Process for the preparation of vinylaromatic polymers with a high degree of syndiotaxy
    3.
    发明授权
    Process for the preparation of vinylaromatic polymers with a high degree of syndiotaxy 失效
    制备具有高度间同立构的乙烯基芳族聚合物的方法

    公开(公告)号:US06174973B1

    公开(公告)日:2001-01-16

    申请号:US09415912

    申请日:1999-10-12

    IPC分类号: C08F1204

    摘要: Process for the preparation of crystalline vinylaromatic polymers with a high degree of syndiotaxy which comprises polymerizing vinylaromatic monomers in the presence of a catalytic system essentially consisting of: a) a complex of titanium having the general formula: CpTiX1X2X3  (I) wherein Cp represents a cyclopentadienyl ligand whereas X1, X2, X3, the same or different, are selected from a halogen such as chlorine, or from alkyl groups, alkoxides, carboxylates, di(alkyl)amides; b) a polyalkylaluminoxane wherein the alkyl group contains from 1 to 8 carbon atoms; c) aluminum trifluoride.

    摘要翻译: 用于制备具有高度间同立构的结晶乙烯基芳族聚合物的方法,其包括在催化体系存在下聚合乙烯基芳族单体,所述催化体系基本上由以下组成:a)具有以下通式的钛络合物:其中Cp表示环戊二烯基配体,而X1, X2,X3相同或不同,选自卤素如氯或烷基,醇盐,羧酸盐,二(烷基)酰胺; b)其中烷基含有1至8个碳原子的聚烷基铝氧烷; c )三氟化铝。

    Process for the preparation of crystalline vinylaromatic polymers with a
predominately syndiotactic structure
    4.
    发明授权
    Process for the preparation of crystalline vinylaromatic polymers with a predominately syndiotactic structure 失效
    制备具有主要间同立构结构的结晶乙烯基芳族聚合物的方法

    公开(公告)号:US6066706A

    公开(公告)日:2000-05-23

    申请号:US716882

    申请日:1996-09-20

    摘要: Process for the preparation of crystalline vinylaromatic polymers with a predominantly syndiotactic structure which comprises polymerizing the vinylaromatic monomers, alone or mixed with at least another copolymerizable ethylenically unsaturated monomer, in the presence of a catalytic system essentially consisting of:a) an adduct between a derivative of titanium having the formula R.sub.1 R.sub.2 R.sub.3 R.sub.4 Ti and a calix-[n]-arene, or an oxa-calix-[n]-arene;b) a co-catalyst selected from an alkylalumoxane and a compound of boron having the formula (II):BX.sub.1 X.sub.2 X.sub.3 or its salt.

    摘要翻译: 用于制备主要间同立构结构的结晶乙烯基芳族聚合物的方法,该方法包括在催化体系存在下单独或与至少另一种可共聚的烯属不饱和单体混合的乙烯基芳族单体聚合,所述催化体系基本上由以下组成:a)衍生物之间的加合物 具有式R1R2R3R4Ti和杯[ - ] - 芳烃或氧杂 - 杯 - [n] - 芳烃的钛; b)选自烷基铝氧烷和具有式(II)的硼化合物的助催化剂:BX1X2X3或其盐。

    Process for the preparation of crystalline vinylaromatic polymers with a
predominantly syndiotactic structure
    5.
    发明授权
    Process for the preparation of crystalline vinylaromatic polymers with a predominantly syndiotactic structure 失效
    具有主要间同立构结构的结晶乙烯基芳族聚合物的制备方法

    公开(公告)号:US5728784A

    公开(公告)日:1998-03-17

    申请号:US757251

    申请日:1996-11-27

    摘要: Process for the preparation of crystalline vinylaromatic polymers with a predominantly syndiotactic structure which comprises polymerizing vinylaromatic monomers, alone or mixed with at least one other monomer, in the presence of a catalytic system essentially consisting of: a) a complex of titanium or zirconium selected from those having general formula: MR.sub.1 R.sub.2 R.sub.3 R.sub.4, A.sub.1 MR.sub.1 R.sub.2 R.sub.3, A.sub.1 A.sub.2 MR.sub.1 R.sub.2 (I) b) a co-catalyst selected from an alkylalumoxane and a compound of boron having formula (II): BX.sub.1 X.sub.2 X.sub.3 (II) or one of its salts; c) a derivative of tin having general formula: SnR.sub.5 R.sub.6 R.sub.7 R.sub.8 (III)

    摘要翻译: 制备具有主要间同立构结构的结晶乙烯基芳族聚合物的方法,其包括在催化体系存在下单独或与至少一种其它单体混合的乙烯基芳族单体聚合,所述催化体系基本上由以下组成:a)选自 具有通式:MR1R2R3R4,A1MR1R2R3,A1A2MR1R2(I)的共催化剂b)选自烷基铝氧烷和具有式(II)的硼化合物的助催化剂:BX1X2X3(Ⅱ)或其盐之一; c)具有以下通式的锡衍生物:SnR 5 R 6 R 7 R 8(III)

    Polyester compositions with a high crystallization rate
    7.
    发明授权
    Polyester compositions with a high crystallization rate 失效
    具有高结晶速率的聚酯组合物

    公开(公告)号:US5334343A

    公开(公告)日:1994-08-02

    申请号:US850041

    申请日:1992-03-12

    CPC分类号: C08K5/12

    摘要: Polyester compositions with a high crystallization rate obtained by mixing, at a high temperature, a polyester resin with at least one organic compound having the general formula:ROOC--Ar--OOC--Ar'--COO--Ar--COOR (I)where R represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl radical whereare Ar and Ar', either the same or different, represent a simple or condensed aromatic radical containing from 6 to 12 carbon atoms, and cooling the mixture thus obtained to room temperature.

    摘要翻译: 通过在高温下将聚酯树脂与至少一种具有以下通式的有机化合物:ROOC-Ar-OOC-Ar'-COO-Ar-COOR(I)混合而获得的具有高结晶速率的聚酯组合物,其中R表示 氢原子或C1-C4烷基,其中Ar和Ar'相同或不同,表示含有6至12个碳原子的简单或缩合的芳族基团,并将由此获得的混合物冷却至室温。

    COPOLYMERS FOR SOLAR CELLS BASED ON ACRIDONIC UNITS
    9.
    发明申请
    COPOLYMERS FOR SOLAR CELLS BASED ON ACRIDONIC UNITS 有权
    基于ACRIDONIC单位的太阳能电池共聚物

    公开(公告)号:US20130001474A1

    公开(公告)日:2013-01-03

    申请号:US13516857

    申请日:2010-12-15

    IPC分类号: C08G75/32 C08G73/08 H01B1/12

    摘要: The present invention relates to copolymers for solar cells based on acridonic units comprising: a monomeric unit (A) having general formula (I) wherein X is S or Se, Y is 0, S or NR′ and R′, R′, the same or different, are C4-C24 alkyl groups, aryl groups optionally substituted with other functional groups, acyl groups or thioacyl groups; at least one monomer unit (B) having general formula (II) wherein Z is 0, S, Se or N—R″, wherein R″ is a C4-C24 alkyl group, an aryl group op-tionally substituted with other functional groups, an acyl group or thioacyl group, said monomeric unit (B) being connected to any position available of a hetero-aromatic side ring of the unit (A) through one of the two positions indicated by the dashed lines in general formula (II). Photovoltaic devices comprising said alternating π-conjugated polymers are also described.

    摘要翻译: 本发明涉及基于吖啶单体的太阳能电池用共聚物,包括:具有通式(I)的单体单元(A),其中X为S或Se,Y为0,S或NR',R',R', 相同或不同的是C 4 -C 24烷基,任选被其它官能团取代的芳基,酰基或硫代酰基; 至少一种具有通式(II)的单体单元(B),其中Z为0,S,Se或N-R“,其中R”为C 4 -C 24烷基,被其它官能团取代的芳基 ,酰基或硫代酰基,所述单体单元(B)通过通式(II)中的虚线所示的两个位置之一连接到单元(A)的杂芳族侧环的任何位置上, 。 还描述了包含所述交替共轭聚合物的光伏器件。