-
公开(公告)号:US10329383B2
公开(公告)日:2019-06-25
申请号:US15913759
申请日:2018-03-06
Inventor: Kapsoo Cheon , Marie J. Demers , Ajay Padwal
IPC: B32B5/02 , B32B9/00 , B32B9/04 , C08J5/24 , C08K5/13 , H01Q1/42 , B32B27/08 , B32B27/12 , B32B27/16 , B32B27/18 , B32B27/28 , B32B27/32 , B32B27/34 , B32B27/36 , B32B27/42 , C08G67/00 , C08L61/14
Abstract: Certain embodiments are directed to cyanate resin blends comprising, for example, a mixture of a cyanate monomer and a cyanate oligomer. The resin blends are effective to provide a dielectric constant of less than 2.7, a glass transition temperature of at least 150° C. and a moisture absorption of less than 1.5%. Radomes using the resin are also described.
-
公开(公告)号:US10662304B2
公开(公告)日:2020-05-26
申请号:US14588080
申请日:2014-12-31
Inventor: Choung Lai , Ajay Padwal , Marie J. Demers , David W. Stresing , John E. Langlois
Abstract: Embodiments of the present disclosure are directed to a composition and composite for protecting a transmission/reception device. The composite can include a reinforcing material and a cured epoxy composition impregnating the reinforcing material. The cured epoxy composition can contain reaction constituents including less than 50% stoichiometric amount of an anhydride curing agent to an epoxy resin. The composite can exhibit synergistic improvements in mechanical strength, weatherability, and signal transmission properties.
-
公开(公告)号:US20150307670A1
公开(公告)日:2015-10-29
申请号:US14694600
申请日:2015-04-23
Inventor: Brian McNamara , Edward Cooke , Marta Miciula-Osak , Ian D. Hutcheson , Dale Thomas , Joachim Reder , Ajay Padwal
IPC: C08J5/04
CPC classification number: C08J5/04 , C08J2327/18 , D06M15/256 , F16C33/122 , F16C2208/02 , F16C2208/30
Abstract: The present disclosure is directed to composite structures, such as low friction liners, exhibiting superior performance. In certain embodiments of the present disclosure, a composite structure can include a first outer major surface adapted to contact a movable surface, and a second outer major surface adapted to contact a stationary surface, wherein the first outer major surface has a lower surface roughness than the second outer major surface, and wherein the composite has a mean average thickness of less than 0.3 mm. The composite structure can have unexpected synergistic improvement in properties such as low surface roughness, high dielectric strength, high resistance to edge wicking, high resistance to surface wicking, low content of surface defects, an increased abrasion resistance, and combinations thereof, particularly the maintenance of these properties over a long life.
Abstract translation: 本公开涉及复合结构,例如低摩擦衬垫,表现出优异的性能。 在本公开的某些实施例中,复合结构可以包括适于接触可移动表面的第一外主表面和适于接触固定表面的第二外主表面,其中第一外主表面具有比 第二外主表面,并且其中复合材料的平均平均厚度小于0.3mm。 复合结构可以在诸如低表面粗糙度,高介电强度,高耐边缘芯吸,高抗表面芯吸,低含量的表面缺陷,增加的耐磨性及其组合的性能方面具有意想不到的协同改进,特别是维护 的这些属性在长寿命。
-
公开(公告)号:US20190112406A1
公开(公告)日:2019-04-18
申请号:US16205584
申请日:2018-11-30
Inventor: Kapsoo Cheon , Ajay Padwal
Abstract: Certain embodiments are directed to resins comprising norbornene derivatives for use in structures such as radomes. In some examples, the radome comprises a dielectric constant of less than 2.7, a loss tangent of less than 0.003 and a moisture absorption of less than 1.5%.
-
公开(公告)号:US20150002364A1
公开(公告)日:2015-01-01
申请号:US14314059
申请日:2014-06-25
Inventor: Kapsoo Cheon , Marie J. Hersman , Ajay Padwal
CPC classification number: C08G67/00 , B32B5/022 , B32B5/024 , B32B9/005 , B32B9/007 , B32B9/045 , B32B27/08 , B32B27/12 , B32B27/16 , B32B27/18 , B32B27/28 , B32B27/281 , B32B27/285 , B32B27/286 , B32B27/288 , B32B27/32 , B32B27/34 , B32B27/36 , B32B27/42 , B32B2260/02 , B32B2260/046 , B32B2262/101 , B32B2262/106 , B32B2264/108 , B32B2270/00 , B32B2307/546 , B32B2307/712 , B32B2307/732 , B32B2571/00 , C08J5/24 , C08J2373/00 , C08J2379/04 , C08K5/13 , C08L61/14 , H01Q1/422 , Y10T442/30 , Y10T442/60
Abstract: Certain embodiments are directed to cyanate resin blends comprising, for example, a mixture of a cyanate monomer and a cyanate oligomer. The resin blends are effective to provide a dielectric constant of less than 2.7, a glass transition temperature of at least 150° C. and a moisture absorption of less than 1.5%. Radomes using the resin are also described.
Abstract translation: 某些实施方案涉及包含例如氰酸酯单体和氰酸酯低聚物的混合物的氰酸酯树脂共混物。 树脂共混物有效地提供小于2.7的介电常数,至少150℃的玻璃化转变温度和小于1.5%的吸湿性。 还描述了使用树脂的放射线。
-
公开(公告)号:US20180258223A1
公开(公告)日:2018-09-13
申请号:US15913759
申请日:2018-03-06
Inventor: Kapsoo Cheon , Marie J. Demers , Ajay Padwal
CPC classification number: C08G67/00 , B32B5/022 , B32B5/024 , B32B9/005 , B32B9/007 , B32B9/045 , B32B27/08 , B32B27/12 , B32B27/16 , B32B27/18 , B32B27/28 , B32B27/281 , B32B27/285 , B32B27/286 , B32B27/288 , B32B27/32 , B32B27/34 , B32B27/36 , B32B27/42 , B32B2260/02 , B32B2260/046 , B32B2262/101 , B32B2262/106 , B32B2264/108 , B32B2270/00 , B32B2307/546 , B32B2307/712 , B32B2307/732 , B32B2571/00 , C08J5/24 , C08J2373/00 , C08J2379/04 , C08K5/13 , C08L61/14 , H01Q1/422 , Y10T442/30 , Y10T442/60
Abstract: Certain embodiments are directed to cyanate resin blends comprising, for example, a mixture of a cyanate monomer and a cyanate oligomer. The resin blends are effective to provide a dielectric constant of less than 2.7, a glass transition temperature of at least 150° C. and a moisture absorption of less than 1.5%. Radomes using the resin are also described.
-
公开(公告)号:US09914803B2
公开(公告)日:2018-03-13
申请号:US14314059
申请日:2014-06-25
Inventor: Kapsoo Cheon , Marie J. Demers , Ajay Padwal
CPC classification number: C08G67/00 , B32B5/022 , B32B5/024 , B32B9/005 , B32B9/007 , B32B9/045 , B32B27/08 , B32B27/12 , B32B27/16 , B32B27/18 , B32B27/28 , B32B27/281 , B32B27/285 , B32B27/286 , B32B27/288 , B32B27/32 , B32B27/34 , B32B27/36 , B32B27/42 , B32B2260/02 , B32B2260/046 , B32B2262/101 , B32B2262/106 , B32B2264/108 , B32B2270/00 , B32B2307/546 , B32B2307/712 , B32B2307/732 , B32B2571/00 , C08J5/24 , C08J2373/00 , C08J2379/04 , C08K5/13 , C08L61/14 , H01Q1/422 , Y10T442/30 , Y10T442/60
Abstract: Certain embodiments are directed to cyanate resin blends comprising, for example, a mixture of a cyanate monomer and a cyanate oligomer. The resin blends are effective to provide a dielectric constant of less than 2.7, a glass transition temperature of at least 150° C. and a moisture absorption of less than 1.5%. Radomes using the resin are also described.
-
8.
公开(公告)号:US20160297941A1
公开(公告)日:2016-10-13
申请号:US14588080
申请日:2014-12-31
Inventor: Choung Lai , Ajay Padwal , Marie J. Demers , David W. Stresing , John E. Langlois
Abstract: Embodiments of the present disclosure are directed to a composition and composite for protecting a transmission/reception device. The composite can include a reinforcing material and a cured epoxy composition impregnating the reinforcing material. The cured epoxy composition can contain reaction constituents including less than 50% stoichiometric amount of an anhydride curing agent to an epoxy resin. The composite can exhibit synergistic improvements in mechanical strength, weatherability, and signal transmission properties.
Abstract translation: 本公开的实施例涉及用于保护发送/接收装置的组合物和复合物。 复合材料可以包括增强材料和浸渍增强材料的固化环氧组合物。 固化的环氧组合物可以含有包含小于50%化学计量量的酸酐固化剂与环氧树脂的反应组分。 该复合材料可以在机械强度,耐候性和信号传输性能方面表现出协同的改进。
-
公开(公告)号:US20150004423A1
公开(公告)日:2015-01-01
申请号:US14314062
申请日:2014-06-25
Inventor: Kapsoo Cheon , Ajay Padwal
IPC: H01Q1/42 , C08F232/08 , C08F32/08
CPC classification number: C08F232/08 , C08G61/08 , C08G61/12 , C08G2261/135 , C08G2261/3324 , C08G2261/3325 , C08G2261/418 , C08G2261/614 , C08G2261/62 , C08G2261/65 , C08G2261/74 , C08G2261/76 , C08J5/24 , C08L65/00 , H01Q1/422 , Y10T428/31931 , C08K7/10 , C08K7/14
Abstract: Certain embodiments are directed to resins comprising norbornene derivatives for use in structures such as radomes. In some examples, the radome comprises a dielectric constant of less than 2.7, a loss tangent of less than 0.003 and a moisture absorption of less than 1.5%.
Abstract translation: 某些实施方案涉及包含降冰片烯衍生物的树脂,用于诸如天线罩的结构。 在一些示例中,天线罩包括小于2.7的介电常数,小于0.003的损耗角正切和小于1.5%的吸湿性。
-
-
-
-
-
-
-
-