Abstract: A continuous process and system for preparing branched aldehydes by reacting aldehyde with an acid polymeric catalyst absent any metal from Group VIII to produce a product having about 10 to 99.99% by weight branched unsaturated aldehyde and at least 92% selectivity of reaction to the branched aldehyde and recycling a portion of the product.
Type:
Grant
Filed:
December 7, 2012
Date of Patent:
June 3, 2014
Assignees:
Rohm and Haas Company, Dow Global Technologies LLC
Inventors:
Michael C. Becker, Robert J. Olsen, James F. Tate, Jose Antonio Trejo-O'Reilly
Abstract: Provided are protected antimicrobial compounds which are useful for controlling microorganisms in aqueous or water-containing systems, such as oil or gas field fluids, at elevated temperature. The antimicrobial compounds are of the formula I: wherein R, R1, R2, X and Y are as defined herein.
Type:
Grant
Filed:
December 2, 2011
Date of Patent:
June 3, 2014
Assignees:
Dow Global Technologies LLC, ANGUS Chemical Company
Inventors:
Charles E. Coburn, Michael V. Enzien, Heather R. Mcginley, David W. Moore
Abstract: Procedure for the manufacture of carboxylated ethylene polymer blends, in which in a 1st step, in a fluid mixing reactor, to 100 pbw of a particulate ethylene polymer—chosen from among ethylene homopolymers (HDPE, LDPE) and/or linear ethylene copolymers with 2 to ?20 wt.-% polymerized-in C3-12-olefin units (LLDPE, EOP), with a melt-flow rate MFR (190° C./2.16 kg)?20 g/10 min—are added 0.05-15 pbw of a ?,?-ethylenically unsaturated mono and/or dicarboxylic acid or its anhydride (carboxyl monomer), or a monomer mixture containing at least one carboxyl monomer and 0.01-10 pbw of a radical initiator or initiator mixture, and graft-polymerizing at reaction temperatures of 30-120° C., over a reaction time of 5-120 min and subsequently, in a 2nd step, reacting a mixture continuously fed into a reaction extruder of 100 pbw of the modified ethylene polymer obtained in the 1st solid phase step, 150-4,000 pbw of an ethylene polymer or polymer blend with a melt flow rate MFR (190° C., 2.
Abstract: In a method of removing alkylene halogenohydrin from a cellulose ether the cellulose ether is provided, water is added to the cellulose ether and subsequently alkylene halogenohydrin and water is removed from the cellulose ether by evaporation. Alternatively steam or a steam mixture can be sparged across or through the cellulose ether to remove halogenohydrin from the cellulose ether.
Type:
Application
Filed:
July 17, 2012
Publication date:
May 29, 2014
Applicant:
Dow Global Technologies LLC
Inventors:
Richard A Engleman, David W. Ziettlow, Robert E. Scheid, JR., Charles B. Mallon, Matthias Sprehe, Andrew C. Arthur
Abstract: The invention provides a first composition comprising at least the following: A) a first ethylene-based polymer; B) one or more antioxidants, present in an amount greater than 1000 ppm, based on the weight of the first composition; and C) an “oxy amine”-containing compound.
Type:
Application
Filed:
July 6, 2012
Publication date:
May 29, 2014
Applicants:
Dow Brasil Indústria e Comércio de Produtos Químicos Ltda., Dow Global Technologies LLC
Abstract: The instant invention provides a crosslinkable aqueous composition, method of producing the same, crosslinked compositions, and method of producing the same. The crosslinkable composition comprising: an aqueous dispersion comprising; (a) water; (b) a polycarbamate comprising at least an average of 2.0 carbamate functional groups; (c) a polyaldehyde comprising at least two aldehyde groups; (d) an acid catalyst; and (e) optionally one or more surfactants; wherein said aqueous dispersion has a pH in the range of less than 7; and wherein said composition is capable of being crosslinked at a temperature in range of less than 80° C. upon substantial removal of water.
Type:
Grant
Filed:
December 27, 2012
Date of Patent:
May 27, 2014
Assignees:
Dow Global Technologies LLC, Rohm and Haas Company
Inventors:
Eric Greyson, John N. Argyropoulos, Paul Foley, Andrew Swartz, Nahrain E. Kamber, Caroline Slone, Manesh N. Sekharan
Abstract: Polyolefin dispersions, froths, and foams and articles manufactured therefrom are disclosed. Also disclosed is a method for generating a thermoplastic foam from an aqueous dispersion. The aqueous dispersion may include a thermoplastic resin, water, and a stabilizing agent. The method may include adding at least one frothing surfactant to the aqueous dispersion to form a mixture, adding a flame retardant and/or a phase change material, frothing the mixture to create a froth, and removing at least a portion of the water to produce the foam.
Abstract: Composite membranes including a coating of polyalkylene oxide and biguanide compounds along with various methods for making and using the same. In one embodiment, the composite membrane comprises a thin film polyamide layer including a coating of a reaction product of a polyalkylene oxide compound and a biguanide-type compound. In another embodiment, the coating comprises a polymer including alkylene oxide repeating units and one or more biguanide functional groups.
Type:
Grant
Filed:
February 23, 2011
Date of Patent:
May 27, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
William E. Mickols, Chunming Zhang, Christopher T. Hamilton
Abstract: A pretreated titanium silicalite with MFI structure (TS-1) catalyst which has been pretreated with methanol, and then optionally filtered and optionally air-dried to form a pretreated activated TS-1 catalyst. The activated TS-1 may be used in an epoxidation reaction with no additional methanol added and has equivalent activity to TS-1 used with large excesses of methanol. By removing the need for additional methanol during the reaction, the losses of epichlorohydrin from solvolysis are minimized significantly.
Abstract: Compositions suitable for film comprise at least one ethylene/?-olefin interpolymer, wherein the ethylene/?-olefin interpolymer may have, for example, a Mw/Mn from about 1.7 to about 3.5, at least one melting point, Tm, in degrees Celsius, and a density, d, in grams/cubic centimeter, wherein the numerical values of Tm and d correspond to the relationship: Tm>?2002.9+4538.5(d)?2422.2(d)2.
Type:
Application
Filed:
January 16, 2014
Publication date:
May 22, 2014
Applicant:
Dow Global Technologies LLC
Inventors:
David W. Fuchs, Pradeep Jain, Mehmet Demirors, Pak-Meng Cham, Yunwa W. Cheung
Abstract: The present invention relates to a flexible polyurethane coating composition for application, preferably by spraying, to a substrate to protect and or improve the properties of the substrate. Specifically, the coating composition is a reactive polyurethane formulation which forms an elastomeric polyurethane coating with improved flammability properties. The reactive formulation comprises an A side comprising an isocyanate prepolymer with optional flame retardant compounds and a B side comprising a dispersion of red phosphorous, with optional additional flame retardant compounds, in an aromatic polyester polyol.
Abstract: The present invention generally relates to a process that polymerizes an olefin monomer, and a precatalyst and catalyst useful in such process.
Abstract: Aromatic polycyanate compounds which comprise cycloaliphatic moieties, a process for the production thereof and resins and thermoset products which are based on these compounds.
Type:
Grant
Filed:
March 9, 2009
Date of Patent:
May 20, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Michael J. Mullins, Robert E. Hefner, Jr., Ulrich Herold, Mark B. Wilson
Abstract: The present invention provides an ethylene-based polymer composition characterized by a Comonomer Distribution Constant in the range of from greater than 45 to less than 400, wherein the composition has less than 120 total unsaturation unit/1,000,000C, and method of producing the same.
Type:
Grant
Filed:
December 14, 2012
Date of Patent:
May 20, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Theresa J. Hermel-Davidock, Mehmet Demirors, Sarah M. Hayne, Rongjuan Cong
Abstract: Provided is a composition that is useful for textile processing, including for softening and providing smoothness to textiles The composition comprises an alkoxylate of the formula (I): wherein AO, EO, m, n, R. R1 and R2 are as defined below, and a polysiloxane oil.
Type:
Grant
Filed:
June 30, 2010
Date of Patent:
May 20, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Xiao Hua Wang, Wanglin Yu, Shawn J. Maynard
Abstract: A high pressure polymerization process to form an ethylene-based polymer comprises the steps of: A. Injecting a first feed comprising ethylene and optionally a chain transfer agent system (CTA system) into a first autoclave reactor zone operating at polymerization conditions to produce a first zone reaction product, the CTA system of the first reactor zone having a transfer activity Z1; and B. (1) Transferring at least part of the first zone reaction product to a second reactor zone selected from a second autoclave reactor zone or a tubular reactor zone and operating at polymerization conditions, and, optionally, (2) freshly injecting a second feed into the second reactor zone to produce a second zone reaction product, with the proviso that the second reactor zone contains a CTA system having a transfer activity Z2; and with the proviso that the ratio of Z1/Z2 is less than 1.
Type:
Grant
Filed:
December 14, 2010
Date of Patent:
May 20, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Otto J. Berbee, Cornelis Den Doelder, Egbert Nijhof, Mehmet Demirors, Sjoerd A. De Vries
Abstract: In a process for producing a particulate polysaccharide derivative by dry-grinding a moist polysaccharide derivative the median length of the particles after dry-grinding is controlled by controlling the moisture content of the polysaccharide derivative prior to dry-grinding. Advantageously the median length of the particles after dry-grinding is adjusted to a first value by a first moisture content of the polysaccharide derivative prior to dry-grinding and is adjusted to a second value by a second moisture content.
Type:
Grant
Filed:
August 31, 2010
Date of Patent:
May 20, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Yvonne M. Goerlach-Doht, Juergen Hermanns
Abstract: The invention is an adhesive composition comprising: a) an isocyanate functional polyether base prepolymers having a z molecular weight average (Mz) of about 10,000 to about 80,000 g/mole; a carbon black having an average oil absorption number of at least about 80 to at most about 400 cubic centimeters of dibutyl phthalate per 100 grams of the carbon black; (c) reactive silicon in an amount from about 0.001% to about 10% by weight of the adhesive composition; and (d) one or more catalysts for the reaction of isocyanate with hydroxyl groups. The adhesive compositions of the invention surprisingly may have improved sag performance (i.e., decreased sag) when heated, while also making them more easily pumped.
Type:
Grant
Filed:
April 25, 2011
Date of Patent:
May 20, 2014
Assignee:
Dow Global Technologies LLC
Inventors:
Gary L. Jialanella, Christopher P. Christenson, Valeriy V. Ginzburg, Toni Ristoski, Eric E. Cole, Sean C. Tobin, Lirong Zhou
Abstract: Cellulose ethers are described herein which are useful in food compositions. In these cellulose ethers the ether substituents are methyl groups, hydroxyalkyl groups, and optionally alkyl groups being different from methyl, the cellulose ether has a DS(methyl) of from 1.65 to 2.20, an MS(hydroxyalkyl) of from 0.10 to 1.00, and hydroxy groups of anhydroglucose units are substituted with methyl groups such that [s23/s26?0.2*MS(hydroxyalkyl)] is 0.35 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 3-positions of the anhydroglucose unit are substituted with methyl groups and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 6-positions of the anhydroglucose unit are substituted with methyl groups.
Type:
Application
Filed:
June 6, 2012
Publication date:
May 15, 2014
Applicant:
Dow Global Technologies LLC
Inventors:
Britta Huebner-Keese, Carol E. Mohler, Meinolf Brackhagen, Roland Adden, Robert L. Sammler, Jonathan D. Moore, Matthias Knarr
Abstract: The instant invention provides a polyethylene blend composition suitable for blown film, method of producing the same, and films made therefrom. The polyethylene blend composition suitable for blown film, according to the present invention, comprises the melt blending product of: (a) from 5 percent or less by weight of a first low density polyethylene (first LDPE) having a density in the range of from 0.915 to 0.935 g/cm3, and a melt index (I2) in the range of from greater than 0.8 to less than or equal to 5 g/10 minutes, and a molecular weight distribution (Mw/Mn) in the range of from 6 to 10; (b) from 5 to 50 percent by weight of a second low density polyethylene (second LDPE) having a density in the range of from 0.915 to 0.935 g/cm3, and a melt index (I2) in the range of from 0.
Type:
Application
Filed:
July 2, 2012
Publication date:
May 15, 2014
Applicants:
DCOMCO, INC., Dow Global Technologies LLC, The Dow Chemical Company
Inventors:
Lawrence J. Effler, Nilesh R. Savargaonkar, Teresa P. Karjala, Cristina Serrat, Jian Wang