Low-temperature film-forming latex based on hydrophobic polymers having a core/shell structure without coalescents
    4.
    发明授权
    Low-temperature film-forming latex based on hydrophobic polymers having a core/shell structure without coalescents 失效
    基于疏水聚合物的低温成膜胶乳,其具有不具有聚结剂的核/壳结构

    公开(公告)号:US06723779B2

    公开(公告)日:2004-04-20

    申请号:US10134470

    申请日:2002-04-30

    IPC分类号: C08L5100

    摘要: A latex which forms a film by evaporation at a temperature of less than 40° C. is based on hydrophobic polymer particles having a core/shell structure. The particles consist of 70 to 90% by weight of at least one polymer with a soft character having a glass transition temperature of less than 20° C. forming the core, and 10 to 30% by weight of at least one polymer with a hard character having a glass transition temperature of greater than 50° C. forming the shell. When applied to any surface and after drying at low temperature, the latex, without the use of any coalescents or volatile organic compounds, provides a continuous film which is homogeneous, has no surface tack and has good mechanical integrity.

    摘要翻译: 通过在低于40℃的温度下蒸发形成膜的胶乳是基于具有核/壳结构的疏水性聚合物颗粒。 所述颗粒由70-90重量%的至少一种具有玻璃化转变温度低于20℃的柔软特性的聚合物形成芯,和10至30重量%的至少一种具有硬的聚合物 具有大于50℃的玻璃化转变温度的特征。 当应用于任何表面并且在低温下干燥后,胶乳不使用任何聚结剂或挥发性有机化合物,提供均匀的,没有表面粘性并且具有良好机械完整性的连续膜。

    Grafted ethylene polymers usable more especially as additives for
inhibiting the deposition of paraffins in crude oils and compositions
containing the oils and said additives
    9.
    发明授权
    Grafted ethylene polymers usable more especially as additives for inhibiting the deposition of paraffins in crude oils and compositions containing the oils and said additives 失效
    更优选的接枝乙烯聚合物可用作抑制原油中石蜡沉积的添加剂和含有油和所述添加剂的组合物

    公开(公告)号:US4608411A

    公开(公告)日:1986-08-26

    申请号:US790358

    申请日:1985-10-23

    CPC分类号: C08F255/02 C10L1/195

    摘要: The present invention provides grafted ethylene copolymers usable more especially as additives for inhibiting the depositions in crude oils.Said copolymer being formed of ethylene and at least one monomer with ethylenic unsaturation, chosen from vinyl esters of C.sub.2 to C.sub.18 monocarboxylic acids, the alkyl esters in the C.sub.1 to C.sub.12 range of unsaturated monocarboxylic acids from the C.sub.3 to C.sub.12 range and the .alpha., .beta.-unsaturated dicarboxylic compounds, on which are fixed the grafts of a homo or copolymer of an .alpha., .beta.-unsaturated monocarboxylic acid ester with at least one alkanol of a chain length equal to or greater than C.sub.12 and at least 20% of which is of a chain length equal to or greater than C.sub.22. Such copolymers may be used more especially as additives for inhibiting the deposition of paraffins and for improving the flow properties of the crude oils.

    摘要翻译: 本发明提供接枝乙烯共聚物,尤其可用作抑制原油沉积的添加剂。 所述共聚物由乙烯和至少一种具有烯属不饱和键的单体形成,选自C2至C18一元羧酸的乙烯基酯,C3至C12范围的不饱和单羧酸的C1至C12范围内的烷基酯和α,β - 不饱和二羧酸化合物,其上固定α,β-不饱和一元羧酸酯与链长等于或大于C 12的至少一种链烷醇的均聚物或共聚物的接枝物,并且其至少20%为 链长等于或大于C22。 更优选使用这种共聚物作为用于抑制石蜡沉积和用于改善原油的流动性质的添加剂。

    CROSSLINKED COMPOSITION COMPRISING A CORE/SHELL COPOLYMER, METHOD OF OBTAINING SAME AND USES THEREOF
    10.
    发明申请
    CROSSLINKED COMPOSITION COMPRISING A CORE/SHELL COPOLYMER, METHOD OF OBTAINING SAME AND USES THEREOF 审中-公开
    包含核心/壳共聚物的交联组合物,其获得方法及其用途

    公开(公告)号:US20090306246A1

    公开(公告)日:2009-12-10

    申请号:US12096237

    申请日:2006-12-01

    IPC分类号: C08L33/12

    摘要: The invention relates to is a crosslinked composition containing in parts by weight: 20 to 100 parts of at least one elastomer (I), 2 to 50 parts of at least one core/shell copolymer (II), and 0 to 100 parts of at least one thermoplastic polymer (III). The invention also relates to a method of producing one such crosslinked composition, which is characterized in that it consists in: mixing an elastomer and a core/shell copolymer optionally in the presence of: a grafted polyolefin, a plasticizer, fillers and/or additives, and a suitably-selected crosslinking system, and subsequently crosslinking said mixture at a suitable temperature. In a preferred embodiment of the invention, the mixture is crosslinked at a temperature of between 150 and 320° C. The invention method be carried out in an internal mixer, or, alternately, in a twin-screw extruder or a Buss®-type co-kneader. Depending on the case, the resulting mass is calendared or extruded, cooled and subsequently granulated. The granules thus obtained are then ready to be transformed, by means of heating, into sheets, plates, extrusions, tubes or other desired products. The invention further relates to the use of one such composition in the production of ducts, pipes, tubing, couplers or similar for conveying fluids, such as the fluid transfer conduits, pipes and other elements which are used in the automobile industry in braking, cooling, steering and air-conditioning systems. The inventive crosslinked composition can also be used in the production of belts, tires, electrical cable sheaths, and shoe soles.”

    摘要翻译: 本发明涉及一种交联组合物,其含有重量份:20-100份至少一种弹性体(I),2-50份至少一种核/壳共聚物(II)和0-100份 至少一种热塑性聚合物(III)。 本发明还涉及生产一种这样的交联组合物的方法,其特征在于它包括:将弹性体和核/壳共聚物任选地在以下存在下混合:接枝聚烯烃,增塑剂,填料和/或添加剂 和适当选择的交联体系,随后在合适的温度下交联所述混合物。 在本发明的一个优选实施方案中,该混合物在150-320℃的温度下交联。本发明方法在内部混合器中进行,或者在双螺杆挤出机或Buss(R) 型共捏合机。 根据情况,将所得物料压延或挤出,冷却并随后造粒。 然后将如此获得的颗粒通过加热转化成片,板,挤出物,管或其它所需产物。 本发明还涉及一种这样的组合物在制造用于输送流体的管道,管道,管道,耦合器或类似物中的用途,例如用于汽车工业中的流体输送导管,管道和其它元件,用于制动,冷却 ,转向和空调系统。 本发明的交联组合物也可用于生产带,轮胎,电缆护套和鞋底。“