专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明授权

US5548039A Polymer scale deposition preventive agent 失效
标题翻译：聚合物垢沉积预防剂
公开(公告)号：US5548039A
公开(公告)日：1996-08-20
申请号：US364498
申请日：1994-12-27
申请人： Toshihide Shimizu , Mikio Watanabe
发明人： Toshihide Shimizu , Mikio Watanabe
IPC分类号： C08F2/00 , C08F116/12 , C08F118/04 , C08F120/06 , C08F120/10 , C08F120/44 , C08F122/06 , C08F136/04 , C08F114/106
CPC分类号： C08F2/004
摘要： A polymer scale deposition preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising an alkaline solution containing a condensation product of (A) an anthraquinone compound having at least two amino groups and (B) at least one compound selected from the group consisting of benzoquinone compounds and naphthoquinone compounds. When the monomer is polymerized in a polymerization vessel having a coating formed by applying the aforementioned preventive agent to inner wall surfaces followed by drying, polymer scale can be effectively prevented from being deposited not only on the areas located in the liquid-phase region but also on the areas around the interface between the gas and liquid phases in the polymerization vessel. When an obtained polymer is formed into a sheet or the like, it is possible to obtain a formed product having few fish eyes and low initial coloration.
摘要翻译：一种用于聚合具有烯键式不饱和双键的单体的聚合物垢沉积防止剂，其包含含有（A）具有至少两个氨基的蒽醌化合物和（B）至少一种选自下列化合物的缩合产物的碱性溶液：由苯醌化合物和萘醌化合物组成。当单体在具有通过将上述预防剂施加到内壁表面并随后干燥而形成的涂层的聚合容器中聚合时，可以有效地防止聚合物垢不仅沉积在位于液相区域的区域，而且还沉积在在聚合容器中的气相和液相之间的界面周围的区域。当获得的聚合物形成片材等时，可以获得鱼眼少且初始着色低的成形物。

62. 发明授权

US5408006A Superabsorbent acrylic powders prepared via improved suspension polymerization 失效
标题翻译：通过改进的悬浮聚合制备超吸收性丙烯酸粉末
公开(公告)号：US5408006A
公开(公告)日：1995-04-18
申请号：US104756
申请日：1993-08-12
申请人： Shu R. Rebre , Christian Collette , Thierry Guerin
发明人： Shu R. Rebre , Christian Collette , Thierry Guerin
IPC分类号： A61L15/60 , C08F2/18 , C08F2/32 , C08F120/00 , C08F120/06 , G08F265/02
CPC分类号： C08F2/32 , A61L15/60
摘要： Particulates of a superabsorbent polymer, e.g., an acrylic polymer such as polyacrylic acid, well suited for a variety of hygienic applications, are prepared by (i) suspending an aqueous solution of a water-soluble monomer charge I in a hydrocarbon medium by means of a polymerizable surfactant having the general formula:R.sub.1 --O--(CH.sub.2 --CH.sub.2 --O).sub.n --R.sub.2wherein R.sub.1 is a hydrocarbon having at least 9 carbon atoms, R.sub.2 is an acryloyl, methacryloyl or maleoyl radical, and the degree of condensation n in respect of the ethylene oxide ranges from 30 to 70, (ii) polymerizing the suspension thus formed, producing a suspension of polymer gel particles and converting the surfactant to effectively remove same from the medium of polymerization, (iii) next absorbing a second monomer charge II into such gel particles, and (iv) polymerizing in the gel particles the second monomer charge II.
摘要翻译：通过（i）通过（i）将水溶性单体电荷I的水溶液悬浮在烃介质中，通过以下方法制备超吸收聚合物，例如丙烯酸聚合物如聚丙烯酸，例如聚丙烯酸，其适用于各种卫生应用，具有以下通式的可聚合表面活性剂：R1-O-（CH2-CH2-O）n-R2其中R1是具有至少9个碳原子的烃，R2是丙烯酰基，甲基丙烯酰基或马来酰基，缩合度n 对于环氧乙烷的范围为30至70，（ii）使由此形成的悬浮液聚合，产生聚合物凝胶颗粒的悬浮液并转化表面活性剂以有效地从聚合介质中除去，（iii）接下来吸收第二单体将电荷II转化成这样的凝胶颗粒，和（iv）在凝胶颗粒中聚合第二单体电荷II。

63. 发明授权

US4622425A Process for the preparation of aqueous solutions of low molecular weight polyacrylic acids or their salts 失效
标题翻译：制备低分子量聚丙烯酸或其盐的水溶液的方法
公开(公告)号：US4622425A
公开(公告)日：1986-11-11
申请号：US450137
申请日：1982-12-15
申请人： Pierre Gagne
发明人： Pierre Gagne
IPC分类号： C08F2/10 , C08F8/44 , C08F120/06
CPC分类号： C08F120/06 , C08F8/44
摘要： A process for the manufacture of low molecular weight polyacrylic acids or their salts is provided, particularly, their aqueous solutions. Acrylic acid in an aqueous solution containing a polymerization initiator is polymerized in the presence of acetic acid and/or propionic acid.The solutions obtained have a low viscosity and are very stable on storage.
摘要翻译：提供了制备低分子量聚丙烯酸或其盐的方法，特别是其水溶液。含有聚合引发剂的水溶液中的丙烯酸在乙酸和/或丙酸的存在下聚合。获得的溶液具有低粘度并且在储存时非常稳定。

64. 发明授权

US3490939A Ablative resin 失效
标题翻译：酚醛树脂
公开(公告)号：US3490939A
公开(公告)日：1970-01-20
申请号：US3490939D
申请日：1966-05-23
申请人： NASA
发明人： LUBOWITZ HYMAN R , BURNS EUGENE A , KENDRICK WILLIAM P
IPC分类号： C08F120/06 , C23C18/02 , C23C11/02
CPC分类号： C08J7/08 , C08F120/06 , C08J2333/02 , Y10T428/31511 , Y10T428/31942

65. 发明授权

US3058958A Continuous polymerization of acrylic salts 失效
标题翻译：丙烯酸盐的连续聚合
公开(公告)号：US3058958A
公开(公告)日：1962-10-16
申请号：US78852459
申请日：1959-01-23
申请人： ROHM & HAAS
发明人： GLAVIS FRANK J
IPC分类号： C08F120/06
CPC分类号： C08F120/06

66. 发明申请

US20230136909A1 MICROORGANISMS AND METHODS FOR ENHANCING THE AVAILABILITY OF REDUCING EQUIVALENTS IN THE PRESENCE OF METHANOL, AND FOR PRODUCING 3-HYDROXYISOBUTYRATE OR METHACRYLIC ACID RELATED THERETO 有权
公开(公告)号：US20230136909A1
公开(公告)日：2023-05-04
申请号：US17833695
申请日：2022-06-06
申请人： Genomatica, Inc.
发明人： Anthony P. Burgard , Robin E. Osterhout , Stephen J. Van Dien , Cara Ann Tracewell , Priti Pharkya , Stefan Andrae
IPC分类号： C12N15/52 , C12P7/42 , C08F120/06 , C08G63/664 , C12N15/63 , C12P7/24 , C12P7/40 , C12N9/04 , C12N9/06 , C12N9/10 , C12P7/62
摘要： Provided herein is a non-naturally occurring microbial organism having a methanol metabolic pathway that can enhance the availability of reducing equivalents in the presence of methanol. Such reducing equivalents can be used to increase the product yield of organic compounds produced by the microbial organism, such as 3-hydroxyisobutyrate or MAA. Also provided herein are methods for using such an organism to produce 3-hydroxyisobutyrate or MAA.

67. 发明授权

US11447583B2 High molecular weight poly(methacrylic acid) 有权
公开(公告)号：US11447583B2
公开(公告)日：2022-09-20
申请号：US17229513
申请日：2021-04-13
申请人： Alcon Inc.
发明人： Stephan Wittmar , Thomas Schmidt , Justyna Justynska-Reimann , Claudio Hofmann
IPC分类号： C08F120/06 , C08F20/18 , C08F2/10 , C08K5/23 , C08K5/372
摘要： The invention is generally related to a process for producing a relatively high molecular weight poly(methacrylic acid) (“PMAA”) in a water-based system. The process of the invention comprises polymerization of from about 1% to about 20% by weight of methacrylic acid in water or a water-based system in the presence of thiol compound and an azo radical initiator under controlled reaction and process conditions. A process of the invention can be easily scaled up into the pilot scale for producing large quantities of high molecular weight PMAAs. The invention is also related to high molecular weight poly(methacrylic acid)s obtained according to a process of the invention.

68. 发明授权

US11376276B2 Lubricating block copolymers and their use as biomimetic boundary lubricants 有权
公开(公告)号：US11376276B2
公开(公告)日：2022-07-05
申请号：US16339474
申请日：2017-10-04
申请人： CORNELL UNIVERSITY
发明人： David Putnam , Lawrence Bonassar , Zhexun Sun
IPC分类号： A61K31/785 , A61K31/795 , C08F293/00 , A61P19/02 , C08F120/06 , C08F220/28
摘要： The invention relates to methods of lubricating biological tissue, such as joints, bone, ocular tissue, nasal tissue, tendons, tendon capsule, and vaginal tissue, by contacting the biological tissue with an effective amount of a block copolymer lubricating composition which functions at least or better than lubricin. In particular embodiments, the method is used to treat osteoarthritis. In specific embodiments, the block copolymer has an ammonium-containing polymer block and a non-ionic hydrophilic polymer block, or the copolymer has a carboxylic acid-containing polymer block and a non-acid non-ionic hydrophilic polymer block.

69. 发明授权

US11351519B2 Absorbent polymers, and methods and systems of producing thereof and uses thereof 有权
公开(公告)号：US11351519B2
公开(公告)日：2022-06-07
申请号：US16346853
申请日：2017-10-31
申请人： Novomer, Inc.
发明人： Han Lee , John B. Ruhl , Robert E. Lapointe , Kyle Sherry , Alexander Tseitlin , Sadesh H. Sookraj
IPC分类号： C08G63/08 , C07C51/09 , C08G63/78 , A01C1/06 , A01N25/34 , B01J20/26 , A61L15/24 , B01D3/14 , B01J19/00 , B01J19/06 , B01J19/24 , B01J20/30 , C08G81/02 , C08G63/91 , C08F120/06 , C07C51/44 , C08F220/06 , C07D305/12 , C08G63/83 , A01C21/00
摘要： Provided herein are absorbent polymers produced from beta-propiolactone, and methods and systems of producing such polymers. The beta-propiolactone may be derived from ethylene oxide and carbon monoxide. The absorbent polymer may be bio-based and/or biodegradable. The absorbent polymers may be used for diapers, adult incontinence products, and feminine hygiene products, as well as for agricultural applications.

70. 发明申请

US20220143575A1 WATER ABSORBING RESIN PARTICLES 有权
公开(公告)号：US20220143575A1
公开(公告)日：2022-05-12
申请号：US17436389
申请日：2020-03-05
申请人： SUMITOMO SEIKA CHEMICALS CO., LTD.
发明人： Toru KAWAHARA
IPC分类号： B01J20/26 , B01J20/28 , C08F2/00 , C08F2/20 , C08F120/06 , A61F13/53 , A61L15/60
摘要： Disclosed are water-absorbent resin particles having a gel outflow test force measured by the following method of 5 to 14 N. The measuring method for gel outflow test force includes: producing a swollen gel by allowing the water-absorbent resin particles to absorb 29 times as amount of physiological saline as the water-absorbent resin particles under stirring; evenly putting 20 g of the swollen gel in a cylinder with an inner diameter of 5 cm and having a hole with a diameter of 5 mm at a bottom part, compressing the swollen gel in the cylinder at a rate of 10 mm/min with a jig with a diameter of 4.9 cm, thereby recording a test force at a time point when a part of the swollen gel flows out from the hole at the bottom part of the cylinder, as the gel outflow test force.

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