公开(公告)号：US07153918B2

公开(公告)日：2006-12-26

申请号：US10892006

申请日：2004-07-15

申请人： Yun-Tai Wu ,  Mark Aaron Stewart ,  David John Mitchell ,  Edward McBride

发明人： Yun-Tai Wu ,  Mark Aaron Stewart ,  David John Mitchell ,  Edward McBride

IPC分类号： C08F234/04

CPC分类号： C08L33/08 ,  C08F220/12

摘要： Disclosed are random copolymers derived from ethylene and at least two different alkyl acrylate comonomers, with or without an acid cure site-containing comonomer. In particular, disclosed are copolymers derived from copolymerization of (a) from 10 to 50 weight % of ethylene; (b) from 5 to 55 weight % of a first alkyl acrylate; (b) from 15 to 80 weight % of a second alkyl acrylate; and (d) from 0 to 7 weight % of a monoalkyl ester of 1,4-butene-dioic acid. Such copolymers exhibit lower glass transition temperatures (Tg) relative to previous ethylene copolymers comprising a single alkyl acrylate comonomer and maintain the good heat and fluid resistance when employed to produce cured elastomeric compositions as well as the improved low temperature properties. This invention also provides compounded compositions comprising these copolymers, and cured compositions (i.e., vulcanizates) as well as rubber articles formed from these compounded compositions, such as hoses, dampers, seals, gaskets, constant velocity joint (CVJ) boots and shaft boots.

摘要翻译： 公开了衍生自乙烯和至少两种不同的丙烯酸烷基酯共聚单体的无规共聚物，具有或不具有含酸固化位点的共聚单体。 特别地，公开了衍生自（a）10至50重量％的乙烯的共聚合的共聚物; （b）5至55重量％的第一丙烯酸烷基酯; （b）15至80重量％的第二丙烯酸烷基酯; 和（d）0至7重量％的1,4-丁二烯酸的单烷基酯。 这种共聚物相对于包含单一烷基丙烯酸酯共聚单体的先前乙烯共聚物显示较低的玻璃化转变温度（Tg），并且当用于产生固化的弹性体组合物以及改进的低温性能时，保持良好的耐热和耐流体性。 本发明还提供了包含这些共聚物和固化组合物（即硫化橡胶）的复合组合物以及由这些复合组合物形成的橡胶制品，例如软管，阻尼器，密封件，垫圈，等速万向节（CVJ）靴和轴靴。

公开(公告)号：US07608675B2

公开(公告)日：2009-10-27

申请号：US11479039

申请日：2006-06-30

申请人： Yun-Tai Wu ,  Mark Aaron Stewart ,  Yi Ye

发明人： Yun-Tai Wu ,  Mark Aaron Stewart ,  Yi Ye

IPC分类号： C08F220/10

CPC分类号： C08L23/0869 ,  C08L23/08 ,  C08L2205/02 ,  C08L2666/06

摘要： Disclosed are copolymers derived from copolymerization of from about 50 to about 70 weight % of methyl acrylate; from about 0.5 to about 5 weight % of 1,4-butene-dioic acid moieties, or anhydrides or monoalkyl esters thereof; the remainder being ethylene, wherein the copolymer has a number average molecular weight from about 40,000 to about 65,000 and a melt index from about 1 to about 6 g/10 minutes. Also disclosed are compounded compositions comprising these copolymers, and cured compositions (i.e., vulcanizates) as well as rubber articles formed from these compounded compositions, such as hoses, dampers, boots, seals, and gaskets for automotive and nonautomotive applications. Blends of other polymers with these copolymers are also disclosed.

摘要翻译： 公开了衍生自约50至约70重量％的丙烯酸甲酯的共聚的共聚物; 约0.5至约5重量％的1,4-丁二烯酸部分，或其酸酐或单烷基酯; 其余为乙烯，其中共聚物的数均分子量为约40,000至约65,000，熔体指数为约1至约6g / 10分钟。 还公开了包含这些共聚物和固化组合物（即硫化橡胶）的复合组合物以及由这些复合组合物形成的橡胶制品，例如用于汽车和非汽车应用的软管，阻尼器，靴子，密封件和垫圈。 还公开了其它聚合物与这些共聚物的共混物。

公开(公告)号：US07521503B2

公开(公告)日：2009-04-21

申请号：US11478949

申请日：2006-06-30

申请人： Yun-Tai Wu ,  Mark Aaron Stewart ,  Yi Ye

发明人： Yun-Tai Wu ,  Mark Aaron Stewart ,  Yi Ye

IPC分类号： C08L31/00 ,  C08F20/10 ,  C08F210/00

CPC分类号： C08F210/02 ,  C08K3/04 ,  C08K5/0016 ,  C08K5/16 ,  C08L23/0869 ,  C08L2666/02 ,  C08F220/12 ,  C08F220/14 ,  C08F2500/12 ,  C08F2500/04 ,  C08F2500/17

摘要： Disclosed are copolymers derived from ethylene and at least two different alkyl acrylate comonomers, with or without an acid cure site-containing comonomer. The copolymers can be derived from (a) from 10 to 50 weight % of ethylene; (b) 20 to 30 weight % of a first alkyl acrylate having from 1 to 4 carbons in the alkyl group; from 35 to 45 weight % of a second different alkyl acrylate having from 1 to 4 carbons in the alkyl group; and (d) from 0 to 5 weight % of a 1,4-butene-dioic acid moiety, or anhydride or monoalkyl ester thereof; the remainder being ethylene: wherein the copolymer has a number average molecular weight (Mn) above 40,000. Also disclosed are compounded compositions comprising these copolymers and cured compositions (i.e., vulcanizates) as well as rubber articles formed from these compounded compositions, such as constant velocity joint boots and shaft boots, hoses, dampers, seals and gaskets. These copolymers provide improved dynamic fatigue resistance of cured compounds while maintaining an expanded operating temperature range and oil resistance. Blends of other polymers with these copolymers are also disclosed.

摘要翻译： 公开了衍生自乙烯和至少两种不同的丙烯酸烷基酯共聚单体的共聚物，具有或不具有酸固化位点的共聚单体。 共聚物可以衍生自（a）10至50重量％的乙烯; （b）20〜30重量％的烷基中具有1〜4个碳原子的丙烯酸烷基酯; 35至45重量％的烷基中具有1至4个碳的第二种不同的丙烯酸烷基酯; 和（d）0至5重量％的1,4-丁烯二酸部分，或其酸酐或单烷基酯; 其余为乙烯：其中共聚物的数均分子量（Mn）高于40,000。 还公开了包含这些共聚物和固化组合物（即硫化橡胶）的复合组合物以及由这些复合组合物形成的橡胶制品，例如恒速接头靴和轴靴，软管，阻尼器，密封件和垫圈。 这些共聚物在保持扩展的工作温度范围和耐油性的同时提供了改进的固化化合物的动态抗疲劳性。 还公开了其它聚合物与这些共聚物的共混物。

公开(公告)号：US07544757B2

公开(公告)日：2009-06-09

申请号：US11478952

申请日：2006-06-30

申请人： Yun-Tai Wu ,  Mark Aaron Stewart ,  Yi Ye

发明人： Yun-Tai Wu ,  Mark Aaron Stewart ,  Yi Ye

IPC分类号： C08F220/10

CPC分类号： C08F220/14 ,  C08F210/02 ,  C08K5/0008 ,  C08L23/0869 ,  C08L33/08 ,  C08L2205/02 ,  C08L2312/00 ,  C08L2666/06 ,  C08L2666/04 ,  C08F220/12 ,  C08F2500/12

摘要： Disclosed are copolymers derived from ethylene and an alkyl acrylate comonomer wherein the copolymer has a number average molecular weight (Mn) above 40,000. This invention also provides compounded compositions and cured compositions (i.e., vulcanizates) comprising these copolymers. The copolymers provide improved dynamic fatigue resistance of the vulcanizates. Also disclosed are articles comprising the copolymers, such as tubing, hoses, dampers, seals and gaskets.

摘要翻译： 公开了衍生自乙烯和丙烯酸烷基酯共聚单体的共聚物，其中共聚物的数均分子量（Mn）高于40,000。 本发明还提供了包含这些共聚物的复合组合物和固化组合物（即硫化胶）。 共聚物提供改善的硫化橡胶的动态抗疲劳性。 还公开了包含共聚物的物品，例如管道，软管，阻尼器，密封件和垫圈。