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    • 1. 发明申请
    • POLYCARBONATE-POLYSILOXANE COPOLYMERS, METHOD OF MAKING, AND ARTICLES FORMED THEREFROM
    • 聚碳酸酯 - 聚硅氧烷共聚物,制备方法和形成的制品
    • WO2008042498A1
    • 2008-04-10
    • PCT/US2007/074720
    • 2007-07-30
    • GENERAL ELECTRIC COMPANYLENS, Jan, PleunMULLEN, Brian, D.
    • LENS, Jan, PleunMULLEN, Brian, D.
    • C08G64/18
    • C08G64/186C08G77/448
    • A polycarbonate copolymer comprising 40 to 89 mol% of units derived from a bisphenol of the formula (1) wherein R a' and R b' are each independently C 1-12 alkyl, T is a C 5-16 cycloalkylene, a C 5-16 cylcloalkyliden, a C 1-5 alkylene, a C 1-5 alkylidene, a C 6-13 arylene, a C 7-12 arylatkylene, C 7-12 arylalkylidene, a C 7-12 alkyiarylene, or a a C 7-12 arylenealkyi, and r and s are each independently 1 to 4; 2 to 35 wt.% of units derived from a polysiloxane diol of the formulas (2) or (2') or a combination thereof, wherein Ar is a substituted or unsubstituted C 6-36 arylene group, each R is the same or different C 1-13 monovalent organic group, each R 6 is the same or different divalent C 1 -C 30 organic group, and E is an integer from 4 to 100; and 11 to 60 mol% of units derived from a dihydroxy aromatic compound of formula (3) wherein R a and R b are each independently a halogen or C 1-12 alkyl group, X a is a direct bond or a C 1-18 organic group, p and q are each independently integers of 0 to 4, and the dihydroxy aromatic compound of formula 3 is not the same as the bisphenol of formula 1 or the polysiloxane diols. The polymers are of particular utility in medical applications.
    • 包含40至89摩尔%的衍生自式(1)的双酚的单元的聚碳酸酯共聚物,其中R a a'和R b''各自独立地为C 1-12烷基,T是C 5-16亚烷基,C 5-16亚烷基亚烷基,C 1-5 - 亚烷基 亚烷基,C 1-5亚烷基,C 6-13亚芳基,C 7-12芳基亚烷基,C 7 -12芳烷基亚烷基,C 7-12亚烷基亚芳基或C 7-12亚芳基烷基,r和s各自独立地为1至4; 2〜35重量%的衍生自式(2)或(2')的聚硅氧烷二醇的单元或其组合,其中Ar是取代或未取代的C 6〜36亚芳基, 每个R是相同或不同的C 1-13个一价有机基团,每个R 6是相同或不同的二价C 1 -C 1 - SUB> 30 有机基团,E为4至100的整数; 和11至60摩尔%的衍生自式(3)的二羟基芳族化合物的单元,其中R a和R b各自独立地为卤素或C 1 -12个烷基,X a是直接键或C 1-18族有机基团,p和q各自独立地为0至4的整数, 并且式3的二羟基芳族化合物与式1的双酚或聚硅氧烷二醇不同。 聚合物在医疗应用中特别有用。
    • 2. 发明申请
    • FLAME RETARDANT AND SCRATCH RESISTANT THERMOPLASTIC POLYCARBONATE COMPOSITIONS
    • 阻燃和抗刮擦热塑性聚碳酸酯组合物
    • WO2008054884A2
    • 2008-05-08
    • PCT/US2007/070674
    • 2007-06-08
    • GENERAL ELECTRIC COMPANYSIRIPURAPU, SrinivasAGARWAL, NaveenLENS, Jan, Pleun
    • SIRIPURAPU, SrinivasAGARWAL, NaveenLENS, Jan, Pleun
    • C08L69/00C08K5/005C08K5/523C08L51/04C08L53/00C08L55/02C08L83/10C08L2666/02
    • A thermoplastic composition comprising in combination a polycarbonate homopolymer or copolymer comprising repeat carbonate units having the following structure: (I) wherein Ri and R2 are independently at each occurrence a Ci -C4 alkyl, n and p are each an integer having a value of 1 to 4, and T is selected from the group consisting of C5-Ci0 cycloalkanes attached to the aryl groups at one or two carbons, Ci-C5 alkyl groups, C6-C13 aryl groups, and C7-C12 aryl alkyl groups; an impact modifier, wherein the impact modifier comprises a first impact modifier comprising a polycarbonate - polysiloxane copolymer and a second impact modifier different from the first impact modifier; and a flame retardant is disclosed. The compositions have excellent scratch resistance as well as an improved balance of physical properties such as impact strength and spiral flow, while at the same time maintaining their good flame performance.
    • 一种热塑性组合物,其包含组合包含具有以下结构的重复碳酸酯单元的聚碳酸酯均聚物或共聚物:(I)其中R 1和R 2在每次出现时独立地为C 1 -C 4烷基,n和p为 每个整数具有1至4的值,并且T选自由一个或两个碳原子连接至芳基的C 1 -C 10环烷烃,C 1 -C 5烷基,C 6 -C 13芳基和C 7 -C 10芳基组成的组, C12芳基烷基; 冲击改性剂,其中所述抗冲改性剂包含第一抗冲改性剂,所述第一抗冲改性剂包含聚碳酸酯 - 聚硅氧烷共聚物和不同于所述第一抗冲改性剂的第二抗冲改性剂; 并公开了阻燃剂。 该组合物具有优异的耐刮擦性以及物理性能如冲击强度和螺旋流动的平衡的改善,同时保持其良好的火焰性能。
    • 3. 发明申请
    • METHOD FOR MAKING COPOLYCARBONATES
    • 制备共聚碳酸酯的方法
    • WO2004041907A1
    • 2004-05-21
    • PCT/US2003/033716
    • 2003-10-24
    • GENERAL ELECTRIC COMPANYLENS, Jan, PleunKAMPS, Jan, Henk
    • LENS, Jan, PleunKAMPS, Jan, Henk
    • C08G64/30
    • C08G64/307C08G64/06
    • A melt polymerization method is presented which permits the efficient preparation of copolycarbonates in which one or more of the constituent dehydroxy aromatic compounds employed is relatively volatile, having a boiling point of less than about 340 °C. Relatively volatile dihydroxy aromatic compounds are illustrated by dihydroxybenzenes such as hydroquinone, methyl hydroquinone and resorcinol. Known methods for the preparation of members of this class of copolycarbonates, such as the melt reaction of bisphenol A and resorcinol diphenyl carbonate in the presence of sodium hydroxide and tetraalkylammonium salt catalyst systems, suffer losses in efficiency due to the resorcinol being entrained out of the polymerization mixture with by-product phenol. Catalyst systems including quaternary phosphonium salts are shown to have improved performance with respect to the amount of volatile dihydroxy aromatic compound actually incorporated into the product copolycarbonate.
    • 提出了熔融聚合方法,其可以有效地制备其中一种或多种所用的组分脱羟基芳族化合物相对挥发的共聚碳酸酯,其沸点低于约340℃。 相对挥发性的二羟基芳族化合物由二羟基苯如氢醌,甲基氢醌和间苯二酚表示。 用于制备这种类型的共聚碳酸酯的成员的已知方法,例如双酚A和间苯二酚碳酸二苯酯在氢氧化钠和四烷基铵盐催化剂体系的存在下的熔融反应,由于间苯二酚被夹带在 聚合混合物与副产物苯酚。 显示出包含季鏻盐的催化剂体系相对于实际掺入到产物共聚碳酸酯中的挥发性二羟基芳族化合物的量具有改进的性能。
    • 9. 发明申请
    • PROCESS FOR PRODUCTION OF COPOLYCARBONATES WITH REDUCED COLOR
    • 生产具有降低颜色的共聚碳酸酯的方法
    • WO2005073274A1
    • 2005-08-11
    • PCT/US2005/002186
    • 2005-01-20
    • GENERAL ELECTRIC COMPANY?KAMPS, Jan, HenkLENS, Jan, Pleun
    • KAMPS, Jan, HenkLENS, Jan, Pleun
    • C08G64/30
    • C08G64/307
    • A method is provided for reducing the color generated during production of copolycarbonate that includes quinone-type residues. The method includes the steps preparing a reaction mixture containing precursors of monomer residues, selecting a catalyst, introduction strategy and adding catalysts according to the strategy. The strategy is sufficient to result in a product copolycarbonate with improved color. The method further includes the steps of introducing the reaction mixture to a series of process units and allowing the reaction mixture to polymerize thereby forming a copolycarbonate. The resulting copolycarbonate has improved color as compared to a copolycarbonate formed in a process without the steps of selecting a catalyst introduction strategy and introducing catalysts according to the selected strategy.
    • 提供了一种减少在包括醌型残留物的共聚碳酸酯生产期间产生的颜色的方法。 该方法包括制备含有单体残基前体的反应混合物,选择催化剂,引入策略和根据该策略加入催化剂的步骤。 该策略足以产生具有改进颜色的产品共聚碳酸酯。 该方法还包括将反应混合物引入一系列处理单元并使反应混合物聚合从而形成共聚碳酸酯的步骤。 所得共聚碳酸酯与在不进行选择催化剂引入策略和引入催化剂的步骤的步骤中形成的方法相比,具有改进的颜色。