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61.
公开(公告)号:US09388272B2
公开(公告)日:2016-07-12
申请号:US14602279
申请日:2015-01-22
Applicant: The Boeing Company
Inventor: Andrew P. Nowak , Chaoyin Zhou , Richard E. Sharp
CPC classification number: C09D183/10 , B05D3/002 , C08G18/61 , C08G18/73 , C08G77/16 , C08G77/388 , C08G77/46 , C08K5/29 , C08L71/00 , C08L83/04 , C08L83/10
Abstract: There is provided a method of synthesizing a segmented copolymer that includes mixing one or more α,ω (alpha, omega) amine or α,ω (alpha, omega) hydroxyl terminated polysiloxane first soft segments having an average molecular weight of between about 2500 grams per mole to about 10,000 grams per mole, and one or more diisocyanate species, together to form a first reaction product; mixing the first reaction product and one or more low molecular weight diol or diamine chain extenders each having an average molecular weight of less than 400 grams per mole, together in a solvent to form a segmented copolymer; and, removing the solvent.
Abstract translation: 提供了一种合成分段共聚物的方法,其包括混合一种或多种α,ω(α,ω)胺或α,ω(α,ω)羟基封端的聚硅氧烷,平均分子量为约2500克 每摩尔至约10,000克/摩尔,和一种或多种二异氰酸酯物质一起形成第一反应产物; 将第一反应产物和平均分子量小于400克/摩尔的一种或多种低分子量二醇或二胺增链剂一起在溶剂中混合以形成分段共聚物; 并除去溶剂。
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公开(公告)号:US20160009864A1
公开(公告)日:2016-01-14
申请号:US14329884
申请日:2014-07-11
Applicant: The Boeing Company
Inventor: Chaoyin Zhou , Andrew P. Nowak , Richard E. Sharp , Wen Li , James E. French
CPC classification number: C08G77/04 , C08G77/42 , C08G77/44 , C08G77/442 , C08G77/48 , C08G77/52 , C08G77/56 , C08G77/58 , C08G77/80 , C08K3/22 , C08K5/54 , C08K5/5415 , C08K5/57 , C08K2003/2241 , C08K2003/2265 , C08K2003/2272 , C08L83/10 , C08L83/14
Abstract: Methods and formulations for modified silicone resins of Formula (II) are presented. Formula (II) comprises at least one of each of the following subunits: The R1, R2, R3, R6, R7, R8, R9, R10, R11, R12 and R13 are each independently selected from a group consisting of H, alkyl, alkenyl, alkynyl, and aryl. The X is selected from a group consisting of arylene, transition metal, inorganic oxide, and silsesquioxane. The values oft ranges from 1 to 10, y ranges from 1 to 200 and z ranges from 1 to 1,000. The elastomeric materials prepared from modified silicone resins display robust mechanical properties following prolonged exposure to high temperatures (e.g., 316° C. or higher).
Abstract translation: 提出了式(II)改性有机硅树脂的方法和配方。 式(II)包括以下亚基中的至少一个:R 1,R 2,R 3,R 6,R 7,R 8,R 9,R 10,R 11,R 12和R 13各自独立地选自H,烷基, 烯基,炔基和芳基。 X选自亚芳基,过渡金属,无机氧化物和倍半硅氧烷。 t值为1〜10,y为1〜200,z为1〜1,000。 由改性硅树脂制备的弹性体材料在长时间暴露于高温(例如316℃或更高)后显示出坚固的机械性能。
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63.
公开(公告)号:US08957175B1
公开(公告)日:2015-02-17
申请号:US13716084
申请日:2012-12-14
Applicant: The Boeing Company
Inventor: Andrew P. Nowak , Chaoyin Zhou , Richard E. Sharp
IPC: C08G77/26 , C08G77/388
CPC classification number: C09D183/10 , B05D3/002 , C08G18/61 , C08G18/73 , C08G77/16 , C08G77/388 , C08G77/46 , C08K5/29 , C08L71/00 , C08L83/04 , C08L83/10
Abstract: There is provided segmented copolymer compositions and methods of making the same. The composition has one or more α,ω (alpha, omega) amine or α,ω (alpha, omega) hydroxyl terminated polysiloxane first soft segments having an average molecular weight of between about 2500 grams per mole to about 10,000 grams per mole. The composition further has one or more diisocyanate species. The composition further has one or more low molecular weight diol or diamine chain extenders each having an average molecular weight of less than 400 grams per mole. The composition has a high flexibility at an environmental temperature of down to about −100 degrees Celsius, and further has a percent elongation of greater than about 250%, a high tensile strength of greater than about 25 MPa (megapascals), and a single low glass transition temperature (Tg) in a range of from about −60 degrees Celsius to about −110 degrees Celsius.
Abstract translation: 提供了分段共聚物组合物及其制备方法。 该组合物具有一个或多个α,ω(α,ω)胺或α,ω(α,ω)羟基封端的聚硅氧烷第一软链段,其平均分子量为约2500克/摩尔至约10,000克/摩尔。 组合物还具有一种或多种二异氰酸酯物质。 该组合物还具有一种或多种低分子量二醇或二胺扩链剂,其平均分子量小于400克/摩尔。 该组合物在低至约-100摄氏度的环境温度下具有高柔性,并且进一步具有大于约250%的百分比伸长率,大于约25MPa(兆帕)的高拉伸强度,以及单一低 玻璃化转变温度(Tg)在约-60摄氏度至约-110摄氏度的范围内。
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