Method Of Preparing Acrylic Polymers And Products Produced Thereby
    3.
    发明申请
    Method Of Preparing Acrylic Polymers And Products Produced Thereby 有权
    制备丙烯酸聚合物及其制备方法

    公开(公告)号:US20140336343A1

    公开(公告)日:2014-11-13

    申请号:US14366407

    申请日:2012-12-17

    发明人: Wei-Yeih Yang

    IPC分类号: C08F2/08

    摘要: A process for preparing a composition by free-radical polymerization of a monomer composition comprising: a) at least one ethylenically unsaturated carboxylic acid containing monomer or anhydride thereof; b) optionally at least one ethylenically unsaturated monomer different from a) but copolymerizable therewith; and c) at least one crosslinking monomer containing at least two ethylenically unsaturated groups. The monomer composition is polymerized in an organic medium having a solubilizing effect on one or more of the monomeric ingredients, but substantially none on the resulting polymer. The polymerization is conducted in the presence of a free radical forming catalyst and at least one steric stabilizing polymer polymerized from a vinyl lactam and a copolymerizable monomer selected from a short chain alkyl ester of (meth)acrylic acid, a long chain alkyl ester of (meth)acrylic acid, and combinations thereof.

    摘要翻译: 一种通过单体组合物的自由基聚合制备组合物的方法,包括:a)至少一种含烯属不饱和羧酸的单体或其酸酐; b)任选地至少一种不同于a)但与其可共聚的烯属不饱和单体; 和c)至少一种含有至少两个烯属不饱和基团的交联单体。 单体组合物在对一种或多种单体成分具有增溶作用的有机介质中聚合,但基本上不在所得聚合物上。 聚合反应在自由基形成催化剂和至少一种由乙烯基内酰胺聚合的空间稳定聚合物和选自(甲基)丙烯酸的短链烷基酯,(甲基)丙烯酸的长链烷基酯 甲基)丙烯酸及其组合。

    Polymerization process
    5.
    发明授权
    Polymerization process 失效
    聚合过程

    公开(公告)号:US07645845B2

    公开(公告)日:2010-01-12

    申请号:US11476560

    申请日:2006-06-29

    IPC分类号: C08F12/20

    CPC分类号: C08F14/18 C08F2/04 C08F2/08

    摘要: A process for producing a polymer by polymerizing at least one fluorinated monomer in the presence of a radical initiator and a surfactant in a polymerization medium containing essentially only carbon dioxide. The surfactant is a functional (per)fluoropolyether having recurring units (R1) and at least one functional group containing a heteroatom other than fluorine, the recurring units containing at least one ether linkage in the main chain and at least one fluorine atom. Molded article containing the polymer obtained from the process.

    摘要翻译: 在基本上仅含有二氧化碳的聚合介质中,在自由基引发剂和表面活性剂的存在下使至少一种氟化单体聚合来制造聚合物的方法。 表面活性剂是具有重复单元(R1)和至少一个含有除氟以外的杂原子的官能团的官能(全)氟聚醚,该重复单元在主链中含有至少一个醚键和至少一个氟原子。 含有从该方法获得的聚合物的模制品。

    Preparation of vinyl-containing macromers
    6.
    发明授权
    Preparation of vinyl-containing macromers 有权
    含乙烯基的大分子单体的制备

    公开(公告)号:US06555635B2

    公开(公告)日:2003-04-29

    申请号:US09992768

    申请日:2001-11-06

    申请人: Eric J. Markel

    发明人: Eric J. Markel

    IPC分类号: C08F464

    摘要: Polymeric compositions of matter are described comprising olefin polymer chains having Mn of about 400 to 75,000, a ratio of vinyl groups to total olefin groups according to the formula vinyl ⁢   ⁢ groups olefin ⁢   ⁢ groups ≥ [ comonomer ⁢   ⁢ mole ⁢   ⁢ percentage + 0.1 ] a × 10 a × b ( 1 ) where, a=−0.24 and b=0.8, and where the total number of vinyl groups per 1000 carbon atoms is greater than or equal to 8000÷Mn. The invention includes a method for preparing these polymeric products comprising contacting one or more olefin comonomers with a catalyst system containing a transition metal catalyst compound and an alumoxane wherein the aluminum to transition metal ratio is from 10:1 to less than or equal to 220:1 (Al:Me). The process conditions of the invention permit predictable macromer characteristics of both molecular weight and vinyl unsaturation.

    摘要翻译: 描述了物质的聚合物组合物,其包含具有约400至75,000的Mn的烯烃聚合物链,根据所述方法的乙烯基与总烯烃基的比例,a = -0.24和b = 0.8,并且其中每个乙烯基的总数 1000个碳原子大于或等于8000 \ Mn。 本发明包括一种制备这些聚合产物的方法,包括使一种或多种烯烃共聚单体与含有过渡金属催化剂化合物和铝氧烷的催化剂体系接触,其中铝与过渡金属之比为10:1至小于或等于220:1。 1(Al:Me)。 本发明的方法条件允许分子量和乙烯基不饱和度的可预测的大分子单体特征。

    Methods for forming amorphous ultra-high molecular weight polyalphaolefin drag reducing agents using non-metallocene catalysts and alkylaluminoxane
    8.
    发明授权
    Methods for forming amorphous ultra-high molecular weight polyalphaolefin drag reducing agents using non-metallocene catalysts and alkylaluminoxane 有权
    使用非金属茂催化剂和烷基铝氧烷形成无定形超高分子量聚α-烯烃减阻剂的方法

    公开(公告)号:US06242395B1

    公开(公告)日:2001-06-05

    申请号:US09396285

    申请日:1999-09-15

    IPC分类号: C10M14306

    摘要: A composition including polyalphaolefins that function as drag reducing agents and a process for the preparation of polyalphaolefins that function as drag reducing agents are disclosed. The process includes contacting alpha olefin monomers with a catalyst system, which includes a catalyst and an activator (co-catalyst) in a reactant mixture. The catalyst is a transition metal catalyst, preferably titanium trichloride, and the co-catalyst may include an alkylaluminoxane, alone or in combination, with a dialkylaluminum halide or a halohydrocarbon. The polymerization of the alpha olefin monomers produces a non-crystalline, ultra-high molecular weight polyalphaolefin having an inherent viscosity of at least 10 dL/g. The addition of the alkylaluminoxane during the polymerization process provides for a non-crystalline, ultra-high molecular weight polyalphaolefin and a more uniform molecular weight distribution of the resulting polyalphaolefin, thereby creating a drag reducing agent superior to known drag reducing agents. A process for forming a drag reducing agent comprising a non-crystalline, ultra-high molecular weight polyalphaolefin having an inherent viscosity of about at least 10 dL/g and a process for reducing drag in a conduit are also disclosed.

    摘要翻译: 公开了一种包含用作减阻剂的聚α-烯烃的组合物和用作制备用作减阻剂的聚α-烯烃的方法。 该方法包括使α-烯烃单体与催化剂体系接触,催化剂体系包括反应物混合物中的催化剂和活化剂(助催化剂)。 催化剂是过渡金属催化剂,优选三氯化钛,并且助催化剂可以单独或与二烷基卤化铝或卤代烃单独或组合地使用烷基铝氧烷。 α-烯烃单体的聚合产生具有至少10dL / g的特性粘度的非结晶超高分子量聚α-烯烃。 在聚合过程中加入烷基铝氧烷提供非结晶,超高分子量聚α-烯烃和所得聚α-烯烃的更均匀的分子量分布,从而产生优于已知减阻剂的减阻剂。 还公开了一种形成减阻剂的方法,其包含特性粘度为约10dL / g的非结晶,超高分子量聚α-烯烃和减少管道中的阻力的方法。