公开(公告)号：US11098204B2

公开(公告)日：2021-08-24

申请号：US16746090

申请日：2020-01-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： April R. Rodriguez ,  Adam F. Gross ,  Ashley M. Dustin ,  Anthony L. Smith ,  Andrew P. Nowak ,  Kevin J. Drummey

IPC: C09D5/16 ,  C08F214/22 ,  C09D127/22

Abstract: An aqueous or water-borne precursor for forming an anti-fouling heterophasic thermoset polymeric coating is provided. The precursor includes a fluorine-containing polyol precursor having a functionality greater than about 2 that forms a branched fluorine-containing polymer component defining a continuous phase in the anti-fouling heterophasic thermoset polymeric coating. The precursor also includes a fluorine-free precursor that forms a fluorine-free component present as a plurality of domains each having an average size of greater than or equal about 100 nm to less than or equal about 5,000 nm defining a discrete phase within the continuous phase in the anti-fouling heterophasic thermoset polymeric coating. A crosslinking agent and water are also present. An emulsifier may also be included. Methods of making anti-fouling heterophasic thermoset polymeric coatings with such precursors are also provided.

公开(公告)号：US20170226392A1

公开(公告)日：2017-08-10

申请号：US15019100

申请日：2016-02-09

Applicant: GM Global Technology Operations LLC

Inventor： Anita Luong ,  Yeh-Hung Lai ,  Andrew P. Nowak

IPC: C09J183/04 ,  H01M8/0263 ,  H01M8/2475 ,  H01M8/1039 ,  H01M8/0286 ,  H01M8/241 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/2404 ,  H01M8/0284

CPC classification number: C09J183/04 ,  C08G77/12 ,  C08G77/20 ,  C09J5/06 ,  C09J2203/33 ,  C09J2400/10 ,  C09J2483/00 ,  H01M8/0263 ,  H01M8/0284 ,  H01M8/0286 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/2404 ,  H01M8/241 ,  H01M8/2475 ,  H01M2008/1095 ,  H01M2250/20 ,  C08L83/00 ,  C08K5/56 ,  C08K5/01 ,  C08K5/5419

Abstract: A composition with latent adhesion, fuel cell stack with a bipolar plate assembly with latent adhesion and a method of assembling a fuel cell stack with a seal that has latent adhesion such that reactant or coolant leakage through the seal is reduced. Bipolar plates within the stack include reactant channels and coolant channels that are fluidly coupled to inlet and outlet flowpaths, all of which are formed within a coolant-engaging or reactant-engaging surface of the plate. One or more thin or low aspect-ratio seals are formed on a metal bead that is integrally-formed on a surface of the plate and is used to help reduce leakage by maintaining fluid isolation of the reactants and coolant as they flow through their respective channels and flowpaths that are defined between adjacently-placed plates. By proper formulation of the precursor materials that make up the seal, the activation of the adhesive bond formed between the seal and an adjacent surface within the fuel cell can be delayed to allow ample time to aligned and compressively join the cell assemblies in a stack housing. This in turn improves the ability of the seal and its adjacent surface to avoid seal damage and concomitant reactant or coolant leakage.

公开(公告)号：US09105884B2

公开(公告)日：2015-08-11

申请号：US14336485

申请日：2014-07-21

Applicant: GM Global Technology Operations LLC

Inventor： Richard H. Blunk ,  Andrew P. Nowak

IPC: H01M8/02 ,  F16J15/14 ,  H01M8/10

CPC classification number: H01M8/0271 ,  F16J15/14 ,  H01M8/0276 ,  H01M8/0284 ,  H01M8/0286 ,  H01M8/241 ,  H01M8/2457 ,  H01M2008/1095 ,  H01M2250/20 ,  Y02E60/50 ,  Y02T90/32

Abstract: A sealed assembly is made using sealant including a deformable spacer to control thickness without adversely impacting elasticity and sealing force. Deformable spacers (e.g., elastomer, polyolefin, etc.) are mixed with an elastomeric precursor material and dispensed onto an assembly component, such as a fuel cell bipolar plate, and the remaining component(s) are assembled by pressing against the deformable spacer to ensure a defined seal thickness. The precursor is cured to form a seal that is further compressed to provide an effective sealing force. The deformable spacers control the thickness of a sealed area and allow use of form-in-place sealing processes.

Abstract translation: 使用密封剂制成密封组件，所述密封剂包括可变形间隔件以控制厚度而不会不利地影响弹性和密封力。 可变形间隔物（例如弹性体，聚烯烃等）与弹性体前体材料混合并分配到诸如燃料电池双极板的组件部件上，并且其余部件通过压靠可变形间隔件组装成 确保密封厚度的确定。 固化前体以形成进一步压缩以提供有效的密封力的密封。 可变形间隔物控制密封区域的厚度，并允许使用现场密封工艺。

公开(公告)号：US20240270892A1

公开(公告)日：2024-08-15

申请号：US18169676

申请日：2023-02-15

Applicant: GM Global Technology Operations LLC

Inventor： Ashley Dustin ,  Janet C. Robincheck ,  Matthew Vandyke ,  Megan Shewey ,  Adam F. Gross ,  Andrew P. Nowak ,  Dylan Hollrigel

IPC: C08G18/08 ,  C08G18/18 ,  C08G18/24 ,  C08G18/62 ,  C08J9/00 ,  C08J9/12 ,  C08L75/08 ,  C08L83/04 ,  C08L97/00

CPC classification number: C08G18/14 ,  C08G18/18 ,  C08G18/242 ,  C08G18/6204 ,  C08J9/0004 ,  C08J9/0023 ,  C08J9/0061 ,  C08J9/125 ,  C08J9/141 ,  C08L75/08 ,  C08L83/04 ,  C08L97/005 ,  C08G2101/00 ,  C08G2110/0016 ,  C08G2110/0041 ,  C08J2201/022 ,  C08J2203/10 ,  C08J2203/16 ,  C08J2205/06 ,  C08J2375/04 ,  C08J2375/08 ,  C08J2483/04 ,  C08J2497/00 ,  C08L2203/14

Abstract: A polyurethane foam and a method of forming a polyurethan foam. The polyurethane foam including the reaction product of polyethylene glycol and polypropylene copolymer polyol, a gelation catalyst, a blowing catalyst, lignin, a polymeric isocyanate, and a blowing agent. The method includes mixing polyethylene glycol and polypropylene copolymer polyol, a gelation catalyst, a blowing catalyst, lignin, a polymeric isocyanate, and a blowing agent. Vehicle components are formed from the polyurethane foam.

公开(公告)号：US20140329166A1

公开(公告)日：2014-11-06

申请号：US14336485

申请日：2014-07-21

Applicant: GM Global Technology Operations LLC

Inventor： Richard H. Blunk ,  Andrew P. Nowak

IPC: H01M8/02

CPC classification number: H01M8/0271 ,  F16J15/14 ,  H01M8/0276 ,  H01M8/0284 ,  H01M8/0286 ,  H01M8/241 ,  H01M8/2457 ,  H01M2008/1095 ,  H01M2250/20 ,  Y02E60/50 ,  Y02T90/32

Abstract: A sealed assembly is made using sealant including a deformable spacer to control thickness without adversely impacting elasticity and sealing force. Deformable spacers (e.g., elastomer, polyolefin, etc.) are mixed with an elastomeric precursor material and dispensed onto an assembly component, such as a fuel cell bipolar plate, and the remaining component(s) are assembled by pressing against the deformable spacer to ensure a defined seal thickness. The precursor is cured to form a seal that is further compressed to provide an effective sealing force. The deformable spacers control the thickness of a sealed area and allow use of form-in-place sealing processes.

Abstract translation: 使用密封剂制成密封组件，所述密封剂包括可变形间隔件以控制厚度而不会不利地影响弹性和密封力。 可变形间隔物（例如弹性体，聚烯烃等）与弹性体前体材料混合并分配到诸如燃料电池双极板的组件部件上，并且其余部件通过压靠可变形间隔件组装成 确保密封厚度的确定。 固化前体以形成进一步压缩以提供有效的密封力的密封。 可变形间隔物控制密封区域的厚度，并允许使用现场密封工艺。

公开(公告)号：US12049534B1

公开(公告)日：2024-07-30

申请号：US18169676

申请日：2023-02-15

Applicant: GM Global Technology Operations LLC

Inventor： Ashley Dustin ,  Janet C. Robincheck ,  Matthew Vandyke ,  Megan Shewey ,  Adam F. Gross ,  Andrew P. Nowak ,  Dylan Hollrigel

IPC: C08J9/12 ,  C08G18/08 ,  C08G18/18 ,  C08G18/24 ,  C08G18/62 ,  C08J9/00 ,  C08J9/14 ,  C08L75/08 ,  C08L83/04 ,  C08L97/00 ,  C08G101/00

CPC classification number: C08G18/14 ,  C08G18/18 ,  C08G18/242 ,  C08G18/6204 ,  C08J9/0004 ,  C08J9/0023 ,  C08J9/0061 ,  C08J9/125 ,  C08J9/141 ,  C08L75/08 ,  C08L83/04 ,  C08L97/005 ,  C08G2101/00 ,  C08G2110/0016 ,  C08G2110/0041 ,  C08J2201/022 ,  C08J2203/10 ,  C08J2203/16 ,  C08J2205/06 ,  C08J2375/04 ,  C08J2375/08 ,  C08J2483/04 ,  C08J2497/00 ,  C08L2203/14

Abstract: A polyurethane foam and a method of forming a polyurethan foam. The polyurethane foam including the reaction product of polyethylene glycol and polypropylene copolymer polyol, a gelation catalyst, a blowing catalyst, lignin, a polymeric isocyanate, and a blowing agent. The method includes mixing polyethylene glycol and polypropylene copolymer polyol, a gelation catalyst, a blowing catalyst, lignin, a polymeric isocyanate, and a blowing agent. Vehicle components are formed from the polyurethane foam.

公开(公告)号：US10358587B2

公开(公告)日：2019-07-23

申请号：US15019100

申请日：2016-02-09

Applicant: GM Global Technology Operations LLC

Inventor： Anita Luong ,  Yeh-Hung Lai ,  Andrew P. Nowak

IPC: H01M8/0284 ,  H01M8/0286 ,  C09J183/04 ,  H01M8/1004 ,  H01M8/0263 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/241 ,  H01M8/2475 ,  C09J5/06 ,  H01M8/2404 ,  H01M8/1018

Abstract: A composition with latent adhesion, fuel cell stack with a bipolar plate assembly with latent adhesion and a method of assembling a fuel cell stack with a seal that has latent adhesion such that reactant or coolant leakage through the seal is reduced. Bipolar plates within the stack include reactant channels and coolant channels that are fluidly coupled to inlet and outlet flowpaths, all of which are formed within a coolant-engaging or reactant-engaging surface of the plate. One or more thin or low aspect-ratio seals are formed on a metal bead that is integrally formed on a surface of the plate and is used to help reduce leakage by maintaining fluid isolation of the reactants and coolant as they flow through their respective channels and flowpaths that are defined between adjacently placed plates. By proper formulation of the precursor materials that make up the seal, the activation of the adhesive bond formed between the seal and an adjacent surface within the fuel cell can be delayed to allow ample time to aligned and compressively join the cell assemblies in a stack housing. This in turn improves the ability of the seal and its adjacent surface to avoid seal damage and concomitant reactant or coolant leakage.

公开(公告)号：US20250019548A1

公开(公告)日：2025-01-16

申请号：US18351787

申请日：2023-07-13

Applicant: GM Global Technology Operations LLC

Inventor： Adam F. Gross ,  Anthony L. Smith ,  Michael D. Alarcon ,  Ratandeep Singh Kukreja ,  Dayananda Narasimhaiah ,  April R. Rodriguez ,  Ashley Dustin ,  Andrew P. Nowak ,  Michael Jared Ventuleth

IPC: C09D5/02 ,  C09D7/61 ,  C09D7/63 ,  C09D7/65 ,  C09D123/08 ,  C09D123/28

Abstract: An anti-icing coating having a continuous phase and a discrete phase. The continuous phase includes a fluorine-containing polymer formed from a fluorine-containing precursor having a functionality of greater than 2. The discrete phase includes a plurality of domains having a fluorine-free hygroscopic and/or hydrophilic material. The plurality of domains are dispersed within the continuous phase and are immersible with the continuous phase. At least a portion of the fluorine-free material is bonded to the fluorine-containing polymer with an isocyanate-containing moiety. The fluorine-containing polymer is crosslinked with a crosslinking molecule having at least 4 functional groups. The fluorine-free material is a poly(ethylene glycol).

公开(公告)号：US10570292B1

公开(公告)日：2020-02-25

申请号：US16155347

申请日：2018-10-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： April R. Rodriguez ,  Adam F. Gross ,  Ashley M. Dustin ,  Anthony L. Smith ,  Andrew P. Nowak ,  Kevin J. Drummey

IPC: C09D5/16 ,  C08F214/22 ,  C09D127/22

Abstract: An aqueous or water-borne precursor for forming an anti-fouling heterophasic thermoset polymeric coating is provided. The precursor includes a fluorine-containing polyol precursor having a functionality >about 2 that forms a branched fluorine-containing polymer component defining a continuous phase in the anti-fouling heterophasic thermoset polymeric coating. The precursor also includes a fluorine-free precursor that forms a fluorine-free component present as a plurality of domains each having an average size of ≥about 100 nm to ≤about 5,000 nm defining a discrete phase within the continuous phase in the anti-fouling heterophasic thermoset polymeric coating. A crosslinking agent and water are also present. An emulsifier may also be included. Methods of making anti-fouling heterophasic thermoset polymeric coatings with such precursors are also provided.