High-strength films of block copolymer latices
    1.
    发明授权
    High-strength films of block copolymer latices 失效
    高强度嵌段共聚物胶片

    公开(公告)号:US5563204A

    公开(公告)日:1996-10-08

    申请号:US469182

    申请日:1995-06-06

    摘要: An aqueous dispersion is claimed which is capable of forming a free-standing, coherent, elastomeric, solid film which, after drying and annealing at 80.degree. C. for 30 minutes, demonstrates a tensile strength of about 11.0 MPa or greater wherein the dispersion comprises: I. an organic phase comprising: (a) one or more block copolymer(s) corresponding to the formula A-B-X.sub.m -(B-A).sub.n, wherein each A polymer block consists essentially of a monovinylidene aromatic monomer, having a weight average molecular weight from about 8,000 to about 15,000 Daltons, each B polymer block consists essentially of a conjugated diene and, optionally, a monovinylidene aromatic monomer having a weight average molecular weight from about 30,000 to about 200,000 Daltons, X is the remnant of a multifunctional coupling agent, m is 0 or 1, and n is an integer from 1 to 5, and (b) optionally, an extender for the block copolymer which is compatible with the B block; II. a surfactant; and III. water, wherein the A block effective phase volume in the organic phase is from about 5 to about 20 percent.

    摘要翻译: 要求保护的水分散体,其能够形成独立的,粘连的,弹性体的固体膜,其在80℃下干燥和退火30分钟后,表现出约11.0MPa或更大的拉伸强度,其中分散体包含 :I.有机相,其包含:(a)对应于式AB-Xm-(BA)n的一种或多种嵌段共聚物,其中每个A聚合物嵌段基本上由单亚乙烯基芳族单体组成,其具有重均分子量 每个B聚合物嵌段基本上由共轭二烯和任选的重均分子量为约30,000至约200,000道尔顿的单亚乙烯基芳族单体组成,X是多官能偶联剂的残余物 ,m为0或1,n为1至5的整数,(b)任选地,与B嵌段相容的嵌段共聚物的增量剂; 二, 表面活性剂; 和III。 水,其中有机相中A嵌段有效相体积为约5至约20%。

    High-strength films of block copolymer latices
    2.
    发明授权
    High-strength films of block copolymer latices 失效
    高强度嵌段共聚物胶片

    公开(公告)号:US5578674A

    公开(公告)日:1996-11-26

    申请号:US469184

    申请日:1995-06-05

    摘要: What is claimed is a coherent, elastomeric, solid, free-standing film comprising an organic phase comprising: (a) one or more block copolymer(s) corresponding to the formula:A--B--X.sub.m --(B--A).sub.nwherein each A is a polymer block consisting essentially of a monovinylidene aromatic monomer, each B is a polymer block consisting essentially of a conjugated diene and, optionally, a monovinylidene aromatic monomer, X is the remnant of a multifunctional coupling agent, m is 0 or 1, and n is an integer from 1 to 5, each monovinylidene aromatic monomer block having a weight average molecular weight from about 8,000 to about 15,000 Daltons, each conjugated diene block having a weight average molecular weight from about 30,000 to about 200,000 Daltons, and (b) optionally, an extender which is compatible with the B block; wherein the A block comprises 5 to 25 percent by weight of the organic phase and exhibits an effective phase volume in the organic phase from about 5 to about 20 percent and the amount of extender present is sufficient to achieve the desired effective phase volume of the A block, wherein the film is annealed and demonstrates a tensile strength of 11.0 MPa or greater.

    摘要翻译: 所要求保护的是一种包含有机相的相干,弹性体,固体,自立膜,其包含:(a)一个或多个相应于下式的嵌段共聚物:AB-Xm-(BA)n,其中每个A是聚合物 基本上由单亚乙烯基芳族单体组成的嵌段,每个B是基本上由共轭二烯和任选的单亚乙烯基芳族单体组成的聚合物嵌段,X是多官能偶联剂的残余物,m是0或1,n是 1至5的整数,每个单亚乙烯基芳族单体嵌段具有约8,000至约15,000道尔顿的重均分子量,每个共轭二烯嵌段的重均分子量为约30,000至约200,000道尔顿,和(b)任选地, 与B块兼容的扩展器; 其中A嵌段占有机相的5〜25重量%,有机相的有效相体积约为5〜20%,而且存在的增量剂的量足以达到所需有效相体积的A 块,其中所述膜退火并显示出11.0MPa或更大的拉伸强度。

    Tapered block copolymers
    3.
    发明授权
    Tapered block copolymers 失效
    锥形嵌段共聚物

    公开(公告)号:US5234999A

    公开(公告)日:1993-08-10

    申请号:US800342

    申请日:1991-11-26

    IPC分类号: C08L95/00

    CPC分类号: C08L95/00

    摘要: Disclosed are bituminous blends having improved toughness and elasticity. The blends contain a bituminous binder and a tapered block copolymer formed from a monovinyl aromatic compound and a conjugated diene. Suitable tapered block copolymers include a tapered A-B-A type block copolymer of the A-t-B-t-A configuration, particularly those having an isolated monovinyl aromatic compound content of about 20 to about 90 weight percent, and tapered A-B-A type block copolymers of the A-B-t-A configuration having an isolated monovinyl aromatic compound content of about 20 to about 90 weight percent of the total monovinyl aromatic compound in the tapered block copolymer. Further disclosed is a method of making the blends. Further disclosed is a tapered A-B-A type block copolymer having an isolated monovinyl aromatic compound content of about 29 to about 75 weight percent.

    摘要翻译: 公开了具有改进的韧性和弹性的沥青混合物。 共混物含有沥青粘合剂和由单乙烯基芳族化合物和共轭二烯形成的渐缩嵌段共聚物。 合适的锥形嵌段共聚物包括AtBtA构型的锥形ABA型嵌段共聚物,特别是具有约20至约90重量%的单一乙烯基芳族化合物含量的渐缩ABA型嵌段共聚物和具有分离的单乙烯基芳族化合物的ABtA构型的锥形ABA型嵌段共聚物 含量为锥形嵌段共聚物中总单乙烯基芳族化合物的约20至约90重量%。 进一步公开了制备共混物的方法。 进一步公开了具有约29-约75重量%的分离的单乙烯基芳族化合物含量的锥形A-B-A型嵌段共聚物。

    Preparation of a novel article from a thermally gellable artificial latex
    4.
    发明授权
    Preparation of a novel article from a thermally gellable artificial latex 失效
    从可热凝胶化人造胶乳制备新型制品

    公开(公告)号:US5500469A

    公开(公告)日:1996-03-19

    申请号:US310822

    申请日:1994-09-22

    IPC分类号: C08K5/41 C08L81/08

    CPC分类号: C08K5/41 Y10S128/918

    摘要: An artificial latex comprising a stable aqueous colloidal dispersion of a preformed multiblock copolymer prepared using a sulfate of an ethoxylated phenol as a dispersing and stabilizing agent is described. This composition is particularly suitable for preparing articles such as gloves or condoms that are free of vulcanizing agents and proteins.

    摘要翻译: 描述了包含使用乙氧基化苯酚的硫酸盐作为分散和稳定剂制备的预制的多嵌段共聚物的稳定的水性胶体分散体的人造胶乳。 该组合物特别适用于制备不含硫化剂和蛋白质的手套或避孕套等制品。

    Latex coatings for electrographic sheets
    6.
    发明授权
    Latex coatings for electrographic sheets 失效
    电印片用胶乳涂料

    公开(公告)号:US4061833A

    公开(公告)日:1977-12-06

    申请号:US646806

    申请日:1976-01-06

    摘要: An aqueous latex coating composition comprising a non-conductive, water-insoluble copolymer of (1) methacrylic acid or maleic acid, (2) a styrene compound, and (3) a conjugated diene hydrocarbon or an alkyl ester of methacrylic acid or of acrylic acid is coated onto a sheet which is conductive or is non-conductive but may have a conductive layer adhered thereto. Thereby, sheets having a dielectric coating for electrographic printing are produced.

    摘要翻译: 一种水性胶乳涂料组合物,其包含(1)甲基丙烯酸或马来酸,(2)苯乙烯化合物和(3)共轭二烯烃或甲基丙烯酸或丙烯酸的烷基酯的不导电的水不溶性共聚物 酸被涂覆在导电或不导电的片上,但可以具有粘附到其上的导电层。 由此,制造具有电印技术的电介质涂层的片材。

    Process for preparing high internal phase ratio emulsions and latexes
derived thereof
    9.
    发明授权
    Process for preparing high internal phase ratio emulsions and latexes derived thereof 失效
    制备高内相比乳液和衍生自其的胶乳的方法

    公开(公告)号:US5539021A

    公开(公告)日:1996-07-23

    申请号:US463151

    申请日:1995-06-05

    摘要: The present invention is a method of preparing a high internal phase ratio emulsion without phase inversion comprising the steps of:a) continuously merging into a disperser and in the presence of an emulsifying and a stabilizing amount of a surfactant, a continuous phase liquid stream having a flow rate R.sub.1, and a disperse phase liquid stream having a flow rate R.sub.2 ; andb) mixing the merged streams with a sufficient amount of shear, and with R.sub.2 :R.sub.1 sufficiently constant, to form the high internal phase ratio emulsion without phase inversion or stepwise distribution of an internal phase into an external phase;wherein R.sub.2 :R.sub.1 encompasses a range, the lower limit of which range being defined by a point where the volume average particle size of the high internal phase ratio emulsion begins to show an inverse dependence on R.sub.2 :R.sub.1, and wherein the upper limit of which range is just less than an R.sub.2 :R.sub.1 where a phase inversion of the high internal phase ratio emulsion takes place.Monodisperse submicron particles can be prepared using the process of the present invention. Useful latexes can be prepared from these high internal phase ratio emulsions.

    摘要翻译: 本发明是一种制备不含相转化的高内相比乳液的方法,包括以下步骤:a)连续合并到分散器中,并在乳化剂和稳定剂量的表面活性剂存在下,连续相液体流具有 流量R1和具有流量R2的分散相液体流; 和b)将合并的流与足够量的剪切混合,并使R2:R1充分恒定,以形成高内相比乳液,而不会内相逐步分配到外相中; 其中R2:R1包含一个范围,其下限限定在高内相比乳液的体积平均粒径开始显示与R2:R1的反相关性的点,其中其上限 范围小于R2:R1,其中发生高内相比乳液的相转化。 可以使用本发明的方法制备单分散亚微米颗粒。 可以从这些高内相比乳液制备有用的胶乳。