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11. 发明授权

US4644020A Production of high molecular weight vinyl lactam polymers and copolymers 失效
标题翻译：生产高分子量乙烯基内酰胺聚合物和共聚物
公开(公告)号：US4644020A
公开(公告)日：1987-02-17
申请号：US461707
申请日：1983-01-28
申请人： G. Allan Stahl
发明人： G. Allan Stahl
IPC分类号： C08F4/04 , C08F226/06 , C09K8/24 , C09K8/588 , C09K8/592 , C09K8/62 , E21B43/24 , C08F4/08 , C08F26/10 , C09K7/00
CPC分类号： C09K8/24 , C08F226/06 , C09K8/588 , C09K8/592 , C09K8/62 , E21B43/24 , Y10S507/936 , Y10S522/911
摘要： Water-soluble polymers comprising an N-vinyl lactam are found to be useful in processes wherein the polymer is introduced into a subterranean wellbore.Polymers useful in the recovery of natural resources are prepared by polymerizing an N-vinyl lactam by free radical initiation, with polymerization conducted in an aqueous solution polymerization medium preferably containing a mixture of dissolved electrolytes, or in a polymerization medium consisting essentially of a tertiary alkanol. Copolymers of such N-vinyl lactams with unsaturated amides, and terpolymers prepared by polymerizing an N-vinyl lactam and an unsaturated amide with a selected termonomer compound are also useful when prepared by these methods.
摘要翻译：发现包含N-乙烯基内酰胺的水溶性聚合物可用于将聚合物引入地下井眼的方法中。通过自由基引发聚合N-乙烯基内酰胺来制备用于回收天然资源的聚合物，聚合在优选含有溶解的电解质的混合物的水溶液聚合介质中进行，或者在基本上由叔烷醇组成的聚合介质中。这种N-乙烯基内酰胺与不饱和酰胺的共聚物和通过使用选择的单体化合物聚合N-乙烯基内酰胺和不饱和酰胺制备的三元共聚物在通过这些方法制备时也是有用的。

12. 发明授权

US4578201A N-vinyl lactam/unsaturated amide copolymers in thickened acid compositions 失效
标题翻译： N-乙烯基内酰胺/不饱和酰胺共聚物在增稠酸组合物中
公开(公告)号：US4578201A
公开(公告)日：1986-03-25
申请号：US586504
申请日：1984-03-05
申请人： Lyle D. Burns , G. Allan Stahl
发明人： Lyle D. Burns , G. Allan Stahl
IPC分类号： C09K8/62 , C09K8/72 , E21B43/27
CPC分类号： C09K8/882 , C09K8/602 , C09K8/68 , C09K8/76 , Y10S507/933
摘要： Water soluble thickened acid compositions suitable for matrix or fracture acidizing are provided comprising water, an acid, and a water thickening amount of a copolymer of a N-vinyl lactam and an unsaturated amide. This composition can contain in addition a crosslinking agent to give a gelled acid composition. In a preferred embodiment, a lactam-containing copolymer is made in a diluent containing dissolved electrolytes. These compositions are particularly useful in acid or matrix fracturing in subterranean formations exhibiting a hostile environment, as exemplified by high temperatures and/or high concentration of multivalent metal cations.
摘要翻译：提供适用于基质或断裂酸化的水溶性增稠酸组合物，其包含水，酸和水增稠量的N-乙烯基内酰胺和不饱和酰胺的共聚物。此外，该组合物还可以含有交联剂，得到胶凝酸组合物。在优选的实施方案中，含有内酰胺的共聚物在含有溶解的电解质的稀释剂中制备。这些组合物特别可用于表现出敌对环境的地下地层的酸性或基质压裂，如高温和/或高浓度的多价金属阳离子所示例。

13. 发明授权

US07470748B2 Polymeric fibers and fabrics 失效
标题翻译：聚合纤维和织物
公开(公告)号：US07470748B2
公开(公告)日：2008-12-30
申请号：US11193592
申请日：2005-07-29
申请人： Chia Y. Cheng , G. Allan Stahl
发明人： Chia Y. Cheng , G. Allan Stahl
IPC分类号： C08L23/00 , C08L23/04 , B28B3/20 , B29C47/00
CPC分类号： C08L23/10 , C08L23/0815 , C08L2203/12 , C08L2666/06
摘要： Polymeric fibers and nonwoven polymeric fabrics having improved softness characteristics are provided. The fibers and fabrics include either a random propylene copolymer or a blend of a polypropylene polymer and a low-density polyethylene polymer. The random propylene copolymer is produced through metallocene-catalyzed and Z-N polymerization and includes from 80 wt. % to 98 wt. % of propylene-derived units and from 2 wt. % to 20 wt. % ethylene-derived units. The low-density polyethylene polymer is also produced through metallocene-catalyzed polymerization and has a melt index of greater than 10 and a molecular weight distribution of 1.5 to 4. The fibers may be produced using a variety of processes including melt blowing, melt spinning, and spunbonding. The fibers may be converted into nonwoven fabrics through conventional techniques.
摘要翻译：提供了具有改善的柔软特性的聚合纤维和非织造聚合物织物。纤维和织物包括无规丙烯共聚物或聚丙烯聚合物和低密度聚乙烯聚合物的共混物。通过茂金属催化和Z-N聚合制备无规丙烯共聚物，包括80wt。％至98wt。丙烯衍生单元的％和2重量％％至20重量％％乙烯衍生单元。低密度聚乙烯聚合物也是通过茂金属催化聚合制备的，其熔体指数大于10，分子量分布为1.5-4。纤维可以使用各种方法制备，包括熔融吹塑，熔融纺丝，和纺粘。纤维可以通过常规技术转化成非织造织物。

14. 发明授权

US4690219A Acidizing using n-vinyl lactum/unsaturated amide copolymers 失效
标题翻译：使用n-乙烯基乳酸/不饱和酰胺共聚物进行酸化
公开(公告)号：US4690219A
公开(公告)日：1987-09-01
申请号：US805030
申请日：1985-12-05
申请人： Lyle D. Burns , G. Allan Stahl
发明人： Lyle D. Burns , G. Allan Stahl
IPC分类号： C09K8/62 , C09K8/72 , E21B43/27
CPC分类号： C09K8/68 , C09K8/74 , C09K8/882 , Y10S507/923 , Y10S507/933
摘要： Water soluble thickened acid compositions suitable for matrix or fracture acidizing are provided comprising water, an acid, and a water thickening amount of a copolymer of a N-vinyl lactam and an unsaturated amide. This composition can contain in addition a crosslinking agent to give a gelled acid composition. In a preferred embodiment, a lactam-containing copolymer is made in a diluent containing dissolved electrolytes. These compositions are particularly useful in acid or matrix fracturing in subterranean formations exhibiting a hostile environment, as exemplified by high temperatures and/or high concentration of multivalent metal cations.
摘要翻译：提供适用于基质或断裂酸化的水溶性增稠酸组合物，其包含水，酸和水增稠量的N-乙烯基内酰胺和不饱和酰胺的共聚物。此外，该组合物还可以含有交联剂，得到胶凝酸组合物。在优选的实施方案中，含有内酰胺的共聚物在含有溶解的电解质的稀释剂中制备。这些组合物特别可用于表现出敌对环境的地下地层的酸性或基质压裂，如高温和/或高浓度的多价金属阳离子所示例。

15. 发明授权

US4511677A Ion exchange-active compositions consisting of water-soluble polyelectrolyte upon ion exchange functional substrate 失效
标题翻译：由离子交换功能底物上的水溶性聚电解质组成的离子交换活性组合物
公开(公告)号：US4511677A
公开(公告)日：1985-04-16
申请号：US548051
申请日：1983-11-02
申请人： Robert L. Horton , G. Allan Stahl
发明人： Robert L. Horton , G. Allan Stahl
IPC分类号： B01J39/16 , B01J47/00 , C01G3/00 , C01G49/00 , C22B60/02 , B01J39/06 , C01G56/00 , C01G57/00
CPC分类号： C01G3/003 , B01J39/165 , B01J47/006 , C01G49/0009 , C22B3/42 , C22B60/0265 , Y02P10/234
摘要： A new class of ion exchange agents comprises water soluble polymers called polyelectrolytes sorbed onto ion exchange functional substrates.
摘要翻译：一类新的离子交换剂包括吸附在离子交换功能底物上的称为聚电解质的水溶性聚合物。

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