Polycarbonate isolation through homogenization devolatization
    1.
    发明授权
    Polycarbonate isolation through homogenization devolatization 失效
    聚碳酸酯分离通过均质脱挥发

    公开(公告)号:US06214892B1

    公开(公告)日:2001-04-10

    申请号:US09470735

    申请日:1999-12-23

    IPC分类号: C08J1104

    CPC分类号: C08G63/89 C08G64/403

    摘要: This invention relates to a method of recovering a polymer from an organic mixture comprising polymer and an organic solvent, the method comprising: a) admixing an aqueous solution and the organic mixture by the application of a combined mechanical and hydraulic shear force, the combined mechanical and shear force being sufficient to form a liquid-liquid dispersion; b) removing the organic solvent from the liquid-liquid dispersion thereby forming a remaining solution; and c) separating the polymer from the remaining solution. In one embodiment the polymer is a polycarbonate prepared by the interfacial method, and the organic solvent is methylene chloride.

    摘要翻译: 本发明涉及从包含聚合物和有机溶剂的有机混合物中回收聚合物的方法,该方法包括:a)通过应用组合的机械和液压剪切力混合水溶液和有机混合物,组合机械 剪切力足以形成液 - 液分散体; b)从液 - 液分散液中除去有机溶剂,从而形成剩余溶液; 和c)将聚合物与剩余溶液分离。在一个实施方案中,聚合物是通过界面方法制备的聚碳酸酯,有机溶剂是二氯甲烷。

    Adhesive containing block copolymers
    5.
    发明申请
    Adhesive containing block copolymers 审中-公开
    含粘合剂的嵌段共聚物

    公开(公告)号:US20070117934A1

    公开(公告)日:2007-05-24

    申请号:US11284102

    申请日:2005-11-21

    IPC分类号: C08F297/02

    摘要: Hot melt adhesive compositions containing a polystyrene-polyisoprene/polybutadiene-polystyrene block copolymer and its use in the manufacture of disposable absorbent articles. The adhesive comprises a thermoplastic polystyrene-polyisoprene/polybutadiene-polystyrene block copolymer having a styrene content of at least 25 wt % and a diblock percentage of less than 30%, a second thermoplastic block copolymer and a tackifier.

    摘要翻译: 含有聚苯乙烯 - 聚异戊二烯/聚丁二烯 - 聚苯乙烯嵌段共聚物的热熔粘合剂组合物及其在制造一次性吸收制品中的用途。 粘合剂包括苯乙烯含量为至少25重量%,二嵌段百分比小于30%的热塑性聚苯乙烯 - 聚异戊二烯/聚丁二烯 - 聚苯乙烯嵌段共聚物,第二热塑性嵌段共聚物和增粘剂。

    Hair Fixative Compositions
    6.
    发明申请
    Hair Fixative Compositions 审中-公开
    头发固定剂

    公开(公告)号:US20140219927A1

    公开(公告)日:2014-08-07

    申请号:US14343239

    申请日:2012-09-04

    IPC分类号: A61K8/87 A61Q5/06 A61K8/81

    摘要: A hair fixative composition includes a hair fixative polymer and a solvent system where the solvent system includes ethanol and another non-aqueous solvent in a weight ratio in a range of about 80:20 to about 20:80 of ethanol to the other non-aqueous solvent, and optionally a propellant.

    摘要翻译: 头发固定剂组合物包括固定剂聚合物和溶剂体系,其中溶剂体系包括乙醇和另一种非水溶剂,其重量比在约80:20至约20:80的乙醇与另一种非水溶剂 溶剂和任选的推进剂。

    HOT MELT ADHESIVES CONTAINING STYRENE BUTADIENE BLOCK COPOLYMER
    9.
    发明申请
    HOT MELT ADHESIVES CONTAINING STYRENE BUTADIENE BLOCK COPOLYMER 有权
    含有苯乙烯丁二烯嵌段共聚物的热熔胶

    公开(公告)号:US20100210163A1

    公开(公告)日:2010-08-19

    申请号:US12705742

    申请日:2010-02-15

    摘要: Hot melt adhesive compositions containing hyper-branched SBS block copolymers and end use applications thereof. The hyper-branched SBS is characterized in having a ratio between light-scattering molecular weight (of non-di-block polymer) and GPC molecular weight (of non-di-block polymer) greater than 1.4 and having ratio between light scattering molecular weight molecular weight (of non-di-block polymer) and light scattering molecular weight molecular weight (of di-block polymer) greater than 5. The ratio between light scattering molecular weight MW (of non-di-block polymer) and light scattering molecular weight MW (of di-block polymer) also defines the number of arms for the hyper branched structure. The weight average molecular weight of each arm of the hyper-branched SBS block copolymer is less than about 100,000. These are multipurpose adhesives finding utility as packaging, labeling, construction and positioning adhesives, and are particularly well suited for use as elastic attachment adhesives in the manufacture of elastic-containing products, such as disposable absorbent elastic articles.

    摘要翻译: 含有超支化SBS嵌段共聚物的热熔粘合剂组合物及其最终用途。 超支化SBS的特征在于具有大于1.4的非散射分子量(非二嵌段聚合物)和GPC分子量之间的比例,并且具有光散射分子量 分子量(非二嵌段聚合物)和光散射分子量分子量(二嵌段聚合物)大于5.光散射分子量MW(非二嵌段聚合物)与光散射分子 重量MW(二嵌段聚合物)也定义了超支化结构的臂数。 超支化SBS嵌段共聚物的各臂的重均分子量小于约100,000。 这些是多用途粘合剂,其用作包装,标签,结构和定位粘合剂,并且特别适合用作弹性粘合剂用于制造含弹性的产品,例如一次性吸收性弹性制品。

    Low application temperature hot melt adhesive
    10.
    发明申请
    Low application temperature hot melt adhesive 有权
    低应用温度热熔胶

    公开(公告)号:US20070173153A1

    公开(公告)日:2007-07-26

    申请号:US11716954

    申请日:2007-03-12

    IPC分类号: C08L91/06 B32B5/02

    摘要: A low application temperature rubber-based hot melt adhesive having properties particularly well suited for use in the construction of disposable articles has been invented. The adhesive comprises a styrene block copolymer and a type of wax in an amount effective to produce a viscosity at 120° C. of below about 10,000 centipoises, a cube flow at 130° F. (54° C.) of less than about 300%, a DSC crystallization temperature of less than about 75° C. and a storage modulus of less than about 1.0×107 dynes/cm2 at 10 rads/sec (25° C.).

    摘要翻译: 已经发明了一种具有特别适用于一次性制品结构的性能的低使用温度的橡胶基热熔粘合剂。 粘合剂包括苯乙烯嵌段共聚物和一种蜡,其量有效地在120℃下产生低于约10,000厘泊的粘度,在130°F(54℃)下的立方体流小于约300 %,DSC结晶温度小于约75℃,储能模量小于约1.0×10 6达因/ cm 2,10rad / sec(25 C。)。