Abstract: A glycol dispersion of an inorganic powder is provided, which comprises glycol and an inorganic powder dispersed therein, said inorganic powder being surface-treated with a dispersant having a solubility of not less than 5 (g/100 g-water) in water of 20° C., and which contains water and/or methanol in the specific amounts. According to the present invention, it is not required to transport a slurry of water, methanol or glycol, but possible to transport in the form of powder, so that efficiency in transportation is not only enhanced, but a drastic simplification in the production steps and a cost reduction are attainable because neither a distillation apparatus for replacing a solvent such as water and methanol with glycol nor a step of wet-pulverizing is required. Moreover, a glycol dispersion of the present invention is able to reproduce the excellent shape and size of the inorganic particles before drying or in the initial state and therefore has an excellent dispersibility.
Abstract: Compositions comprising, in an aqueous phase, at least one amphiphilic polymer comprising at least one fatty chain and hydrophilic units, and at least one polyoxyalkylene, and optionally comprising a thickening system for use in particular in cosmetics.
Abstract: A cationic rosin-in-water emulsion which has been prepared without intermediate isolation of an anionic rosin-in-water emulsion and in which the dispersed rosin phase is stabilized by a cationic polymer derived from a degraded starch, said polymer having a degree of substitution of at least 0.15 quaternary groups per glucose unit.
Abstract: The present invention relates to a (a) dicarboxylated surfactant, (b) a method for its preparation and (c) application in industrial and personal care applications. The compounds of the present invention are made by reacting epoxy succinic acid and a salt of an alkyl non-ionic surfactant. The resulting compounds are quite stable and offer excellent emulsification properties.
Abstract: In a process for preparing polytetrahydrofuran, polytetrahydrofuran copolymers or diesters or monoesters thereof comprises polymerizing tetrahydrofuran in the presence of at least one telogen and/or comonomer over an acid-activated calcium montmorillonite as catalyst, the calcium montmorillonite has a BET surface area of at least 300 m2/g, an acidity of at least 0.02 mmol/g at pKa<−3 and a pore volume of at least 0.40 cm3/g for pore sizes in the range from 30 to 200 Å.
Type:
Grant
Filed:
April 10, 2000
Date of Patent:
March 26, 2002
Assignee:
BASF Aktiengesellschaft
Inventors:
Karsten Eller, Heinz Rütter, Michael Hesse, Rainer Becker
Abstract: The invention relates to a substrate provided, on at least a portion of one of its faces, with a coating with a photocatalytic property based on titanium dioxide which is at least partially crystalline and which is incorporated in the said coating partly in the form of particles predominantly crystallized in the anatase form. The invention also relates to a process for the preparation of this substrate and organic dispersions of titanium dioxide particles used in the said process for the preparation of the substrate.
Abstract: A process for making polyether polyols employing a double metal cyanide (DMC) catalyst with specific low molecular weight polyether polyols as starters in combination with specific reaction conditions and impurity levels.
Type:
Grant
Filed:
December 15, 1999
Date of Patent:
March 19, 2002
Assignee:
SynUthane International, Inc.
Inventors:
James M. O'Connor, Donald L. Lickei, Robin L. Grieve
Abstract: Coating composition including a film-forming component, further including (a) a product formed by reacting a mixture including carboxy functional polymer, hydroxy functional polymer, or a mixture thereof, or ethylenically unsaturated monomer, with epoxy resin, and (b) a polyvinyl alcoholic-containing phenolic resol resin. Also provided is a method of coating a metal substrate with said coating composition. Further provided is a composite material comprising a metal substrate having at least one surface covered with a cured film of the coating composition.
Abstract: A process for polymerizing cyclic ethers over a heterogeneous catalyst comprises using a heterogeneous catalyst comprising one or more pillared interlayered clays (PILCs).
Type:
Grant
Filed:
November 9, 1999
Date of Patent:
March 19, 2002
Assignee:
BASF Aktiengesellschaft
Inventors:
Karsten Eller, Frank Stein, Christoph Sigwart, Rainer Becker, Klaus-Dieter Plitzko, Rolf Fischer, Ulrich Müller
Abstract: Clear lacquer coating media suitable for multi-layer coatings, containing self-crosslinking or externally crosslinkable binder vehicles, organic solvents, and in the case of externally-crosslinkable binder vehicles containing one or more crosslinking agents which are different from aldehyde condensation resins, and optionally also containing one or more reactive thinners and customary additives for clear lacquers, with an additional content of
A) 0.1 to 3% by weight one or more urea compounds, and
B) 0.05 to 10% by weight one or more substances which supply formaldehyde, with respect in each case to the resin solids content which is formed by the binder vehicles, reactive thinners and crosslinking agents.
Type:
Grant
Filed:
March 16, 2000
Date of Patent:
March 12, 2002
Assignee:
Dupont Performance Coatings GmbH & Co.
Inventors:
Stephan Brenke, Karl-Friedrich Dössel, Friedrich Herrmann, Heinz-Walter Reifferscheidt
Abstract: Method and apparatus for cutting high viscosity liquid material, said apparatus comprising a cylinder divided into upper and lower tanks by a partition with a central discharge opening, a moveable and elevatable liquid supply pipe with a distal end positioned opposite the discharge opening, the liquid supply pipe being mounted so that it can be raised until its distal end contacts the partition around the discharge opening, and then lowered until there is no contact, means for raising and lowering the liquid supply pipe, the upper tank having peripheral injection ports for injecting a low viscosity liquid into the upper tank, means for feeding high viscosity liquid material into the lower tank and flowing it into the upper tank, means for feeding low viscosity liquid into the liquid supply pipe and for feeding low viscosity liquid into the peripheral injection ports, the high viscosity liquid material flowing from the lower tank into the upper tank when the liquid supply pipe is lowered, the high viscosity li
Abstract: A flame retardant epoxy resin composition containing not more than 10% by wgt. of halogen, comprising an epoxy resin, stated concentrations of phosphoric acid ester, nitrogen—containing cross-linking agent having an amine functionality of at least 2 and a catalyst capable of promoting the reaction of the phosphoric acid ester with the epoxy resin and promoting the curing of the epoxy resin with the cross-linker, and optionally a Lewis acid in a stated amount.
Type:
Grant
Filed:
March 20, 2000
Date of Patent:
March 5, 2002
Assignee:
The Dow Chemical Company
Inventors:
Joseph Gan, Alan Goodson, Raymond A. Koenig, John P. Everett
Abstract: An alkyl polyglycoside and fatty alcohol composition useful as an emulsifier includes:
a) 8 to 40% by weight of an alkyl polyglycoside component consisting essentially of:
0 to 20% by weight of at least one alkyl polyglycoside of formula (I):
R1O(G1)x1 (I)
in which R1 is a linear or branched alkyl radical having 16 or 18 carbon atoms, G1 is a saccharide residue and x1 is between 1 and 5;
0 to 100% by weight of an alkyl polyglycoside of formula (II):
R2O(G2)2 (II)
in which R2 is a linear or branched alkyl radical having 14 carbon atoms, G2 is a saccharide residue and x2 is between 1 and 5; and
0 to 100% by weight of at least one alkyl polyglycoside of formula (III):
R3O(G3)x3 (III)
in which R3 is a linear or branched alkyl radical having 20 or 22 carbon atoms, G3 is a saccharide residue and x3 is between 1 and 5; and
b) 60 to 92% by weight of a linear or branched aliphatic alcohol having from 14 to 22 carbon atoms.
Type:
Grant
Filed:
April 17, 1998
Date of Patent:
March 5, 2002
Assignee:
Societe d'Exploitation de Produits pour les Industries
Chimiques S.E.P.P.I.C.
Inventors:
Chantal Amalric, Jean-Pierre Boiteux, Alain Milius, Nelly Michel
Abstract: Metal compounds of pseudohalogenides and their use as curing agents for epoxy compounds which curing agents can be produced by mixing the reactants in aqueous solution and are distinguished by a long processibility time at temperatures up to 100° C. as well as by very short curing times at temperatures in the range of 120 to 160° C.
Type:
Grant
Filed:
October 6, 1999
Date of Patent:
March 5, 2002
Assignee:
Bakelite AG
Inventors:
Andreas Palinsky, Manfred Doring, Holger Dey, Jorg Wuckelt
Abstract:
wherein
R1 is substituted or unsubstituted alkyl;
R2 is substituted or unsubstituted alkyl;
R3 is substituted or unsubstituted alkyl;
Z is halogen selected from F, Cl, Br and I;
x is from about 5 to about 45 mole %; and
y is from about 55 to about 95 mole % are useful as wet strength resins and creping adhesives. Methods of producing such resins, and the use of such resins in wet strength and creping applications, as well as compositions suitable for such applications, and combinations of cellulosic product and such resins are also disclosed.
Abstract: Methods and compositions are described for the preparation of bioactive agents entrapped in lipid vesicles the bilayers of which comprise a salt form of an organic acid derivative of a sterol, such as the tris-salt form of a sterol hemisuccinate, and to bompositions comprising a mixtue of tris(hydroxymethyl)aminomethane salt of cholesteryl hemisuccinate with either an antifungal compound or a peptide. These compositions have various applications in vivo.
Type:
Grant
Filed:
August 18, 1993
Date of Patent:
March 5, 2002
Assignee:
The Liposome Company Inc.
Inventors:
Andrew S. Janoff, Mircea C. Popescu, Alan L. Weiner, Lois E. Bolcsak, Paul A. Tremblay, Christine E. Swenson
Abstract: Improved thermal stability and good adhesion to polyurethane foam are provided by polyphenylene ether thermoplastic blends containing a polystyrene and an aromatic amine. Preferred compositions additionally containing tackifier resins are described. These compositions are particularly useful for molding automobile interior parts.
Abstract: Conductive thermosetting epoxy resins are produced by mixing a metallic salt or oxide with an inorganic acid to form a metallic ion solution. An alcohol is added to effect a secondary dehydration and form a complex ion polymer with double bonds and p electrons. The mixture is neutralized to produce a high molecular weight polymer of low electronic impedance. This polymer is then copolymerized with an epoxy resin.
Abstract: A method of-treating a relatively aged animal to reverse age-related changes in the lipid composition of organ and tissue cells, such as heart muscle cells, and the ability of the animal to withstand respiratory stress. A suspension of small unilamellar vesicles composed predominantly of egg phosphatidyl choline is administered parenterally to the animal, preferably over a period of several days and at a dose level of between about 0.1 and 1 grams lipid per kg body weight per day. Changes in the heart muscle cells are reflected in decreased levels of serum creatine phosphokinase. Liposome administration is continued until the serum creatine phosphokinase level drops at least about 50%. Also disclosed are liposome treatment methods for increasing longevity and male fertility.
Type:
Grant
Filed:
May 3, 1994
Date of Patent:
February 19, 2002
Assignees:
Yissum Research and Development Co. of The Hebrew University
of Jerusalem, Hadassah Medical Organization
Abstract: This invention provides a milk lotion, cream or the like which does not undergo oil-water phase separation but remains stable for a long time and, in addition, has a good skin feel with good spreadability. It is a water-in-oil emulsifier composition comprising liquid oil basis, liquid oil component gelling agent, water and, as a water-in-oil type surfactant, polyglycerin fatty acid ester and/or polyoxyethylene hydrogenated castor oil.