公开(公告)号：US5006607A

公开(公告)日：1991-04-09

申请号：US416203

申请日：1989-10-02

申请人： Zaev Sharaby ,  Robert G. Vielhaber

发明人： Zaev Sharaby ,  Robert G. Vielhaber

IPC分类号： C08F14/06 ,  C08F2/18 ,  C08F2/20 ,  C08F2/38 ,  C08F8/20 ,  C08F8/22 ,  C08F14/00

CPC分类号： C08F8/22

摘要： Chlorinated polyvinyl chloride (CPVC) is prepared from polyvinyl chloride (PVC). When PVC is made utilizing polyvinyl alcohol, the low molecular weight CPVC compound so prepared is colored. A low molecular weight CPVC compound prepared from PVC that was made in the presence of a cellulose ether instead of polyvinyl alcohol resulted in a very low color compound having a DE of O by definition. However, a CPVC compound prepared from PVC made in the presence of polyvinyl alcohol resulted in a relatively high color (DE 18.51). During the polymerization of vinyl chloride, polyvinyl alcohol is replaced with the hydroxypropylmethyl cellulose ether having a methoxyl substitution of 15-35 percent and a hydroxypropoxyl substitution of from 4-35 percent.

公开(公告)号：US4797458A

公开(公告)日：1989-01-10

申请号：US902714

申请日：1986-09-02

申请人： Zaev Sharaby

发明人： Zaev Sharaby

IPC分类号： C08F2/16 ,  C08F2/18 ,  C08F2/20 ,  C08F2/38 ,  C08F14/00 ,  C08F14/06

CPC分类号： C08F14/06

摘要： Polymers of vinyl halides having low molecular weights, good particle characteristics, and improved melt flow are made by aqueous polymerization utilizing an effective amount of a mercaptan as a chain transfer agent, wherein the mercaptan chain transfer agent is mixed with at least one material which is non-polymerizable with vinyl chloride and wherein said non-polymerizable material is substantially insoluble in water and is miscible with said mercaptan to form a chain transfer composition, and said chain transfer composition is added before the start of the polymerization while maintaining colloidal stability.

摘要翻译： 通过使用有效量的硫醇作为链转移剂的水性聚合制备具有低分子量，良好的颗粒特性和改善的熔体流动性的乙烯基卤化物的聚合物，其中硫醇链转移剂与至少一种 与氯乙烯不可聚合，并且其中所述不可聚合材料基本上不溶于水，并且可与所述硫醇混溶以形成链转移组合物，并且在聚合开始之前加入所述链转移组合物同时保持胶体稳定性。

公开(公告)号：US4471096A

公开(公告)日：1984-09-11

申请号：US404723

申请日：1982-08-03

申请人： Zaev Sharaby ,  Donald Goodman

发明人： Zaev Sharaby ,  Donald Goodman

IPC分类号： C08F2/38 ,  C08F14/06

CPC分类号： C08F14/06

摘要： Vinyl chloride polymers are prepared by polymerizing a monomer component that comprises vinyl chloride in an aqueous medium in the presence of a free radical-generating polymerization initiator and 0.01% to 2% by weight, based on the weight of the monomer component, of a chain-transfer agent that is a mercapto organic compound having at least one beta-ether linkage. The process can be used to produce low molecular weight vinyl chloride polymers.

摘要翻译： 乙烯基氯聚合物是通过在产生自由基的聚合引发剂存在下，在含水介质中聚合包含氯乙烯的单体组分，以单体组分重量为基准的0.01％至2％ - 转移剂，其是具有至少一个β-醚键的巯基有机化合物。 该方法可用于生产低分子量氯乙烯聚合物。

公开(公告)号：US4999406A

公开(公告)日：1991-03-12

申请号：US402004

申请日：1989-09-01

申请人： Zaev Sharaby

发明人： Zaev Sharaby

IPC分类号： C08F8/14

CPC分类号： C08F8/14

摘要： Thermoplastic polymers exhibiting improved physical properties and a method for preparing same compositions comprises reacting a functionalized base polymer composition having pendant cyclic anhdyride groups with a coreactive second moiety. Said functionalized base polymer comprises the reaction product of:I. a hydroxyl containing base polymer comprising the reaction product of:(a) a vinyl halide monomer; and(b) at least one other ethylenically unsaturated monomer having at least one pendant hydroxyl functional group; andII. a cyclic polyanhydride functionalizing agent.

摘要翻译： 显示出改善的物理性质的热塑性聚合物和制备其组合物的方法包括使具有侧链环状基团的官能化的基础聚合物组合物与核心的第二部分反应。 所述官能化基础聚合物包括以下反应产物：I.含羟基的基础聚合物，其包含以下反应产物：（a）乙烯基卤单体; 和（b）至少一种具有至少一个羟基官能团侧基的烯属不饱和单体; 和II。 环状聚酐官能化剂。

公开(公告)号：US4931518A

公开(公告)日：1990-06-05

申请号：US854204

申请日：1986-04-21

申请人： Zaev Sharaby

发明人： Zaev Sharaby

IPC分类号： C08F2/20 ,  C08F2/38 ,  C08F14/06 ,  C08F214/00 ,  C08F214/06

CPC分类号： C08F214/06 ,  C08F14/06 ,  C08F214/00

摘要： Copolymers of vinyl or vinylidene halides and vinyl esters of C.sub.2 and C.sub.3 acids are provided having low molecular weights, good particle characteristics, and improved melt flow are made by aqueous polymerization utilizing an effective amount of a mercaptan as a chain transfer agent, wherein the chain transfer agent is admixed with the vinyl esters to form a chain transfer composition, and may be added before the start of the polymerization.

摘要翻译： 提供乙烯基或亚乙烯基卤化物和C2和C3酸的乙烯基酯的共聚物具有低分子量，良好的颗粒特性，并且通过使用有效量的硫醇作为链转移剂的水性聚合制备改进的熔体流动，其中链 转移剂与乙烯基酯混合以形成链转移组合物，并且可以在聚合开始之前加入。

公开(公告)号：US4748218A

公开(公告)日：1988-05-31

申请号：US728549

申请日：1985-04-29

申请人： Zaev Sharaby

发明人： Zaev Sharaby

IPC分类号： C08F2/38 ,  C08F2/42 ,  C08F14/06 ,  C08K5/13 ,  C08F2/02 ,  C08F2/18 ,  C08F114/06

CPC分类号： C08F14/06 ,  C08F2/42 ,  C08K5/13

摘要： It has been found that substituted hydroquinones function as a shortstop agent in the polymerization of vinyl monomers. The substituted hydroquinones have the formula: ##STR1## wherein ##STR2## wherein p is 1 or 2 and q is 0 or 1; provided that p+q=1 or 2. The groups R.sub.1, R.sub.2, R.sub.3, R.sub.4, Z and W are defined hereafter.The compounds 2,5-di-t-amylhydroquinone and 2,5-di-t-butylhydroquinone are particularly desirable as shortstop agents in the polymerization of vinyl chloride.

摘要翻译： 已经发现取代的氢醌在乙烯基单体的聚合中用作快速阻燃剂。 取代的氢醌具有下式：其中其中p为1或2且q为0或1; 条件是p + q = 1或2.下面定义基团R1，R2，R3，R4，Z和W. 化合物2,5-二叔戊基氢醌和2,5-二叔丁基对苯二酚是氯乙烯聚合中的快速阻燃剂特别理想的。

公开(公告)号：US4988769A

公开(公告)日：1991-01-29

申请号：US402201

申请日：1989-09-01

申请人： Zaev Sharaby

发明人： Zaev Sharaby

IPC分类号： C08F8/14

CPC分类号： C08F8/14

摘要： Thermoplastic polymers exhibiting improved physical properties and a method for preparing same are described. The method of preparing these polymer compositions comprises reacting a functionalized base polymer composition having pendant cyclic anhydride groups with a coreactive second moiety. Said functionalized base polymer comprises the reaction product of:I. a hydroxyl containing base polymer comprising the reaction product of:(a) a vinyl halide monomer; and(b) at least one other ethylenically unsaturated monomer having at least one pendant hydroxyl functional group; andII. a cyclic polyanhydride functionalizing agent.

摘要翻译： 描述了具有改进的物理性质的热塑性聚合物及其制备方法。 制备这些聚合物组合物的方法包括使具有侧链环酸酐基团的官能化的基础聚合物组合物与核心的第二部分反应。 所述官能化的基础聚合物包括以下反应产物：I.含羟基的基础聚合物，其包含以下反应产物：（a）乙烯基卤单体; 和（b）至少一种具有至少一个羟基官能团侧基的烯属不饱和单体; 和II。 环状聚酐官能化剂。

公开(公告)号：US4963592A

公开(公告)日：1990-10-16

申请号：US440551

申请日：1989-11-20

申请人： Zaev Sharaby

发明人： Zaev Sharaby

IPC分类号： C08F14/06 ,  C08K5/37

CPC分类号： C08F14/06 ,  C08K5/37

摘要： A process for producing porous, low molecular weight vinyl polymers and copolymers via suspension polymerization in the presence of a dual function porosifier/low molecular weight modifier is disclosed. The process is especially advantageous in that it can be run at a wide variety of temperatures to obtain super porous, low molecular weight resins. Novel super porous, low molecular weight resins are also disclosed.

摘要翻译： 公开了一种通过悬浮聚合制备多孔，低分子量乙烯基聚合物和共聚物的方法，该方法是在双功能孔增皂剂/低分子量改性剂存在下进行的。 该方法特别有利的是，其可以在多种温度下运行以获得超多孔，低分子量的树脂。 还公开了新型超多孔低分子量树脂。

公开(公告)号：US4962159A

公开(公告)日：1990-10-09

申请号：US401910

申请日：1989-09-01

申请人： Zaev Sharaby

发明人： Zaev Sharaby

IPC分类号： C08F8/14

CPC分类号： C08F8/14

摘要： Thermoplastic polymers exhibiting improved physical properties and a method for preparing same are described. The method of preparing these polymer compositions comprises reacting a functionalized base polymer composition having pendant cyclic anhydride groups with a coreactive second moiety. Said functionalized base polymer comprises the reaction product of:I. a hydroxyl containing base polymer comprising the reaction product of:(a) a vinyl halide monomer; and(b) at least one other ethylenically unsaturated monomer having at least one pendant hydroxyl functional group; andII. a cyclic polyanhydride functionalizing agent.

摘要翻译： 描述了具有改进的物理性质的热塑性聚合物及其制备方法。 制备这些聚合物组合物的方法包括使具有侧链环酸酐基团的官能化的基础聚合物组合物与核心的第二部分反应。 所述官能化的基础聚合物包括以下反应产物：I.含羟基的基础聚合物，其包含以下反应产物：（a）乙烯基卤单体; 和（b）至少一种具有至少一个羟基官能团侧基的烯属不饱和单体; 和II。 环状聚酐官能化剂。

公开(公告)号：US5847062A

公开(公告)日：1998-12-08

申请号：US834755

申请日：1992-02-12

申请人： Zaev Sharaby

发明人： Zaev Sharaby

IPC分类号： C08F2/20 ,  C08F14/06 ,  C08F214/06

CPC分类号： C08F214/06 ,  C08F14/06

摘要： Copolymers of vinyl or vinylidene halides and vinyl esters of fatty acids having low molecular weights, good particle characteristics, and improved melt flow are made by aqueous polymerization utilizing an effective amount of a mercaptan as a chain transfer agent, wherein the chain transfer agent is admixed with the vinyl esters to form a chain transfer composition, and the composition be added before the start of the polymerization.

摘要翻译： 乙烯基或亚乙烯基卤化物的共聚物和具有低分子量，良好的颗粒特性和改善的熔体流动的脂肪酸的乙烯基酯通过使用有效量的硫醇作为链转移剂的水性聚合来制备，其中将链转移剂混合 与乙烯基酯形成链转移组合物，并且在聚合开始之前加入组合物。