公开(公告)号：US4990335A

公开(公告)日：1991-02-05

申请号：US165230

申请日：1988-05-12

申请人： Linda R. Bateman ,  Robert C. Di Luccio ,  Clare A. Stewart, Jr. ,  Donna L. Visioli ,  David P. Beach-Coffin

发明人： Linda R. Bateman ,  Robert C. Di Luccio ,  Clare A. Stewart, Jr. ,  Donna L. Visioli ,  David P. Beach-Coffin

IPC分类号： A61K9/20 ,  C11D17/00

CPC分类号： C11D17/0073 ,  A61K9/2027

摘要： Method of making tablets for active ingredient delivery by compressing a mixture of active ingredient and granular, high viscosity, fully hydrolyzed polyvinyl alcohol or copolymer of vinyl alcohol with methyl acrylate or methyl methacrylate. By use of a crystalline, heat treated polymer, a tablet providing quick active ingredient release is obtained. By using an amorphous, non-heat treated polymer a tablet providing prolonged active ingredient release is obtained. By using blends of crystalline and amorphous polymers, tablets having a range of active ingredient release characteristics can be obtained. The granular, high viscosity, fully hydrolyzed polymers provide flowability, compressibility and processing versatility advantages over conventional tablet binders.

摘要翻译： 通过压缩活性成分和颗粒状，高粘度，完全水解的聚乙烯醇或乙烯醇与丙烯酸甲酯或甲基丙烯酸甲酯的共聚物的混合物制备用于活性成分递送的片剂的方法。 通过使用结晶的经热处理的聚合物，获得了提供快速活性成分释放的片剂。 通过使用无定形的未加热处理的聚合物，获得延长的活性成分释放的片剂。 通过使用结晶和无定形聚合物的混合物，可以获得具有一定范围的活性成分释放特性的片剂。 颗粒状，高粘度，完全水解的聚合物提供了流畅性，压缩性和加工多功能性优于传统的片剂粘合剂。

公开(公告)号：US4605800A

公开(公告)日：1986-08-12

申请号：US458554

申请日：1983-01-17

申请人： Joseph F. Englert, Jr. ,  Louis J. Maurin, III ,  Clare A. Stewart, Jr.

发明人： Joseph F. Englert, Jr. ,  Louis J. Maurin, III ,  Clare A. Stewart, Jr.

IPC分类号： B01J31/00 ,  C07B61/00 ,  C07C17/00 ,  C07C17/25 ,  C07C21/21 ,  C07C67/00 ,  C07C17/34

CPC分类号： C07C21/21 ,  C07C17/25 ,  Y02P20/584

摘要： An improved process for the catalytic dehydrochlorination of 3,4-dichlorobutene-1 with aqueous alkali, wherein the effluent from the dehydrochlorination reactor is separated into phases, and the organic phase is steam-stripped at low temperature (below about 80.degree. C.) to recover chloroprene product, while the steam stripper heels are returned to the dehydrochlorination reactor. A small portion of the heels are purged prior to being recycled. Most of the catalyst is recovered and returned to the reaction, but a small amount of make-up catalyst is added. Chloroprene made in this process is a valuable monomer which finds use in the manufacture of a broad line of synthetic elastomers of considerable industrial interest.

摘要翻译： 用碱水溶液对3,4-二氯丁烯-1进行催化脱氯化氢的改进方法，其中将来自脱氯化氢反应器的流出物分离成相，有机相在低温（低于约80℃）下蒸汽汽提。 以回收氯丁二烯产物，而蒸汽汽提塔高跟鞋则返回脱氯化氢反应器。 高跟鞋的一小部分在被回收之前被清除。 大部分催化剂被回收并返回到反应中，但加入少量补充催化剂。 在该方法中制备的氯丁二烯是一种有价值的单体，可用于生产具有相当大的工业感兴趣的广泛的合成弹性体系。

公开(公告)号：US4335238A

公开(公告)日：1982-06-15

申请号：US193375

申请日：1980-10-06

申请人： Albert L. Moore ,  Clare A. Stewart, Jr. ,  Isadore Swerlick

发明人： Albert L. Moore ,  Clare A. Stewart, Jr. ,  Isadore Swerlick

IPC分类号： C08F14/00 ,  C08F14/28 ,  C08F214/22 ,  C08F214/26 ,  C08J7/04 ,  C08F214/28

CPC分类号： C08J7/047 ,  C08F214/22 ,  C08F214/26 ,  C08J2427/00 ,  Y10T428/3154

摘要： Terpolymer consisting of 12 to 48% by weight TFE units, 7 to 24% by weight HFP units and 30 to 81% by weight VF.sub.2 units, provided that when the content of TFE units is less than 42% by weight, the content of HFP units is less than 15% by weight. Heat-stable films such as polyimide film can be coated with a coating comprising the terpolymer to provide heat-sealable film useful as wire insulation.

摘要翻译： 由12至48重量％的TFE单元，7至24重量％的HFP单元和30至81重量％的VF 2单元组成的三元共聚物，条件是当TFE单元的含量小于42重量％时，HFP的含量 单位小于15重量％。 可以用包含三元共聚物的涂层涂覆聚酰亚胺膜等热稳定膜，以提供可用作电线绝缘的可热封膜。

公开(公告)号：US5064935A

公开(公告)日：1991-11-12

申请号：US561468

申请日：1990-08-01

申请人： Roy Jackson ,  David J. Lowe ,  Clare A. Stewart

发明人： Roy Jackson ,  David J. Lowe ,  Clare A. Stewart

IPC分类号： C08G63/183 ,  C08G63/78

CPC分类号： C08G63/78

摘要： Economic and efficient process for preparing an oligomer of poly(butylene terephthalate) or an oligomer of poly(butylene isophthalate) from a transesterification reaction mass by using a countercurrent column reactor system wherein the transesterification reaction mass is fed into the countercurrent column reactor and continuously flows downward while simultaneously a heated inert gas stream continuously flows upward to scrub out volatiles from the transesterification reaction mass, thereby yielding from the bottom of the countercurrent column reactor an oligomer of poly(butylene terephthalate) or an oligomer of poly(butylene isophthalate) suitable for use in a polycondensation reaction. Butanediol is recycled throughout the process through an absorber column.

公开(公告)号：US4123603A

公开(公告)日：1978-10-31

申请号：US801567

申请日：1977-05-31

申请人： Clare A. Stewart, Jr.

发明人： Clare A. Stewart, Jr.

IPC分类号： C08F14/00 ,  C08F2/00 ,  C08F2/18 ,  C08F4/00 ,  C08F4/28 ,  C08F14/22 ,  C08F14/28 ,  C08F214/22 ,  C08F214/26

CPC分类号： C08F214/22

摘要： An elastomeric fluoropolymer having improved low temperature properties is provided. The composition contains polymerized units of 57-61 weight % vinylidene fluoride, 27-31 weight % hexafluoropropene, and 10-14 weight % tetrafluoroethylene.

摘要翻译： 提供了具有改进的低温性能的弹性体含氟聚合物。 该组合物包含57-61重量％偏二氟乙烯，27-31重量％六氟丙烯和10-14重量％四氟乙烯的聚合单元。