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    • 9. 发明授权
    • High-strength films of block copolymer latices
    • 高强度嵌段共聚物胶片
    • US5563204A
    • 1996-10-08
    • US469182
    • 1995-06-06
    • David R. SpethRonald R. PelletierBrian W. Walther
    • David R. SpethRonald R. PelletierBrian W. Walther
    • B29C41/00B29C71/02B29D7/01C08J3/03C08J5/18C08L53/02C08K5/01C08L53/00
    • C08J3/03B29C41/003B29D7/01C08J5/18C08L53/02C08L53/025B29C71/02B29K2009/06B29K2096/04B29K2105/0064C08J2353/02
    • 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.
    • 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%。
    • 10. 发明授权
    • High-strength films of block copolymer latices
    • 高强度嵌段共聚物胶片
    • US5578674A
    • 1996-11-26
    • US469184
    • 1995-06-05
    • David R. SpethBrian W. WaltherRonald R. Pelletier
    • David R. SpethBrian W. WaltherRonald R. Pelletier
    • B29C41/00B29C71/02B29D7/01C08J3/03C08J5/18C08L53/02B29D7/00C08K5/01C08L53/00
    • C08J5/18B29C41/003B29D7/01C08J3/03C08L53/02C08L53/025B29C71/02B29K2009/06B29K2096/04B29K2105/0064C08J2353/02
    • 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.
    • 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。