公开(公告)号：US07862897B2

公开(公告)日：2011-01-04

申请号：US11627940

申请日：2007-01-26

Applicant: Christopher K. Whitmarsh

Inventor： Christopher K. Whitmarsh

IPC: B32B9/00

CPC classification number: C10M103/02 ,  C01B32/00 ,  C04B35/524 ,  C04B35/76 ,  C04B35/806 ,  C04B35/83 ,  C04B38/0022 ,  C04B2235/386 ,  C04B2235/3891 ,  C04B2235/425 ,  C04B2235/5224 ,  C04B2235/5228 ,  C04B2235/5244 ,  C04B2235/77 ,  C10M2201/0413 ,  C10M2201/053 ,  C10M2201/0613 ,  C10M2201/0663 ,  C10N2220/08 ,  C10N2220/082 ,  C10N2220/086 ,  C10N2250/08 ,  C10N2270/00 ,  Y10T428/30 ,  C04B38/0054

Abstract: A biphasic nanoporous vitreous carbon material with a cementitious morphology characterized by presence of non-round porosity, having superior hardness and tribological properties, as useful for high wear-force applications. The biphasic nanoporous vitreous carbon material is produced by firing, under inert atmosphere, of particulate vitrified carbon in a composition containing (i) a precursor resin that is curable and pyrolyzable to form vitreous carbon and, optionally, (ii) addition of one or more of the following: solid lubricant, such as graphite, boron nitride, or molybdenum disulfide; a heat-resistant fiber reinforcement, such as copper, bronze, iron alloy, graphite, alumina, silica, or silicon carbide; or one or more substances to improve electrical conductivity, such as dendritic copper powder, copper “felt” or graphite flake, to produce a superior vitreous carbon that is useful alone or as a continuous phase in reinforced composites, in relation to conventional glassy carbon materials.

Abstract translation: 具有水泥质形态的双相纳米孔玻璃碳材料，其特征在于存在非圆形孔隙率，具有优异的硬度和摩擦学性能，对于高磨损应用是有用的。 双相纳米多孔玻璃碳材料是通过在惰性气氛下在含有（i）可固化和可热解以形成玻璃碳的前体树脂的组合物中，在惰性气氛下焙烧，并且任选地（ii）加入一种或多种 如下：固体润滑剂，如石墨，氮化硼或二硫化钼; 铜，青铜，铁合金，石墨，氧化铝，二氧化硅或碳化硅等耐热纤维增强材料; 或一种或多种改善导电性的物质，例如树枝状铜粉，铜“毡”或石墨片，以产生相对于常规玻璃碳材料单独使用或作为连续相可用于增强复合材料的优质玻璃碳 。

公开(公告)号：US5153295A

公开(公告)日：1992-10-06

申请号：US556599

申请日：1990-07-20

Applicant: Christopher K. Whitmarsh ,  Leonard V. Interrante

Inventor： Christopher K. Whitmarsh ,  Leonard V. Interrante

IPC: C04B35/571 ,  C08G77/60

CPC classification number: C04B35/571 ,  C08G77/60

Abstract: Polycarbosilane compositions, which can serve as silicon carbide precursors, are formed by a Grignard coupling reaction of a halomethylcarbosilane followed by reduction using a metal hydride. The polycarbosilane compositions that result have a substantially 1:1 silicon to carbon stoichiometry, are substantially non-cyclic and branched, and comprise the repeat units SiH.sub.3 CH.sub.2 --, --SiH.sub.3 CH.sub.2 --, .dbd.SiHCH.sub.2 --, and .tbd.SiCH.sub.2 --.

Abstract translation: 可以用作碳化硅前体的聚碳硅烷组合物通过卤代甲基碳硅烷的格利雅耦合反应形成，然后使用金属氢化物还原。 所得的具有基本上1：1的硅碳化学计量的聚碳硅烷组合物基本上是非环状和支链的，并且包含重复单元SiH 3 CH 2 - ，-SiH 3 CH 2 - ，= SiHCH 2 - 和3 Si SiCH 2 - 。

公开(公告)号：US08742008B2

公开(公告)日：2014-06-03

申请号：US12440603

申请日：2007-09-18

Applicant: Qionghua Shen ,  Walter J. Sherwood, Jr. ,  Christopher K. Whitmarsh

Inventor： Qionghua Shen ,  Walter J. Sherwood, Jr. ,  Christopher K. Whitmarsh

IPC: C08L83/00 ,  C08L83/04

CPC classification number: C08G77/12 ,  C08G77/06 ,  C08G77/20 ,  C08G77/44 ,  C08L83/04 ,  C08L83/14 ,  C09D183/04 ,  H05K1/032 ,  H05K1/0373

Abstract: A process for forming a new group of siloxane-based compositions by a one-step co-hydrolysis and the compositions formed thereof. The siloxane-based compositions being functionalized with a carbon-carbon double (C═C) bond and a silicon-hydrogen (Si—H) bond. The C═C bond and hydrogen (H) each being attached directly to a silicon (Si) atom of the silicon-oxygen (Si—O) backbone of the siloxane-based composition. The C═C bond may be from a vinyl or an aromatic radical like a phenyl substituent. The C═C bond substituent provides the functionality needed for forming crosslinkages through standard dehydrocoupling catalysts without the need for siloxane fluids or organic compounds containing alkyl or aryl functional groups. The process provides for varying proportions of silanes as starting monomers to tailor the desired silicon, carbon, hydrogen and oxygen ratios in the siloxane-based compositions or resins. The siloxane-based compositions may be used as precursors or replacement resins in the fabrication of other materials.

Abstract translation: 通过一步共水解形成新的基于硅氧烷的组合物组合物的方法及其形成的组合物。 基于硅氧烷的组合物用碳 - 碳双（C = C）键和硅 - 氢（Si-H）键进行官能化。 C = C键和氢（H）各自直接连接到硅氧烷基组合物的硅 - 氧（Si-O）主链的硅（Si）原子上。 C = C键可以是乙烯基或芳基，如苯基取代基。 C = C键取代基提供通过标准脱氢键合催化剂形成交联所需的官能度，而不需要硅氧烷流体或含有烷基或芳基官能团的有机化合物。 该方法提供不同比例的硅烷作为起始单体，以定制硅氧烷基组合物或树脂中所需的硅，碳，氢和氧比。 基于硅氧烷的组合物可以在其它材料的制造中用作前体或替代树脂。

公开(公告)号：US20090275695A1

公开(公告)日：2009-11-05

申请号：US12440603

申请日：2007-09-18

Applicant: Qionghua Shen ,  Walter J. Sherwood, JR. ,  Christopher K. Whitmarsh

Inventor： Qionghua Shen ,  Walter J. Sherwood, JR. ,  Christopher K. Whitmarsh

IPC: C08L83/06 ,  C08G77/20 ,  C08G77/14 ,  C08G77/08

CPC classification number: C08G77/12 ,  C08G77/06 ,  C08G77/20 ,  C08G77/44 ,  C08L83/04 ,  C08L83/14 ,  C09D183/04 ,  H05K1/032 ,  H05K1/0373

Abstract: A process for forming a new group of siloxane-based compositions by a one-step co-hydrolysis and the compositions formed thereof. The siloxane-based compositions being functionalized with a carbon-carbon double (C═C) bond and a silicon-hydrogen (Si—H) bond. The C═C bond and hydrogen (H) each being attached directly to a silicon (Si) atom of the silicon-oxygen (Si—O) backbone of the siloxane-based composition. The C═C bond may be from a vinyl or an aromatic radical like a phenyl substituent. The C═C bond substituent provides the functionality needed for forming crosslinkages through standard dehydrocoupling catalysts without the need for siloxane fluids or organic compounds containing alkyl or aryl functional groups. The process provides for varying proportions of silanes as starting monomers to tailor the desired silicon, carbon, hydrogen and oxygen ratios in the siloxane-based compositions or resins. The siloxane-based compositions may be used as precursors or replacement resins in the fabrication of other materials.

Abstract translation: 通过一步共水解形成新的基于硅氧烷的组合物组合物的方法及其形成的组合物。 基于硅氧烷的组合物用碳 - 碳双（C-C）键和硅 - 氢（Si-H）键进行官能化。 C-C键和氢（H）各自直接连接到硅氧烷基组合物的硅 - 氧（Si-O）主链的硅（Si）原子上。 C-C键可以是乙烯基或芳基，如苯基取代基。 C-C键取代基提供通过标准脱氢耦合催化剂形成交联所需的官能团，而不需要硅氧烷流体或含有烷基或芳基官能团的有机化合物。 该方法提供不同比例的硅烷作为起始单体，以定制硅氧烷基组合物或树脂中所需的硅，碳，氢和氧比。 基于硅氧烷的组合物可以在其它材料的制造中用作前体或替代树脂。

公开(公告)号：US20080150180A1

公开(公告)日：2008-06-26

申请号：US11616015

申请日：2006-12-25

Applicant: Christopher K. Whitmarsh

Inventor： Christopher K. Whitmarsh

IPC: C01B31/00 ,  C01B31/02 ,  C09K3/00

CPC classification number: C04B35/524 ,  B82Y30/00 ,  C04B35/78 ,  C04B35/83 ,  C04B2235/3217 ,  C04B2235/3418 ,  C04B2235/3891 ,  C04B2235/40 ,  C04B2235/404 ,  C04B2235/405 ,  C04B2235/407 ,  C04B2235/425 ,  C04B2235/428 ,  C04B2235/5288 ,  C04B2235/95

Abstract: A defect-free vitreous carbon material having a three-dimensional (x,y,z) size in which each of the x, y and z dimensions exceeds twelve millimeters. A process of making such vitreous carbon material employs a three-dimensional fiber mesh that vaporizes at elevated temperature, in which the mesh is impregnated with a polymerizable resin and thereafter the resin is cured. During the initial stage(s) of pyrolysis, the mesh volatilizes to yield a residual network of passages in the cured resin body that thereafter allows gases to escape during pyrolysis of the cured resin material to form the vitreous carbon product. As a result, it is possible to form defect-free vitreous carbon material of large size, suitable for use in structural composites, and product articles such as sealing members, brake linings, electric motor brushes, and bearing members.

Abstract translation: 具有三维（x，y，z）尺寸的无缺陷玻璃碳材料，其中x，y和z尺寸中的每一个超过十二毫米。 制造这种玻璃碳材料的方法采用在高温下蒸发的三维纤维网，其中网状物用可聚合树脂浸渍，然后树脂固化。 在热解的初始阶段，网状物挥发，在固化的树脂体中产生通道的残留网络，此后允许气体在固化的树脂材料的热解过程中逸出，形成玻璃碳产物。 结果，可以形成适合用于结构复合材料的大尺寸的无缺陷玻璃碳材料，以及诸如密封构件，制动衬片，电动马达刷子和轴承构件的产品。