公开(公告)号：US5292914A

公开(公告)日：1994-03-08

申请号：US84174

申请日：1993-07-01

申请人： Shuji Suyama ,  Tomoyuki Nakamura ,  Hiroyuki Nagai ,  Mieko Takei

发明人： Shuji Suyama ,  Tomoyuki Nakamura ,  Hiroyuki Nagai ,  Mieko Takei

IPC分类号： C07C409/38 ,  C08F4/28 ,  C08F4/36 ,  C08F8/00 ,  C08F8/04 ,  C08G67/00 ,  C07C69/96

CPC分类号： C07C409/38 ,  C08F4/36

摘要： An organic peroxide consisting of 1 to 30 repeating units represented by the formula ##STR1## wherein R stands for one group selected from the class consisting of ethylene, acetylene, cyclohexylene, and phenylene groups and one of 1 and m stands for an integer of at least 1 and 1+m stands for an integer in the range of from 6 to 220. Polymerization initiator for a vinyl monomer consisting of the organic peroxide mentioned above. A method for polymerizing a vinyl monomer by using the polymerization initiator mentioned above.

摘要翻译： 由1〜30个以下式表示的重复单元构成的有机过氧化物，式中，R表示选自乙烯，乙炔，亚环己基和亚苯基中的1个基团，1个和m个 至少为1的整数，1 + m表示6至220的整数。由上述有机过氧化物组成的乙烯基单体的聚合引发剂。 通过使用上述聚合引发剂使乙烯基单体聚合的方法。

公开(公告)号：US5191040A

公开(公告)日：1993-03-02

申请号：US833506

申请日：1992-02-11

申请人： Ryozo Okumura ,  Kiichi Izumida

发明人： Ryozo Okumura ,  Kiichi Izumida

IPC分类号： C08F2/02 ,  C08F2/44 ,  C08F4/28 ,  C08F4/36 ,  C08F12/00 ,  C08F12/06 ,  C08F12/08

CPC分类号： C08F12/08

摘要： A process for producing a styrenic polymer suitable for making molded products which has excellent quality without a decrease in the productivity. The process comprises feeding a compound consisting essentially of a styrenic monomer to 2 to 6 units of reactors connected in series and carrying out a bulk polymerization at a reaction temperature of 90.degree. to 200.degree. C. and a difference of reaction temperatures among the units of reactors of not more than 40.degree. C. and in the presence of 10 to 450 ppm by weight of an organic peroxide represented by the following formula (I): ##STR1## wherein R represents a tertiary alkyl group or a tertiary aralkyl group, and R.sup.1 and R.sup.2 each represent an alkyl group having 1 to 2 carbon atoms, the styrenic polymer having a weight average molecular weight of 30.times.10.sup.4 to 70.times.10.sup.4 and a ratio of weight average molecular weight (Mw) to number average molecular weight (Mn of not more than 3.0.

公开(公告)号：US5185405A

公开(公告)日：1993-02-09

申请号：US525026

申请日：1990-05-18

申请人： Masaharu Nishida

发明人： Masaharu Nishida

IPC分类号： C08F12/08 ,  C08F4/32 ,  C08F4/36 ,  C08F212/00 ,  C08F212/04 ,  C09D11/10 ,  C09D11/106 ,  C09D11/108 ,  G03G9/087

CPC分类号： C08F4/36 ,  C08F212/04 ,  G03G9/08702 ,  G03G9/08711

摘要： Resin compositions, comprising a high molecular weight copolymer having a molecular weight of at least 300,000, obtained by copolymerizing a styrenic monomer and an acrylic or methacrylic monomer, with or without another monomer, in the presence of a polyfunctional polymerization initiator, have wide molecular weight distribution and are suitable as binders for electrophotographic toners.

摘要翻译： 通过在多官能聚合引发剂的存在下，使苯乙烯类单体和丙烯酸或甲基丙烯酸单体与或不与其它单体共聚得到的分子量至少为300,000的高分子量共聚物的树脂组合物具有宽分子量 分布并且适合作为电子照相调色剂的粘合剂。

公开(公告)号：US5106916A

公开(公告)日：1992-04-21

申请号：US421770

申请日：1989-10-16

申请人： David J. Mitchell

发明人： David J. Mitchell

IPC分类号： C08F4/32 ,  C08F4/36 ,  C08F255/00 ,  C08F255/02

CPC分类号： C08F255/00 ,  C08F255/02 ,  C08F4/32

摘要： This invention relates to a process for the catalytic grafting of an ethylenically unsaturated monomer onto a copolymer in the presence of a catalyst. The monomer is selected from the group consisting of ethylenically unsaturated carboxylic acids, anhydrides esters and other derivatives thereof. The copolymer is selected from the group consisting of certain copolymers of ethylene and ionomers of such copolymers. The catalyst is a mixture of (a) a certain amount of water and (b) at least one of certain phosphorus-containing compounds. The process comprises admixing copolymer, monomer, catalyst and an organic peroxide at a temperature above the melting point of the copolymer for a period of time so as to obtain a uniform distribution of monomer, catalyst and peroxide in the copolymer. The resultant grafted copolymer has improved color, and is useful in adhesive systems and as a compatibilizer for polymers and other materials.

公开(公告)号：US5082912A

公开(公告)日：1992-01-21

申请号：US639336

申请日：1990-12-11

申请人： Toru Kawaguchi

发明人： Toru Kawaguchi

IPC分类号： C08F4/28 ,  C08F4/34 ,  C08F4/36 ,  C08F20/10 ,  C08F22/10 ,  C08F26/00 ,  C08F26/10 ,  C08F220/20 ,  C08F222/18 ,  C08F222/20 ,  C08F226/06 ,  C08F226/10

CPC分类号： C08F4/36 ,  C08F222/20 ,  C08F226/06

摘要： A polymer-type polymerization initiator produced by copolymerizing (A) 40 to 60 mole % of an N-vinyllactam and (B) 60 to 40 mole % of at least one fumarate containing a peroxy group, the peroxy-fumarate (B) being represented by the following formula: ##STR1## wherein R1 is a linear alkyl, branched alkyl or cycloalkyl group containing not more than 18 carbon atoms, or an aromatic hydrocarbon group containing 6 to 18 carbon atoms; and R2 is a linear alkyl, branched alkyl or cycloalkyl group containing not more than 13 carbon atoms, or a phenyl group.The peroxy-fumarate (b1) may be used in combination with (b2) at least one diester of fumaric acid selected from the group consisting of alkyl fluoroalkyl fumarate, alkyl silicon-containing-alkyl fumarate, fluoroalkyl, silicon-containing-alkyl fumarate, bis(fluoroalkyl) fumarate, and bis(silicon-containing-alkyl) fumarate, a mole ratio of the peroxy-fumarate to the diester of fumaric acid falling within a range of 9 to 1 to 1 to 9.

公开(公告)号：US5066744A

公开(公告)日：1991-11-19

申请号：US448637

申请日：1989-12-11

申请人： Shuji Suyama ,  Tomoyuki Nakamura

发明人： Shuji Suyama ,  Tomoyuki Nakamura

IPC分类号： C08F4/28 ,  C08F4/36 ,  C08F14/00 ,  C08F14/06

CPC分类号： C08F14/06

摘要： A polyvinyl chloride polymer or copolymer having excellent thermal resistance and being free from FEs and offensive smell can be obtained in a high yield through a polymerization reaction of vinyl chloride monomer alone or together with a vinyl monomer copolymerizable therewith by the use of a combination system polymerization initiator consisting of (A) .alpha.,.alpha.'-bis(neodecanoylperoxy)-diisopropylbenzene, and (B) at least one of peroxy ester, diacyl peroxide and peroxy dicarbonate, each of which has a 10-hour half-life period temperature within the range of 40.degree.-65.degree. C. in its 0.1 mol concentration solution in benzene.

摘要翻译： 通过单独的氯乙烯单体或与其共聚的乙烯基单体的聚合反应，可以通过使用组合体系聚合法获得具有优异耐热性且不含有FE和异味的聚氯乙烯聚合物或共聚物 由（A）α，α'-双（新癸酰过氧基） - 二异丙基苯和（B）过氧酯，二酰基过氧化物和过氧化二碳酸酯中的至少一种引发剂组成的引发剂，其中每一个在其内具有10小时的半衰期温度 范围为40°-65℃，在其0.1mol浓度的苯溶液中。

公开(公告)号：US4970244A

公开(公告)日：1990-11-13

申请号：US740278

申请日：1985-06-03

申请人： Takeshi Komai ,  Mamoru Shimizu

发明人： Takeshi Komai ,  Mamoru Shimizu

IPC分类号： C08F2/00 ,  C07C67/00 ,  C07C407/00 ,  C07C409/38 ,  C08F2/50 ,  C08F4/36 ,  G03F7/028 ,  G03F7/031

CPC分类号： G03F7/031 ,  C07C409/38 ,  C08F2/50

摘要： Photopolymerization initiators of the general formula: ##STR1## wherein R.sub.1 and R.sub.1 ' independently stand for a tertiary alkyl group or a tertiary aralkyl group and R.sub.2 and R.sub.2 ' independently stand for a hydrogen atom, a tertiary alkoxy group, or a tertiary aralkyloxy group are disclosed. They are useful for effecting polymerization of radically polymerizable unsaturated compounds.

公开(公告)号：US4833221A

公开(公告)日：1989-05-23

申请号：US92207

申请日：1987-09-02

申请人： Klaus Albrecht

发明人： Klaus Albrecht

IPC分类号： C08F6/00 ,  C08F2/00 ,  C08F2/06 ,  C08F4/36 ,  C08F6/06 ,  C08F20/02 ,  C08F212/00 ,  C08F212/08 ,  C08F220/10 ,  C08F220/12 ,  C08F220/14 ,  C08F222/06

CPC分类号： C08F220/14

摘要： A two step method for making a thermoplastic molding composition predominantly comprising methyl methacrylate by polymerizing monomers in a first stage, in the presence or absence of a solvent, to 50 percent conversion, further polymerizing at 75.degree. C. to 150.degree. C. in a second stage in the presence of a nonpolymerizable organic solvent to a conversion of at least 80 percent, and then evaporating volatile constituents.

摘要翻译： 一种制备热塑性模塑组合物的主要包含甲基丙烯酸甲酯的两步法，该方法主要是在第一阶段，在存在或不存在溶剂的情况下，将单体聚合至50％转化率，在75℃至150℃进一步聚合 在不可聚合的有机溶剂的存在下的第二阶段转化率至少为80％，然后蒸发挥发成分。

公开(公告)号：US4822883A

公开(公告)日：1989-04-18

申请号：US87473

申请日：1987-08-20

申请人： Terry N. Myers

发明人： Terry N. Myers

IPC分类号： C07D211/36 ,  C07D211/44 ,  C07D211/46 ,  C07D211/54 ,  C07D211/58 ,  C07D401/04 ,  C07D401/06 ,  C07D401/12 ,  C07D401/14 ,  C07D471/10 ,  C07D491/113 ,  C08F4/28 ,  C08F4/34 ,  C08F4/36 ,  C08F299/04 ,  C08K5/3435

CPC分类号： C07D401/04 ,  C07D211/46 ,  C08F299/045 ,  C08F4/34 ,  C08K5/3435

摘要： Compounds which contain peroxide linkages and the radical of a hindered amine light stabilizer group are provided. These compounds function as polymerization initiators which cause the hindered amine stabilizer to be chemically bound to the polymer.

摘要翻译： 提供含有过氧化物键的化合物和受阻胺光稳定剂基团的基团。 这些化合物起聚合引发剂的作用，使受阻胺稳定剂与聚合物化学键合。

公开(公告)号：US4804775A

公开(公告)日：1989-02-14

申请号：US905412

申请日：1986-09-09

申请人： Vasanth R. Kamath ,  Leonard H. Palys

发明人： Vasanth R. Kamath ,  Leonard H. Palys

IPC分类号： C08F283/06 ,  C08F4/28 ,  C08F4/36 ,  C08F4/38 ,  C08F6/00 ,  C08F283/00 ,  C08G18/62 ,  C08G18/63 ,  C07C121/54

CPC分类号： C08F283/00 ,  C08F6/006 ,  C08G18/63

摘要： An improved process is provided for preparing stable low viscosity polymer-polyols containing less than about 100 ppm residual monomers by using a monoperoxycarbonate initiator in combination with at least one initiator selected from diperoxyketals and peroxyesters, as chaser catalysts, at or near the end of the polymerization. The polymer-polyols prepared by the instant invention can be used to prepare high resiliency (load bearing) polyurethane foams.

摘要翻译： 提供了一种改进的方法，用于通过使用单过氧碳酸酯引发剂与至少一种选自二过氧缩酮和过氧酯的引发剂一起作为催化剂催化剂来制备含有少于约100ppm残留单体的稳定的低粘度聚合物 - 多元醇， 聚合。 本发明制备的聚合物 - 多元醇可用于制备高弹性（承载）聚氨酯泡沫。