公开(公告)号：US06265060B1

公开(公告)日：2001-07-24

申请号：US08404234

申请日：1995-03-15

Applicant: Ravindra L. Arudi ,  Ramesh C. Kumar

Inventor： Ravindra L. Arudi ,  Ramesh C. Kumar

IPC: G11B5702

CPC classification number: G11B5/7023 ,  C08F212/08 ,  C08F220/12 ,  C08F220/24 ,  C08F220/44 ,  G11B5/7021 ,  Y10S428/90 ,  Y10T428/25 ,  Y10T428/31935

Abstract: A magnetic recording medium, comprising a magnetic layer provided on a nonmagnetizable substrate, wherein the magnetic layer comprises a magnetic pigment dispersed in a polymeric binder, the polymeric binder comprising a resin, wherein the resin comprises a nonchlorinated fluorine-containing vinyl copolymer having pendant nitrile groups, pendant hydroxyl groups, and pendant fluorine-containing groups.

Abstract translation: 一种磁记录介质，包括设置在不可磁化的基板上的磁性层，其中所述磁性层包含分散在聚合物粘合剂中的磁性颜料，所述聚合物粘合剂包括树脂，其中所述树脂包含具有侧链腈的非氯化含氟乙烯基共聚物 基团，羟基侧基和含氟基团。

公开(公告)号：US6139966A

公开(公告)日：2000-10-31

申请号：US131520

申请日：1998-08-10

Applicant: James G. Carlson ,  Jeffrey T. Anderson ,  Ramesh C. Kumar ,  Alvin M. Berg

Inventor： James G. Carlson ,  Jeffrey T. Anderson ,  Ramesh C. Kumar ,  Alvin M. Berg

IPC: C08G18/40 ,  C08G18/08 ,  C08G18/28 ,  C08G18/42 ,  C08G18/44 ,  C08G18/62 ,  C08G18/65 ,  C08G18/66 ,  C09D175/04 ,  G11B5/702 ,  G11B5/73 ,  G11B5/735 ,  B32B27/20 ,  B32B27/30 ,  B32B27/40

CPC classification number: C08G18/348 ,  C08G18/0814 ,  C08G18/0823 ,  C08G18/0833 ,  C08G18/284 ,  C08G18/2875 ,  C08G18/4277 ,  C08G18/44 ,  C08G18/62 ,  C08G18/6212 ,  C08G18/6229 ,  C08G18/6245 ,  C08G18/6283 ,  C08G18/6541 ,  C08G18/6659 ,  G11B5/7022 ,  G11B5/7027 ,  G11B5/735 ,  Y10T428/24207 ,  Y10T428/31551 ,  Y10T428/31609 ,  Y10T428/31855 ,  Y10T428/31928

Abstract: The invention provides novel macromonomer and carboxyl functional polyurethanes having a high carboxyl content. The invention further provides dispersions, coatings and magnetic recording media comprising these polyurethanes, or blends or copolymers of these polyurethanes with quaternary ammonium compounds. The invention further provides novel dispersions, coatings and magnetic recording media comprising combinations of carboxyl functional polyurethanes having a high carboxyl content with quaternary ammonium polymers.

公开(公告)号：US5874144A

公开(公告)日：1999-02-23

申请号：US736175

申请日：1996-10-23

Applicant: Ramesh C. Kumar ,  Shari J. Cullen

Inventor： Ramesh C. Kumar ,  Shari J. Cullen

IPC: C09D139/06 ,  B41M5/52 ,  C08F220/02 ,  C08F220/12 ,  C08F222/02 ,  C08F226/06 ,  C09D11/02 ,  C09J139/06 ,  C09J7/02

CPC classification number: C08F220/12 ,  B41M5/5254 ,  Y10S428/906 ,  Y10T428/14 ,  Y10T428/28 ,  Y10T428/2839 ,  Y10T428/2848 ,  Y10T428/2852 ,  Y10T428/3188 ,  Y10T428/31895 ,  Y10T428/31902 ,  Y10T428/31906 ,  Y10T428/31935 ,  Y10T428/31938

Abstract: The present invention provides a novel silicone free copolymer and coating prepared therefrom. The coating which is capable of being written on effectively with both solvent-based and water-based inks is also bleedthrough resistant. A repositionable pressure sensitive adhesive note is capable of effectively adhering to the coating. The invention also provides substrates coated with the coatings and articles such as pads and rolls formed from the coated substrates.

Abstract translation: 本发明提供了由其制备的新型无机硅共聚物和涂层。 能够以溶剂型和水性油墨两种方式有效地涂布的涂层也是耐渗透性的。 可重新定位的压敏胶粘剂能够有效地粘附到涂层上。 本发明还提供涂覆有涂层和制品的基底，例如由涂覆的基底形成的垫和辊。

公开(公告)号：US5716685A

公开(公告)日：1998-02-10

申请号：US735768

申请日：1996-10-23

Applicant: Ramesh C. Kumar ,  Shari J. Cullen

Inventor： Ramesh C. Kumar ,  Shari J. Cullen

IPC: C08F290/06 ,  B32B7/12 ,  C09D133/02 ,  C09D133/06 ,  C09D143/04 ,  B32B7/06

CPC classification number: B32B7/12 ,  Y10S428/906 ,  Y10T428/14 ,  Y10T428/28 ,  Y10T428/2839 ,  Y10T428/2848

Abstract: The present invention provides a novel copolymer and coating prepared therefrom. The coating which is capable of being written on effectively with both solvent-based and water-based inks is also bleedthrough resistant. A repositionable pressure sensitive adhesive note is capable of effectively adhering to the coating. The invention also provides substrates coated with the coatings and articles such as pads formed from the coated substrates.

Abstract translation: 本发明提供由其制备的新型共聚物和涂料。 能够以溶剂型和水性油墨两种方式有效地涂布的涂层也是耐渗透性的。 可重新定位的压敏胶粘剂能够有效地粘附到涂层上。 本发明还提供涂覆有涂层和制品的基材，例如由涂覆的基底形成的垫。

公开(公告)号：US5674604A

公开(公告)日：1997-10-07

申请号：US414783

申请日：1995-03-31

Applicant: Ramesh C. Kumar ,  Suman K. Patel

Inventor： Ramesh C. Kumar ,  Suman K. Patel

IPC: C08L25/12 ,  C08F212/10 ,  C08F220/10 ,  C08F220/34 ,  C08F220/42 ,  C08F230/02 ,  C08F246/00 ,  C08L33/06 ,  C08L33/14 ,  C08L33/20 ,  C09D5/23 ,  C09D201/00 ,  G11B5/702 ,  G11B5/708

CPC classification number: C08F230/02 ,  G11B5/7023 ,  Y10S428/90 ,  Y10T428/25 ,  Y10T428/31935

Abstract: The present invention provides a non-halogenated vinyl oligomer wherein the oligomer comprises a plurality of pendant nitrile groups and at least one pendant dispersing group; wherein the oligomer has a glass transition temperature of about 60.degree. to about 105.degree. C. and a number average molecular weight of about 2000 to about 4000 and the equivalent weight of the dispersing group(s) is about 500 to about 50,000. The invention also provides magnetic recording media comprising these dispersants.

Abstract translation: 本发明提供一种非卤代乙烯基低聚物，其中低聚物包含多个侧链腈基和至少一个侧链分散基团; 其中所述低聚物的玻璃化转变温度为约60℃至约105℃，数均分子量为约2000至约4000，并且所述分散基团的当量为约500至约50,000。 本发明还提供包含这些分散剂的磁记录介质。

公开(公告)号：US5134035A

公开(公告)日：1992-07-28

申请号：US543230

申请日：1990-06-25

Applicant: Ramesh C. Kumar ,  James G. Carlson ,  Jeffrey T. Anderson

Inventor： Ramesh C. Kumar ,  James G. Carlson ,  Jeffrey T. Anderson

IPC: C08F4/04 ,  C08F283/00 ,  C08G18/08 ,  C08G18/32 ,  C08G18/38 ,  C08G18/46 ,  C08G18/77 ,  C08G18/83 ,  C09D5/23 ,  C09D151/08 ,  C09D175/04 ,  G11B5/702

CPC classification number: G11B5/7021 ,  C08F283/006 ,  C08G18/0828 ,  C08G18/3876 ,  C08G18/4676 ,  C09D151/08 ,  Y10S428/90 ,  Y10T428/31609

Abstract: The invention relates to a sulfonated, thiol, and hydroxy-functional polyurethane polymer which comprises: (i) a polyurethane backbone; (ii) at least one SO.sub.3 M group pendant from the polyurethane backbone, wherein the polyurethane backbone has an SO.sub.3 M equivalent weight of from about 2,000 to about 100,000, and wherein M is selected from the group consisting of H.sup.+, NR.sub.4.sup.+ wherein R can be H.sup.+ or an alkyl group, Li.sup.+, Na.sup.+, K.sup.+, and mixtures thereof; (iii) at least two crosslinkable hydroxy groups pendant from the polyurethane backbone, wherein the polyurethane backbone has a hydroxy equivalent weight of from about 500 to about 50,000; and (iv) at least one --SH group pendant from the polyurethane backbone. The invention also relates to vinyl/polyurethane copolymers made therewith which are particularly useful as binders in magnetic recording media and a method of making the copolymers. The invention also relates to certain nonsulfonated thiol and hydroxy functional polyurethane graft copolymers and dispersions made therewith.

公开(公告)号：US08568848B2

公开(公告)日：2013-10-29

申请号：US13139378

申请日：2009-12-14

Applicant: Jayshree Seth ,  Zai-Ming Qiu ,  Marie A. Boulos ,  Michael A. Semonick ,  Ramesh C. Kumar

Inventor： Jayshree Seth ,  Zai-Ming Qiu ,  Marie A. Boulos ,  Michael A. Semonick ,  Ramesh C. Kumar

IPC: B32B27/32 ,  B32B9/04 ,  C08F12/20 ,  C08F14/18

CPC classification number: C09J7/0228 ,  C08L27/12 ,  C08L27/16 ,  C08L83/08 ,  C09J7/401 ,  Y10T428/1457 ,  Y10T428/2839 ,  Y10T428/31663 ,  C08L83/00 ,  C08L2666/14 ,  C08L2666/04

Abstract: Blended release materials including a blend of a fluoro-functional silicone release polymer and a fluoropolymer are described. Exemplary fluoropolymers include fluoroolefin-based polymers and linear fluoropolymers including linear fluoroacryaltes. Articles including such release materials such as release liners, and adhesive articles, including silicone adhesive articles, are also described.

Abstract translation: 描述了包括氟官能硅氧烷释放聚合物和含氟聚合物的共混物的混合释放材料。 示例性的含氟聚合物包括基于氟烯烃的聚合物和包括直链氟代丙烯酸酯的直链含氟聚合物。 还描述了包括诸如防粘衬垫的释放材料和粘合剂制品的制品，包括硅酮粘合剂制品。

公开(公告)号：US20120264890A1

公开(公告)日：2012-10-18

申请号：US13514339

申请日：2010-12-22

Applicant: Richard G. Hansen ,  Miguel A. Guerra ,  David S. Hays ,  Suresh S. Iyer ,  Ramesh C. Kumar ,  George G.I. Moore ,  Yu Yang

Inventor： Richard G. Hansen ,  Miguel A. Guerra ,  David S. Hays ,  Suresh S. Iyer ,  Ramesh C. Kumar ,  George G.I. Moore ,  Yu Yang

IPC: C08G77/385 ,  C08G77/26

CPC classification number: C08G77/455 ,  C08G65/007 ,  C08G77/388

Abstract: Copolymers containing at least one perfluoropolyether segment and at least one polydiorganosiloxane segments are described. The copolymers further contain multiple aminooxalylamino groups that link the various segments together. Methods of making the copolymers are also described.

Abstract translation: 描述了含有至少一个全氟聚醚链段和至少一个聚二有机硅氧烷链段的共聚物。 共聚物还含有将各种链段连接在一起的多个氨基草酰氨基。 还描述了制备共聚物的方法。

公开(公告)号：US20080132132A1

公开(公告)日：2008-06-05

申请号：US12028589

申请日：2008-02-08

Applicant: Zai-Ming QIU ,  George G.I. Moore ,  John C. Clark ,  Ramesh C. Kumar

Inventor： Zai-Ming QIU ,  George G.I. Moore ,  John C. Clark ,  Ramesh C. Kumar

IPC: C08F14/18 ,  B32B27/00 ,  B32B27/04

CPC classification number: C08F220/38 ,  Y10T428/3154 ,  Y10T442/2311 ,  Y10T442/232 ,  Y10T442/2754

Abstract: A composition comprises a copolymer comprising repeating units derived from at least one co-reactant comprising two or more acrylate groups and repeating units derived from a fluoroacrylate comprising the reaction product of: (a) at least one fluorochemical alcohol represented by the formula: C4F9—X—OH wherein: R=hydrogen or an alkyl group of 1 to 4 carbon atoms, m=2 to 8, Rf=CnF2+1, n=1 to 5, y=0 to 6, and q=1 to 8; (b) at least one unbranched symmetric diisocyanate; and (c) at least one hydroxy-terminated alkyl (meth)acrylate or 2-fluoroacrylate monomer having 2 to about 30 carbon atoms in its alkylene portion; wherein the composition is coatable.

Abstract translation: 组合物包含共聚物，其包含衍生自至少一种包含两个或更多个丙烯酸酯基团的共反应物的重复单元和衍生自氟代丙烯酸酯的重复单元，所述重复单元包含以下反应产物：（a）至少一种由下式表示的含氟醇： in-line-formula description =“In-line Formulas”end =“lead”？> C 3 -X-OH <？in-line-formula description 其中：R =氢或1至4个碳原子的烷基，m = 2至8，R f = C 1， n = 2〜1，n = 1〜5，y = 0〜6，q = 1〜8; （b）至少一种非支化对称二异氰酸酯; 和（c）至少一种羟基封端的（甲基）丙烯酸烷基酯或其亚烷基部分具有2-30个碳原子的2-氟丙烯酸酯单体; 其中所述组合物是可涂覆的。

公开(公告)号：US06562324B1

公开(公告)日：2003-05-13

申请号：US08460958

申请日：1995-06-05

Applicant: Kanta Kumar ,  Ramesh C. Kumar ,  Smarajit Mitra

Inventor： Kanta Kumar ,  Ramesh C. Kumar ,  Smarajit Mitra

IPC: A61K7075

CPC classification number: A61Q19/00 ,  A61K8/39 ,  A61K8/899 ,  A61Q1/04 ,  A61Q1/10 ,  A61Q3/00 ,  A61Q3/02 ,  A61Q5/00 ,  A61Q5/02 ,  A61Q5/06 ,  A61Q11/00 ,  A61Q15/00 ,  A61Q19/002 ,  C08F283/12 ,  C08F283/122 ,  C08G77/28 ,  C08G77/392 ,  C08G77/442 ,  Y10S424/01 ,  Y10S424/02 ,  Y10S514/844

Abstract: Cosmetic compositions are provided containing vinyl-silicone graft or block copolymers of the formula

Abstract translation: 提供包含下式的乙烯基 - 硅氧烷接枝或嵌段共聚物的化妆品组合物