Abstract: The present invention relates to substantially free-flowing polymer particles. The polymer particles are those which have a one millimeter penetration temperature of less than about 75° C. as determined by thermal mechanical analysis or an unconfined yield strength of greater than about 15 pounds per square foot (73 kilograms per square meter). The composition also comprises an effective amount of an anti-blocking agent in the presence or absence of a binding agent.
Type:
Grant
Filed:
October 8, 2004
Date of Patent:
September 5, 2006
Assignee:
The Dow Chemical Company
Inventors:
James W. McMichael, Jeffrey Richard Montayne, Friedheim Bunge, Shirkant V. Dhodapkar
Abstract: A polypropylene nanocomposite composition having at least the following two elements. The first element is a maleated polypropylene polymer having a weight average molecular weight greater than 100,000. The second element is a cation exchanging layered silicate material dispersed in the maleated polypropylene so that more than one half of the layers of the cation exchanging layered silicate material are present as one, two, three, four or five layer units upon examination by electron microscopy. A thermoplastic olefin nanocomposite composition can be obtained by interdispersing a thermoplastic elastomer phase with the above-described polypropylene nanocomposite composition.
Type:
Grant
Filed:
December 29, 1999
Date of Patent:
August 1, 2006
Assignee:
The Dow Chemical Company
Inventors:
Chai-Jing Chou, Eddy I. Garcia-Meitin, Lonnie Schilhab, Richard F. Fibiger
Abstract: The invention relates to a process for the epoxidation of an olefin comprising (a) reacting the olefin with hydrogen peroxide in the presence of methanol as solvent in at least two reaction stages to obtain a mixture (M-a) comprising olefin oxide, unreacted olefin, methanol and water, wherein between at least two reaction stages, olefin oxide is separated by distillation; (b) separating unreacted olefin from the mixture (M-a) by distillation to obtain a mixture (M-bi) comprising at least 80 wt.-% of olefin and a mixture (M-bii) comprising methanol, water and at least 7 wt.-% of olefin oxide; (c) separating olefin oxide from the mixture (M-bii) in at least one distillation stage to obtain a mixture (M-ci) comprising at least 99 wt.-% of oletin oxide and a mixture (M-cii) comprising water and at least 55 wt.-% of methanol; (d) separating methanol from the mixture (M-cii) in at least one distillation stage to obtain a mixture (M-di) comprising at least 85 wt.-% of methanol and up to 10 wt.
Type:
Application
Filed:
January 18, 2005
Publication date:
July 20, 2006
Applicants:
BASF Aktiengesellschaft, The Dow Chemical Company
Abstract: A method for producing synthetic magadiite, including the step of: heating a liquid aqueous colloidal silica suspension, the liquid aqueous colloidal silica suspension having a mole ratio of sodium hydroxide to silica and a mole ratio of water to silica effective to produce a synthetic magadiite wherein more than fifty percent by weight of the synthetic magadiite is platy synthetic magadiite. The synthetic platy magadiite can be converted to the acid form and: (a) heated to produce quartz-like plates; or (b) alkylated to produce an organophilic material. A method for the production of platy sodium octasilicate and a method for preparing a liquid aqueous colloidal silica dispersion having a mole ratio of silica to sodium oxide of 3.5 to 10 are further disclosed.
Abstract: The present invention provides a method for manufacturing a glycoprotein having a mammalian-type or human-type sugar chain comprising a step in which a transformed plant cell is obtained by introducing to a plant cell a gene encoding a glycosyltransferase enzyme and a gene encoding an exogenous glycoprotein, and a step in which the obtained transformed plant cell is cultivated.
Abstract: The present invention provides a unitary run flat tire (RFT) reinforcement using filament material that is formed into a relatively rigid shape. The reinforcement is insertable into a mold for an RFT support and can maintain the needed structural rigidity for such insertion. Further, the invention provides an RFT support that is molded and includes the RFT reinforcement. The invention also provides a wheel assembly including a tire, a rim, and an RFT support between the rim and the tire, where the support includes the RFT reinforcement. The RFT support can have a colored indicator formed or subsequently applied thereto to indicate one or more attributes of the support.
Type:
Application
Filed:
October 10, 2005
Publication date:
February 9, 2006
Applicant:
The Dow Chemical Company
Inventors:
Rick Tabor, Patricio Jimenez, Wayne Wilkomm, Ralph Priester, C. Martin, Chris Christenson, Kimberly Bennett, Peder Danielsen, Jeffery Zawisza
Abstract: In the present invention, an inorganic reactant is, or reactants are, localized with respect to a dendritic polymer by physical constraint within or by a non-covalent conjugation to the dendritic polymer. The localized inorganic reactant or reactants is/are subsequently transformed to form a reaction product which is immobilized with respect to the dendritic polymer. This immobilization occurs on a nanoscopic scale as a consequence of the combined effects of structural, chemical and physical changes without having covalent bonds between the product(s) and the dendritic container and results in new compositions of matter called dendritic nanocomposites. The resulting nanocomposite material can be used to produce revolutionary products such as water soluble elemental metals, with specific applications including magnetic resonance imaging, catalytic, magnetic, optical, photolytic and electroactive applications.
Abstract: The present invention provides a unitary run flat tire (RFT) reinforcement using filament material that is formed into a relatively rigid shape. The reinforcement is insertable into a mold for an RFT support and can maintain the needed structural rigidity for such insertion. Further, the invention provides an RFT support that is molded and includes the RFT reinforcement. The invention also provides a wheel assembly including a tire, a rim, and an RFT support between the rim and the tire, where the support includes the RFT reinforcement. The RFT support can have a colored indicator formed or subsequently applied thereto to indicate one or more attributes of the support.
Type:
Grant
Filed:
September 6, 2001
Date of Patent:
January 24, 2006
Assignee:
The Dow Chemical Company
Inventors:
Rick L. Tabor, Patricio Jimenez, Jr., Wayne R. Wilkomm, Ralph D. Priester, Jr., Marty C. Cornell, Chris P. Christenson, Kimberly F. Bennett, Peder E. Danielsen, Jeffery D. Zawisza
Abstract: A method of separating propylene oxide from a mixture (M) comprising 5 to 50 percent by weight propylene oxide and 50 to 85 percent by weight methanol, said method comprising (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing a polar solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column at a bottoms temperature of from 40 to 70° C. and at a pressure of from 300 to 750 mbar.
Type:
Application
Filed:
July 7, 2004
Publication date:
January 12, 2006
Applicants:
BASF Aktiengesellschaft, The Dow Chemical Company
Abstract: A method of separating propylene oxide from a mixture (M) comprising propylene oxide and methanol, said method comprising (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing an extracting solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column as top stream; (iv) withdrawing a bottoms stream from said extractive distillation column; (v) compressing the top stream obtained overhead in (iii) by means of at least one compressor to give a compressed vapor.
Type:
Application
Filed:
July 7, 2004
Publication date:
January 12, 2006
Applicants:
BASF Aktiengesellshaft, The Dow Chemical Company
Abstract: Mucin peptide epitopes are inserted into the coat protein of a plant virus (e.g., a comovirus such as CPMV) having a beta-barrel structure at an immunogenically effective site, such as in a loop connecting beta sheets or at/near the C-terminus. The resulting chimaeric virus particles are extremely immunogenic, giving better results than KLH conjugation and not requiring the addition of exogenous adjuvant. They are effective at mucosal surfaces, particularly when administered intranasally.
Type:
Grant
Filed:
September 11, 2000
Date of Patent:
December 27, 2005
Assignee:
The Dow Chemical Company
Inventors:
Mary Bendig, Tim Jones, Koen Hellendoorn
Abstract: A catalytic powder comprising a plurality of support metal particles with a porous coating (12) surrounding the metal particles (11), the porous coating comprising either an electrocatalytic metal or an electrocatalytic metal continuous phase in admixture with a particulate material (14). An electrode made with the catalytic powder and a method to make the electrode is also disclosed. The present invention is advantageous because the porous coating mixture is first applied to a powder rather than being applied directly to a metal substrate, thereby creating a large internal surface area on the electrode and accordingly, lower overpotential requirements.
Abstract: The present invention relates to a method of separating an olefin from a gas stream, said gas stream comprising the olefin and at least one other component, said method comprising (i) compressing and cooling the gas stream; (ii) separating the olefin from the gas stream by absorbing the olefin in an absorbent; (iii) separating the olefin from the absorbent by desorption; wherein compressing or cooling or compressing and cooling in (i) is carried out at least twice.
Type:
Application
Filed:
April 21, 2004
Publication date:
October 27, 2005
Applicants:
BASF Aktiengesellschaft, The Dow Chemical Company
Abstract: Flexible hydrogenated block copolymers can be successfully used in a variety of applications including films, profiles, sheets, coatings, injection molded articles, blow or rotational molded articles and pultruded articles.
Type:
Grant
Filed:
November 25, 2002
Date of Patent:
July 5, 2005
Assignee:
The Dow Chemical Company
Inventors:
Robert J. Donald, Stephen F. Hahn, James E. Pate, III
Abstract: This invention is a process for producing vinyl chloride from an ethylene-containing feed, oxygen, and a chlorine source in the presence of a catalyst. The process permits direct production of vinyl chloride in a single reactor system, and further permits ethane to be used as the C2 hydrocarbon feed with recycle of ethylene from the product stream to constitute the ethylene specified for the feed. This invention in another aspect concerns also a composition of matter, and a method for making the composition, wherein the composition is useful as a catalyst for the vinyl chloride process. The composition comprises a rare earth-containing material, with the proviso that the catalyst prepared therefrom is substantially free of iron and copper and with the further proviso that when cerium is present the catalyst further comprises at least one more rare earth element other than cerium.
Type:
Grant
Filed:
October 3, 2000
Date of Patent:
June 21, 2005
Assignee:
The Dow Chemical Company
Inventors:
Mark E. Jones, Michael M. Olken, Daniel A. Hickman
Abstract: The invention relates to assembled particles of a plant virus containing a foreign peptide insert in the coat protein of the virus. The site of the insert is preferably free from direct sequence repeats flanking the insert. The invention relates to a method of production of the particles and their use, in particular in vaccines.
Type:
Grant
Filed:
May 5, 1999
Date of Patent:
April 26, 2005
Assignee:
The Dow Chemical Company
Inventors:
George P. Lomonossoff, John E. Johnson, Mary Bendig, Tim Jones, Marian Longstaff
Abstract: Metal complexes having constrained geometry and a process for preparation thereof, addition polymerization catalysts formed therefrom, processes for preparation of such addition polymerization catalysts, methods of use, and novel polymers formed thereby, including ElPE resins and pseudo-random copolymers, are disclosed and claimed.
Abstract: A complex of a Group 3-10 metal, said complex comprising a cyclic group containing delocalized electrons, a bridging group connecting he metal with the cyclic group, and acetylene or a derivative thereof.
Abstract: The present invention concerns the use of a radioiodinated phenolic compound of the formula wherein: m and n are independently 0, 1, 2 or 3, X is a group that is negatively or positively charged at physiological pH, R, R1, R2 and R3 are independently hydrogen, C1-C4 alkyl, or a carboxyl group, and I* is 123I, 131I or 125I, and its pharmaceutically-acceptable salts. The compound is formulated and used in vivo in an animal in brachytherapy in an implantable catheter. In addition, due to the rapid renal clearance of these compounds, they may be used to study renal function. A process to prepare these compounds is also disclosed.
Type:
Grant
Filed:
December 18, 2001
Date of Patent:
March 1, 2005
Assignee:
The Dow Chemical Company
Inventors:
Jaime Simon, R. Keith Frank, Alan D. Strickland
Abstract: Metal complexes having constrained geometry and a process for preparation thereof, addition polymerization catalysts formed therefrom, processes for preparation of such addition polymerization catalysts, methods of use, and novel polymers formed thereby, including ElPE resins and pseudo-random copolymers, are disclosed and claimed.