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11. 发明授权

US06187248B1 Nanoporous polymer films for extreme low and interlayer dielectrics 失效
标题翻译：用于极低和层间电介质的纳米多孔聚合物膜
公开(公告)号：US06187248B1
公开(公告)日：2001-02-13
申请号：US09196452
申请日：1998-11-19
申请人： Mark Leonard O'Neill , Lloyd Mahlon Robeson , William Franklin Burgoyne, Jr. , Michael Langsam
发明人： Mark Leonard O'Neill , Lloyd Mahlon Robeson , William Franklin Burgoyne, Jr. , Michael Langsam
IPC分类号： B29C3508
CPC分类号： H01L21/02118 , C08J9/28 , C08J2201/0502 , C08J2201/0542 , H01B3/306 , H01B3/42 , H01B3/427 , H01B3/442 , H01L21/02203 , H01L21/02282 , H01L21/312 , H01L21/31695
摘要： A process for producing a nanoporous polymer film of no greater than 10 micron thickness having low dielectric constant value, including the steps of: (a) providing a polymer in a solution with at least two solvents for the polymer in which a lowest boiling solvent and a highest boiling solvent have a difference in their respective boiling points of approximately 50° C. or greater; (b) forming a film of the polymer in solution with at least the two solvents on a substrate; (c) removing a predominant amount of the lowest boiling solvent; (d) contacting the film with a fluid which is a non-solvent for the polymer, but which is miscible with the at least two solvents to induce phase inversion in the film; (e) forming an average pore size in the film in the range of less than 30 nanometers. The present invention is also nanoporous films made by the above process.
摘要翻译：一种用于制备具有低介电常数值的不大于10微米厚度的纳米多孔聚合物膜的方法，包括以下步骤：（a）在聚合物中提供聚合物至少两种溶剂，其中最低沸点溶剂和最高沸点溶剂的沸点相差约为50℃以上; （b）在基材上用至少两种溶剂在溶液中形成聚合物膜; （c）除去主要量的最低沸点溶剂; （d）使膜与用于聚合物的非溶剂的流体接触，但与至少两种溶剂可混溶以在膜中诱导相转化; （e）在小于30纳米的范围内形成膜中的平均孔径。本发明还是通过上述方法制备的纳米多孔膜。

12. 发明授权

US5939520A Gas separation membranes based on regiospecific polyamide-imides 失效
标题翻译：基于区域特异性聚酰胺 - 酰亚胺的气体分离膜
公开(公告)号：US5939520A
公开(公告)日：1999-08-17
申请号：US924729
申请日：1997-09-05
申请人： Michael Langsam
发明人： Michael Langsam
IPC分类号： B01D53/22 , B01D71/64 , C08G73/14 , C08G73/10
CPC分类号： B01D71/64 , B01D53/228 , C08G73/14 , Y10T428/31504 , Y10T428/31721
摘要： Regiospecific polyamide-imides are cast to form membranes which exhibit superior gas separation properties when compared to polyamide-imide membranes formed from random copolymers. The regiospecific polyamide-imides are synthesized by reacting specific aromatic diimide dicarboxylic acids with select aromatic diamines.
摘要翻译：与由无规共聚物形成的聚酰胺 - 酰亚胺膜相比，将区域特异性聚酰胺 - 酰亚胺浇铸成形成具有优异气体分离性能的膜。区域特异性聚酰胺 - 酰亚胺通过使特定芳族二酰亚胺二羧酸与选择性芳族二胺反应合成。

13. 发明授权

US4808679A Process for controlling the molecular weight of poly(trialkylsilylpropyne) polymers 失效
标题翻译：控制聚（三烷基甲硅烷基丙炔）聚合物分子量的方法
公开(公告)号：US4808679A
公开(公告)日：1989-02-28
申请号：US145854
申请日：1988-01-19
申请人： Michael Langsam
发明人： Michael Langsam
IPC分类号： C08F2/38 , C08F4/62 , C08F38/00 , C08F30/08
CPC分类号： C08F38/00
摘要： The present invention is a process for polymerizing trialkylsilylacetylene derived monomers to form the corresponding poly(trialkylsilylacetylene) polymer. The polymerization reaction is carried out in the presence of an organic solvent over a catalyst comprising a halide of a transition metal of group Vb or VIb. The molecular weight of the resultant polymer is decreased by adding to the reaction mixture, in a concentration between about 0.5-25 wt. %, a compound having the structural formula ##STR1## wherein each R is independently methyl, C.sub.2-4 alkyl or phenyl, and n is from 1 to 100.

14. 发明授权

US5034027A Membranes formed from rigid aromatic polyamides 失效
标题翻译：由刚性芳族聚酰胺形成的膜
公开(公告)号：US5034027A
公开(公告)日：1991-07-23
申请号：US502584
申请日：1990-03-30
申请人： Chao-Fong Tien , Andrew D. Surnamer , Michael Langsam
发明人： Chao-Fong Tien , Andrew D. Surnamer , Michael Langsam
IPC分类号： B01D71/56 , C08G69/26
CPC分类号： B01D71/56 , C08G69/26
摘要： The present invention is a class of polymeric membranes formed from aromatic polyamides derived from dicarboxylic acid chlorides and cardo diamines having alkyl substituents on all portions ortho to the amine functions. These polyamide membranes exhibit high gas permselectivities and are useful in various gas separation applications.

15. 发明授权

US4956095A Water or gas purification by bulk absorption 失效
标题翻译：水或气体通过大量吸收净化
公开(公告)号：US4956095A
公开(公告)日：1990-09-11
申请号：US459009
申请日：1989-12-29
申请人： Lloyd M. Robeson , Michael Langsam
发明人： Lloyd M. Robeson , Michael Langsam
IPC分类号： B01D53/14 , B01D53/72 , C02F1/28
CPC分类号： C02F1/285 , B01D53/1493 , B01D53/72
摘要： Water or gas containing organic impurities is purified by contact with a poly(trialkylsilylpropyne), such as poly[1-(trimethylsilyl)-1-propyne], operating as a bulk absorbent. Regeneration of the absorbent can be by vacuum or a stream of air.
摘要翻译：含有有机杂质的水或气体通过与聚（三烷基甲硅烷基丙炔）接触来纯化，例如聚[1-（三甲基甲硅烷基）-1-丙炔]作为体吸收剂。吸收剂的再生可以是真空或空气流。

16. 发明授权

US4657564A Fluorinated polymeric membranes for gas separation processes 失效
标题翻译：用于气体分离过程的氟化聚合物膜
公开(公告)号：US4657564A
公开(公告)日：1987-04-14
申请号：US808784
申请日：1985-12-13
申请人： Michael Langsam
发明人： Michael Langsam
IPC分类号： C08J5/18 , B01D53/22 , B01D67/00 , B01D71/44 , B01D71/70 , C08F8/20 , C08F8/22
CPC分类号： B01D67/0093 , B01D71/44 , C08F8/22 , Y10T428/31649
摘要： The present invention is a treated, semi-permeable, polymeric membrane having improved selectivity for separating components of a gas mixture. The membrane is provided by fluorinating a polymer cast into membrane form, having the general structural formula: ##STR1## wherein R.sub.1 is a linear or branched C.sub.1 -C.sub.4 alkyl group; R.sub.2 and R.sub.3 are independently linear or branched C.sub.1 -C.sub.6 alkyl groups; R.sub.4 is a linear or branched C.sub.1 -C.sub.12 alkyl or aryl group; X is a C.sub.1 -C.sub.3 alkyl group or ##STR2## m is at least 100; and n is 0 or 1.
摘要翻译：本发明是一种经处理的半渗透性聚合物膜，其具有改进的气体混合物组分分离选择性。膜通过氟化聚合物浇铸成膜形式提供，具有以下通式的结构式：其中R 1是直链或支链C 1 -C 4烷基; R2和R3独立地是直链或支链的C1-C6烷基; R4是直链或支链C1-C12烷基或芳基; X是C 1 -C 3烷基或m至少100; n为0或1。

17. 发明授权

US4451625A Reduction of wall fouling in the suspension polymerization of vinyl chloride homopolymer 失效
标题翻译：在氯乙烯均聚物的悬浮聚合中减少壁结垢
公开(公告)号：US4451625A
公开(公告)日：1984-05-29
申请号：US405638
申请日：1982-08-05
申请人： John T. C. Cheng , Michael Langsam
发明人： John T. C. Cheng , Michael Langsam
IPC分类号： C08F2/00 , C08F2/20
CPC分类号： C08F2/004
摘要： This invention relates to a method for reducing the amount of wall fouling in the suspension polymerization of vinyl chloride. The surfaces of the polymerization reactor are wetted with a solution containing from 5 to 50 wt % alkali metal hydroxide, 0.01 to 1 wt % free radical inhibitor and 0.01 to 1 wt % surface active agent prior to charging the vinyl chloride polymerization recipe to the reactor. Preferably, the surface of the wetted reactor is heated to a temperature from 40.degree. to 100.degree. C. for at least 5 minutes prior to charging the polymerization recipe.
摘要翻译：本发明涉及一种减少氯乙烯悬浮聚合中壁污染量的方法。在将氯乙烯聚合配方装入反应器之前，将聚合反应器的表面用含有5至50重量％碱金属氢氧化物，0.01至1重量％自由基抑制剂和0.01至1重量％表面活性剂的溶液润湿。优选地，在加入聚合配方之前，将润湿反应器的表面加热至40℃至100℃的温度至少5分钟。

18. 发明授权

US5045093A Gas separating membranes from polyimide polymers and a process for using the same 失效
标题翻译：气体分离膜与聚酰亚胺聚合物及其使用方法
公开(公告)号：US5045093A
公开(公告)日：1991-09-03
申请号：US598490
申请日：1990-10-16
申请人： Ingrid K. Meier , Michael Langsam
发明人： Ingrid K. Meier , Michael Langsam
IPC分类号： B01D67/00 , B01D71/64 , C08G73/10
CPC分类号： B01D67/0093 , B01D71/64 , C08G73/1039
摘要： The present invention is a class of semi-permeable polyimide membranes and a process for using such membranes to separate one or more components of a gaseous mixture. The membranes are prepared from a polyimide having surface-modifiable functionalities comprising repeating units formed from an aromatic dianhydride and a bridged alkylated bisaniline wherein the bridging group of the diamine possesses restricted, rotatable rigid or low Van Der Waal energy substituents which are orthogonal to the polymer backbone. The membranes formed therefrom are contacted in the presence of an oxygen source with an activating force such as high energy electromagnetic irradiation to effect modification of the polymer surface. The surface-modified polyimide membranes exhibit high gas perm-selectivities and are especially useful in effecting the separation of oxygen and nitrogen from air.
摘要翻译：本发明是一类半渗透性聚酰亚胺膜和使用这种膜分离气态混合物的一种或多种组分的方法。膜由具有表面修饰官能团的聚酰亚胺制备，该聚酰亚胺包含由芳族二酐和桥连烷基化双苯胺形成的重复单元，其中二胺的桥连基团具有与聚合物正交的限制的，可旋转的刚性或低范德瓦能量取代基骨干。由此形成的膜在氧源的存在下与诸如高能电磁照射的活化力接触，以实现聚合物表面的改性。表面改性的聚酰亚胺膜表现出高的气体选择性，并且特别可用于实现氧和氮与空气的分离。

19. 发明授权

US4902763A Process for the polymerization tri-substituted silylalkynes 失效
标题翻译：三取代甲硅烷基炔烃聚合方法
公开(公告)号：US4902763A
公开(公告)日：1990-02-20
申请号：US199566
申请日：1988-05-27
申请人： Ann C. Savoca , Michael Langsam
发明人： Ann C. Savoca , Michael Langsam
IPC分类号： C08F4/06 , B01D71/44 , C08F38/00
CPC分类号： C08F38/00 , B01D71/44
摘要： Polymeric trisubstituted silylalkynes useful for forming gas separation membranes are prepared at accelerated polymerization rates and with improved yields in the presence of a Group VV or VIB Metal halide catalyst such as TaCl.sub.5, by employing about 0.1 to 5 mole %, based upon total alkyne concentration, of a trialkylgermylalkyne compound.

20. 发明授权

US4759776A Polytrialkylgermylpropyne polymers and membranes 失效
标题翻译：聚三烷基锗烷基丙炔聚合物和膜
公开(公告)号：US4759776A
公开(公告)日：1988-07-26
申请号：US939312
申请日：1986-12-08
申请人： Michael Langsam , Ann C. L. Savoca
发明人： Michael Langsam , Ann C. L. Savoca
IPC分类号： B01D53/22 , B01D71/44 , B29C39/00 , C08F38/00 , C08J5/18 , C08J7/12 , C08J7/16 , B01D59/10
CPC分类号： C08F38/00 , B01D71/44
摘要： The present invention is a group of new polymers and treated, semi-permeable, polymeric membranes made from the new polymers, having improved selectivity for separating components of a gas mixture. The membrane is provided by fluorinating a polymer cast into membrane form, having the general structural formula: ##STR1## wherein R.sub.1 is H or a C.sub.1 -C.sub.2 alkyl group; R.sub.2 and R.sub.3 are independently linear or branched C.sub.1 -C.sub.6 alkyl groups; R.sub.4 is a linear or branched C.sub.1 -C.sub.12 alkyl or aryl group; X is a C.sub.1 -C.sub.3 alkyl group or phenyl; m is at least 100; and n is 0 or 1.
摘要翻译：本发明是由新型聚合物制成的一组新型聚合物和经处理的半透性聚合物膜，其具有改进的气体混合物组分分离选择性。膜通过氟化聚合物浇铸成膜形式提供，具有以下通式结构式：其中R 1是H或C 1 -C 2烷基; R2和R3独立地是直链或支链的C1-C6烷基; R4是直链或支链C 1 -C 12烷基或芳基; X是C1-C3烷基或苯基; m至少为100; n为0或1。

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