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

US6107365A Biomimetic hydrogel materials 失效
公开(公告)号：US6107365A
公开(公告)日：2000-08-22
申请号：US145507
申请日：1998-09-02
申请人： Carolyn Bertozzi , Ravindranath Mukkamala , Qing Chen , Hopin Hu , Dominique Baude
发明人： Carolyn Bertozzi , Ravindranath Mukkamala , Qing Chen , Hopin Hu , Dominique Baude
IPC分类号： G02C7/04 , A61F2/16 , A61L27/16 , A61L27/52 , C08F220/38 , C08F220/54 , C08J3/05 , C08L33/00 , C08L57/00 , C08L89/00 , G02B1/04 , C08L33/14
CPC分类号： G02B1/043 , A61L27/16 , A61L27/52 , C08F220/38 , C08F220/54 , A61L2430/16 , Y10S524/916
摘要： Novel biomimetic hydrogel materials and methods for their preparation. Hydrogels containing acrylamide-functionalized carbohydrate, sulfoxide, sulfide or sulfone copolymerized with a hydrophilic or hydrophobic copolymerizing material selected from the group consisting of an acrylamide, methacrylamide, acrylate, methacrylate, vinyl and a derivative thereof present in concentration from about 1 to about 99 wt %. and methods for their preparation. The method of use of the new hydrogels for fabrication of soft contact lenses and biomedical implants.

2. 发明授权

US06552103B1 Biomimetic hydrogel materials 失效
标题翻译：仿生水凝胶材料
公开(公告)号：US06552103B1
公开(公告)日：2003-04-22
申请号：US09574938
申请日：2000-05-19
申请人： Carolyn Bertozzi , Ravindranath Mukkamala , Oing Chen , Hopin Hu , Dominique Baude
发明人： Carolyn Bertozzi , Ravindranath Mukkamala , Oing Chen , Hopin Hu , Dominique Baude
IPC分类号： G02C704
CPC分类号： G02B1/043 , A61L27/16 , A61L27/52 , A61L2430/16 , C08F220/38 , C08F220/54 , Y10S524/916 , C08L51/02 , C08L33/14
摘要： Novel biomimetic hydrogel materials and methods for their preparation. Hydrogels containing acrylamide-functionalized carbohydrate, sulfoxide, sulfide or sulfone copolymerized with a hydrophilic or hydrophobic copolymerizing material selected from the group consisting of an acrylamide, methacrylamide, acrylate, methacrylate, vinyl and a derivative thereof present in concentration from about 1 to about 99 wt %. and methods for their preparation. The method of use of the new hydrogels for fabrication of soft contact lenses and biomedical implants.
摘要翻译：新型仿生水凝胶材料及其制备方法。含有丙烯酰胺官能化碳水化合物，亚砜，硫化物或砜的水凝胶与选自丙烯酰胺，甲基丙烯酰胺，丙烯酸酯，甲基丙烯酸酯，乙烯基及其衍生物的亲水或疏水共聚材料共聚合，其浓度为约1至约99重量％％。及其制备方法。使用新型水凝胶制造软性隐形眼镜和生物医学植入物的方法。

3. 发明授权

US07097759B2 Carbonyl, thiocarbonyl or imine containing compounds as asphaltene dispersants in crude oil 有权
标题翻译：羰基，硫代羰基或含亚胺的化合物作为原油中的沥青分散剂
公开(公告)号：US07097759B2
公开(公告)日：2006-08-29
申请号：US10444380
申请日：2003-05-23
申请人： Ravindranath Mukkamala
发明人： Ravindranath Mukkamala
IPC分类号： C10L1/10 , C08L77/00 , C08L47/00 , C08L29/00
CPC分类号： H01B1/04 , H01B1/127 , H01B1/128
摘要： A method for dispersing asphaltenes in a petroleum product by adding to the petroleum product 0.001% to 20% of at least one compound having formula (V) wherein R14 is C15–C21 alkyl. In addition to dispersing asphaltenes, the method of the present invention typically also increases demulsibility, reduces viscosity, reduces sediment formation, reduces surface fouling and reduces corrosion.
摘要翻译：通过向石油产品中添加0.001％至20％的至少一种具有式（Ⅴ）的化合物（其中R 14为C 15 H 15），将沥青质分散在石油产品中的方法， -C 21烷基。除了分散沥青质之外，本发明的方法通常还增加了破乳性，降低了粘度，减少了沉积物形成，减少了表面结垢并降低了腐蚀。

4. 发明授权

US06602832B2 Oil-soluble additive compositions for lubricating oils 有权
标题翻译：用于润滑油的油溶性添加剂组合物
公开(公告)号：US06602832B2
公开(公告)日：2003-08-05
申请号：US10054064
申请日：2002-01-22
申请人： Ravindranath Mukkamala , Rajiv Manohar Banavali
发明人： Ravindranath Mukkamala , Rajiv Manohar Banavali
IPC分类号： C10M1406
CPC分类号： C07D235/02 , C07D233/42 , C10M135/32 , C10M141/08 , C10M2207/08 , C10M2207/10 , C10M2207/122 , C10M2207/126 , C10M2207/141 , C10M2219/09
摘要： An oil-soluble lubricant additive composition comprising: (a) at least one compound of formula I: wherein R1, R2, R3 and R4 are independently hydrogen, alkyl, alkenyl, aryl or aralkyl; or R1 and R2, or R3 and R4, combine with the carbon atom to which they are attached to form an alkyl or alkenyl ring; and (b) an acid having the formula RCO2H, wherein R is C1-C25 alkyl, C2-C25 alkenyl, C2-C25 alkynyl, C5-C25 aryl or C5-C25 aralkyl.
摘要翻译：一种油溶性润滑剂添加剂组合物，其包含：（a）至少一种式I化合物：其中R 1，R 2，R 3和R 4独立地是氢，烷基，烯基，芳基或芳烷基; 或R 1和R 2或R 3和R 4与它们所连接的碳原子结合形成烷基或链烯基环; 和（b）具有式RCO 2 H的酸，其中R为C 1 -C 25烷基，C 2 -C 25烯基，C 2 -C 25炔基，C 5 -C 25芳基或C 5 -C 25芳烷基。

5. 发明授权

US06727387B2 Quaternary ammonium salts having a tertiary alkyl group 有权
标题翻译：具有叔烷基的季铵盐
公开(公告)号：US06727387B2
公开(公告)日：2004-04-27
申请号：US10139440
申请日：2002-05-06
申请人： Ravindranath Mukkamala , Rajiv Monohar Banavali
发明人： Ravindranath Mukkamala , Rajiv Monohar Banavali
IPC分类号： A61K3114
CPC分类号： A01N33/12 , C07C211/63 , C23F11/141
摘要： A compound of formula I:
摘要翻译：式I的化合物：

6. 发明授权

US07122112B2 Compounds containing amide and carboxyl groups as asphaltene dispersants in crude oil 失效
标题翻译：在原油中含有酰胺和羧基作为沥青质分散剂的化合物
公开(公告)号：US07122112B2
公开(公告)日：2006-10-17
申请号：US10447730
申请日：2003-05-29
申请人： Ravindranath Mukkamala , Rajiv Manohar Banavali
发明人： Ravindranath Mukkamala , Rajiv Manohar Banavali
IPC分类号： C10G33/00 , C07C7/20
CPC分类号： C10G9/16
摘要： A composition containing: (a) 0.001% to 20% of at least one compound represented by formula (II), wherein R5 is C1–C70 difunctional alkyl or C6–C14 difunctional aryl, and R3and R4 independently are hydrogen, alkyl, heterocyclic, aryl or aralkyl groups; and (b) crude oil. In addition to dispersing asphaltenes, the composition of the present invention typically also increases demulsibility, reduces viscosity, reduces sediment formation, reduces surface fouling and reduces corrosion.
摘要翻译：一种组合物，其含有：（a）0.001％至20％的至少一种由式（II）表示的化合物，其中R 5是C 1 -C 70 二官能烷基或C 6 -C 14二官能芳基，R 3和R 4独立地是是氢，烷基，杂环，芳基或芳烷基; 和（b）原油。除了分散沥青质之外，本发明的组合物通常还增加了破乳性，降低了粘度，减少了沉积物的形成，减少了表面污垢并降低了腐蚀。

7. 发明授权

US07074937B2 Method for production of additives for lubricating oils 失效
标题翻译：生产润滑油添加剂的方法
公开(公告)号：US07074937B2
公开(公告)日：2006-07-11
申请号：US10663159
申请日：2003-09-15
申请人： Ravindranath Mukkamala
发明人： Ravindranath Mukkamala
IPC分类号： C07D233/42
CPC分类号： C07D233/54 , C07D233/42
摘要： A method for making a compound of formula (I) wherein bonds a and b are single or double bonds, provided that one of a and b is a single bond and the other is a double bond; one of B1 and B2 is —CHR5—CHR6—C(Y)ZR7 and the other is absent; B3 is hydrogen; Y is O or S; Z is O, S or NR9; R5 is hydrogen or C1–C4 alkyl; R6 is hydrogen or C1–C4 alkyl; R7, R9 are independently hydrogen, alkyl, alkenyl, aryl or aralkyl. The method comprises steps of: (a) preparing an imidazolidinethione having formula by combining a cyanide source, a sulfide salt, and at least one ketone or aldehyde; and (b) adding to the imidazolidinethione, without isolation of the imidazolidinethione, CHR5═CR6—C(O)OR7.
摘要翻译：制备式（I）化合物的方法，其中a和b键是单键或双键，条件是a和b之一是单键，另一个是双键; B 1和B 2之一是-CHR 5 -CHR 6 -C（Y）ZR SUP > 7 而另一个则不存在 B 3是氢; Y为O或S; Z是O，S或NR 9; R 5是氢或C 1 -C 4烷基; R 6是氢或C 1 -C 4烷基; R 6是氢或C 1 -C 4烷基; R 9，R 9独立地是氢，烷基，烯基，芳基或芳烷基。该方法包括以下步骤：（a）通过将氰化物源，硫化物盐和至少一种酮或醛组合而制备具有式的咪唑烷硫酮; 和（b）在不分离咪唑烷硫酮的情况下向咪唑烷硫酮加入CHR 5 -CR 6 -C（O）或者7以上。

8. 发明授权

US06998368B2 Cyclic nitroxyl compounds as additives for lubricating oils 失效
标题翻译：环状硝酰基化合物作为润滑油的添加剂
公开(公告)号：US06998368B2
公开(公告)日：2006-02-14
申请号：US10465209
申请日：2003-06-19
申请人： Ravindranath Mukkamala
发明人： Ravindranath Mukkamala
IPC分类号： C10M135/14 , C07D233/42
CPC分类号： C07D239/10 , C07D233/42 , C07D471/10 , C07D487/08 , C10M135/14 , C10M2219/09 , C10N2230/06 , C10N2230/10 , C10N2230/12
摘要： A composition comprising: (a) from 0.1% to 20% of at least one cyclic compound having a nitroxyl group and a thioamide group; and (b) a lubricating oil.
摘要翻译：一种组合物，其包含：（a）0.1％至20％的至少一种具有硝酰基和硫代酰胺基的环状化合物; 和（b）润滑油。

9. 发明授权

US06734149B2 Combination of additives for lubricating oils 失效
标题翻译：润滑油添加剂的组合
公开(公告)号：US06734149B2
公开(公告)日：2004-05-11
申请号：US10166413
申请日：2002-06-10
申请人： Ravindranath Mukkamala
发明人： Ravindranath Mukkamala
IPC分类号： C10M14100
CPC分类号： C07D235/02 , C07D233/42 , C10M135/32 , C10M2219/09 , C10N2230/06 , C10N2230/12 , C10N2240/10 , C10N2240/101 , C10N2240/104 , C10N2240/106
摘要： A composition comprising a compound of formula I: wherein W represents O, S—A2, or two groups, R3 and R4; bonds a and b are single or double bonds, provided that one of a and b is a single bond and the other is a double bond; c is a single or double bond, and d is a single bond, double bond, or two single bonds, provided that d is a single bond when c is a double bond, d is not a single bond when c is a single bond, and W is R3 and R4 when d is two single bonds; A1, A2, B1 and B2 are independently hydrogen, alkyl, alkenyl, aralkyl or one of the groups depicted in Scheme 1: and a dithiophosphate.
摘要翻译：一种组合物，其包含式I化合物：其中W表示O，S-A 2或两个基团，R 3和R 4; 键a和b是单键或双键，条件是a和b之一是单键，另一个是双键; c是单键或双键，d是单键，双键或两个单键，条件是当c是双键时d是单键，当c是单键时d不是单键，当d为2个单键时，W为R 3和R 4; A 1，A 2，B 1和B 2独立地是氢，烷基，烯基，芳烷基或反应路线1所示的基团之一和二硫代磷酸酯。

10. 发明授权

US06602831B2 Oil-soluble additives for lubricating oils 失效
标题翻译：润滑油的油溶性添加剂
公开(公告)号：US06602831B2
公开(公告)日：2003-08-05
申请号：US10054058
申请日：2002-01-22
申请人： Ravindranath Mukkamala
发明人： Ravindranath Mukkamala
IPC分类号： C10M15706
CPC分类号： C07D235/02 , C07D233/42 , C10M135/32 , C10M2219/09 , C10N2230/06 , C10N2230/12 , C10N2240/10 , C10N2240/101 , C10N2240/104 , C10N2240/106
摘要： A compound of formula I: wherein W represents O, S—A2, or two groups, R3 and R4; bonds a and b are single or double bonds, provided that one of a and b is a single bond and the other is a double bond; c is a single or double bond, and d is a single bond, double bond, or two single bonds, provided that d is a single bond when c is a double bond, d is not a single bond when c is a single bond, and W is R3 and R4 when d is two single bonds; A1, A2, B and B2 are independently hydrogen, alkyl, alkenyl, aralkyl or one of the groups depicted in Scheme 1:
摘要翻译：式I的化合物：其中W表示O，S-A2或两个基团，R 3和R 4; 键a和b是单键或双键，条件是a和b之一是单键，另一个是双键; c是单键或双键，d是单键，双键或两个单键，条件是当c是双键时d是单键，当c是单键时d不是单键，当d为两个单键时，W为R3和R4; A1，A2，B和B2独立地为氢，烷基，烯基，芳烷基或方案1中所示的一个基团：

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