Process for modifying natural rubber, and modified natural rubber
    42.
    发明授权
    Process for modifying natural rubber, and modified natural rubber 有权
    改性天然橡胶和改性天然橡胶的方法

    公开(公告)号:US08815978B2

    公开(公告)日:2014-08-26

    申请号:US12929788

    申请日:2011-02-16

    摘要: A process for modifying natural rubber and modified natural rubber with improved processing performance. The process for modifying natural rubber includes at least the following process steps: comminuting the natural rubber in a first process step; blending and purifying the natural rubber in a second process step; further comminuting the natural rubber in a third process step; and, drying the natural rubber in a fourth process step. The modified natural rubber is modified by at least four process steps.

    摘要翻译: 改进加工性能的天然橡胶和改性天然橡胶的改性方法。 改性天然橡胶的方法至少包括以下工艺步骤:在第一工艺步骤中粉碎天然橡胶; 在第二工艺步骤中混合和净化天然橡胶; 在第三步骤中进一步粉碎天然橡胶; 并在第四工序中干燥天然橡胶。 改性天然橡胶通过至少四个工艺步骤进行改性。

    Method of preparing thermoplastic resin having superior gloss, impact strength and whiteness
    43.
    发明申请
    Method of preparing thermoplastic resin having superior gloss, impact strength and whiteness 有权
    制备具有优异光泽度,冲击强度和白度的热塑性树脂的方法

    公开(公告)号:US20090118393A1

    公开(公告)日:2009-05-07

    申请号:US12290924

    申请日:2008-11-05

    IPC分类号: C08L9/10 C08C3/00 C08L51/04

    摘要: Disclosed is a method for preparing a thermoplastic resin with superior impact resistance, chemical resistance and processability as well as excellent gloss and whiteness. The method includes emulsion-polymerizing a conjugated diene compound monomer to prepare a rubber latex having an average particle diameter of 1,800 Å to 5,000 Å, a polymerization conversion ratio of at least 90% and a swelling index of 12 to 40, an average gel content of 70 to 95%, emulsion-polymerizing 45 to 75 parts by weight of the rubber latex with 17 to 40 parts by weight of an aromatic vinyl compound and 4 to 20 parts by weight of a vinyl cyanide compound to prepare a graft copolymer latex, and coagulating the graft copolymer latex with a coagulant at 60 to 80° C., and aging the graft copolymer latex at 80 to 99° C. to obtain a graft copolymer powder.

    摘要翻译: 公开了一种制备具有优异的耐冲击性,耐化学性和加工性以及优异的光泽和白度的热塑性树脂的方法。 该方法包括使共轭二烯化合物单体乳液聚合,制备平均粒径为1800至5000的聚合转化率至少为90%,溶胀指数为12至40的橡胶胶乳,平均凝胶含量 70〜95%,乳液聚合45〜75重量份的橡胶胶乳和17〜40重量份的芳香族乙烯基化合物和4〜20重量份的乙烯基氰化合物,制备接枝共聚物胶乳, 并在60至80℃下用凝结剂凝结接枝共聚物胶乳,并在80至99℃下老化接枝共聚物胶乳,得到接枝共聚物粉末。

    Process for manufacturing friable rubber bales
    44.
    发明授权
    Process for manufacturing friable rubber bales 失效
    制造易碎橡胶包的工艺

    公开(公告)号:US5559178A

    公开(公告)日:1996-09-24

    申请号:US182749

    申请日:1994-01-18

    申请人: Lincoln Widmer

    发明人: Lincoln Widmer

    摘要: A composition for coating wet rubber particles during extrusion and pelletization prior to drying comprising an inorganic partitioning agent, a thickener and binder reagent, water and a water soluble anionic dispersant, and the process for application to elastomers including those of low viscosity or high resin content to improve their processability during manufacture.

    摘要翻译: 用于在干燥之前的挤出和造粒期间涂覆湿橡胶颗粒的组合物,包括无机分配剂,增稠剂和粘合剂试剂,水和水溶性阴离子分散剂,以及用于包括低粘度或高树脂含量的弹性体的方法 以提高其制造过程中的加工性能。

    Method for removal of residual solvent from particulate crumb made by
solution polymerization
    45.
    发明授权
    Method for removal of residual solvent from particulate crumb made by solution polymerization 失效
    从溶液聚合制成的颗粒状碎屑中除去残余溶剂的方法

    公开(公告)号:US4575950A

    公开(公告)日:1986-03-18

    申请号:US549719

    申请日:1983-11-08

    申请人: John M. Miles

    发明人: John M. Miles

    IPC分类号: C08C3/00 C08F6/10 F26B3/06

    CPC分类号: C08C3/00 C08F6/10

    摘要: A method for removing residual solvent dissolved in non-sticky crumb particles produced by solution polymerization that have been treated substantially to remove solvent from the polymer surface. Particles are transferred into a closed storage zone under inert atmosphere conditions and are maintained for a period of time sufficient to allow diffusion of solvent from the particles as free solvent. Inert gas is then passed through the storage zone to remove the free solvent. The processes of allowing diffusion followed by purging of the free solvent is repeated as necessary.

    摘要翻译: 通过溶液聚合生产的溶解在非粘性碎屑颗粒中的残留溶剂的方法,该方法已经被基本上从聚合物表面除去溶剂。 将颗粒在惰性气氛条件下转移到封闭的储存区中,并保持足以允许溶剂从颗粒中扩散的时间段作为游离溶剂。 然后将惰性气体通过储存区以除去游离溶剂。 根据需要重复允许扩散随后吹扫游离溶剂的方法。

    Apparatus for eliminating residual solvent from crumbled polymer
    46.
    发明授权
    Apparatus for eliminating residual solvent from crumbled polymer 失效
    用于消除粉碎聚合物残留溶剂的设备

    公开(公告)号:US4236958A

    公开(公告)日:1980-12-02

    申请号:US37017

    申请日:1979-05-08

    摘要: The apparatus proposed herein relates to mass-exchange apparatus for isolating polymers from hydrocarbon solutions. The apparatus comprises a vertical column provided with a device for producing polymer crumb and an aqueous suspension, a device for feeding live steam, and contact trays which divide the column into compartments as for height. The device for producing polymer crumb and aqueous suspension is accommodated in the top portion of the vertical column and is essentially a chamber established on at least one side by the overflow baffle. The chamber accommodates the water supply nozzle and a conventional injector-type polymer crumb former. Such an arrangement of the device for polymer crumb formation and producing aqueous suspension results in a simplified construction of the entire apparatus and diminished overall dimensions thereof, as well as to a simpler attendance of the apparatus.

    摘要翻译: 本文提出的装置涉及用于从烃溶液中分离聚合物的质量交换装置。 该设备包括设置有用于生产聚合物碎屑的装置和水性悬浮液的垂直柱,用于进给活蒸汽的装置,以及将塔分隔成高度的隔室的接触盘。 用于生产聚合物碎屑和水性悬浮液的装置容纳在垂直塔的顶部中,并且基本上是通过溢流挡板在至少一个侧面上建立的室。 该室容纳供水喷嘴和常规的注射器型聚合物碎屑形成器。 用于聚合物碎屑形成和产生水性悬浮液的装置的这种布置导致整个装置的简化结构和其整体尺寸的减小以及装置的更简单的出席。

    Preparation of powdered rubbers
    47.
    发明授权
    Preparation of powdered rubbers 失效
    粉末状橡胶的制备

    公开(公告)号:US3953389A

    公开(公告)日:1976-04-27

    申请号:US581494

    申请日:1975-05-28

    摘要: Process for the preparation of a free-flowing powdered rubber by treating a rubber with an aqueous dispersion of an anti-tack agent and suspending the rubber in powdered form in a stream of gas (e.g. air), removing at least part of the water and subsequently treating the powdered rubber with a dusting material.

    摘要翻译: 通过用防粘剂的水分散体处理橡胶并将橡胶以粉末形式悬浮在气流(例如空气)中,除去至少一部分水,以及 随后用粉尘材料处理粉末状橡胶。

    Process for clarifying gums
    48.
    发明授权
    Process for clarifying gums 失效
    澄清工艺流程

    公开(公告)号:US3755494A

    公开(公告)日:1973-08-28

    申请号:US3755494D

    申请日:1971-04-02

    申请人: GEN FOODS CORP

    IPC分类号: A23G4/00 C08C3/00 C08C17/00

    CPC分类号: A23G4/00 Y10S528/931

    摘要: NATURAL GUMS AND NATURAL GUM BASES ARE PURIFIED OR CLARIFIED BY HEATING A SUSPENSION OF SAID GUMS IN GLYCEROL TO EFFECT SEPARATION OF THE GUM INTO ANUPPER LAYER AND SETTLING PRECIPITOUS MATTER INTO THE LOWER LAYER OF GLYCEROL, WHEREUPON THE HEATED ADMIXTURE IS CENTRIFUGED TO REMOVE THE GLYCEROL AND PRECIPITATED IMPURITIES CONCURRENTLY FROM THE CLARIFIED GUMS.