基丙烯酰胺， 辛基丙烯酰胺或（甲基）丙烯酸异冰片酯，摩尔比为10：10：15：1至26：1：15：1，优选摩尔比为12.5：7.5：15：1， 喷雾粒度，短粘性和干燥时间以及水解稳定性，这是头发上所需的性能特征。
-
公开(公告)号：US5674958A
公开(公告)日：1997-10-07
申请号：US397102
申请日：1995-04-26
申请人： Takumi Fukumura , John Meijer
发明人： Takumi Fukumura , John Meijer
IPC分类号： C07C409/38 , C08F4/28 , C08F4/34 , C08F4/04 , C08F4/38
CPC分类号： C08F4/34
摘要： The invention relates to a process for (co)polymerizing vinyl monomers in the presence of a radical polymerization initiator, characterized in that said radical polymerization initiator is a 3-methylpentyl-3-peroxy alkanoate of formula (I) wherein R.sub.1, R.sub.2 and R.sub.3 represent alkyl groups each having at most 9 carbon atoms with the proviso that the total number of carbon atoms of R.sub.1, R.sub.2 and R.sub.3 is at most 11, said 3-methylpentyl-3-peroxy alkanoate being employed in an amount of 0.002 to 2.0 parts by weight, based on 100 parts by weight of monomers present, said process being carried out at a temperature above 20.degree. C. The use of 3-methylpentyl-3-peroxy alkanoates in the present invention surprisingly and unexpectedly results in a higher polymerization velocity, a shortened polymerization time, and an increase in conversion as compared with the results obtained by using other radical polymerization initiators. It has also been found that the obtained polymer has excellent thermal stability and is not affected by odour or coloration. Thus the industrial value of the radical polymerization initiator peroxide of the present invention is remarkably high.
摘要翻译： PCT No.PCT / EP93 / 02426 Sec。 371日期1995年04月26日 102（e）日期1995年4月26日PCT 1993年9月7日PCT公布。 公开号WO94 / 06269 日期：1994年03月17日本发明涉及在自由基聚合引发剂存在下（共）聚合乙烯基单体的方法，其特征在于所述自由基聚合引发剂是3-甲基戊基-3-过氧化物 式（I）的链烷酸酯，其中R 1，R 2和R 3表示各自具有至多9个碳原子的烷基，条件是R 1，R 2和R 3的总碳原子数最多为11，所述3-甲基戊基-3- 过氧基链烷酸酯的使用量为0.002至2.0重量份，基于100重量份存在的单体，所述方法在高于20℃的温度下进行。使用3-甲基戊基-3-过氧基链烷酸酯在 与通过使用其它自由基聚合引发剂获得的结果相比，本发明令人惊奇地和出人意料地导致较高的聚合速度，缩短的聚合时间和转化率的增加。 还发现所得聚合物具有优异的热稳定性，不受气味或着色影响。 因此，本发明的自由基聚合引发剂过氧化物的工业价值非常高。
-
公开(公告)号：US5357011A
公开(公告)日：1994-10-18
申请号：US159248
申请日：1993-11-30
申请人： Shuji Ohnishi , Tadashi Amano
发明人： Shuji Ohnishi , Tadashi Amano
CPC分类号： C08F14/06
摘要： A process for producing a vinyl chloride-based polymer, which comprises suspension polymerizing vinyl chloride monomer or a vinyl chloride-containing monomeric mixture in an aqueous medium in the presence of an oil-soluble polymerization initiator, wherein the initiator comprises (A) at least one compound having a 10-hour half-life temperature, at a concentration of 0.1 mol/l in benzene, of not lower than 35.degree. C., and (B) at least one compound having a 10-hour half-life temperature, at a concentration of 0.1 mol/l in benzene, of lower than 35.degree. C., with the amount of the initiator (B) being from 0.01 to 0.07% by weight based on the monomer or monomeric mixture and being from 10 to 30% by weight based on the total amount of the initiators (A) and (B). The process makes it possible to shorten easily the time required for raising temperature, and to produce vinyl chloride-based polymers which have a good particle size distribution and which have few fish eyes when formed into sheets or the like.
摘要翻译： 一种氯乙烯类聚合物的制造方法，其特征在于，在油溶性聚合引发剂的存在下，在含水介质中使氯乙烯单体或含氯乙烯单体混合物悬浮聚合，其中，所述引发剂至少包含（A） 一种化合物，其在苯中的浓度为0.1mol / l的半衰期为10小时，不低于35℃，和（B）至少一种具有10小时半衰期的化合物， 在苯中浓度为0.1mol / l，低于35℃，引发剂（B）的量基于单体或单体混合物为0.01至0.07重量％，为10至30重量％ （A）和（B）的总量。 该方法可以容易地缩短提高温度所需的时间，并且可以制备具有良好粒度分布且在形成片状等时几乎没有鱼眼的氯乙烯基聚合物。
-
公开(公告)号：US5089576A
公开(公告)日：1992-02-18
申请号：US501553
申请日：1990-03-30
申请人： Suguru Tsuji , Toshiaki Saya , Shinji Komiyama , Hayato Furusho , Tetsu Ohishi , Mitsuhiro Tamura
发明人： Suguru Tsuji , Toshiaki Saya , Shinji Komiyama , Hayato Furusho , Tetsu Ohishi , Mitsuhiro Tamura
IPC分类号： C08F2/06 , C08F2/04 , C08F4/28 , C08F4/36 , C08F4/38 , C08F236/04 , C08F236/12
CPC分类号： C08F236/12
摘要： In a process for producing a conjugated diene copolymer, the improvement in which when copolymerizing a conjugated diene monomer with an ethylenically unsaturated nitrile monomer, at least one compound selected from a bifunctional peroxide represented by formulaR.sub.1 --OO--R.sub.2 --OO--R.sub.3 (I)wherein R.sub.1, R.sub.2 and R.sub.3 each denote a hydrocarbon group, anda bifunctional peroxycarbonate represented by formula ##STR1## wherein R.sub.4, R.sub.5 and R.sub.6 each denote a hydrocarbon group, said bifunctional peroxide and peroxycarbonate being soluble in said monomers, is used as a polymerization initiator.
摘要翻译： 在共轭二烯共聚物的制造方法中，当使共轭二烯单体与烯属不饱和腈单体共聚时，可以使用选自由式R1-OO-R2-OO-R3（Ⅰ）表示的双官能过氧化物， ）其中R 1，R 2和R 3各自表示烃基，和由式（II）表示的双官能过氧碳酸酯，其中R 4，R 5和R 6各自表示烃基，所述双官能过氧化物和过氧碳酸酯可溶于所述单体中，为 用作聚合引发剂。
-
-
-
-
-
-
-
-
-
搜索结果
138 条记录 (耗时 0.018 秒)
