Ziegler-Natta catalyst systems modified during their preparation
    1.
    发明授权
    Ziegler-Natta catalyst systems modified during their preparation 失效
    齐格勒 - 纳塔催化剂体系在制备过程中改进

    公开(公告)号:US6107231A

    公开(公告)日:2000-08-22

    申请号:US928526

    申请日:1997-09-12

    CPC分类号: C08F10/00 C08F110/06

    摘要: In catalyst systems of the Ziegler-Natta type comprising as active constituentsa) a titanium-containing solid component which is obtained by reacting a compound of titanium with a compound of magnesium, a halogen, an inorganic oxide as support, a C.sub.1 -C.sub.8 -alkanol and a carboxylic ester as electron donor compound,and also as cocatalyst,b) an aluminum compound andc) if desired, a further electron donor compound,the reaction of the individual components for preparing the titanium-containing solid component a) is carried out in the presence of an aromatic hydrocarbon as solvent.

    摘要翻译: 在包含作为活性成分的齐格勒 - 纳塔型催化剂体系中,a)通过使钛化合物与镁,卤素,作为载体的无机氧化物,C1-C8- 链烷醇和羧酸酯作为电子给体化合物,以及作为助催化剂,b)铝化合物和c)如果需要,还可以进一步施加电子给体化合物,用于制备含钛固体组分a)的各组分的反应 在芳族烃作为溶剂的存在下。

    Ziegler-Natta catalyst systems modified during their preparation
    2.
    发明授权
    Ziegler-Natta catalyst systems modified during their preparation 失效
    齐格勒 - 纳塔催化剂体系在制备过程中改进

    公开(公告)号:US6156691A

    公开(公告)日:2000-12-05

    申请号:US928394

    申请日:1997-09-12

    CPC分类号: C08F10/00

    摘要: In catalyst systems of the Ziegler-Natta type modified during their preparation and comprising as active constituentsa) a titanium-containing solid component which is obtained by reacting a compound of titanium with a compound of magnesium, a halogen, an inorganic oxide as support, a C.sub.1 -C.sub.8 -alkanol and a carboxylic ester as electron donor compound,and also as cocatalystb) an aluminum compound andc) if desired, a further electron donor compound,the titanium-containing solid component a) is prepared by first, in a first stage, admixing an inorganic oxide as support with a solution of a chlorine-free compound of magnesium in an inert solvent, stirring this mixture for from 0.5 to 5 hours at from 10 to 120.degree. C. and subsequently reacting it while stirring continually in an inert solvent with a C.sub.1 -C.sub.8 -alkanol in an at least 1.3-fold excess, based on the compound of magnesium, to give a chlorine-free intermediate, then, without purification or extraction of the intermediate, adding a compound of trivalent or tetravalent titanium and a carboxylic ester as electron donor compound to this intermediate, stirring the resulting mixture for at least 30 minutes at from 20 to 130.degree. C., subsequently filtering off and washing the solid thus obtained and subsequently, in a second stage, extracting the solid obtained from the first stage in an inert solvent comprising at least 5% by weight of titanium tetrachloride and washing it with a liquid alkane.

    摘要翻译: 在其制备过程中改性的齐格勒 - 纳塔型催化剂体系中,包含作为活性成分的含钛固体成分a)通过使钛化合物与镁,卤素,无机氧化物作为载体反应而得到的含钛固体成分, 作为电子给体化合物的C1-C8-链烷醇和羧酸酯,以及作为助催化剂的b)铝化合物,和c)如果需要,另外的电子给体化合物,含钛固体组分a)首先在 第一阶段,将无机氧化物作为载体与无氯化合物的镁在惰性溶剂中的溶液混合,在10至120℃下搅拌该混合物0.5至5小时,随后在持续搅拌下反应 在基于镁化合物的至少1.3倍过量的C 1 -C 8烷醇的惰性溶剂中,得到无氯中间体,然后不经纯化或萃取中间体,加入一种 磅三价或四价钛和羧酸酯作为电子给体化合物,在20至130℃下搅拌所得混合物至少30分钟,随后过滤并洗涤由此获得的固体,随后在 第二阶段,在包含至少5重量%的四氯化钛的惰性溶剂中萃取从第一阶段获得的固体,并用液体烷烃洗涤。

    Ziegler-natta catalyst systems containing specific organosilicon
compounds
    3.
    发明授权
    Ziegler-natta catalyst systems containing specific organosilicon compounds 失效
    含有特定有机硅化合物的齐格勒 - 纳塔催化剂体系

    公开(公告)号:US5773535A

    公开(公告)日:1998-06-30

    申请号:US814798

    申请日:1997-03-10

    CPC分类号: C08F10/00 C08F110/06

    摘要: Catalyst systems of the Ziegler-Natta type comprising as active constituents a) a titanium-containing solid component prepared using a titanium compound, a compound of magnesium, a halogenating agent and an electron donor component, b) an aluminum compound and c) as further electron donor component, an organosilicon compound of the formula (I) R.sup.1 R.sup.2 si(OR.sup.3).sub.2 (I) in which R.sup.1 is a C.sub.1 -C.sub.10 -alkyl radical or a C.sub.3 -C.sub.8 -cycloalkyl radical, R.sup.2 is a 2,4,4,6,6-pentamethylheptyl radical and R.sup.3 is a C.sub.1 -C.sub.8 -alkyl radical, are particularly suitable for the preparation of polymers of C.sub.2 -C.sub.10 -alk-1-enes.

    摘要翻译: 包含作为活性组分的齐格勒 - 纳塔型催化剂体系a)使用钛化合物,镁化合物,卤化剂和电子给体组分制备的含钛固体组分,b)铝化合物和c)进一步 电子给体组分,其中R 1是C 1 -C 10 - 烷基或C 3 -C 8环烷基的式(I)R 1 R 2si(OR 3)2(I)的有机硅化合物, 6,6-五甲基庚酰基和R 3是C 1 -C 8烷基,特别适用于制备C 2 -C 10 - 烷-1-烯的聚合物。

    Use of polyelectrolytes in the production of leather
    6.
    发明申请
    Use of polyelectrolytes in the production of leather 审中-公开
    在生产皮革时使用聚电解质

    公开(公告)号:US20050210596A1

    公开(公告)日:2005-09-29

    申请号:US10505448

    申请日:2003-03-12

    CPC分类号: C14C1/06 C14C1/08

    摘要: A process for the production of semifinished products and intermediates in the production of leather using one or more organic polyelectrolytes comprises at least one of the following steps: (a) Addition of one or more polyelectrolytes and from 0 to 0.7% by weight, based on the salted weight, of lime immediately before or during liming, (b) addition of one or more polyelectrolytes before or during deliming, (c) addition of one or more polyelectrolytes before or during bating, (d) addition of one or more polyelectrolytes and a total of from 0 to 3% by weight, based on the pelt weight, of alkali metal or alkaline earth metal salt immediately before or in the pickle.

    摘要翻译: 使用一种或多种有机聚电解质在生产皮革中生产半成品和中间体的方法包括以下步骤中的至少一个步骤:(a)加入一种或多种聚电解质和0至0.7重量%,基于 (b)在剥离之前或期间添加一种或多种聚电解质,(c)在或之前加入一种或多种聚电解质,(d)加入一种或多种聚电解质和 基于皮毛重量的0-3重量%的碱金属或碱土金属盐在紧挨之前或之中。

    Random propylene copolymers
    7.
    发明授权
    Random propylene copolymers 失效
    无规丙烯共聚物

    公开(公告)号:US5744567A

    公开(公告)日:1998-04-28

    申请号:US763839

    申请日:1996-12-04

    CPC分类号: C08F210/16 C08F210/06

    摘要: Random propylene copolymers containing copolymerized C.sub.2 -C.sub.10 -alk-1-enes are obtainable by polymerization of propylene and C.sub.2 -C.sub.10 -alk-1-enes in the presence of a Ziegler-Natta catalyst system comprising a titanium-containing solid component a) comprising a compound of magnesium, a halogen, silica gel as support and a carboxylic ester as electron donor compound, and also, as cocatalysts, an aluminum compound b) and a further electron donor compound c), where propylene and the C.sub.2 -C.sub.10 -alk-1-enes are polymerized with one another at from 50.degree. to 100.degree. C. at pressures in the range from 15 to 40 bar and mean residence times of from 0.5 to 5 hours and the support used in the titanium-containing solid component is a silica gel which has a mean particle diameter of from 5 to 200 .mu.m, a mean particle diameter of the primary particles of from 1 to 10 .mu.m and voids or channels having a mean diameter of from 1 to 10 .mu.m, which voids or channels have a macroscopic proportion by volume based on the total particle in the range from 5 to 20%.

    摘要翻译: 含有共聚的C 2 -C 10 - 烷-1-烯的无规丙烯共聚物可通过丙烯和C 2 -C 10 - 烯-1-烯的齐聚反应获得,该齐格勒 - 纳塔催化剂体系包含含钛的固体组分a) 镁,卤素,硅胶作为载体的化合物和作为电子给体化合物的羧酸酯,以及作为助催化剂的铝化合物b)和另外的电子给体化合物c),其中丙烯和C 2 -C 10 - 烷基 -1-烯烃在50至100℃的压力下彼此聚合,并且平均停留时间为0.5至5小时,并且在含钛固体组分中使用的载体为 平均粒径为5〜200μm,一次粒子的平均粒径为1〜10μm,平均粒径为1〜10μm的空隙或通道的硅胶,其空隙 或通道基于t的体积的宏观比例 他的总粒子在5〜20%的范围内。

    Process for Producing Aqueous Emulsions and Dispersions
    8.
    发明申请
    Process for Producing Aqueous Emulsions and Dispersions 审中-公开
    生产水性乳液和分散体的方法

    公开(公告)号:US20080274073A1

    公开(公告)日:2008-11-06

    申请号:US12090160

    申请日:2006-10-05

    CPC分类号: C08F222/06 C08F255/10

    摘要: The use of terpolymers, obtainable by free radical copolymerization of (a) at least one anhydride of a C3-C10-dicarboxylic acid, (b) at least one 1,1-di-(C1-C3-alkyl)-substituted C4-C8-olefin, (c) polyisobutene having an average molecular weight Mn in the range of from 200 to 10 000 g/mol and, if appropriate hydrolysis, for the preparation of aqueous emulsions or dispersions of hydrophobic substances with the use of not more than 2% by weight of further emulsifier, based on the total aqueous emulsion or dispersion.

    摘要翻译: 通过(a)至少一种C 3 -C 10 -C 10 - 二羧酸的酸酐的自由基共聚获得的三元共聚物的使用,(b)至少一种1 ,1-二 - (C 1 -C 3 - 烷基) - 取代的C 4 -C 8 - 烯烃,(c)平均分子量M N n N 2的聚异丁烯在200至10000g / mol范围内,如果适用水解,则用于制备疏水性物质的水性乳液或分散体与 使用不超过2重量%的其他乳化剂,基于总水乳液或分散体。

    Method for Treating Fibrous Substrates
    9.
    发明申请
    Method for Treating Fibrous Substrates 审中-公开
    纤维底物处理方法

    公开(公告)号:US20080249230A1

    公开(公告)日:2008-10-09

    申请号:US10572449

    申请日:2004-09-18

    IPC分类号: C08L33/02

    摘要: Fibrous substrates are treated with (a) at least one oligomer of branched or straight-chain C3-C10-alkene having an average molecular weight Mn of up to 1200 g/mol, (b) at least one emulsifier which is obtainable by copolymerization of (A) at least one ethylenically unsaturated dicarboxylic anhydride, derived from at least one dicarboxylic acid of 4 to 8 carbon atoms, (B) at least one oligomer of branched or straight-chain C3-C10-alkene, at least one oligomer having an average molecular weight Mn of up to 1200 g/mol, (C) at least one α-olefin of up to 16 carbon atoms and (D) optionally at least one ethylenically unsaturated comonomer, and optionally reaction with (E) at least one compound of the formula I a, I b, I c or I d and, if appropriate, subsequent contact with water, where, in formulae I a to I d, A1 are identical or different C2-C20-alkylene, R1 is linear or branched C1-C30-alkyl, phenyl or hydrogen, and n is an integer from 1 to 200.

    摘要翻译: 纤维底物用(a)至少一种具有平均分子量M N n的支链或直链C 3 -C 10 - 亚烯基的低聚物处理, (a)至少一种烯键式不饱和二羧酸酐,其由至少一种4-8个碳原子的二羧酸共聚得到(A)至少一种乙烯基不饱和二羧酸酐, B)至少一种支链或直链C 3 -C 10 - 烯烃的低聚物,至少一种平均分子量为M < (C)至少一种至多16个碳原子的α-烯烃和(D)任选的至少一种烯键式不饱和共聚单体,并且任选地与(E)至少一种式 式I a,I b,I c或I d,并且如果适用,随后与水接触,其中在式I a至I d中,A 1至A 1相同或不同C 2 C 20 - 亚烷基,R 1是直链或支链的 C 1 -C 30烷基,苯基或氢,n是1至200的整数。

    Adducts based on cyclic compounds and the use thereof as tanning agents and curing agents

    公开(公告)号:US20060101583A1

    公开(公告)日:2006-05-18

    申请号:US10543495

    申请日:2004-01-21

    IPC分类号: C14C1/00

    摘要: The invention relates to adducts that can be obtained by reacting carbonyl compounds of general formula (I) in which the variables are defined as follows: R1 and R2 are selected among hydrogen, C1-C12 alkyl, C3-C12 cycloalkyl, substituted or unsubstituted, C7-C13 aralkyl, C6-C14 aryl, substituted or unsubstituted, whereby R1 and R2 can be bounds to one another while forming a ring. These carbonyl compounds are reacted with cyclic compounds of general formula (II) in which the variables are defined as follows: X is selected among oxygen, sulfur and N—R8; R3 and R8 are the same or different and are selected among hydrogen, C1-C12 alkyl, C3-C12 cycloalkyl, substituted or unsubstituted, C7-C13 aralkyl, C6-C14 aryl, substituted or unsubstituted, formyl, CO—C1-C12 alkyl, CO—C3-C12 cycloalkyl, substituted or unsubstituted, CO—C7-C13 aralkyl, CO—C6-C14 aryl, whereby in the event X═N—R8, R3 and R8 can be bound to one another while forming a ring; R4, R5 and R6 are the same or different and are selected among hydrogen, C1-C12 alkyl, C3-C12 cycloalkyl, substituted or unsubstituted, C7-C13 aralkyl, C6-C14 aryl, substituted or unsubstituted, whereby two adjacent radicals at time can be bound to one another while forming a ring; n represents a integer ranging from 1 to 4, and; R7 is the same or different and is selected among hydrogen, C1-C12 alkyl, C3-C12 cycloalkyl, substituted or unsubstituted, C7-C13 aralkyl, C6-C14 aryl, substituted or unsubstituted, whereby two adjacent radicals R7 at time can be bound to one another or R6 or R4 can be bound to adjacent R7 while forming a ring.