公开(公告)号：WO1995014727A1

公开(公告)日：1995-06-01

申请号：PCT/US1994013481

申请日：1994-11-21

Applicant: THE DOW CHEMICAL COMPANY ,  EXXON CHEMICAL PATENTS, INC.

Inventor： THE DOW CHEMICAL COMPANY ,  EXXON CHEMICAL PATENTS, INC. ,  TANCREDE, Jean, M. ,  DIEHL, Charles, F. ,  MARCHAND, Gary, R.

IPC: C08G81/02

CPC classification number: C08G81/022 ,  A61F13/58 ,  A61L15/58 ,  B32B7/12 ,  C08F297/046 ,  C08L2666/02 ,  C09J153/02 ,  Y10T428/31855 ,  Y10T428/3188 ,  Y10T428/31895 ,  Y10T442/2754 ,  C08L53/02

Abstract: The invention is drawn to radial block copolymers of the formula: (pS-pI-pBnX), wherein pS is polystyrene, pI is polyisoprene, pB is polybutadiene, X is the residue of a multifunctional coupling agent used in the production of the radial block copolymer, and n is a number greater than or equal to 3 representative of the number of branches appended to X; pressure sensitive adhesive compositions comprising such radial block copolymers and articles of manufacture produced therefrom. The pS component of the radial block copolymers of this invention comprise from about 14 to about 24 parts per 100 parts by weight of the radial block copolymer; the molecular weight (as polystyrene equivalent) of the radial block copolymer is between about 200,000 to about 400,000; and the weight amount of polybutadiene in the pI-pB segment is less than 50 weight percent.

Abstract translation: 本发明涉及式（pS-pI-pBnX）的径向嵌段共聚物，其中pS是聚苯乙烯，pI是聚异戊二烯，pB是聚丁二烯，X是用于制造径向块的多官能偶联剂的残基 共聚物，n为大于或等于3的数，代表附加到X的分枝数; 包含这种径向嵌段共聚物的压敏粘合剂组合物和由其制备的制品。 本发明的径向嵌段共聚物的pS组分包含约14至约24份/ 100份重量的径向嵌段共聚物; 径向嵌段共聚物的分子量（以聚苯乙烯当量计）为约200,000至约400,000; 并且pI-pB片段中的聚丁二烯的重量量小于50重量％。

公开(公告)号：WO1992020725A1

公开(公告)日：1992-11-26

申请号：PCT/US1992004334

申请日：1992-05-22

Applicant: THE DOW CHEMICAL COMPANY ,  EXXON CHEMICAL PATENTS INC.

Inventor： THE DOW CHEMICAL COMPANY ,  EXXON CHEMICAL PATENTS INC. ,  DIEHL, Charles, F. ,  MARCHAND, Gary, R. ,  MYERS, Michael, O. ,  TANCREDE, Jean, M.

IPC: C08F297/04

CPC classification number: A61L15/58 ,  A61F13/58 ,  B32B7/12 ,  C08F297/046 ,  C08L2666/02 ,  C09J153/02 ,  Y10T428/24826 ,  Y10T428/31855 ,  Y10T428/31924 ,  Y10T442/678 ,  C08L53/02

Abstract: Radial block copolymers characterized by the formulae: (1) (pS-pI)nX and (2) (pS-pI-pB)nX where pS is polystyrene, pI is polyisoprene, pB is butadiene, X is a residue of a multifunctional coupling agent used in the production of the radial block copolymer, and n is a number greater than 2 representative of the number of branches appended to X; hot-melt adhesive compositions constituted of said radial block copolymers, and articles of manufacture produced therefrom. These compolymers possess blocks of high average molecular weight polystyrene (10,000 to 25,000) and an overall average molecular weight (90,000 to 380,000) such that when blended in requisite proportions with a compatible tackifier resin, preferably also a secondary tackifying resin or plasticizing oil, and stabilizer, superior hot-melt adhesive compositions can be formed. The hot-melt adhesive compositions possess, inter alia, superior heat resistance, superior static time to failure with low viscosity, good peel adhesion, good tack, and high ability to bond to a polyethylene or polypropylene substrate at temperatures below that which may damage the substrate.

Abstract translation: 其特征在于式（1）（pS-pI）nX和（2）（pS-pI-pB）nX的径向嵌段共聚物，其中pS是聚苯乙烯，pI是聚异戊二烯，pB是丁二烯，X是多官能偶联 用于生产径向嵌段共聚物的试剂，n为大于2的数字，代表附着于X的分枝数; 由所述径向嵌段共聚物构成的热熔粘合剂组合物和由其制备的制品。 这些共聚物具有高平均分子量聚苯乙烯（10,000至25,000）和总平均分子量（90,000至380,000）的嵌段，使得当以相容的比例与相容性增粘树脂（优选也可以是二次增粘树脂或增塑油）共混时， 可以形成优良的热熔粘合剂组合物。 热熔性粘合剂组合物具有优异的耐热性，优异的静态时间与低粘度的破坏，良好的剥离粘合性，良好的粘性，以及在低于可能损坏聚乙烯或聚丙烯基材的温度下结合到聚乙烯或聚丙烯基材上的高能力 基质。

公开(公告)号：WO1996015189A1

公开(公告)日：1996-05-23

申请号：PCT/US1995013283

申请日：1995-10-10

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  WALTHER, Brian, W. ,  MARCHAND, Gary, R.

IPC: C08L53/02

CPC classification number: C08J5/18 ,  C08J3/07 ,  C08J2353/02 ,  C08L53/02

Abstract: Aqueous dispersions, and films prepared therefrom, comprising an organic phase of block copolymers and optional extenders wherein the block copolymers corresponds to the formula: A-B-Xm-(B-A)n wherein each A is a polymer block of a monovinylidene aromatic monomer and conjugated dienes, each B is a polymer block of one or more conjugated dienes and, optionally, one or more monovinylidene aromatic monomers, X is the remnant of a multifunctional coupling agent, m is 0 or 1, and n is an integer from 1 to 5. Each A polymer block has a weight average molecular weight from 4,000 to 15,000 Daltons. Each B polymer block has a weight average molecular weight from 20,000 to 200,000 Daltons. The total monovinylidene monomer content is from 6 to 30 percent by weight of the organic phase. The effective phase volume of the A polymer block in the organic phase is from 8 to 20 percent. Thin elastomeric articles prepared from the emulsions have improved tensile strength properties. Also claimed is a process for the preparation of such films.

Abstract translation: 水分散体和由其制备的膜包含嵌段共聚物和任选的增量剂的有机相，其中嵌段共聚物对应于下式：AB-Xm-（BA）n，其中每个A是单亚乙烯基芳族单体和共轭二烯的聚合物嵌段 每个B是一种或多种共轭二烯和任选的一种或多种单亚乙烯基芳族单体的聚合物嵌段，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A聚合物嵌段的重均分子量为4,000至15,000道尔顿。 每个B聚合物嵌段具有20,000至200,000道尔顿的重均分子量。 总亚乙烯基单体含量为有机相重量的6至30％。 有机相中的A聚合物嵌段的有效相体积为8〜20％。 由乳液制备的薄弹性制品具有改善的拉伸强度性能。 还要求的是制备这种膜的方法。

公开(公告)号：WO1996025442A1

公开(公告)日：1996-08-22

申请号：PCT/US1996001852

申请日：1996-02-12

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  WOODSON, Gary, E. ,  ESNEAULT, Calvin, P. ,  MYERS, Michael, O. ,  MARCHAND, Gary, R.

IPC: C08F297/04

CPC classification number: C08F297/04

Abstract: The invention is a process for the preparation of tapered block copolymers according to one of the formulae: B-t-A or A-B-t-A, wherein A comprises a polymer block derived from one or more monovinylidene aromatic monomers, B comprises a polymer block derived from one or more conjugated dienes, and t is a tapered polymer block derived from one or more monovinylidene aromatic monomers and one or more conjugated dienes wherein the portion of the block closest to block A is rich in monovinylidene aromatic monomer units, the portion of the block closest to block B is rich in conjugated diene units and the relative amount of conjugates diene and monovinylidene aromatic monomer units gradually changes along the backbone of the tapered block, comprising: a) contacting one or more conjugated dienes with a monofunctional lithium alkyl initiator or a polymer block derived from monovinylidene aromatic monomers with a terminal living lithium anion capable of initiating anionic polymerization and a hydrocarbon solvent, in a closed reactor equipped with a reflux condenser under conditions of reflux; b) partially polymerizing the one or more conjugated dienes; and c) after step b), contacting with the reaction mixture one or more monovinylidene aromatic monomers under conditions such that the unreacted conjugated diene and monovinylidene monomers polymerize; wherein the materials condensed during the process are recycled to the reactor.

Abstract translation: 本发明是一种制备根据下式之一的锥形嵌段共聚物的方法：BtA或ABtA，其中A包含衍生自一种或多种单亚乙烯基芳族单体的聚合物嵌段，B包含衍生自一种或多种共轭二烯 ，t是衍生自一种或多种单亚乙烯基芳族单体和一种或多种共轭二烯的渐缩聚合物嵌段，其中最接近嵌段A的嵌段的部分富含单亚乙烯基芳族单体单元，最接近嵌段B的嵌段的部分为 富含共轭二烯单元和共轭二烯和单亚乙烯基芳族单体单元的相对量沿着锥形嵌段的主链逐渐变化，包括：a）使一种或多种共轭二烯与单官能的烷基锂引发剂或衍生自单亚乙烯基的聚合物嵌段 具有末端活性的锂离子能引发阴离子聚合的芳族单体和 在回流条件下装备有回流冷凝器的封闭反应器中; b）部分聚合所述一种或多种共轭二烯; 和c）在步骤b）之后，使反应混合物与一种或多种单亚乙烯基芳族单体在未反应的共轭二烯和单亚乙烯基单体聚合的条件下接触; 其中在该过程中冷凝的材料被再循环到反应器中。

公开(公告)号：WO1996039451A1

公开(公告)日：1996-12-12

申请号：PCT/US1996006280

申请日：1996-05-03

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  SOTO, Jorge ,  MARCHAND, Gary, R. ,  STEVENS, James, C. ,  CRAWFORD, Lenore, H.

IPC: C08F290/04

CPC classification number: C08F290/04

Abstract: This invention relates to segmented, multicomponent interpolymers comprising: A) at least one olefin polymer segment comprising a substantially linear ethylene homopolymer or a substantially linear or branched copolymer of ethylene and at least one comonomer selected from the group consisting of C3-20 alpha -olefins, and B) at least one monovinylidene aromatic polymer segment, said olefin polymer segment and monovinylidene aromatic polymer segment being joined by means of the copolymerization of the terminal vinyl functionality of a macromonomer comprising the monovinylidene aromatic polymer segment with ethylene or a mixture of ethylene and said at least one comonomer under Ziegler-Natta polymerization conditions.

Abstract translation: 本发明涉及分段的多组分互聚物，其包含：A）至少一种烯烃聚合物链段，其包含基本上线性的乙烯均聚物或乙烯和至少一种共聚单体的基本上线性或支化的共聚物，所述共聚单体选自C3-20α-烯烃 和B）至少一个单亚乙烯基芳族聚合物链段，所述烯烃聚合物链段和单亚乙烯基芳族聚合物链段通过包含单亚乙烯基芳族聚合物链段的大分子单体的末端乙烯基官能团与乙烯或乙烯和 在齐格勒 - 纳塔聚合条件下表示至少一种共聚单体。