Polyhydroxy Containing Patents (Class 568/623)
  • Publication number: 20150141512
    Abstract: Embodiments described herein provide a dialysate comprising a polyglycerol. The polyglycerol may be of a molecular weight between about 0.15 kDa and about 60 kDa. Also provided herein is the use of the dialysate as a diffusion agent and as an osmotic agent.
    Type: Application
    Filed: April 18, 2013
    Publication date: May 21, 2015
    Applicant: THE UNIVERSITY OF BRITISH COLUMBIA
    Inventors: Jayachandran Kizhakkedathu, Caigan Du, Gerald Da Roza, Asher Mendelson
  • Patent number: 9035105
    Abstract: A polyether polyol based on renewable materials is obtained by the in situ production of a polyether from a hydroxyl group-containing vegetable oil, at least one alkylene oxide and a low molecular weight polyol having at least 2 hydroxyl groups. The polyol is produced by introducing the hydroxyl group-containing vegetable oil, a catalyst and an alkylene oxide to a reactor and initiating the alkoxylation reaction. After the alkoxylation reaction has begun but before the reaction has been 20% completed, the low molecular weight polyol having at least 2 hydroxyl groups is continuously introduced into the reactor. After the in situ made polyether polyol product having the desired molecular weight has been formed, the in situ made polyether polyol is removed from the reactor. These polyether polyols are particularly suitable for the production of flexible polyurethane foams.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: May 19, 2015
    Assignee: Bayer MaterialScience LLC
    Inventors: Jack R. Reese, Stanley L. Hager, Micah Moore
  • Patent number: 8986400
    Abstract: The present disclosure relates to a method of converting glycerol into organic reaction products. The method may include mixing glycerol with a monohydric alcohol. The mixture of glycerol and monohydric alcohol is then reacted in the presence of a heterogeneous nano-structured catalyst, wherein the monohydric alcohol is present at subcritical/supercritical temperatures and pressures. This converts the glycerol into one or more reaction products, wherein the reaction products include an oxygenated organic reaction product. Ninety percent or greater of the glycerol is converted.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: March 24, 2015
    Assignee: Southwest Research Institute
    Inventors: Maoqi Feng, Chee-Kai Tan
  • Patent number: 8946485
    Abstract: Disclosed is branched poly(trimethylene ether) polyols prepared from the acid catalyzed polycondensation reaction of 1,3-propanediol, and at least one triol comonomer selected from 1,1,1-tris(hydroxymethyl)ethane and 1,1,1-tris(hydroxymethyl)propane. Also disclosed is a branched poly(trimethylene ether) polyol with an equivalent hydroxyl functionality of about 2.1 to about 3.2 and a Mn of about 200 to about 6000. The polyols are useful in the preparation of polyurethane rigid and flexible foams.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: February 3, 2015
    Assignee: E I du Pont de Nemours and Company
    Inventors: Gyorgyi Fenyvesi, Raja Hari Poladi, Hari Babu Sunkara
  • Patent number: 8884073
    Abstract: Provided are processes for preparing low molecular weight polytrimethylene ether glycol by acid catalyzed polycondensation, neutralization, removal of unreacted monomer, and contact with filter aid. The processes can avoid hydrolysis and yet provide product substantially free of catalyst derived end groups.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: November 11, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Edward Budi Muliawan, Raja Hari Poladi, Hari Babu Sunkara
  • Patent number: 8865945
    Abstract: The present invention provides polyols which can be obtained by a simple process. These polyols, unless explicitly specified, are to be understood to encompass both polyether polyols and polyether ester polyols. The invention further provides the simple process for the production of the polyols, and also, the production of polyurethanes comprising reacting a polyol according to the invention with a polyisocyanate.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: October 21, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Klaus Lorenz, Arnulf Werner, Marcus Eichmann
  • Publication number: 20140275633
    Abstract: Low molecular weight polyoxyalkylene polyether polyols having a hydroxyl content of from about 3.4 to about 12.1% by weight, and OH numbers of from about 112 to about 400 are produced by a continuous process using a DMC catalyst. In the process of the present invention, oxyalkylation conditions are established in a continuous reactor in the presence of a DMC catalyst; alkylene oxide and a low molecular weight starter are continuously introduced into the continuous reactor; a partially oxyalkylated polyether polyol is recovered from the reactor; and the recovered partially oxyalkylated polyether polyol is allowed to further reactor until the unreacted alkylene oxide content of the mixture is reduced to 0.001% or less by weight. The alkoxylation of the present invention must be carried out a pressure sufficiently high to prevent deactivation of the DMC catalyst. Pressures of from 45 to 55 psia are preferred.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventors: Jack Reese, Paul Webb
  • Publication number: 20140275313
    Abstract: This invention relates to a semi-batch process for the production of polyoxyalkylene polyether polyols. These polyoxyalkylene polyether polyols have hydroxyl (OH) numbers of from 112 to 400. This process comprises establishing oxyalkylation condition in a reactor in the presence of a DMC catalyst, continuously introducing alkylene oxide and a suitable starter into the reactor, and recovering an oxyalkyated polyether polyol. The oxyalkylation initially occurs at a temperature that is sufficiently high enough to avoid or prevent deactivation of the DMC catalyst, or for from 2% to 50% of the total oxide feed amount, and the oxyalkylation is then continued at a lower temperature.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Edward P. Brown, Jose Pazos
  • Patent number: 8822401
    Abstract: A water-soluble surfactant composition is provided comprising (A) a glycidyl ether-capped acetylenic diol ethoxylate and (B) a polyoxyalkylene alkyl ether having an HLB of 8-18. When compounded in inks and paper coatings, the surfactant composition exerts improved foam controlling, dispersing, wetting and penetrating capabilities, is water soluble, and complies with high-speed printing and application conditions.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: September 2, 2014
    Assignee: Nissin Chemical Industry Co., Ltd.
    Inventors: Toru Mizusaki, Ichiro Tanii
  • Publication number: 20140243768
    Abstract: An odor control layer for personal care products has a composition that has a PEG or PEG copolymer composition applied thereto. The layer can be placed in a personal care product, such as a diaper, training pant, absorbent under pant, adult incontinence product, or feminine hygiene product. Additional odor control layers may include silver nanoparticles and activated carbon compositions. In an alternative form, a single odor control layer includes the PEG composition and the activated carbon and/or silver nanoparticle compositions. A cleansing composition with PEG and possibly active carbon and silver nanoparticles may be combined with the personal care product to form a kit.
    Type: Application
    Filed: February 28, 2013
    Publication date: August 28, 2014
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: InYoung Sa, SiOn Choi, Matthew John Valaskey, HyoungKun Park, JungHyun Choi, John Gavin MacDonald
  • Patent number: 8801955
    Abstract: Disclosed are water-soluble nanoparticles. The water-soluble nanoparticles are each surrounded by a multifunctional group ligand including an adhesive region, a cross linking region, and a reactive region. In the water-soluble nanoparticles, the cross-linking region of the multifunctional group ligand is cross-linked with another cross-linking region of a neighboring multifunctional group ligand.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: August 12, 2014
    Assignee: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Jin-Woo Cheon, Young-Wook Jun, Jin-Sil Choi
  • Publication number: 20140220581
    Abstract: The present disclosure relates to buffers containing polyols for use with affinity-binding and/or magnetically susceptible thermoplastic particles and methods of making and use thereof.
    Type: Application
    Filed: January 31, 2014
    Publication date: August 7, 2014
    Applicant: CORNING INCORPORATED
    Inventors: Jinlin PENG, Thomas Mark LESLIE
  • Publication number: 20140206907
    Abstract: A method for preventing pressure build-up across a catalyst separation in a polyether polyol reactor comprising the steps of feeding reactants that comprise a monomer or co-monomers to be polymerized to form the polyether polyol into a continuous feed reactor, flowing the product stream through a catalyst separation system within the reactor, wherein the catalyst separation system is comprised of a plurality of filters, wherein each filter comprises an outer surface and an inner surface defined by a plurality of spaced-apart elements, and wherein the distance between the spaced-apart elements is smaller than the minor dimension of the suspended catalyst and recovering the filtered polyether polyol product and catalyst fines from the reactor outlet.
    Type: Application
    Filed: June 22, 2012
    Publication date: July 24, 2014
    Applicant: INVISTA North America S.a r.I.
    Inventors: Jason C. Gause, Gregg M. Sisler, Qun Sun
  • Publication number: 20140186679
    Abstract: A shape memory polymer material composition comprises: (1) a plurality of inorganic core nanoparticles as netpoints to which is connected; (2) a switching segment that comprises a polymer network. The polymer network comprises: (1) a corona component bonded to each inorganic core nanoparticle through a first chemical linkage; (2) a canopy component bonded to each corona component through a second chemical linkage; and (3) a plurality of cross-linking components cross-linking between different canopy components through a third chemical linkage. Given various selections for the inorganic core nanoparticles, the corona component, the canopy component, the cross-linking component, the first chemical linkage, the second chemical linkage and the third chemical linkage, various performance and composition characteristics of the shape memory polymer material compositions may be readily tailored.
    Type: Application
    Filed: May 4, 2012
    Publication date: July 3, 2014
    Applicant: CORNELL UNIVERSITY
    Inventors: Lynden A. Archer, Praveen Agarwal
  • Publication number: 20140142271
    Abstract: The present invention is directed to the synthesis of polyols in a continuous process which comprises the continuous generation of oligomeric polyoxyalkylene polyether polyol by acid catalysis.
    Type: Application
    Filed: July 3, 2012
    Publication date: May 22, 2014
    Applicant: REPSOL, S.A.
    Inventors: Beatriz Almena Munoz, Carlos Rubio Rodriguez, Felix Fernandez Villar
  • Patent number: 8716515
    Abstract: The present invention relates to a process for the preparation of polyether ester polyols starting from fatty acid esters and starter compounds having Zerewitinoff-active hydrogen atoms, and to their use in the production of solid or foamed polyurethane materials.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: May 6, 2014
    Assignee: Bayer MaterialScience AG
    Inventors: Klaus Lorenz, Reinhard Albers, Frank Otto
  • Patent number: 8704005
    Abstract: Methods are provided for making polyglycerol. The methods include heating glycerol at reduced pressure in the absence of a glyceride and in the presence of a catalytic amount of an acid selected from the group consisting of sulfuric acid, triflic acid, hydrochloric acid, hexafluorophosphoric acid, tetrafluoroboric acid and mixtures thereof.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: April 22, 2014
    Assignee: University of Ottawa
    Inventors: Marc Dube, Somaieh Salehpour
  • Patent number: 8703684
    Abstract: Provided is a water-based lubricant comprising a hyperbranch-type polyglycerol having an absolute molecular weight of from 5,000 to 500,000. The water-based lubricant has a small friction coefficient and is excellent in lubrication performance and defoamability, as compared with conventional water-based lubricants comprising an ethylene/propylene oxide copolymer, and is favorable, for example, for a water-based metal processing agent and a hydraulic pressure fluid.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: April 22, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Toyoji Kakuchi, Toshifumi Satoh, Ryosuke Sakai, Fumiaki Takagi, Masami Yamanaka
  • Publication number: 20140100289
    Abstract: To achieve, an in vivo repair of injured mammalian nerve tissue, an effective amount of a biomembrane fusion agent is administered to the injured nerve tissue. The application of the biomembrane fusion agent may be performed by directly contacting the agent with the nerve tissue at the site of the injury. Alternatively, the biomembrane fusion agent is delivered to the site of the injury through the blood supply after administration of the biomembrane fusion agent to the patient. The administration is preferably by parenteral administration including including intravascular, intramuscular, subcutaneous, or intraperitoneal injection of an effective quantity of the biomembrane fusion agent so that an effective amount is delivered to the site of the nerve tissue injury.
    Type: Application
    Filed: June 7, 2013
    Publication date: April 10, 2014
    Inventors: RIYI SHI, RICHARD B. BORGENS
  • Patent number: 8692030
    Abstract: A method of making a biobased-petrochemical hybrid polyol is provided. This method includes reacting a cyclic ether with a vegetable oil-based polyol in the presence of a cationic catalyst or a coordinative catalyst that includes a vegetable oil-based polyol ligand to form the biobased-petrochemical hybrid polyol. The biobased-petrochemical hybrid polyol that is created has a number average molecular weight of about 3,000 to about 6,000 and has a structure that is about 22% to about 36% biobased. In one aspect of the present invention, the cyclic ether is propylene oxide, and the propoxylated polyol formed from the propylene oxide and vegetable oil-based polyol is then reacted with ethylene oxide in the presence of a superacid catalyst to create a block copolymer with a terminal polyethylene oxide block having a high percentage of terminal primary hydroxyl groups.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: April 8, 2014
    Assignee: Pittsburg State University
    Inventors: Mihail Ionescu, Zoran S. Petrovic, Ivan Javni
  • Publication number: 20140057993
    Abstract: In accordance with the present invention, methods are provided for the prevention and/or treatment of enteropathogenic bacterial infection in the gastrointestinal tract of a subject, and the diarrhea associated with the infection, by administration to the subject of a low molecular weight polyethylene glycol, as well concurrent administration with other antibiotic and antidiarrheal agents. Methods for reduction or suppression of inflammation, and inhibition of ?1-integrin expression in the gastrointestinal mucosa are also provided. Also described is a kit suitable for use with the methods disclosed.
    Type: Application
    Filed: April 27, 2012
    Publication date: February 27, 2014
    Applicant: NORTHSHORE UNIVERSITY HEALTHSYSTEM
    Inventors: Suzana Savkovic, Hemant K. Roy
  • Publication number: 20130345476
    Abstract: This invention relates to an improved continuous process for the production of low molecular weight polyoxyalkylene polyether polyols. These polyoxyalkylene polyether polyols have a hydroxyl content of from about 3.4 to about 12.1% by weight, and may also be characterized as having an OH number of from about 112 to about 400. The process comprises establishing oxyalkylation conditions in a continuous reactor in the presence of a DMC catalyst; continuously introducing alkylene oxide and a low molecular weight starter into the continuous reactor; recovering a partially oxyalkylated polyether polyol from the reactor; and allowing the recovered partially oxyalkylated polyether polyol to further reactor until the unreacted alkylene oxide content of the mixture is reduced to 0.001% or less by weight.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 26, 2013
    Applicant: Bayer MaterialScience LLC
    Inventor: Jack R. Reese
  • Publication number: 20130338331
    Abstract: The invention relates to methods for the preparation of polyether polyols by DMC-catalysed alkylene oxide addition to starter compounds comprising acidic sulfuric acid salts, to the use thereof for the preparation of polyurethanes, and to polyurethanes comprising the polyether polyols according to the invention.
    Type: Application
    Filed: December 19, 2011
    Publication date: December 19, 2013
    Applicant: Bayer Materialscience AG
    Inventors: Klaus Lorenz, Joerg Hofmann
  • Publication number: 20130331614
    Abstract: The present invention provides a process for the preparation of a polyether polyol, said process comprising polymerising one or more alkylene oxides in the presence of a multimetal cyanide complex catalyst and an initiator compound, wherein the process is carried out in a reactor vessel equipped with means for agitating its contents and the one or more alkylene oxides are supplied to an agitated mixture comprising the multimetal cyanide complex catalyst and the initiator via a feed inlet device, said feed inlet device comprising a sparger. The present invention also provides a reactor system for the preparation of polyols.
    Type: Application
    Filed: February 23, 2012
    Publication date: December 12, 2013
    Inventors: Michiel Barend Eleveld, Wouter Koen Harteveld, Cornelis Hyacinthus Maria Van Der Hulst
  • Patent number: 8598391
    Abstract: Processes for reducing the color of polytrimethylene ether glycol or copolymers thereof are provided. The processes include polycondensing diols in the presence of an acid catalyst and adding base continuously over a period of the polycondensation reaction. The invention also relates to the polytrimethylene ether glycol thereof produced by these processes.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: December 3, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Aaron Minter, Edward R. Murphy, Howard C. Ng, Rupert Spence, Tuyu Xie
  • Patent number: 8530602
    Abstract: A polyether polyol composition comprising: a polyether polyol, a phosphoric acid compound selected from the group consisting of at least one of orthophosphoric acid, polyphosphoric acid, polymetaphosphoric acid, and partial esters thereof in an amount raning from 0.5 to 100 ppm based on the polyether polyol metals derived from a composite metal cyanide complex catalyst in an amount ranging from 1 to 30 ppm based on the polyether polyol; a method for producing this polyether polyol composition; and methods of making polyurethane or isocyanate group-terminated prepolymers.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: September 10, 2013
    Assignee: Asahi Glass Company, Limited
    Inventors: Chitoshi Suzuki, Hiroki Fukuda, Shigeru Ikai
  • Patent number: 8501998
    Abstract: A method for producing a polyoxyalkylene derivative represented by the following general formula (1): Z(OA)n-OH]m??(1) wherein Z is a residue of glycerin or diglycerin, OA is an oxyalkylene group having 2 to 4 carbon atoms, n is an average number of moles of the oxyalkylene group added and is 80 to 800, and m is 3 to 4, the method comprising steps (A), (B), (C), (D), (E), and (F) defined in the present description.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: August 6, 2013
    Assignee: NOF Corporation
    Inventors: Satoshi Matsuo, Kazuhiro Hashimoto, Ken-ichiro Nakamoto, Chika Itoh
  • Patent number: 8481788
    Abstract: The present invention aims to provide a method for producing a polyalkylene oxide, which is capable of improving reduction in reactivity of a double metal cyanide complex catalyst in the case that a low molecular weight initiator is used, and producing the polyalkylene oxide with high productivity at low cost. The method for producing a polyalkylene oxide comprises carrying out a ring-opening addition reaction of an alkylene oxide with an initiator having at least one hydroxy group and having a molecular weight of not more than 300 per hydroxy group in the presence of a double metal cyanide complex catalyst in an organic solvent, wherein the organic solvent is used in an amount of 500 to 1,500 parts by weight relative to 100 parts by weight of the alkylene oxide used at the start of the reaction.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: July 9, 2013
    Assignee: Kaneka Corporation
    Inventors: Hidetoshi Odaka, Takuya Maeda, Kiyotaka Bito, Michihide Homma
  • Publication number: 20130143909
    Abstract: Among other aspects, provided herein is a mixed-acid salt of a water-soluble polymer-drug conjugate, along with related methods of making and using the same. The mixed-salt acid salt is stably formed, and appears to be more resistant to hydrolytic degradation than the corresponding predominantly pure acid salt or free base forms of the polymer-drug conjugate. The mixed acid salt is reproducibly prepared and recovered, and provides surprising advantages over non-mixed acid salt forms of the water-soluble polymer drug conjugate.
    Type: Application
    Filed: November 18, 2010
    Publication date: June 6, 2013
    Applicant: Nektar Therapeutics
    Inventors: Anthony O. Chong, Seoju Lee, Bhalchandra V. Joshi, Brian Bray, Shaoyong Nie, Patrick L. Spence, Antoni Kozlowski, Samuel P. McManus, Sachin Tipnis, Greg Lavaty, David Swallow, John R. Handley, Anthony G. Schaefer
  • Publication number: 20130131389
    Abstract: What is proposed is a process for preparing polyether alcohols by conversion of the following reactants: a) one or more alkylene oxides and optionally carbon dioxide and b) one or more H-functional starter substances, in the presence of a catalyst, to form a liquid reaction mixture, in a reaction unit (1), which is characterized in that the reaction unit (1) has internals (2) which form a multitude of microstructured flow channels which bring about multiple splitting of the liquid reaction mixture into component flow paths and recombination thereof in altered arrangement, the multiple splitting and recombination being repeated several times and the microstructured flow channels having a characteristic dimension which is defined as the greatest possible distance of any particle in the liquid reaction mixture from the wall of a flow channel closest to the particle, in the range from 20 to 10 000 ?m, the result being that the flow profile of the liquid reaction mixture approximates to ideal plug flow as a result
    Type: Application
    Filed: August 8, 2011
    Publication date: May 23, 2013
    Applicant: BASF SE
    Inventors: Achim Loeffler, Michael Stoesser, Wolfgang Loth, Ralf Boehling, Sirus Zarbakhsh
  • Publication number: 20130098550
    Abstract: A method for adhering a medical device to biological tissue includes adhering an adhesive composition having a plurality of reactive members of a specific binding pair to tissue which has a plurality of complementary reactive members of the specific binding pair via click chemistry.
    Type: Application
    Filed: March 24, 2011
    Publication date: April 25, 2013
    Applicant: COVIDIEN LP
    Inventors: Tim Sargeant, Robert Ahmad Hadba, Joshua Stopek
  • Patent number: 8378144
    Abstract: A process for preparing polyoxymethylene homopolymers or copolymers (7) by homopolymerization or copolymerization of trioxane, starting from methanol (1), in which methanol (1) is oxidized in a first reactor in a first production plant (A) to give an aqueous formaldehyde-comprising stream (2) which is fed to a second production plant (B) in which pure trioxane (6) is obtained and removal of low boilers (5) by distillation is carried out and the pure trioxane (6) is fed to a third production plant (C) in which it is homopolymerized or copolymerized to form polyoxymethylene homopolymers or copolymers (7), wherein the low boiler stream (5) from the low boiler removal column (K 2) is recycled to the feed stream into the first reactor in the first production plant (A), is proposed.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: February 19, 2013
    Assignee: BASF SE
    Inventors: Markus Siegert, Tobias Kortekamp, Eckhard Stroefer, Christoph Sigwart, Neven Lang
  • Publication number: 20130040874
    Abstract: Certain branched hydroxyalkyl polyoxylene glycol ethers exhibit excellent characteristics as defoamers or foam-suppressing additives or as foam regulators for aqueous media that contain foaming agents, even at temperatures of 25° C. and below. Therefore, said branched hydroxyalkyl polyoxylene glycol ethers can be used in detergents and cleaning agents.
    Type: Application
    Filed: January 29, 2011
    Publication date: February 14, 2013
    Applicant: Cognis IP Management GmbH
    Inventors: Hans-Christian Raths, Sabine Both, Frederic Bauer, Manfred Weuthen
  • Patent number: 8367876
    Abstract: A method wherein the separability between a polyether phase and a water phase is improved when a water-soluble compound is extracted and removed from a polyether containing the water-soluble compound with water is provided. The method comprises producing a polyether including a step of extracting and removing a water-soluble compound from a polyether containing the water-soluble compound with water, wherein the step includes at least an operation of separating a water phase from a polyether phase at a temperature of 50° C.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: February 5, 2013
    Assignee: Kaneka Corporation
    Inventor: Takeshi Kawamura
  • Patent number: 8362304
    Abstract: Glycol ether compositions useful for metal recovery by froth flotation and processes for making the compositions are disclosed. In one process, dipropylene glycol methyl ether (DPM) is propoxylated to give a composition comprising 4 to 15 wt. % of DPM and at least 20 wt. % of tripropylene glycol methyl ether (TPM). In another process, the glycol ether composition is made from a distillation residue which comprises DPM, TPM, and a basic catalyst. Extraction of the residue with water to remove some of the basic catalyst is followed by propoxylated to give a composition which comprises less than 15 wt. % of DPM, at least 20 wt. % of TPM, and one or more PO-based glycols. In comparative froth tests, glycol ether compositions of the invention meet or exceed the performance of commercial frothers.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: January 29, 2013
    Assignee: Lyondell Chemical Technology, L.P.
    Inventors: Farhad Fadakar, Adam Chan
  • Publication number: 20130020526
    Abstract: Disclosed are water-soluble nanoparticles. The water-soluble nanoparticles are each surrounded by a multifunctional group ligand including an adhesive region, a cross linking region, and a reactive region. In the water-soluble nanoparticles, the cross-linking region of the multifunctional group ligand is cross-linked with another cross-linking region of a neighboring multifunctional group ligand.
    Type: Application
    Filed: July 16, 2012
    Publication date: January 24, 2013
    Applicant: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Jin-Woo CHEON, Young-Wook JUN, Jin-Sil CHOI
  • Patent number: 8350078
    Abstract: The present invention relates to processes for the production of sterically hindered diol ethers and diacyl ethers of formula
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: January 8, 2013
    Assignee: The Research Foundation of State University of New York
    Inventors: Robert L. Brainard, Brian Cardineau
  • Patent number: 8344098
    Abstract: Processes for producing polytrimethylene ether glycol and copolymers thereof are provided wherein, by condensing and recycling at least a portion of the vapor phase produced as the reaction progresses, the yield loss and polymer color are reduced.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: January 1, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Christian Hoffmann, Scott Christopher Jackson, Edward R. Murphy, Bhuma Rajagopalan
  • Patent number: 8317900
    Abstract: The invention relates to a method for producing membrane, in particular gas separation membrane, wherein the membrane comprises a selective separating layer. The following steps are carried out: a) a polymer solution is produced from at least one polymer and at least one polyglycol ether, b) the polymer solution is cast into a film, c) in a further step, the selective separating layer is produced from the film, preferably by drying. The invention, among other things, further relates to a membrane, in particular gas separation membrane, comprising a selective separating layer.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: November 27, 2012
    Assignee: Helmholtz-Zentrum Geesthacht Zentrum fur Material-und Kustenforschung GmbH
    Inventors: Klaus-Viktor Peinemann, Grete Johannsen, Wilfredo Yave Rios, Anja Car
  • Publication number: 20120294813
    Abstract: The invention relates to highly functional, aliphatic, branched polyethers produced from oxiranes, in particular ethylene oxide and glycidol or the sulfur- or nitrogen-containing analogues thereof. The branched polyethers are in particular suited as a matrix for pharmacological and cosmetic active agents.
    Type: Application
    Filed: December 10, 2010
    Publication date: November 22, 2012
    Inventors: Holger Frey, Daniel Wilms, Frederik Wurm
  • Publication number: 20120283483
    Abstract: Polyether polyols having equivalent weights of up to 500 are continuously prepared in the presence of a double metal cyanide catalyst. A first step of the reaction is performed at a temperature of at least 1500 C, while controlling the hydroxyl content and unreacted alkylene oxide content of the reaction mixture to within certain ranges. A portion of that reaction mixture is withdrawn and permitted to react non-isothermally to consume the unreacted alkylene oxide. This process is highly efficient, does not result in catalyst deactivation, as is commonly seen in previous processes, and does not produce a significant ultra high molecular weight tail.
    Type: Application
    Filed: December 6, 2010
    Publication date: November 8, 2012
    Inventors: John W. Weston, Carlos M. Villa, Jean-Paul Masy, Kevin C. Seavey
  • Publication number: 20120277478
    Abstract: Provided are processes for preparing low molecular weight polytrimethylene ether glycol by acid catalyzed polycondensation, neutralization, removal of unreacted monomer, and contact with filter aid. The processes can avoid hydrolysis and yet provide product substantially free of catalyst derived end groups.
    Type: Application
    Filed: April 23, 2012
    Publication date: November 1, 2012
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: EDWARD BUDI MULIAWAN, RAJA HARI POLADI, HARI BABU SUNKARA
  • Patent number: 8293866
    Abstract: The present invention relates to a method of producing a poly(ethylene oxide) copolymerized with one alkylene oxide and to a poly(ethylene oxide-co-alkylene oxide) copolymer produced by such method, a photovoltaic device containing such poly(ethylene oxide-co-alkylene oxide)-copolymer, and to uses of such poly(ethylene oxide)-(alkylene oxide)-copolymer.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: October 23, 2012
    Assignee: Sony Deutschland GmbH
    Inventors: Gabriele Nelles, Silvia Rosselli, Tzenka Miteva, Akio Yasuda, Christo Tsvetanov, Rayna Stamenova, Iliyana Berlinova, Petar Petrov
  • Publication number: 20120225964
    Abstract: Disclosed is branched poly(trimethylene ether)polyols prepared from the acid catalyzed polycondensation reaction of 1,3-propanediol, and at least one triol comonomer selected from 1,1,1-tris(hydroxymethyl)ethane and 1,1,1-tris(hydroxymethyl)propane. Also disclosed is a branched poly(trimethylene ether)polyol with an equivalent hydroxyl functionality of about 2.1 to about 3.2 and a Mn of about 200 to about 6000. The polyols are useful in the preparation of polyurethane rigid and flexible foams.
    Type: Application
    Filed: August 29, 2011
    Publication date: September 6, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Gyorgyi Fenyvesi, Raja Hari Poladi, Hari Babu Sunkara
  • Patent number: 8247526
    Abstract: Polyalkylene ether glycol or copolymer thereof are prepared by contacting at least one alkanediol with a alkanediol containing cyclic sulfate.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: August 21, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Aaron Minter, Edward R. Murphy, James M. Tocyloski
  • Patent number: 8236869
    Abstract: Highly-functionalized, low-viscosity polyether polyols are obtained by dehydration condensation reaction of alcohols. The polyether polyols are obtained by dehydration condensation of glycerin and monohydric and/or dihydric alcohol with the glycerin percentage being more than 50 mol % relative to 100 mol % of the total of the glycerin and alcohol. The glycerin may be crude glycerin obtained by hydrolysis or alcoholysis of natural fat and oils.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: August 7, 2012
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Atsushi Miyata, Tomoki Tsutsui, Nobuhito Koga, Shinsuke Matsumoto, Kazuhiko Ohkubo
  • Publication number: 20120178829
    Abstract: The instant invention pertains to novel bi- or tricyclic sterically hindered alkoxyamines, their precursors, a process for their preparation and their use as light stabilizers for polymers or coatings, as flame retardants, as peroxide substitutes (rheology modifiers) or carbon radical scavengers.
    Type: Application
    Filed: August 3, 2010
    Publication date: July 12, 2012
    Applicant: BASF SE
    Inventors: Stefan Hauck, Walter Fischer, Kai-Uwe Schoening
  • Publication number: 20120171728
    Abstract: Disclosed is a process for amplifying DNA, a process for preparing and amplifying DNA, a kit of parts for DNA amplification and DNA preparation, and the use thereof, all of which are characterized by the use of tetraethylene glycol. Moreover, the use of tetraethylene glycol in a reaction solution by carrying out a DNA amplification and a reaction solution containing tetraethylene glycol for carrying out a DNA amplification are disclosed.
    Type: Application
    Filed: June 15, 2010
    Publication date: July 5, 2012
    Applicant: QIAGEN GmbH
    Inventors: Andy Wende, Hans Robert Attig, Ralf Himmelreich
  • Publication number: 20120108780
    Abstract: A method for producing a polyol, the method including: (a) reacting at least one selected from the group consisting of an unsaturated natural fat, an unsaturated natural fatty acid, and a fatty acid ester with dinitrogen monoxide, to obtain a first intermediate; (b) reacting the first intermediate with a hydrogenation reagent, to obtain a second intermediate; (c) reacting the second intermediate with at least one alkylene oxide, to obtain a polyol.
    Type: Application
    Filed: July 9, 2010
    Publication date: May 3, 2012
    Applicant: BASF SE
    Inventors: Andreas Kunst, Michael Schelper, Joaquim Henrique Teles, Berend Eling, Jenny Reuber, Gerd-Dieter Tebben
  • Publication number: 20120078017
    Abstract: The present invention provides methods of protecting irradiated eukaryotic cells such as irradiated mammalian epithelial cells, from the deleterious effect of microbial pathogens such as Pseudomonas aeruginosa. The invention also provides methods of protecting irradiated organisms from such deleterious effects, resulting in reduced mortality and morbidity. Further provided are kits containing relatively high molecular weight biocompatible polymers such as polyethylene glycol, optionally supplemented with a protective polymer such as dextran and/or essential pathogen nutrients such as L-glutamine, along with instructions for administration to organisms to be exposed to radiation.
    Type: Application
    Filed: March 23, 2010
    Publication date: March 29, 2012
    Inventors: John C. Alverdy, Olga Zaborina