Weatherable, thermostable polymers having improved flow composition
    1.
    发明授权
    Weatherable, thermostable polymers having improved flow composition 有权
    具有改善流动组成的耐候性耐热聚合物

    公开(公告)号:US07605221B2

    公开(公告)日:2009-10-20

    申请号:US11426680

    申请日:2006-06-27

    IPC分类号: C08G77/14

    摘要: A copolymer composition comprises a polysiloxane block of Formula XIX or XXII, having 4 to 50 siloxane units, and a polyarylate-polycarbonate block consisting essentially of 50 to 99 mol % arylate polyester units and 1 to 50 mol % aromatic carbonate units, wherein 1 to 30 mole percent of the aromatic carbonate units are resorcinol carbonates, and 0 to 35 mol % of the aromatic carbonate units are bisphenol carbonates; wherein the sum of mole percentages of arylate polyester units, and aromatic carbonate units is 100 mol %; the polysiloxane blocks connect to an arylate ester unit, and/or an aromatic carbonate unit; the siloxane units of the polysiloxane block are present at 0.2 to 10 wt % based on weight of the copolymer composition; and a molded article of 3.2±0.12 millimeters thickness and consisting of the copolymer composition has a percent transmittance greater than or equal to 70%, according to ASTM D1003-00.

    摘要翻译: 共聚物组合物包含具有4至50个硅氧烷单元的式XIX或XXII的聚硅氧烷嵌段和基本上由50至99mol%芳基化聚酯单元和1至50mol%芳族碳酸酯单元组成的聚芳酯 - 聚碳酸酯嵌段,其中1至 30摩尔%的芳族碳酸酯单元是间苯二酚碳酸酯,0-35摩尔%的芳族碳酸酯单元是双酚碳酸酯; 其中芳基化聚酯单元和芳族碳酸酯单元的摩尔百分比之和为100摩尔%。 聚硅氧烷嵌段连接到芳基酯单元和/或芳族碳酸酯单元; 聚硅氧烷嵌段的硅氧烷单元以基于共聚物组合物的重量计为0.2-10重量%存在; 并且根据ASTM D1003-00,由共聚物组合物组成的3.2±0.12毫米厚的模制品具有百分比透射率大于或等于70%。

    Polysiloxane copolymers, thermoplastic composition, and articles formed therefrom
    2.
    发明授权
    Polysiloxane copolymers, thermoplastic composition, and articles formed therefrom 有权
    聚硅氧烷共聚物,热塑性组合物和由其形成的制品

    公开(公告)号:US07790292B2

    公开(公告)日:2010-09-07

    申请号:US11537154

    申请日:2006-09-29

    IPC分类号: C08G77/14

    摘要: A polysiloxane copolymer composition comprises: a polysiloxane unit comprising 4 to 50 siloxane units, and a polyester-polycarbonate unit consisting of 50 to 100 mole percent of arylate ester units, less than 50 mole percent aromatic carbonate units, less than 30 mole percent resorcinol carbonate units, and less than 35 mole percent bisphenol carbonate units, wherein the siloxane units are present in the polysiloxane unit in an amount of 0.2 to 10 wt % of the total weight of the polysiloxane copolymer composition, and wherein the polysiloxane copolymer composition has a 2 minute integrated heat release rate of less than or equal to 65 kilowatt-minutes per square meter (kW-min/m2) and a peak heat release rate of less than 65 kilowatts per square meter (kW/m2) as measured using the method of FAR F25.4, in accordance with Federal Aviation Regulation FAR 25.853 (d). A window article for an aircraft, comprising the polysiloxane copolymer composition, is also disclosed.

    摘要翻译: 聚硅氧烷共聚物组合物包括:包含4至50个硅氧烷单元的聚硅氧烷单元和由50至100摩尔%的芳基酯单元,小于50摩尔%的芳族碳酸酯单元,小于30摩尔%的间苯二酚碳酸酯组成的聚酯 - 聚碳酸酯单元 单体和小于35摩尔%的双酚碳酸酯单元,其中硅氧烷单元以聚硅氧烷共聚物组合物总重量的0.2-10重量%的量存在于聚硅氧烷单元中,并且其中聚硅氧烷共聚物组合物具有2 小于或等于65千瓦分/平方米(kW-min / m2)的小时集成放热速率和小于65千瓦/平方米(kW / m 2)的峰值放热率,使用 FAR F25.4,根据联邦航空条例FAR 25.853(d)。 还公开了一种包含聚硅氧烷共聚物组合物的飞机用窗构件。

    Hydroxyarylestersiloxanes
    7.
    发明授权
    Hydroxyarylestersiloxanes 失效
    羟基芳基酯硅氧烷

    公开(公告)号:US5243009A

    公开(公告)日:1993-09-07

    申请号:US851704

    申请日:1992-03-16

    IPC分类号: C08G64/18 C08G77/448

    CPC分类号: C08G77/448 C08G64/186

    摘要: Silicone-polycarbonate block copolymers are provided resulting from the reaction of certain siloxy aromatic imide siloxanes or hydroxyaromatic ester siloxanes which are made by effecting reaction between an organosiloxane having terminal aromatic anhydride groups or aromatic haloacyl groups which are each attached to silicon by silicon arylene linkages with an appropriate bishydroxyarylene compounds or hydroxyarylene amino compound. The aforementioned hydroxyaromatic imide siloxanes or hydroxyaromatic ester siloxanes are then phosgenated with a dihydric phenol or an aromatic bischloroformate. The silicone-polycarbonate block copolymers have been found to be flame retardant and useful as dielectric films and membranes, and as flame retardants in aromatic polycarbonates.

    摘要翻译: 提供的硅氧烷 - 聚碳酸酯嵌段共聚物是由某些甲硅烷氧基芳族酰亚胺硅氧烷或羟基芳族酯硅氧烷的反应产生的,这些硅氧烷或羟基芳族酯硅氧烷是通过使具有末端芳族酸酐基团的有机硅氧烷或芳族卤代酰基与硅烷基链接在硅上的反应制得的, 合适的双羟基亚芳基化合物或羟基亚芳基氨基化合物。 然后将上述羟基芳族酰亚胺硅氧烷或羟基芳族酯硅氧烷用二元酚或芳族双氯甲酸酯进行光气化。 已经发现硅氧烷 - 聚碳酸酯嵌段共聚物是阻燃剂并且可用作介电膜和膜,并且作为芳族聚碳酸酯中的阻燃剂。