公开(公告)号：WO1992012097A1

公开(公告)日：1992-07-23

申请号：PCT/US1991009629

申请日：1991-12-20

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  MERTZ, Steven, F.

IPC: C01F05/22

CPC classification number: C01F5/14 ,  C01F5/22 ,  C01P2002/60 ,  C01P2004/22 ,  C01P2004/61 ,  C01P2004/62 ,  C08K3/22 ,  C09K21/02

Abstract: Magnesium hydroxide having a particulate, crystalline structure with a thickness of 30 to 200 Angstroms, and a median particle size of up to about 1 micron prepared by a process in which less than or greater than an equivalent amount of alkaline material is reacted with a magnesium salt in a concentrated aqueous mixture thereof. The magnesium hydroxide is especially useful in providing flame retardancy in admixture with thermoplastic resins.

Abstract translation: 具有30至200埃厚度的颗粒状晶体结构的氢氧化镁，以及通过使等于或大于等量的碱性材料与镁反应的方法制备的中等粒度至多约1微米 盐在其浓缩的水性混合物中。 氢氧化镁特别适用于与热塑性树脂混合提供阻燃性。

公开(公告)号：WO1992011219A1

公开(公告)日：1992-07-09

申请号：PCT/US1991009373

申请日：1991-12-13

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  DOTY, Peter, A. ,  MOYER, John, R. ,  HUGHES, Neal, N. ,  BRUBAKER, Burton, D.

IPC: C04B35/18

CPC classification number: F01N3/2828 ,  B01D39/2086 ,  C04B30/02 ,  C04B38/009 ,  C04B2111/00793 ,  C30B9/00 ,  C30B29/34 ,  F01N3/0222 ,  F01N2330/06 ,  F02B3/06 ,  Y02T10/20 ,  C04B35/185 ,  C04B14/46

Abstract: A process for producing mullite whiskers includes heating a non-stoichiometric mixture containing aluminum and silicon to a temperature within a range of 500 DEG C to 950 DEG C in the presence of SiF4 gas to form fluorotopaz and then to a temperature within a range of 800 DEG C to 1500 DEG C to convert the fluorotopaz into mullite. A mullite whisker-forming composition that procudes an interlaced network of single crystal mullite whiskers with a controlled permeability comprises a mixture of an aluminum-containing material with a silicon-containing material and a fluxing agent which melts at temperatures below 1000 DEG C. The ratio of aluminum atoms to silicon atoms in the resultant product is approximately non-stoichiometric. The network may, for example, be used to fabricate a regenerable exhaust gas filter element for diesel engines.

Abstract translation: 制造莫来石晶须的方法包括在SiF 4气体存在下，将含有铝和硅的非化学计量混合物加热至500℃至950℃的温度，以形成氟托吡斯，然后在800℃ DEG至1500℃，将氟托铵转化为莫来石。 形成具有可控渗透率的单晶莫来石晶须的交织网络的莫来石晶须形成组合物包括含铝材料与含硅材料的混合物和在低于1000℃的温度下熔化的助熔剂。 的铝原子与所得产物中的硅原子近似为非化学计量的。 网络可以例如用于制造用于柴油发动机的可再生废气过滤元件。

公开(公告)号：WO1992010364A1

公开(公告)日：1992-06-25

申请号：PCT/US1991009229

申请日：1991-12-06

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  PIERINI, Peter, E. ,  WESSLING, Ritchie, A. ,  KIM, Peter, K.

IPC: B32B09/00

CPC classification number: C08J5/04 ,  C08J2379/04 ,  C08J2381/00 ,  Y10T428/24994 ,  Y10T428/24995 ,  Y10T428/30

Abstract: Fibers may be prepregged with a dope containing polybenzoxazole or polybenzothiazole. The prepreg may be contacted with water or another nonsolvent to coagulate the polymer and form a matrix composite.

公开(公告)号：WO1992006844A1

公开(公告)日：1992-04-30

申请号：PCT/US1991007719

申请日：1991-10-15

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  TABOR, Ricky, L. ,  ALLEN, James, A.

IPC: B32B15/08

CPC classification number: B32B15/085 ,  B32B15/08 ,  B32B27/32 ,  B32B2270/00 ,  B32B2309/02 ,  B32B2323/043 ,  B32B2323/046 ,  C08F8/46 ,  C08F255/02 ,  C08L23/0815 ,  C08L51/06 ,  C08L2666/04 ,  C08L2666/24 ,  C09D123/0815 ,  C09D151/06 ,  C09J123/0815 ,  C09J151/06 ,  Y10T428/31692 ,  C08F10/00 ,  C08F222/06

Abstract: Succinic acid or succinic anhydride grafts of HDPE were blended with LLDPE, especially ethylene/1-octene copolymers, to form blends having useful adhesive properties at elevated temperatures. The succinic acid or succinic anhydride groups were provided by grafting, respectively, maleic acid or maleic anhydride onto HDPE. The resin blends were useful for coating metal foil substrates. The adhesion of the resin blend to the metal foil substrate is particularly good at elevated temperatures (e.g., temperatures above 60 DEG C).

Abstract translation: 将HDPE的琥珀酸或琥珀酸酐接枝物与LLDPE，特别是乙烯/ 1-辛烯共聚物共混，以在高温下形成具有有用粘合性质的共混物。 琥珀酸或琥珀酸酐基团分别通过将马来酸或马来酸酐接枝到HDPE上来提供。 树脂共混物可用于涂覆金属箔基材。 树脂共混物对金属箔基材的粘附性在升高的温度（例如，高于60℃的温度）下特别好。

公开(公告)号：WO1992004498A1

公开(公告)日：1992-03-19

申请号：PCT/GB1991001476

申请日：1991-08-30

Applicant: THE DOW CHEMICAL COMPANY ,  HALLWORTH, Gerald

Inventor： THE DOW CHEMICAL COMPANY

IPC: D06N07/00

CPC classification number: B05D1/40 ,  D06N7/0073 ,  D06N2203/026 ,  D06N2203/042 ,  D06N2205/04

Abstract: A method of forming a carpet comprising applying an adhesive to a backing material (1) via a perforated roller (3). As the roller (3) is passed over the backing material (1) adhesive is displaced out through the perforations in the roller (3) onto the backing material (1). Once the adhesive has been applied to the backing material (1) the backing material (1) is secured to the back surface of a pre-coated textile substrate layer.

Abstract translation: 一种形成地毯的方法，包括通过多孔辊（3）将粘合剂施加到背衬材料（1）上。 当辊（3）穿过背衬材料（1）时，粘合剂通过辊（3）中的穿孔被移出到背衬材料（1）上。 一旦将粘合剂施加到背衬材料（1）上，背衬材料（1）固定到预涂布的织物基底层的背面。

公开(公告)号：WO1992001094A1

公开(公告)日：1992-01-23

申请号：PCT/US1991004407

申请日：1991-06-21

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  JEZIC, Zdravko, P.

IPC: D01D05/26

CPC classification number: D01F6/70 ,  C08G18/6511 ,  C08G18/6674 ,  D01D5/0985 ,  D04H1/56

Abstract: Disclosed is a melt-blowing process for producing a fiber of an extrudable polyurethane having a large amount of hard segment, which comprises supplying a polyurethane comprising the reaction product of: (a) an organic polyisocyanate; (b) an isocyanate-reactive material having an average functionality of at least 1.9, a glass transition temperature (Tg) of less than 20 °C, and a molecular weight in the range of 500 to 20,000; and (c) at least one chain extender having a functionality from 2 to 3 and a molecular weight from 50 to 400; which reaction product has up to 25 percent by weight of soft segment derived from the organic polyisocyanate (a) and the isocyanate-reactive material (b) and at least 75 percent by weight of hard segment derived from the organic polyisocyanate (a) and the chain extender (c), in a molten form from at least one orifice of a nozzle (9) into a gas stream (10) supplied to an area adjacent to the orifice which attenuates the molten polymer into fibers. Such microfibers are particularly useful in the field of high temperature filtration, coalescing and insulation.

公开(公告)号：WO1992000346A1

公开(公告)日：1992-01-09

申请号：PCT/US1991003037

申请日：1991-04-30

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  MALONE, Bruce, A.

IPC: C08J09/14

CPC classification number: C09K3/16 ,  C08K5/10 ,  C08K5/19 ,  C08L23/02 ,  C08L2666/22

Abstract: Polyolefin foams and films having improved electrostatic properties are provided by incorporating into the polyolefin foam or film a novel antistatic additive composition comprising 0.1 to 10 parts per hundred based on the weight of the olefin polymer of a quaternary ammonium salt and 0.1 to 10 parts per hundred based on the weight of the olefin polymer of a partial ester of a long-chain fatty acid with a polyol. A method of making the foam containing the novel antistatic additive composition is also disclosed.

公开(公告)号：WO1991018697A1

公开(公告)日：1991-12-12

申请号：PCT/US1990003149

申请日：1990-06-04

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  CISAR, Alan, J. ,  BROOKS, Calvin, F.

IPC: B22F01/00

CPC classification number: B22F1/025 ,  H01F1/0577 ,  H01F1/0578 ,  Y10T428/12056 ,  Y10T428/12181

Abstract: A metal-metal matrix composite magnet including a magnetic material such as a neodynium-iron-boron magnetic phase bonded by a metal matrix, preferably copper and a method of making the magnet which involves platin a thin metal layer, for example, a layer having a thickness of less than 1000 angstrom average, from a preferably non-aqueous solution, onto the surface of a magnetic phase, pressing the powder, with or without magnetic alignement, into the desired shape and then sintering the pressed powder at a temperature below about 400 DEG C.

Abstract translation: 包括由金属基体，优选铜结合的诸如钕铁硼磁磁相的磁性材料的金属 - 金属基复合磁体，以及制造涉及镀金属薄层的磁体的方法，例如具有 从优选非水溶液平均小于1000埃的厚度到磁性相的表面上，用或不用磁性对准将粉末压制成所需形状，然后在低于约 400℃

公开(公告)号：WO1991018665A1

公开(公告)日：1991-12-12

申请号：PCT/US1991000620

申请日：1991-01-29

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  REDDY, Damoder ,  REINEKE, Charles, E. +di ,  MOON, Tag, Young

IPC: B01D63/10

CPC classification number: B01D63/10

Abstract: The present invention relates to an improved design for a spiral-wound membrane separation device. The improved module (50) has one feed pipe (51A) separated into compartments (A, B) which are connected axially to a porous spacer (55) surrounded by a membrane envelope (54). A separate permeate pipe (51B) is immediately adjacent and generally in a parallel configuration to the fluid feed pipe (51A) and is in fluid communication with a different porous spacer sheet (58). When the porous feed membrane (54) are combined using appropriate complementary shaped spaced filling means (52A, 52B), a spiral-wound membrane separation device is obtained having two centrally located pipes. In one aspect, the membrane separation module (50) further includes means for the addition of a countercurrent or cocurrent sweep fluid (gas) permeate.

Abstract translation: 本发明涉及螺旋卷绕膜分离装置的改进设计。 改进的模块（50）具有分隔成隔室（A，B）的一个进料管（51A），它们轴向地连接到由膜封套（54）包围的多孔隔离物（55）。 单独的渗透管（51B）与流体供给管（51A）紧邻并且大致为平行配置，并且与不同的多孔隔离片（58）流体连通。 当使用适当的互补形状的间隔填充装置（52A，52B）组合多孔进料膜（54）时，获得具有两个中心定位的管的螺旋缠绕膜分离装置。 在一个方面，膜分离模块（50）还包括用于添加逆流或并流扫流（透气）的装置。

公开(公告)号：WO1991017944A1

公开(公告)日：1991-11-28

申请号：PCT/US1990002311

申请日：1990-05-18

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  HUFF, Georgia, M. ,  KOCH, Kaelyn, C. ,  MURPHY, Mark, W. ,  THOMAS, Christopher, J.

IPC: B65H81/00

CPC classification number: B32B27/08 ,  B32B27/18 ,  B32B27/32 ,  B32B27/322 ,  B32B2323/046 ,  B32B2553/00 ,  C08L23/0815 ,  C08L23/20 ,  C08L2666/06

Abstract: A wrap-packaging film laminate (1) having differential cling is provided having at least two layers, one which is an outer reverse layer (2) comprising a linear very low density ethylene copolymer (LVLDPE) having a critical density of less than about 0.915 g/cc which reverse layer contains a tackifier in an amount typically less than 6 percent by weight, which is sufficient to impart the desired level of cling, one of which comprises an obverse layer (3) of an olefin polymer or copolymer, such as a linear low density ethylene copolymer (LLDPE) which has a critical density of at least 0.916 g/cc which has little or no cling, and wherein the difference in density between the reverse layer and the obverse layer is at least 0.004 g/cc, the said differential cling properties being manifested in the higher level of cling of the LVLDPE reverse layer (2) as compared to that of the obverse layer (3).

Abstract translation: 提供具有差分粘附的包装薄膜层压板（1），其具有至少两层，一层是包含临界密度小于约0.915的线性极低密度乙烯共聚物（LVLDPE）的外反层（2） g / cc，该反向层含有通常小于6重量％的增粘剂，其足以赋予所需水平的粘附，其中之一包含烯烃聚合物或共聚物的表面层（3），例如 线性低密度乙烯共聚物（LLDPE），其具有至少0.916g / cc的临界密度，其具有很少或没有粘附，并且其中反层和正面层之间的密度差为至少0.004g / cc， 所述差分粘附性质表现在与正面层（3）相比，LVLDPE反向层（2）的粘附的较高水平。