公开(公告)号：US20230090239A1

公开(公告)日：2023-03-23

申请号：US17788075

申请日：2020-12-22

申请人： SHOWA DENKO K.K.

发明人： Masaki NANKO

IPC分类号： C08G65/00 ,  C08G65/331 ,  C08G65/333 ,  C10M107/38 ,  G11B5/725

摘要： The present invention provides a fluorine-containing ether compound represented by the following formula: R1—R2—CH2—R3—CH2—R4—R5 (in the formula, R3 represents a perfluoropolyether chain; R1 and R5 each independently represent any of an alkyl group which may have a substituent, an organic group having a double bond or a triple bond, and a hydrogen atom; —R2—CH2—R3 is represented by -[A]-[B]—O—CH2—R3; R3—CH2—R4— is represented by R3—CH2—O—[C]-[D]-; [A] is represented by Formula (4), [B] is represented by Formula (5), [C] is represented by Formula (6), and [D] is represented by Formula (7)):

公开(公告)号：US11525641B2

公开(公告)日：2022-12-13

申请号：US16854014

申请日：2020-04-21

申请人： The Board of Trustees of the University of Illinois

发明人： Nenad Miljkovic ,  Soumyadip Sett ,  George Barac ,  Leslie W. Bolton

IPC分类号： C10M107/38 ,  F28F19/02 ,  C10G7/10 ,  B01D5/00 ,  F28D21/00 ,  F28F13/04 ,  F28F13/18 ,  F28F19/04 ,  F28F21/06 ,  C10N50/00

摘要： A heat and mass transfer component comprises a lubricant-impregnated surface including hydrophobic surface features, which comprise nanostructured surface protrusions having a hydrophobic species attached thereto. The hydrophobic surface features are impregnated with a fluorinated lubricant having a viscosity in a range from about 400 mPa·s to about 6000 mPa·s. A method of fabricating a lubricant-impregnated surface on a heat and mass transfer component comprises: cleaning a thermally conductive substrate to form a cleaned substrate; exposing the cleaned substrate to a hot water or hot alkaline solution to form a thermally conductive substrate having nanostructured surface protrusions; depositing a hydrophobic species on the nanostructured surface protrusions to form hydrophobic surface features; and coating the hydrophobic surface features with a fluorinated lubricant having a viscosity in a range from 400 mPa·s to 6000 mPa·s. The heat and mass transfer component may exhibit a substantial increase in heat transfer coefficient during hydrocarbon condensation.

公开(公告)号：US20220364008A1

公开(公告)日：2022-11-17

申请号：US17864265

申请日：2022-07-13

申请人： Western Digital Technologies, Inc.

发明人： Bala Krishna Pathem ,  Nicholas Ryan Conley ,  Bruno Jean Marchon

IPC分类号： C10M107/38 ,  C08G65/00 ,  G11B5/725 ,  G11B5/48

摘要： A lubricant including a plurality of segments including a divalent center segment and two sidechain segments, each including a perfluoroalkyl ether moieties is provided in which a dewetting thickness of the lubricant may be determined based in-part on a segment weight average molecular weight of the segments. A magnetic recording medium and a magnetic data storage system including the lubricant are also provided.

公开(公告)号：US20220315514A1

公开(公告)日：2022-10-06

申请号：US17616867

申请日：2020-05-18

申请人： MORESCO CORPORATION

发明人： Tsuyoshi SHIMIZU ,  Akinori KIMURA

IPC分类号： C07C43/29 ,  C07C43/225 ,  C10M107/38

摘要： Provided is a compound which allows realization of a lubricant having high adsorbability and a high covering property with respect to a magnetic disk, particularly a carbon protective film. A perfluoropolyether compound in accordance with an aspect of the present invention has a naphthyl group or a phenoxyphenyl group at any one of terminals thereof.

公开(公告)号：US20220275305A1

公开(公告)日：2022-09-01

申请号：US17632474

申请日：2020-05-28

申请人： Moresco Corporation

发明人： Tsuyoshi SHIMIZU

IPC分类号： C10M173/02 ,  C10M107/38 ,  G11B5/725

摘要： Provided is a lubricant solution capable of being applied to a magnetic disk without use of a fluorine solvent. A lubricant solution in accordance with an aspect of the present invention includes: water; and a perfluoropolyether compound that satisfies Expression (I) below: NOH/(Mn/1500)≥2  (1), where NOH represents the number of hydroxyl groups per molecule of the perfluoropolyether compound and Mn represents a number average molecular weight of the perfluoropolyether compound.

公开(公告)号：US11427680B2

公开(公告)日：2022-08-30

申请号：US16469636

申请日：2017-12-12

申请人： SOLVAY SPECIALTY POLYMERS ITALY S.P.A.

发明人： Cristiano Monzani ,  Vito Tortelli ,  Marco Galimberti ,  Roberto Valsecchi ,  Patrizia Maccone

IPC分类号： C08G65/00 ,  C08G65/323 ,  C08G65/331 ,  G11B5/71 ,  C10M107/38

摘要： The present invention relates to a novel process for the synthesis of (per)fluoropolyether polymers, to certain novel (per)fluoropolyether polymers. The present invention also relates to the use of the (per)fluoropolyether polymers thus obtained as intermediate compounds for the manufacture of further polymers suitable for use as lubricants, notably for magnetic recording media (MRM).

公开(公告)号：US11421172B2

公开(公告)日：2022-08-23

申请号：US16482756

申请日：2018-01-17

申请人： Moresco Corporation

发明人： Tomomi Hatta ,  Tsuyoshi Shimizu ,  Aya Inoue ,  Yasuo Sakane

IPC分类号： C10M107/38 ,  C08G65/22 ,  G11B5/725 ,  C10N40/18

摘要： Provided are a lubricant that is highly resistant to contamination and highly thermally stable, a lubricant that is highly durable and highly heat resistant, and a magnetic disk. A fluoropolyether compound contains perfluoropolyether groups, end groups each containing at least one hydroxyl group, and a linking group that is comprised of a C4-C14 hydrocarbon group and that contains at least one hydroxyl group.

公开(公告)号：US11407957B2

公开(公告)日：2022-08-09

申请号：US16746162

申请日：2020-01-17

申请人： Celanese Sales Germany GmbH

发明人： Qamer Zia ,  Kirsten Markgraf

IPC分类号： C08L59/04 ,  C08L59/02 ,  C08L27/18 ,  C08L23/30 ,  C10M107/38 ,  B29D29/06 ,  B65G17/40

摘要： A tribologically modified polyoxymethylene polymer composition is disclosed. The polyoxymethylene polymer composition is comprised of a polyoxymethylene polymer in combination with a tribological modifier system. The tribological modifier system may include the combination of a fluoropolymer with a high density polyethylene, such as an oxidized high density polyethylene. The particular formulation provides a synergistic blend of properties. For instance, the polymer composition not only has an excellent surface appearance when molded into articles but has excellent low friction characteristics when tested against aluminum.

公开(公告)号：US20220056206A1

公开(公告)日：2022-02-24

申请号：US17415525

申请日：2019-12-20

申请人： Mexichem Fluor S.A. de C.V.

发明人： Andrew Sharratt

IPC分类号： C08G65/00 ,  C08G65/26 ,  C10M107/38 ,  C10M171/00

摘要： The present invention relates to compounds according to formula (Ia) or formula (Ib); wherein each W is independently selected from the group consisting of H, F, Cl, Br, I and (CY2)mCY3; each Y is independently selected from the group consisting of F, Cl, Br and I; each Z is independently selected from the group consisting of H, OH, (CW2)pCW3, CY3, OCW3, O(CW2)pCW3, OCW((CY2)mCY3)CWCW2, (CW2)pOH, polyalkylene glycol and polyolester; n is an integer from 2 to 49; m is an integer from 0 to 3; p is an integer from 0 to 9; the molecular weight average (MW) is ≤5500; and the polydispersity index is ≤1.45; compositions comprising these compounds and methods for their production.

公开(公告)号：US20220025288A1

公开(公告)日：2022-01-27

申请号：US17495255

申请日：2021-10-06

申请人： MEXICHEM FLUOR S.A. DE C.V.

发明人： Robert Elliot LOW ,  Andrew Paul SHARRATT ,  Emma Jane HODGSON

IPC分类号： C10M107/38 ,  C10M171/00 ,  C09K5/04 ,  C09K21/02 ,  C09K21/08 ,  C09K21/10 ,  C09K21/12 ,  C09K21/14

摘要： A composition comprising a heat transfer portion and a lubricating portion, wherein the lubricating portion comprises one or more compounds according to formula (I) of the present disclosure, wherein W is H; Y is independently selected from the group consisting of F, Cl, Br and I; Z is independently selected from the group consisting of H, OH, (CW2)PCW3, CY3, OCW3, 0(CW2)pCW3, OCW((CY2)mCY3)CWCW2, polyalkylene glycol and polyolester; n is an integer from 2 to 250; m is an integer from 0 to 3; and p is an integer from 0 to 9.