公开(公告)号：WO1996016095A1

公开(公告)日：1996-05-30

申请号：PCT/US1995008840

申请日：1995-07-14

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  PATTON, Jasson, T. ,  NEITHAMER, David, R.

IPC: C08F110/02

CPC classification number: C08F110/02 ,  C08F4/54

Abstract: Ethylene is homopolymerized in the presence of a catalyst consisting essentially of a Group 3 metal complex, preferably a scandium complex, having a bridged ligand structure. Optionally polymer blends are prepared by combining the process with another polymerization process, either in series or in parallel.

Abstract translation: 乙烯在基本上由具有桥连配体结构的第3族金属络合物，优选钪络合物组成的催化剂存在下均聚。 任选地，聚合物共混物通过将该方法与另一种串联或并联的聚合方法组合来制备。

公开(公告)号：WO1996015980A1

公开(公告)日：1996-05-30

申请号：PCT/US1995013675

申请日：1995-10-25

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  PIVIDAL, Katherine, A.

IPC: C01B07/07

CPC classification number: C07C17/38 ,  C01B7/0737

Abstract: A process is described for the recovery of hydrogen chloride in anhydrous form (42) from a dry mixture of one or more non-condensable gases, hydrogen chloride and heavier components which may be present (16), which process comprises using a halogenated hydrocarbon solvent (22), and especially a chlorinated hydrocarbon solvent, to preferentially absorb hydrogen chloride and heavier materials from the dry mixture, with the non-condensable gases contained in the mixture being carried through as a gas stream (38) and the rich solvent stream (36) being processed to separate out and recover the hydrogen chloride therein in anhydrous form.

Abstract translation: 描述了从可能存在的一种或多种不可冷凝气体，氯化氢和较重组分（16）的干混合物中回收无水形式（42）的氯化氢的方法，该方法包括使用卤代烃溶剂 （22），特别是氯化烃溶剂，从干混合物中优先吸收氯化氢和较重物质，混合物中所含的不可冷凝气体作为气流（38）和富溶剂流 36）被处理以分离并回收其中无水形式的氯化氢。

公开(公告)号：WO1996013533A1

公开(公告)日：1996-05-09

申请号：PCT/US1995013394

申请日：1995-10-19

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  HARRIS, William, I. ,  SAMMLER, Robert, L.

IPC: C08F257/02

CPC classification number: B01J39/20 ,  C08F257/02

Abstract: Seeded cation-exchange resin beads are particularly susceptible to oxidative degradation which results in the leaching of organic carbon fragments. The leachability of organic carbon fragments of molecular weights greater than 1000 g/mol is reduced to less than 800 ppm by effectively crosslinking the copolymers that comprise the seeded cation-exchange resin beads. Crosslinking can be achieved either during sulfonation by increasing sulfone bridge formation or before sulfonation by either alkylene bridge formation or by incorporation and subsequent activation of a crosslinkable functionality in the copolymer that forms the seed in the seeded polymer bead process.

Abstract translation: 接种的阳离子交换树脂珠对氧化降解特别敏感，这导致有机碳碎片的浸出。 通过有效交联包含接种的阳离子交换树脂珠的共聚物，分子量大于1000g / mol的有机碳碎片的可浸出性降低到小于800ppm。 在磺化期间，通过增加砜桥形成或在通过亚烷基桥形成进行磺化之前或通过在接枝的聚合物珠粒过程中形成种子的共聚物中的可交联官能团的引入和随后的活化，可以在磺化期间实现交联。

公开(公告)号：WO1996012759A2

公开(公告)日：1996-05-02

申请号：PCT/US1995013313

申请日：1995-10-19

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  BIRCH, Adrian, J. ,  FANICHET, Xavier, R., J. ,  LATHAM, Dwight, David ,  TABOR, Ricky, Lynn

IPC: C08J09/14

CPC classification number: C08J9/141 ,  C08G18/2835 ,  C08G18/6629 ,  C08G18/6696 ,  C08G2101/0025 ,  C08G2101/005 ,  C08J2375/04

Abstract: Disclosed is a process for preparing a rigid, hydrocarbon-blown, polyurethane foam by reacting a polyisocyanate with a polyurethane precursor composition comprising a polyol and a compatibilizing agent containing a compatibilizing radical of the formula: -(CnH2n+1) wherein n is a number greater than or equal to 5, and wherein the compatibilizing agent contains at least one active hydrogen atom, provided that there is no more than one aromatic group per molecule, and further wherein the compatibilizing agent is a fat, oil, monoglyceride, diglyceride, fatty acid, fatty alcohol, fatty amide, fatty amine, fatty acid ester, alkoxylated adduct of any of the foregoing, alkyl phenol or propoxylated adduct thereof, alkyl phenol or adduct thereof with ethylene oxide and propylene oxide, alkyl phenol or adduct thereof with less than an average of four molecules of ethylene oxide per molecule of alkyl phenol or a mixture thereof. A preferred compatibilizing agent is castor oil. The compatibilizing agent enhances the miscibility of the hydrocarbon blowing agent. Advantageously, the polyurethane precursor compositions exhibit improved storage stability.

Abstract translation: 公开了一种通过使多异氰酸酯与包含多元醇的聚氨酯前体组合物和含有下式的相容基团的相容剂反应制备刚性烃吹塑聚氨酯泡沫的方法： - （CnH2n + 1）其中n是数 大于或等于5，并且其中所述相容剂含有至少一个活性氢原子，条件是每分子不多于一个芳族基团，并且其中所述相容剂是脂肪，油，甘油单酯，甘油二酯，脂肪 酸，脂肪醇，脂肪酰胺，脂肪胺，脂肪酸酯，任何前述的烷氧基化加合物，烷基苯酚或其丙氧基化加合物，烷基酚或其与环氧乙烷和环氧丙烷的加合物，烷基苯酚或其加合物的摩尔比小于 每分子烷基苯酚的平均四分子环氧乙烷或其混合物。 优选的相容剂是蓖麻油。 相容剂增强烃发泡剂的混溶性。 有利地，聚氨酯前体组合物表现出改进的储存稳定性。

公开(公告)号：WO1996012743A1

公开(公告)日：1996-05-02

申请号：PCT/US1994011869

申请日：1994-10-19

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  PRIDDY, Duane, B. ,  MAURER, Brian, R.

IPC: C08F02/38

CPC classification number: C08F2/38

Abstract: Addition polymers of ethylenically unsaturated monomers are provided comprising a 5-, 6- or 7-membered polymer unit formed from a copolymerizable, unsaturated, chain transfer agent containing a labile hydrogen and capable of forming by means of a hydrogen shift mechanism a free radical having 5, 6 or 7 atoms between and including the alpha -carbon of the ethylenically unsaturated group and the labile hydrogen.

Abstract translation: 提供了烯键式不饱和单体的加成聚合物，其包括由含有不稳定氢的可共聚的不饱和链转移剂形成的能够通过氢转移机理形成的含有自由基的5-，6-或7-元聚合物单元， 5,6或7个原子，包括烯属不饱和基团的α-碳和不稳定的氢。

公开(公告)号：WO1996011970A1

公开(公告)日：1996-04-25

申请号：PCT/US1995013362

申请日：1995-10-13

Applicant: THE DOW CHEMICAL COMPANY ,  SUH, Kyung ,  DEMIRÖRS, Mehmet ,  VO, Chau, V.

Inventor： THE DOW CHEMICAL COMPANY

IPC: C08J09/12

CPC classification number: C08J9/127 ,  C08J9/122 ,  C08J2203/12 ,  C08J2203/14 ,  C08J2203/142 ,  C08J2325/02 ,  C08J2325/04

Abstract: Disclosed is a process for preparing a low density closed-cell polymer foam comprising a plurality of closed-cells having an average cell size of at least about 0.08 millimeter characterized in that the process comprises the steps of heat plastifying an expandable or foamable monovinyl aromatic polymer formulation comprising a non-linear monovinyl aromatic polymer composition and an environmentally acceptable blowing agent; and reducing the pressure on the mixture to form a foam. A stable monovinyl aromatic polymer foam prepared from a non-linear styrenic polymer composition and environmentally acceptable blowing agents is also disclosed.

Abstract translation: 公开了一种制备低密度闭孔聚合物泡沫的方法，其包括具有至少约0.08毫米的平均泡孔尺寸的多个闭孔，其特征在于该方法包括以下步骤：将可膨胀或可发泡的单乙烯基芳族聚合物 制剂，其包含非线性单乙烯基芳族聚合物组合物和环境可接受的发泡剂; 并减少混合物上的压力以形成泡沫。 还公开了由非线性苯乙烯类聚合物组合物和环境可接受的发泡剂制备的稳定的单乙烯基芳族聚合物泡沫体。

公开(公告)号：WO1996011962A1

公开(公告)日：1996-04-25

申请号：PCT/US1995014112

申请日：1995-10-11

Applicant: THE DOW CHEMICAL COMPANY ,  DEMIRÖRS, Mehmet ,  SLEECKX, Jozef, Julius ,  VOLLENBERG, Peter, Hendrikus ,  VO, Chau, V. ,  WELSH, Gary, C.

Inventor： THE DOW CHEMICAL COMPANY

IPC: C08F12/02

CPC classification number: C08F12/04 ,  C08F2/02

Abstract: Monovinyl aromatic polymer compositions with high melt strength, good flow and good heat properties which are suitable for fast injection molding, blow molding and thermoforming applications, comprising non-linear monovinyl aromatic polymers and copolymers having comb-type structures with 3 branches, star type structures with 4 to 6 branches, and/or dendritic structures in which the branches themselves have attached branched units. These compositions possess inherent melt strength and can be blow molded or thermoformed without sagging or molded into articles in shorter cycle times using less material than linear monovinyl aromatic polymers and copolymers with the same flow and heat distortion temperatures. Also dislosed is a process for making high molecular weight branched monovinyl aromatic polymers, for example, Mw between 75,000 and 500,000, at high rates, comprising polymerizing pure styrene monomer or styrene monomer and polymerizable comonomer via a continuous free radial polymerization process using a peroxide initiator, for example, n-butyl tert-butyl peroxy fumarate, selected from a new class of vinyl peroxide initiators that contain both a copolymerizable double bond and an organic peroxide moiety.

Abstract translation: 包含非线形单乙烯基芳族聚合物和共聚物的具有高熔体强度，良好流动性和良好热性能的单乙烯基芳族聚合物组合物，其包含具有3个分枝的梳型结构的非线形单乙烯基芳族聚合物和共聚物，星型结构 具有4至6个分支，和/或树枝状结构，其中分支本身具有分支单元。 这些组合物具有固有的熔体强度，并且可以吹制成型或热成型，而不会在较短的循环时间内下垂或模制成制品，使用比线性单乙烯基芳族聚合物和具有相同流动和热变形温度的共聚物更少的材料。 还包封的方法是以高速率制备高分子量支化单乙烯基芳族聚合物，例如Mw在75,000和500,000之间的方法，包括通过使用过氧化物引发剂的连续自由径向聚合方法聚合纯苯乙烯单体或苯乙烯单体和可聚合共聚单体 ，例如过氧富马酸叔丁酯，选自含有可共聚双键和有机过氧化物部分的新一类乙烯基过氧化物引发剂。

公开(公告)号：WO1996011443A1

公开(公告)日：1996-04-18

申请号：PCT/US1995013423

申请日：1995-10-05

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  SEDERLUND, Edward, R. ,  LINDESMITH, Robert, J. ,  ROOT, Larry, A. ,  DUPREE, Wayne, P. ,  THOMAS, Lowell, V.

IPC: G06F15/78

CPC classification number: G06F15/7842

Abstract: An extended Harvard architecture memory system which features an address store for containing an ordered sequence of program memory addresses, and a value store for containing a series of related data value sets. Each of the addresses contained in the address store is associated with a distinct set of instructions, such as a subroutine, that is contained in the program memory. The address store may also contain the address of one or more instruction arguments that are, in turn, contained in the value store or in a separate data memory. Both the address store and the value store are preferably connected to the same data communication path which is used by the data memory of the computer. The value store also includes a logic interface for enabling a plurality of different address increments to be programmably selected.

Abstract translation: 扩展的哈佛架构存储器系统，其特征在于包含有序序列的程序存储器地址的地址存储器和用于包含一系列相关数据值集合的值存储器。 包含在地址存储器中的每个地址与包含在程序存储器中的一组不同的指令相关联，例如子程序。 地址存储还可以包含一个或多个指令参数的地址，这些指令参数又包含在值存储器中或在单独的数据存储器中。 地址存储器和值存储器都优选地连接到由计算机的数据存储器使用的相同的数据通信路径。 值存储还包括用于使得可编程地选择多个不同的地址增量的逻辑接口。

公开(公告)号：WO1996007681A1

公开(公告)日：1996-03-14

申请号：PCT/US1995009945

申请日：1995-08-04

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  MCKAY, Kevin, W. ,  TIMMERS, Francis, J. ,  FEIG, Edward, R.

IPC: C08F212/00

CPC classification number: C08L25/08 ,  C08F4/65908 ,  C08F4/65912 ,  C08F10/00 ,  C08F210/00 ,  C08F210/02 ,  C08F210/18 ,  C08F212/00 ,  C08F212/08 ,  C08L23/08 ,  C08L23/0838 ,  C08L23/16 ,  C08L25/00 ,  C08L53/02 ,  C08L53/025 ,  C08F4/6592 ,  C08L2666/04 ,  C08F236/06 ,  C08F2500/12 ,  C08F2500/21 ,  C08F2500/03 ,  C08F210/06

Abstract: The subject invention provides a thermoset elastomer comprising a crosslinked pseudorandom or substantially random interpolymer of: (a) from 15 to 70 weight percent of at least one alpha -olefin, (b) from 30 to 70 weight percent of at least one vinylidene aromatic compound, and (c) from 0 to 15 weight percent of at least one diene. The subject invention further provides provides a thermoplastic vulcanizate comprising the thermoset elastomers of the invention as provided in a thermoplastic polyolefin matrix. The subject invention further provides processes for preparing the inventive thermoset elastomers and thermoplastic vulcanizates, as well as parts fabricated therefrom. The inventive materials have a superior balance of properties, as compared to EPM and EPDM based materials.

Abstract translation: 本发明提供了一种热固性弹性体，其包含交联的伪随机或基本上无规的互聚物：（a）15至70重量％的至少一种α-烯烃，（b）30至70重量％的至少一种亚乙烯基芳族化合物 ，和（c）0至15重量％的至少一种二烯。 本发明进一步提供了一种包含热塑性聚烯烃基质中提供的本发明的热固性弹性体的热塑性硫化橡胶。 本发明还提供了制备本发明的热固性弹性体和热塑性硫化橡胶以及由其制造的部件的方法。 与EPM和EPDM基材料相比，本发明的材料具有优异的性能平衡。

公开(公告)号：WO1996006135A1

公开(公告)日：1996-02-29

申请号：PCT/US1995009907

申请日：1995-08-04

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  NOVAK, Leo, R. ,  MILLER, Robert, C. ,  NICHOLS, Kevin, L.

IPC: C08L69/00

CPC classification number: C08L69/00 ,  C08L25/12 ,  C08L51/04 ,  C08L91/06 ,  C08L2666/02

Abstract: Filled blends of (A) carbonate polymers and (B) monovinylidene aromatic copolymers are prepared having improved combinations of resistance to linear thermal expansion and low temperature toughness. A wax additive (C) is employed which improves the low temperature toughness of the filled polymer blend. The wax additive is preferably ester wax, acid wax, polyethylene wax, or a blend of two or more of these waxes, with ester wax being the preferred wax. Preferably, specifically shaped, small particle size fillers (D) are employed which provide the resistance to linear thermal expansion and maintain the impact resistance of the filled blend. Optionally, the blend also comprises a rubber impact modifier (E) to provide improved toughness in molded articles prepared from the filled blend. These components are employed generally in amounts of from 50 to 95 percent by weight (A) and from 5 to 50 percent by weight (B) based on weight of components (A), (B) and (E); from 0.1 to 5 percent by weight (C) and from 1 to 17 percent by weight (D) based on weight of components (A, B, C, D and E); and optionally from 1 to 20 percent by weight (E) based on weight of components (A), (B) and (E).

Abstract translation: 制备（A）碳酸酯聚合物和（B）单亚乙烯基芳族共聚物的填充共混物具有改进的线性热膨胀和低温韧性的组合。 使用蜡添加剂（C），其改善填充的聚合物共混物的低温韧性。 蜡添加剂优选为酯蜡，酸性蜡，聚乙烯蜡或两种或更多种这些蜡的共混物，酯蜡是优选的蜡。 优选地，使用特定形状的小粒径填料（D），其提供对线性热膨胀的抵抗性并保持填充的共混物的耐冲击性。 任选地，共混物还包含橡胶抗冲改性剂（E），以从填充的共混物制备的模塑制品中提供改善的韧性。 这些组分通常以组分（A），（B）和（E）的重量计为50-95重量％（A）和5-50重量％（B）的量使用; 基于组分（A，B，C，D和E）的重量，0.1至5重量％（C）和1至17重量％（D）; 和（A），（B）和（E）组分的重量，可选地为1至20重量％（E）。