专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5286804A Halogenation of star-branched butyl rubber with improved neutralization 失效
标题翻译：具有改善中和性的星形支链丁基橡胶的卤化
公开(公告)号：US5286804A
公开(公告)日：1994-02-15
申请号：US761211
申请日：1991-09-17
申请人： Kenneth W. Powers , Hsien C. Wang , Robert N. Webb , James V. Fusco , Hans F. Vanbrackle , Michael F. McDonald, Jr.
发明人： Kenneth W. Powers , Hsien C. Wang , Robert N. Webb , James V. Fusco , Hans F. Vanbrackle , Michael F. McDonald, Jr.
IPC分类号： C08C19/12 , C08F8/20 , C08F210/12 , C08F8/18
CPC分类号： C08F8/20
摘要： A process for halogenating star-branched butyl rubber is provided wherein water and a wetting agent or wetting agent precursor are added to a solution comprising the star-branched butyl rubber, solid particles of branching agent and an organic solvent prior to the neutralization step to increase the rate of neutralization of the hydrogen halide by-product of the halogenation reaction.
摘要翻译：提供了一种卤化星形支链丁基橡胶的方法，其中在中和步骤之前，将水和润湿剂或润湿剂前体加入到包含星形支链丁基橡胶，支化剂固体颗粒和有机溶剂的溶液中以增加卤化反应的卤化氢副产物的中和速率。

2. 发明授权

US5182350A Ozone-resistant butyl elastomer 失效
标题翻译：耐臭氧丁基弹性体
公开(公告)号：US5182350A
公开(公告)日：1993-01-26
申请号：US605679
申请日：1990-10-30
申请人： James V. Fusco , Hsien-Chang Wang , Kenneth W. Powers
发明人： James V. Fusco , Hsien-Chang Wang , Kenneth W. Powers
IPC分类号： C08F210/12
CPC分类号： C08F210/12
摘要： Ozone resistant vulcanizable copolymers of isoolefins with non-conjugated dienes of the general formula: ##STR1## where R.sub.1 is ##STR2## and R.sub.2 is alkyl of 1 to 6 carbon atoms and vulcanizates thereof. The copolymers are prepared by polymerization in the presence of Lewis acids.
摘要翻译：异烯烃与具有以下通式的非共轭二烯的耐臭氧可硫化共聚物：其中R 1是R 1和R 2是1至6个碳原子的烷基和其硫化产物。共聚物通过在路易斯酸存在下聚合制备。

3. 发明授权

US5182333A Production of rubbery isoolefin polymers 失效
标题翻译：橡胶异烯烃聚合物的生产
公开(公告)号：US5182333A
公开(公告)日：1993-01-26
申请号：US791764
申请日：1991-11-12
申请人： Kenneth W. Powers , Hsien-Chang Wang , Debra C. Handy , James V. Fusco
发明人： Kenneth W. Powers , Hsien-Chang Wang , Debra C. Handy , James V. Fusco
IPC分类号： C08F10/10 , C08L23/22 , C08L23/28
CPC分类号： C08L23/22 , C08F10/10 , C08L23/283 , Y10S525/918
摘要： A substantially gel free C.sub.4 to C.sub.7 isoolefin homopolymer rubber, butyl copolymer rubber, halogenated butyl rubber (e.g., chlorinated or brominated), or mixtures thereof, comprising a molecular weight distribution such that the ratio of the moments of said molecular weight distribution, Mz/Mw, is equal to or exceeds 2.0, and that portion of said molecular weight distribution which is equal to and greater than 4 times the peak molecular weight, Mp, comprises greater than 8 percent of the total polymer species, and Mp is greater than about 250,000 and wherein said polymer species of molecular weight less than Mp are substantially branch free. Various means are disclosed for effecting the molecular weight distribution including blending of homopolymers and/or copolymers of appropriate molecular weight and molecular weight distribution and direct polymerization using a functional reagent to introduce branching. The rubber compositions are particularly useful in applications in which butyl or halogenated butyl rubber is used and where it is desired to obtain high green strength in combination with an increased rate of stress relaxation. Such polymers are particularly well suited for use in tire innerliner compositions.
摘要翻译：基本上不含凝胶的C4至C7异烯烃均聚物橡胶，丁基共聚物橡胶，卤化丁基橡胶（例如，氯化或溴化）或其混合物，其包含分子量分布，使得所述分子量分布的时间比Mz / Mw等于或超过2.0，等于和大于峰分子量Mp的4倍的分子量分布的那部分包含大于总聚合物种类的8％，并且M p大于约 250,000，并且其中分子量小于Mp的所述聚合物种类基本上无分支。公开了用于实现分子量分布的各种方法，包括使用适当的分子量和分子量分布的均聚物和/或共聚物的共混，并使用官能试剂引入支化的直接聚合。橡胶组合物在使用丁基或卤代丁基橡胶的应用中特别有用，并且其中期望获得高的绿色强度并且结合增加的应力松弛速率。这种聚合物特别适用于轮胎内衬组合物。

4. 发明授权

US5071913A Rubbery isoolefin polymers exhibiting improved processability 失效
标题翻译：橡胶树脂聚合物展现出改进的可加工性
公开(公告)号：US5071913A
公开(公告)日：1991-12-10
申请号：US131938
申请日：1987-12-11
申请人： Kenneth W. Powers , Hsien-Chang Wang , Debra C. Handy , James V. Fusco
发明人： Kenneth W. Powers , Hsien-Chang Wang , Debra C. Handy , James V. Fusco
IPC分类号： C08L23/20 , B60C1/00 , C08F10/10 , C08F210/12 , C08L23/18 , C08L23/22 , C08L23/28
CPC分类号： B60C1/0008 , C08F10/10 , C08F210/12 , C08L23/22 , C08L23/283 , Y10S525/918
摘要： A substantially gel free C.sub.4 to C.sub.7 isoolefin homopolymer rubber, butyl copolymer rubber, halogenated butyl rubber (e.g., chlorinated or brominated), or mixtures thereof, comprising a molecular weight distribution such that the ratio of the moments of said molecular weight distribution, Mz/Mw, is equal to or exceeds 2.0, and that portion of said molecular weight distribution which is equal to and greater than 4 times the peak molecular weight, Mp, comprises greater than 8 percent of the total polymer species, and Mp is greater than about 250,000 and wherein said polymer species of molecular weight less than Mp are substantially branch free. Various means are disclosed for effecting the molecular weight distribution including blending of homopolymers and/or copolymers of appropriate molecular weight and molecular weight distribution and direct polymerization using a functional reagent to introduce branching. The rubber compositions are particularly useful in applications in which butyl or halogenated butyl rubber is used and where it is desired to obtain high green strength in combination with an increased rate of stress relaxation. Such polymers are particularly well suited for use in tire innerliner compositions.

5. 发明授权

US5244961A Thermoplastic compositions and process for preparing the same 失效
标题翻译：热塑性组合物及其制备方法
公开(公告)号：US5244961A
公开(公告)日：1993-09-14
申请号：US762284
申请日：1991-09-19
申请人： Thomas C. Yu , Hsien C. Wang , Kenneth W. Powers
发明人： Thomas C. Yu , Hsien C. Wang , Kenneth W. Powers
IPC分类号： C08K3/10 , C08K3/22 , C08L23/00 , C08L23/18 , C08L23/20 , C08L23/28 , C08L25/00 , C08L25/16 , C08L25/18 , C08L77/00
CPC分类号： C08L23/283 , C08K3/22 , C08L77/00
摘要： A non-vulcanized thermoplastic composition comprising a polyamide and an elastomeric halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene is prepared by blending the polyamide and elastomeric copolymer in the presence of specified metal compounds in an amount insufficient for vulcanizing the composition. Optionally, the resulting composition may be subjected to vulcanization.
摘要翻译：包含聚酰胺和C4-C7异单烯烃和对烷基苯乙烯的弹性体含卤素共聚物的非硫化热塑性组合物通过在特定金属化合物的存在下共混聚酰胺和弹性体共聚物而制备，其量不足以硫化组成。任选地，所得组合物可以进行硫化。

6. 发明授权

US06939933B2 Process for polymerizing cationically polymerizable monomers 有权
标题翻译：聚合阳离子聚合单体的方法
公开(公告)号：US06939933B2
公开(公告)日：2005-09-06
申请号：US10433444
申请日：2001-02-14
申请人： Robert N. Webb , David Y. Chung , Andrew B. Donnalley , Michael F. McDonald , Kenneth W. Powers , Ralph Howard Schatz
发明人： Robert N. Webb , David Y. Chung , Andrew B. Donnalley , Michael F. McDonald , Kenneth W. Powers , Ralph Howard Schatz
IPC分类号： C08F2/04 , C08F4/00 , C08F4/06 , C08F4/12 , C08F4/14 , C08F110/10 , C08F210/10 , C08F210/12 , C08F236/04 , C08F2/00
CPC分类号： C08F110/10 , C08F210/10 , C08F210/12 , C08F236/04 , C08F2/38 , C08F4/12 , C08F4/16 , C08F4/00 , C08F4/06 , C08F2/14 , C08F4/52 , C08F4/14 , C08F236/06
摘要： The invention relates to a new catalyst system that improves the heat transfer capability of a butyl reactor slurry process system in the production of random copolymers of one or more isoolefin monomers and one or more conjugated diene monomers in continuous slurry polymerization processes. The process is carried out in an anhydrous polymerization system containing a mixture of the monomers in a polar diluent along with a Lewis acid and a C5 or greater initiator having a tertiary halide.
摘要翻译：本发明涉及一种新的催化剂体系，其改进丁基反应器浆料工艺系统在连续淤浆聚合方法中生产一种或多种异构烯烃单体和一种或多种共轭二烯单体的无规共聚物的传热能力。该方法在含有极性稀释剂中的单体与路易斯酸和具有叔卤酸酯的C 5或更多引发剂的混合物的无水聚合体系中进行。

7. 发明授权

US4474924A Stabilized slurries of isoolefin polymers 失效
标题翻译：稳定的异烯烃聚合物浆料
公开(公告)号：US4474924A
公开(公告)日：1984-10-02
申请号：US461678
申请日：1983-01-27
申请人： Kenneth W. Powers , Hsien C. Wang
发明人： Kenneth W. Powers , Hsien C. Wang
IPC分类号： C08L23/18 , C08F2/00 , C08F2/04 , C08F2/06 , C08F6/00 , C08F6/06 , C08F6/24 , C08F8/00 , C08F8/04 , C08F10/00 , C08F10/10 , C08F210/12 , C08L7/00 , C08L21/00 , C08L23/00 , C08L23/20 , C08L23/22 , C08L51/00 , C08L51/02 , C08L53/00 , C08L77/00 , C08L101/00 , C08K5/02
CPC分类号： C08F8/04 , C08F6/24 , C08L23/22 , Y10S524/923
摘要： Polymerization slurries of elastomeric isoolefin homopolymers and copolymers, such as butyl rubber, in diluents such as methyl chloride are effectively stabilized against agglomeration of polymer particles through addition of minor proportions of an hydrogenated preformed copolymer stabilizer having both a lyophobic and a lyophilic portion. The chemical and structural nature of the lyophobic and lyophilic portions which comprise the copolymer stabilizer are significant in determining the extent and method of hydrogenation for production of the most effective stabilizer. Agglomeration of polymer products is effectively prevented, yielding a number of significant processing advantages. The process is especially adaptable to the production of isobutylene-isoprene butyl rubber.
摘要翻译：弹性体异烯烃均聚物和共聚物如丁基橡胶在稀释剂如氯甲烷中的聚合浆料通过加入少量比例的具有疏液性和亲液性部分的氢化预成型共聚物稳定剂，有效地稳定了聚合物颗粒的聚集。包含共聚物稳定剂的疏液和亲液部分的化学和结构性质在确定生产最有效稳定剂的氢化程度和方法方面是显着的。有效防止了聚合物产品的聚集，产生了许多显着的加工优点。该方法特别适用于异丁烯 - 异戊二烯丁基橡胶的生产。

8. 发明授权

US06620898B2 Production of polyisobutylene copolymers 失效
公开(公告)号：US06620898B2
公开(公告)日：2003-09-16
申请号：US10138466
申请日：2002-05-03
申请人： Robert N. Webb , Kenneth W. Powers , Michael F. McDonald , Ralph Howard Schatz
发明人： Robert N. Webb , Kenneth W. Powers , Michael F. McDonald , Ralph Howard Schatz
IPC分类号： C08F214
CPC分类号： C08F210/10 , C08F4/005 , C08F4/14 , C08F4/16 , C08F4/54 , C08F2/14 , C08F4/12 , C08F4/00 , C08F212/06
摘要： The invention relates to a new improved catalyst to produce random copolymers of one or more iso-olefin monomers and one or more para-alkylstyrene monomers. The invention also relates to an improved continuous slurry polymerization process to produce random copolymers using the improved catalyst system. The process is carried out in an anhydrous polymerization system containing a mixture of the monomers in a polar solvent along with a Lewis acid and a stabilizing initiator.

9. 发明授权

US06444768B1 Production of polyisobutylene copolymers 失效
公开(公告)号：US06444768B1
公开(公告)日：2002-09-03
申请号：US09684713
申请日：2000-10-06
申请人： Robert N. Webb , Kenneth W. Powers , Michael F. McDonald , Ralph Howard Schatz
发明人： Robert N. Webb , Kenneth W. Powers , Michael F. McDonald , Ralph Howard Schatz
IPC分类号： C08F21206
CPC分类号： C08F210/10 , C08F4/005 , C08F4/14 , C08F4/16 , C08F4/54 , C08F2/14 , C08F4/12 , C08F4/00 , C08F212/06
摘要： The invention relates to a new improved catalyst to produce random copolymers of one or more iso-olefin monomers and one or more para-alkylstyrene monomers. The invention also relates to an improved continuous slurry polymerization process to produce random copolymers using the improved catalyst system. The process is carried out in an anhydrous polymerization system containing a mixture of the monomers in a polar solvent along with a Lewis acid and a stabilizing initiator.

10. 发明授权

US5369182A Impact modification of polyamides 失效
标题翻译：聚酰胺的冲击改性
公开(公告)号：US5369182A
公开(公告)日：1994-11-29
申请号：US200846
申请日：1994-02-22
申请人： Thomas C. Yu , Kenneth W. Powers , Hsien C. Wang
发明人： Thomas C. Yu , Kenneth W. Powers , Hsien C. Wang
IPC分类号： C08J3/22 , C08L23/02 , C08L23/26 , C08L23/28 , C08L77/00 , C08L23/16 , C08L23/18
CPC分类号： C08L77/00 , C08L23/283
摘要： The invention relates to impact modifiers for polyamide compositions which improve the impact strength of the polyamides without adversely affecting the flexural modulus of the composition. The impact modifiers comprise blends of halogenated copolymers of a C.sub.4 to C.sub.7 isomonoolefin and an alkyl/styrene with a polyolefin.
摘要翻译：本发明涉及聚酰胺组合物的抗冲改性剂，其改善聚酰胺的冲击强度，而不会对组合物的弯曲模量产生不利影响。冲击改性剂包括C4至C7异单烯烃的卤化共聚物和烷基/苯乙烯与聚烯烃的共混物。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式