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：WO1996025292A1

公开(公告)日：1996-08-22

申请号：PCT/US1996001864

申请日：1996-02-14

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  KELCH, Robert, H. ,  STEVENS, Bradley, Day ,  FIERO, Terry, H.

IPC: B32B27/08

CPC classification number: B32B27/08 ,  B32B7/12 ,  B32B15/085 ,  B32B15/088 ,  B32B15/09 ,  B32B27/20 ,  B32B27/302 ,  B32B27/32 ,  B32B27/40 ,  B32B2038/0076 ,  B32B2307/584 ,  B32B2311/00 ,  B32B2323/04 ,  B32B2323/10 ,  B32B2325/00 ,  B32B2375/00

Abstract: The present invention provides a protective polymeric film which can be laminated to metal substrate (18) and which provides protection against scratches, solvents and corrosion. The film also exhibits good compressibility and sealability when used to form metal containers such as aerosol valve mounting cups, can domes, bodies, bottoms, and the like. The protective polymeric film includes a scratch-resistant layer (10) having a Shore D hardness of at least 60, an adhesive layer (14), and a compressible layer (12) positioned between the scratch-resistant and adhesive layers. In an alternative embodiment, the protective film includes a scratch-resistant layer and an adjacent compressible adhesive layer. The film may be laminated to a metal substrate by thermally activating the adhesive layer.

Abstract translation: 本发明提供了可以层压到金属基底（18）上的保护性聚合物膜，并提供防划伤，溶剂和腐蚀的保护。 当用于形成诸如气溶胶阀安装杯，罐穹顶，身体，底部等的金属容器时，该膜也表现出良好的压缩性和密封性。 保护性聚合物膜包括肖氏D硬度至少为60的耐刮擦层（10），粘合剂层（14）和位于耐刮擦层和粘合剂层之间的可压缩层（12）。 在替代实施例中，保护膜包括耐擦伤层和相邻的可压缩粘合剂层。 可以通过热活化粘合剂层将膜层压到金属基底上。

公开(公告)号：WO1996020821A1

公开(公告)日：1996-07-11

申请号：PCT/US1995016348

申请日：1995-12-14

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  JENKINS, Steven, R. ,  HYUN, Kun, S.

IPC: B29C47/60

CPC classification number: B29C47/6081 ,  B29C47/0021 ,  B29C47/60 ,  B29C47/6018 ,  B29C47/625

Abstract: An extruder screw (10) for use in a barrel of an extruder for forwarding thermoplastic polymer from a first end to a second end of the extruder. The extruder comprises a transition section (14) and at least one flight (20) extending substantially along the length of the screw (10). A dam (24) is positioned at the point where the rapid melting of the solids starts to slow down and the rate of solid bed width decrease approaches zero. The dam (24) provides the screw with a high output of extrudate and close control of the residence time of polymer particles as they are transported through the screw (10), resulting in an extrudate which is uniformly melted and which is substantially free of degradation products and/or entrapped air.

Abstract translation: 一种挤出机螺杆（10），用于挤出机筒中，用于将热塑性聚合物从挤出机的第一端转移到第二端。 挤出机包括过渡段（14）和基本上沿螺杆（10）的长度延伸的至少一个螺纹（20）。 大坝（24）位于固体的快速熔化开始减速并且固体床宽度减小的速率接近零的点。 大坝（24）为螺杆提供高输出的挤出物，并且密封控制聚合物颗粒在通过螺杆（10）输送时的停留时间，导致挤出物均匀熔化并且基本上没有降解 产品和/或夹带空气。

公开(公告)号：WO1996020232A1

公开(公告)日：1996-07-04

申请号：PCT/US1995016631

申请日：1995-12-19

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  AU, Andrew, T. ,  NAFZIGER, J., Lowell

IPC: C08G59/02

CPC classification number: C07B43/04 ,  C07B45/06 ,  C07C41/16 ,  C07C67/10 ,  C07C209/18 ,  C07C209/68 ,  C07C319/14 ,  C07D303/22 ,  C07D303/24 ,  C07D303/38 ,  C08G8/08 ,  C08G8/28 ,  C08G59/02 ,  C08G59/027 ,  C07C211/45 ,  C07C69/54 ,  C07C43/215 ,  C07C43/166

Abstract: A process to make an allyl ether, allyl thioether or allyl amine comprising the step of reacting an active-hydrogen-containing compound containing at least one hydroxyl, thiol, ester or amine group with a compound containing an allyl carboxylate group in the presence of a transition metal catalyst, a complexing agent and a base; characterized in that the quantity of base is at least 0.8 equivalents per equivalent of active-hydrogen-containing compound.

Abstract translation: 制备烯丙基醚，烯丙基硫醚或烯丙基胺的方法包括使含有至少一个羟基，硫醇，酯或胺基团的含活性氢化合物与含有烯丙基羧酸酯基团的化合物在存在下反应的步骤 过渡金属催化剂，络合剂和碱; 其特征在于碱的量为每当量含活性氢化合物至少0.8当量。

公开(公告)号：WO1996019280A1

公开(公告)日：1996-06-27

申请号：PCT/US1995015393

申请日：1995-11-28

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  ALLEN, M., C. ,  BEDELL, S., A.

IPC: B01D53/52

CPC classification number: B01D53/52

Abstract: A process for the removal of oxalate ion or control of the concentration thereof in aqueous solutions containing polyvalent metal chelates of organic acids is described, the process being characterized by precipitation of alkali metal oxalate.

Abstract translation: 描述了在含有有机酸的多价金属螯合物的水溶液中除去草酸根离子或控制其浓度的方法，该方法的特征在于沉淀碱金属草酸盐。

公开(公告)号：WO1996018663A1

公开(公告)日：1996-06-20

申请号：PCT/US1995014191

申请日：1995-11-02

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  PRIDDY, Duane, B. ,  DAIS, Virginia, A.

IPC: C08F12/04

CPC classification number: C08F12/04 ,  C08F2/38

Abstract: The present invention is a free radical bulk polymerization process for the preparation of high molecular weight polymers from vinyl aromatic monomers, characterized in that the polymerization is conducted in the presence of a vinyl acid containing either a sulfur or phosphorus atom within the acid functional group.

Abstract translation: 本发明是一种用于从乙烯基芳族单体制备高分子量聚合物的自由基本体聚合方法，其特征在于聚合是在酸官能团内含有硫或磷原子的乙烯基酸存在下进行的。

公开(公告)号：WO1996018660A1

公开(公告)日：1996-06-20

申请号：PCT/US1995016005

申请日：1995-12-11

Applicant: THE DOW CHEMICAL COMPANY ,  WILSON, David, R. ,  HAHN, Stephen, F.

Inventor： THE DOW CHEMICAL COMPANY

IPC: C08F08/04

CPC classification number: C08C19/02 ,  C08F8/04

Abstract: Organic compounds are hydrogenated in the presence of certain mono- or bis(pentadienyl) divalent Group IV metal complexes. These titanium complexes are effective hydrogenation catalysts for polymers containing ethylenic unsaturation. They further provide for selective hydrogenation of ethylenic unsaturation sites in the presence of aromatic groups.

Abstract translation: 有机化合物在某些单或双（戊二烯基）二价IV族金属络合物存在下氢化。 这些钛络合物是含有烯属不饱和键的聚合物的有效氢化催化剂。 它们进一步提供了在芳族基团存在下烯键式不饱和位点的选择性氢化。

公开(公告)号：WO1996017857A1

公开(公告)日：1996-06-13

申请号：PCT/US1995014189

申请日：1995-11-02

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  ROSEN, Robert, K. ,  KOLTHAMMER, Brian, W., S.

IPC: C07F17/00

CPC classification number: C07F17/00

Abstract: aitanium and zirconium complexes comprising a single, cyclic, delocalized pi -bonded ligand group wherein the metal of said complexes is in the +2 formal oxidation state are prepared in high yield and purity by reaction of titanium and zirconium halides in the +3 or +4 oxidation state with an n-alkyl Grignard reagent. The complexes are used as catalyst components for alpha -olefin polymerization catalysts.

Abstract translation: 包含单个，环状，离域的π键配体基团的钛和锆络合物，其中所述络合物的金属处于+2形式氧化态，通过钛和卤化锆在+3或+ 4氧化态与正烷基格氏试剂。 该络合物用作α-烯烃聚合催化剂的催化剂组分。

公开(公告)号：WO1996016922A1

公开(公告)日：1996-06-06

申请号：PCT/US1995014876

申请日：1995-11-15

Applicant: THE DOW CHEMICAL COMPANY ,  LUME-PEREIRA, Celio

Inventor： THE DOW CHEMICAL COMPANY

IPC: C07C17/354

CPC classification number: C07C17/354 ,  C07B35/02

Abstract: A halogenated compound (I) containing one or more >C=O, olefinic and/or aromatic >C=C C=O, olefinic and/or aromatic >C=C

Abstract translation: 含有一个或多个C = O，烯属和/或芳族C = C <基团的卤代化合物（I）被氢化以产生没有或降低的> C = O的含量的卤代化合物（II），烯属和 /或芳族C = C <基团。 在氢化过程中，包含一种或多种这些化合物（I）的液体进料流在富含催化剂存在下与富氢气流和包含这些化合物（II）中的一种或多种的液体循环流接触。

公开(公告)号：WO1996016122A1

公开(公告)日：1996-05-30

申请号：PCT/US1995012873

申请日：1995-10-18

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  ESNEAULT, Calvin, P. ,  UZEE, Andre, J. ,  CALLAGHAN, Thomas, A.

IPC: C08L53/02

CPC classification number: C08J5/18 ,  C08J2325/08 ,  C08J2353/02 ,  C08L53/02 ,  D01F6/46 ,  D01F6/56 ,  D04H1/42 ,  C08L2666/04

Abstract: The invention is a composition useful in preparing elastomeric articles which comprises: (a) from 70 to 95 parts by weight of one or more monovinylidene aromatic monomer conjugated diene block copolymer(s) and (b) from 5 to 30 parts by weight of a thermoplastic polymer comprising one or more of: i) a copolymer comprising a monovinylidene aromatic monomer and an anhydride; ii) polystyrene; iii) polyethylene; iv) an ethylene vinyl acetate copolymer, or a mixture thereof. At least 40 percent by weight of the block copolymers have the conjugated diene block comprised of isoprene. The weight percent of monovinylidene aromatic monomer in the block copolymer is from 10 to 35 percent by weight and the total block copolymer composition contains no more than 4 percent by weight of a diblock. The total parts of block copolymer and thermoplastic polymer is 100 parts. Films prepared from the composition exhibit a creep compliance of 1.5 MPa or less, a retention of 60 percent or greater as measured according to ASTM-D2991 at 30 minutes, and a permanent deformation of 10 percent or less as measured according to ASTM-D4649. In another embodiment, the invention comprises elastomeric articles comprising the composition of the invention.

Abstract translation: 本发明是一种可用于制备弹性体制品的组合物，其包括：（a）70至95重量份的一种或多种单亚乙烯基芳族单体共轭二烯嵌段共聚物和（b）5至30重量份的 包含以下一种或多种的热塑性聚合物：i）包含单亚乙烯基芳族单体和酸酐的共聚物; ii）聚苯乙烯; iii）聚乙烯; iv）乙烯乙酸乙烯酯共聚物或其混合物。 至少40重量％的嵌段共聚物具有由异戊二烯组成的共轭二烯嵌段。 嵌段共聚物中单亚乙烯基芳族单体的重量百分数为10至35重量％，并且总嵌段共聚物组合物含有不超过4重量％的二嵌段。 嵌段共聚物和热塑性聚合物的总份数为100份。 由组合物制备的薄膜在30分钟时显示出1.5MPa -1以下的蠕变柔量，根据ASTM-D2991测定的保持率为60％以上，永久变形为10％以下，根据 ASTM-D4649。 在另一个实施方案中，本发明包括包含本发明组合物的弹性制品。