Abstract: The present invention relates to methods of treatment of inflammatory conditions using S-[4-(3-fluoro-3-methylbutyryloxy)-but-2-ynyl]6?,9?-difluoro-17?-(furan-2-yl)carbonyloxy-11?-hydroxy-16?-methyl-3-oxoandrosta-1,4-diene-17?-carbothioate (compound of formula I), a novel anti-inflammatory compound of the androstane series and its processes of preparation.
Abstract: Systems and processes for performing solid phase peptide synthesis are generally described. Solid phase peptide synthesis is a known process in which amino acid residues are added to peptides that have been immobilized on a solid support. In certain embodiments, the inventive systems and methods can be used to perform solid phase peptide synthesis quickly while maintaining high yields. Certain embodiments relate to processes and systems that may be used to heat, transport, and/or mix reagents in ways that reduce the amount of time required to perform solid phase peptide synthesis.
Type:
Application
Filed:
September 14, 2015
Publication date:
April 14, 2016
Applicant:
Massachusetts Institute of Technology
Inventors:
Mark David Simon, Bradley L. Pentelute, Andrea Adamo, Patrick Louis Heider, Klavs F. Jensen
Abstract: Novel inhibitors of IAP that are useful as therapeutic agents for treating malignancies and have the general formula I: wherein R1, R2, R3, R4, R5 and R6 are as described herein.
Type:
Application
Filed:
December 18, 2015
Publication date:
April 14, 2016
Applicant:
GENENTECH, INC.
Inventors:
Frederick COHEN, Lewis J. GAZZARD, Vickie Hsiao-Wei TSUI, John A. FLYGARE
Abstract: The present invention is directed compositions for targeted delivery of RNA interference (RNAi) polynucleotides to cell in vivo. The pharmacokinetic modulator improve in vivo targeting compared to the targeting ligand alone. Targeting ligand-pharmacokinetic modulator targeting moiety targeted RNAi polynucleotides can be administered in vivo alone or together with co-targeted delivery polymers.
Type:
Application
Filed:
December 17, 2015
Publication date:
April 14, 2016
Inventors:
Philipp Hadwiger, Torsten Hoffmann, Eric A Kitas, Peter Mohr, Ingo Roehl, Linda Valis, David B Rozema, David L Lewis, Darren H Wakefield
Abstract: The present invention relates to the ability of specialized non-naturally occurring peptides to bind to sodium channels and inhibit activation of the sodium channels. The invention further relates to methods for regulating of sodium absorption and fluid volume and treating disorders responsive to modulating sodium absorption by modulating the binding of specialized non-naturally occurring peptides to sodium channels.
Abstract: The present disclosure provides novel macrocyclic peptides which inhibit the PD-1/PD-L1 and PD-L1/CD80 protein/protein interaction, and thus are useful for the amelioration of various diseases, including cancer and infectious diseases.
Type:
Application
Filed:
October 5, 2015
Publication date:
April 14, 2016
Inventors:
Li-Qiang Sun, Qian Zhao, Eric Mull, Eric P. Gillis, Paul Michael Scola
Abstract: Described are stable pre-fusion respiratory syncitial virus (RSV) F polypeptides, immunogenic compositions comprising the polypeptides and uses thereof for the prevention and/or treatment of RSV infection.
Type:
Application
Filed:
April 24, 2014
Publication date:
April 14, 2016
Inventors:
Johannes Petrus Maria Langedijk, Anders Krarup
Abstract: The present invention relates to DNA sequences encoding Vmp-like polypeptides of pathogenic Borrelia, the use of the DNA sequences in recombinant vectors to express polypeptides, the encoded amino acid sequences, application of the DNA and amino acid sequences to the production of polypeptides as antigens for immunoprophylaxis, immunotherapy, and immunodiagnosis. Also disclosed are the use of the nucleic acid sequences as probes or primers for the detection of organisms causing Lyme disease, relapsing fever, or related disorders, and kits designed to facilitate methods of using the described polypeptides, DNA segments and antibodies.
Abstract: A method of producing synthetic spider silk, including: transforming Escherichia coli with an expression vector; fermenting the transformed E. coli in a culture medium; inducing spider silk protein expression in the cultured E. coli; extracting the spider silk; and purifying the spider silk. Related vectors and genetically modified cells are also disclosed.
Type:
Application
Filed:
October 8, 2015
Publication date:
April 14, 2016
Inventors:
Randolph V. Lewis, Dong Chen, Justin A. Jones, Sreevidhya T. Krishnaji, Paula F. Oliveira, Gargi Bhattacharyya
Abstract: The expression of a mRNA encoding a putative 76 amino acid, secreted protein (“Enho1”) was found to negatively correlate with fasting triglyceride and cholesterol levels. A recombinant adenovirus was used to increase the expression of Enho1 mRNA in two mouse models of obesity, KK-Ay and Lepob/Lepob mice. Over-expression of Enho1 by adenovirus injection significantly, and reproducibly, reduced fasting triglyceride and cholesterol levels in both models. In addition, transgenic mice strains were made that over express Enho1 protein. Additionally, the expression of a key gene involved in lipogenesis (fatty acid synthase) and FAS protein levels were reduced by ENHO1 adenoviral treatment in Lepob/Lepob mice.
Type:
Application
Filed:
October 26, 2015
Publication date:
April 14, 2016
Applicant:
Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
Abstract: An immunomodulatory fusion protein (IFP) for converting pro-inflammatory M macrophages to anti-inflammatory M2 like phenotypes of macrophagesthe IFP having at least one component A and at least one component B wherein the component A is comprising or consisting of a binding domain for extra-cellular surface structures of a macrophage that internalizes said immunomodulatory fusion protein upon binding of component A of said immunomodulatory fusion protein, and the component B is modulating the macrophage and comprises or consists of a DNA oligonucleotide or RNA oligonucleotide or a chemical small molecule exhibiting modulatory functions to targeted macrophages or a polypeptide which amino acid sequence comprises or consists of a macrophage modulatory protein or comprises or consists of at least a partial sequence of the macrophage modulatory protein, the partial sequence having maintained the modulatory function of the macrophage modulatory protein.
Type:
Application
Filed:
May 27, 2014
Publication date:
April 14, 2016
Inventors:
Theophilus Thepen, Dmitrij Hristodorov, Radoslav Mladenov, Stefan Barth
Abstract: The present invention provides for nucleic acids improved for the expression of interleukin-15 (IL-15) in mammalian cells. The invention further provides for methods of expressing IL-15 in mammalian cells by transfecting the cell with a nucleic acid sequence encoding an improved IL-15 sequence. The present invention further provides expression vectors, and IL-15 and IL-15 receptor alpha combinations (nucleic acid and protein) that increase IL-15 stability and potency in vitro and in vivo. The present methods are useful for the increased bioavailability and biological effects of IL-15 after DNA, RNA or protein administration in a subject (e.g. a mammal, a human).
Abstract: Described herein are recombinant integral membrane proteins having multiple transmembrane domains that have been engineered to be less hydrophobic, through alteration of the amino acid sequence of the native protein, but retain the ability to bind their natural ligand. The decreased hydrophobicity of the described proteins makes them more water soluble than the native protein, which allows the described proteins to be expressed in bacteria in large quantities and isolated in the absence of membranes, all while retaining the ability to interact with known ligands.
Type:
Application
Filed:
April 25, 2014
Publication date:
April 14, 2016
Applicant:
THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA
Inventors:
Renyu LIU, Jeffery G. SAVEN, Jose Manuel PEREZ-AGUILAR, Felipe MATSUNAGA, Jin XI
Abstract: The present invention discloses cryopreserved recombinant cells for screening drug candidates that transiently overexpress one or more drug transporter proteins and/or drug metabolizing enzymes. Advantageously, such cells provide a cost-efficient consumable product that streamlines the process of screening whether drug candidates are substrates or inhibitors of drug transporter proteins and/or drug metabolizing enzymes.
Abstract: The present invention provides, in particular embodiments, for modified recombinant T cell receptor (TCR) ligands (RTLs) comprising a MHC class I or MHC class II component. The modified RTLs have redesigned surface features that preclude or reduce aggregation, wherein the modified molecules retain the ability to bind Ag-peptides, target antigen-specific T cells, inhibit T cell proliferation in an Ag-specific manner and have utility to treat, inter alia, autoimmune disease and other conditions mediated by antigen-specific T cells in vivo.
Type:
Application
Filed:
December 17, 2015
Publication date:
April 14, 2016
Inventors:
Gregory G. Burrows, Arthur A. Vandenbark
Abstract: In one aspect, present invention provides a recombinant mutant human factor VIII having increased expression and/or secretion as compared to wild-type factor VIII. In certain embodiments, the recombinant factor VIII includes one or more amino acid substitution(s) selected from the group consisting of I86, Y105, A108, D115, Q117, F129, G132, H134, M147 and L152. In other aspects, the present invention provides FVIII encoding nucleic acids, FVIII-expression vectors, as well as methods of using the modified FVIII genes in the treatment of FVIII deficiencies, such as hemophilia A.
Abstract: Degradable bioprostheses made of collagen-based material having amine-based and ester-based crosslinks are provided, as are methods for their formation and use. Some embodiments of the present invention are directed towards a method of controlling the ratio of amine-based crosslinks to ester-based crosslinks within a collagen-based material to provide a tailorably crosslinked collagen-based material. Some embodiments provide a method of making a degradable bioprosthesis involving controlling crosslinking to afford a degradable bioprosthesis that is partially crosslinked. By controlling the ratio of amine-based to ester-based crosslinks, by controlling the level of crosslinking, or by controlling both of these features, degradable bioprostheses with tailored degradation rates can be synthesized. Some embodiments of degradable bioprostheses have degradation rates that are tailored to allow their use in particular medical applications.
Abstract: Provided herein are heteromultimer constructs with reduced or silenced effector function. In an embodiment is provided a heteromultimer construct comprising an IgG Fc construct having a first and a second Fc polypeptide, each Fc polypeptide comprising a modified lower hinge region wherein: the modified lower hinge region of said first Fc polypeptide comprises at least one amino acid modification, the modified lower hinge region of said second Fc polypeptide comprises at least one amino acid modification which is different from at least one amino acid modification of said first Fc polypeptide, and the IgG Fc construct displays reduced binding to all Fc? receptors and to C1q protein as compared to a corresponding parent IgG Fc construct. Also provided are methods of producing such heteromultimer constructs, and methods of reducing ADCC for an antibody construct by reducing effector function.
Abstract: Isolated VHH monoclonal antibodies are disclosed that specifically bind to a Norovirus polypeptide. In some embodiments, the Norovirus is a Genogroup I Norovirus or a Genogroup II Norovirus. In other embodiments, the Norovirus is Norwalk or MD2004 virus. In some embodiments, the monoclonal antibodies specifically bind VP1. Also disclosed are compositions including the disclosed antibodies, nucleic acids encoding these antibodies, expression vectors including the nucleic acids, and isolated host cells that express the nucleic acids. The antibodies and compositions disclosed herein can be used for detecting the presence of a Norovirus in a biological sample, or detecting a Norovirus infection. Also disclosed are methods of treating and/or preventing a NoV infection.
Type:
Application
Filed:
May 9, 2014
Publication date:
April 14, 2016
Applicants:
THE UNITED STATES OF AMERICA, as represented by the Secretary, Dept. of Health and Human Services, INSTITUTO NACIONAL DE TECNOLOGIA AGROPECUARIA
Inventors:
Karin Bok, Lorena Laura Garaicoechea, Viviana Parreno, Andrea Pamela Aguilar, Marina Bok, Lisbeth Kim Green, Stanislav Vladimirovich Sosnovtsev
Abstract: An anti-HIV-1 spike composition includes a first anti-HIV-1 antibody Fab and a second anti-HIV-1 antibody Fab linked by a DNA or protein linker molecule to form a crosslinked homo-diFab or hetero-diFab having improved viral potency and neutralization. The anti-HIV-1 antibody Fabs include anti-gp120 CD4, anti-gp120 V1V2, anti-gp120 V3, and anti-gp41.
Type:
Application
Filed:
September 30, 2015
Publication date:
April 14, 2016
Inventors:
Pamela J. Bjorkman, Rachel P. Galimidi, Anthony P. West, Michel C. Nussenzweig
Abstract: A method of treating tau pathologies, such as Alzheimer's disease, involving the administration of antibodies specific to the amino terminal region of human tau (amino acid residues 6-18 or 184-195) to provide passive immunization. The administration of such antibodies can reduce total tau levels, decrease tau hyperphosphorylation, and improve reference memory. Passive immunization with antibodies targeting the N-terminal projection domain of tau reduces both total and hyperphosphorylated tau was found effective in aged 3×Tg-AD mice, a generally accepted mouse model of Alzheimer's disease and frontotemporal dementia in humans.
Type:
Application
Filed:
October 12, 2015
Publication date:
April 14, 2016
Applicant:
THE RESEARCH FOUNDATION FOR MENTAL HYGIENE, INC.
Abstract: Provided is a means for inhibiting a function of CD69, whereby allowing suppression of an inflammatory response. That is, provided are: a composition for treating an inflammatory disease which includes an antibody that specifically recognizes a myosin regulatory light chain polypeptide (hereinafter abbreviated as Myl), preferably Myl9, Myl12a, and Myl12b, and inhibits a result of an effect of coexistence of Myl with CD69; a method of treating an inflammatory disease, including administering, to a subject diagnosed as having an inflammatory disease, a therapeutically effective amount of the antibody; and a method of identifying a compound that inhibits a result of an effect of coexistence of Myl with CD69, and a method of identifying a candidate compound for treating an inflammatory disease, including selecting a compound that inhibits the result.
Type:
Application
Filed:
May 30, 2014
Publication date:
April 14, 2016
Inventors:
Toshinori NAKAYAMA, Hiroyuki HOSOKAWA, Koji TOKOYODA, Koji HAYASHIZAKI, Akane SUZUKI
Abstract: The present invention provides methods of delivering a protein to the brain of a mammal, comprising administering to the mammal a therapeutic fusion protein comprising a homeodomain peptide operably linked to a therapeutic agent.
Type:
Application
Filed:
May 30, 2014
Publication date:
April 14, 2016
Applicant:
ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
Abstract: Cell culture media are provided herein as are methods of using the media for cell culture and antibody production from cells. Compositions comprising antibodies and fragments thereof, produced by the methods herein are also provided.
Abstract: This disclosure generally relates to antibodies or antibody fragments which specifically bind to M-CSF. In particular antibodies and antibody fragments are disclosed which bind to M-CSF and which inhibit binding of M-CSF to the M-CSF receptor with an IC50 of 10 pM or less. The invention also relates to nucleic acids, vectors and host cells capable of expressing the antibodies or fragments thereof of the invention, pharmaceutical compositions comprising the antibodies or fragments thereof and uses of said antibodies or fragments thereof and compositions for treatment of specific diseases.
Abstract: Methods for regulating T cell function in a subject, particularly regulatory T cell activity are provided. Methods of the invention include administering to a subject a therapeutically effective amount of an Interleukin 35-specific binding agent, such as an antibody or small molecule inhibitor. The invention further provides methods for enhancing the immunogenicity of a vaccine or overcoming a suppressed immune response to a vaccine in a subject, including administering to the subject a therapeutically effective amount of an IL35-specific binding agent and administering to the subject a vaccine. In one embodiment the vaccine is a cancer vaccine.
Type:
Application
Filed:
July 10, 2015
Publication date:
April 14, 2016
Inventors:
Dario Vignali, Creg Workman, Lauren Collison, Kate Vignali
Abstract: Disclosed herein are methods of treating moderate to severe eosinophilic asthma in a patient comprising: 1) identifying a patient having moderate to severe eosinophilic asthma, wherein the patient's symptoms are inadequately controlled with a current asthma therapeutic and wherein the patient's blood eosinophil levels are equal to or greater than 400/?L; and 2) administering to said patient a therapeutically effective dose of reslizumab.
Type:
Application
Filed:
August 28, 2015
Publication date:
April 14, 2016
Inventors:
Christopher O'Brien, James Zangrilli, Tushar Shah, Guy Brusselle
Abstract: The present invention is directed to therapeutic methods using antibodies and fragments thereof having binding specificity for IL-6 to prevent or treat cachexia, fever, weakness and/or fatigue in a patient in need thereof. In preferred embodiments, the anti-IL-6 antibodies will be humanized and/or will be aglycosylated. Also, in preferred embodiments these patients will comprise those exhibiting (or at risk of developing) an elevated serum C-reactive protein level. In another preferred embodiment, the patient's survivability or quality of life will preferably be improved.
Type:
Application
Filed:
August 24, 2015
Publication date:
April 14, 2016
Inventors:
Jeffrey T.L. SMITH, John A. Latham, Mark Litton, Randall Schatzman
Abstract: The present invention provides pharmaceutical formulations comprising a human antibody that specifically binds to human interleukin-4 receptor (hIL-4R). The formulations may contain, in addition to an anti-hIL-4R antibody, at least one amino acid, at least one sugar, or at least one non-ionic surfactant. The pharmaceutical formulations of the present invention exhibit a substantial degree of antibody stability after storage for several months.
Abstract: The present invention relates to an antibody in which a motif composed of an amino acid or peptide sequence including one or more cysteine residues is bound to the terminus of a parent antibody, particularly the terminus of the heavy chain of the parent antibody. Also, the present invention relates to a modified antibody-drug conjugate (mADC) comprising a drug bound to the antibody, and a method for producing the antibody or the modified antibody-drug conjugate. The modified antibody-drug conjugate according to the invention can accurately deliver the drug to a target cell due its high specificity to antigen, and thus can increase the therapeutic effect of the drug. Also, it can increase the usability of drugs, particularly anticancer drugs, the use of which is restricted due to their toxicity, despite their high efficacy. Moreover, the invention relates to a composition for treatment of diseases, particularly cancers, which comprise the modified antibody-drug conjugate.
Type:
Application
Filed:
February 22, 2013
Publication date:
April 14, 2016
Applicant:
ALTEOGEN INC.
Inventors:
Soon Jae Park, Hye-Shin Chung, Seonhun Kwon, Sunbae Lee, Sun-ah Yoo, Yong Mo Kim
Abstract: A general method is provided for the production of purified antibodies by separation of an antibody molecule from an antibody variant by chromatographic methods, e.g. to enhance therapeutic efficacy, by for example choosing a specific harvesting time point and/or a specific purification scheme. The current invention thus reports a method for producing an antibody composition comprising an antibody molecule and a variant thereof, comprising the following steps: providing a sample comprising the antibody molecule and a variant thereof, determining the presence of the antibody molecule and/or a variant thereof and/or the ratio of the amount of the antibody molecule or variant thereof to the sum of the amounts of the antibody molecule and the variant thereof, in an aliquot of said sample, determining a subsequent harvesting time point and/or antibody purification scheme on basis of the data obtained before, thereby producing an antibody composition comprising the antibody molecule and a variant thereof.
Type:
Application
Filed:
December 18, 2015
Publication date:
April 14, 2016
Applicant:
Hoffmann-La Roche Inc.
Inventors:
Josef Burg, Bernhard Hilger, Thorsten Kaiser, Wolfgang Kuhne, Lars Stiens, Claus Wallerius, Frank Zettl
Abstract: Pharmaceutical composition comprising antibodies or antigen binding fragments thereof that bind to globo H, SSEA3, and SSEA-4 are disclosed herein, as well as methods of use thereof. Methods of use include, without limitation, cancer therapies and diagnostics. The antibodies of the disclosure can bind to certain cancer cell surfaces. Exemplary targets of the antibodies disclosed herein can include carcinomas, such as those in brain, skin, bone, lungs, breast, esophagus, stomach, liver, bile duct, pancreas, colon, kidney, cervical, ovarian, and/or prostate cancer.
Abstract: The invention provides methods for generating human antibodies with the specificity of a reference antibody by replacement of portions of the VH and VL sequences of the reference antibody with sequences from human antibody repertoires. The invention also provides novel compositions comprising hybrid immunoglobulin variable domains containing a combination of frameworks (FRs) and CDRs from different antibody clones.
Type:
Application
Filed:
December 14, 2015
Publication date:
April 14, 2016
Inventors:
Christopher Robert Bebbington, Kenneth R. Luehrsen, Geoffrey T. Yarranton
Abstract: Prepare lithium carboxymethyl cellulose by treating sodium carboxymethyl cellulose with a weak acid to form an acid from of carboxymethyl cellulose and then treating the acid form of the carboxymethyl cellulose with lithium chloride.
Type:
Application
Filed:
May 28, 2014
Publication date:
April 14, 2016
Applicant:
Dow Global Technologies LLC
Inventors:
Alexandra Hild, Hans-Juergen Juhl, Roland Adden
Abstract: Describes cooperative hybrid complexes of hyaluronic acid, a simple and economical method for production thereof and use thereof in the area of medicine, cosmetics and food.
Type:
Application
Filed:
December 18, 2015
Publication date:
April 14, 2016
Inventors:
Mario De Rosa, Antonella D'Agostino, Annalisa La Gatta, Chiara Schiraldi
Abstract: The invention provides an ethylene-based polymer comprising the following properties: a) a melt index (I2)?2.0 dg/min; b) a Mw(abs) versus I2 relationship: Mw(abs)<A+B(I2), where A=2.40×105 g/mole, and B=?8.00×103 (g/mole)/(dg/min); and c) a G? versus I2 relationship: G??C+D(I2), where C=127.5 Pa, and D=?1.25 Pa/(dg/min). The invention also provides an ethylene-based polymer comprising the following properties: a) a melt index (I2)?2.0 dg/min; b) a G? versus I2 relationship: G??C+D(I2), where C=127.5 Pa, and D=?1.25 Pa/(dg/min) c) a chloroform extractable (Clext) versus G? relationship: Clext.?E+FG?, where E=0.20 wt %, and F=0.060 wt %/Pa; and d) a “weight fraction (w) of molecular weight greater than 106 g/mole, based on the total weight of polymer, and as determined by GPC(abs),” that meets the following relationship: w<I+J(I2), where I=0.080, and J=?4.00×10?3 min/dg.
Type:
Application
Filed:
December 17, 2015
Publication date:
April 14, 2016
Inventors:
Otto J. Berbee, Cornelis F.J. Den Doelder, Stefan Hinrichs, Teresa P. Karjala
Abstract: A method of making a solid catalyst component for production of a polyolefin, including the steps of: a) dissolving a halide-containing magnesium compound in a mixture including alkylepoxide, an organic phosphorous compound, a carboxylic acid or anhydride, and a hydrocarbon solvent to form a homogenous solution; b) optionally treating the homogeneous solution with a halogenating agent; c) treating the homogenous solution with a first titanium halide compound in the presence of a surface modifier and optionally a first electron donor to form a solid precipitate, wherein, if present, the first electron donor is an ether; d) optionally treating the solid precipitate with a second electron donor; and e) treating the solid precipitate with a second titanium halide compound and optionally with a second electron donor to form the solid catalyst component.
Type:
Application
Filed:
October 10, 2014
Publication date:
April 14, 2016
Inventors:
Kayo UMEZAWA-VIZZINI, Vladimir P. MARIN, Michael SPENCER, Neil J. O'REILLY, Ahmed HINTOLAY
Abstract: A polymer includes repeat units, at least half of which are photoacid-generating repeat units. Each of the photoacid-generating repeat units includes photoacid-generating functionality and base-solubility-enhancing functionality. The polymer is useful as a component of a photoresist composition that further includes a second polymer that exhibits a change in solubility in an alkali developer under action of acid.
Type:
Application
Filed:
August 24, 2015
Publication date:
April 14, 2016
Inventors:
Vipul Jain, Paul J. LaBeaume, James W. Thackeray, James F. Cameron, Suzanne M. Coley, Amy M. Kwok, David A. Valeri
Abstract: A polymer includes repeat units, most of which are photoacid-generating repeat units. Each of the photoacid-generating repeat units includes photoacid-generating functionality and base-solubility-enhancing functionality. Each of the photoacid-generating repeat units comprises an anion and a photoacid-generating cation that collectively have structure (I) wherein q, r, R1, m, X, and Z? are defined herein. The polymer is useful as a component of a photoresist composition that further includes a second polymer that exhibits a change in solubility in an alkali developer under action of acid.
Type:
Application
Filed:
August 24, 2015
Publication date:
April 14, 2016
Inventors:
Paul J. LaBeaume, Vipul Jain, James W. Thackeray, James F. Cameron, Suzanne M. Coley, Amy M. Kwok, David A. Valeri
Abstract: The present disclosure provides an olefin polymerization catalyst and a combined catalyst containing the same. The catalyst comprises a reaction product of a magnesium dialkoxide, a titanium compound, an electron donor compound A and an electron donor compound B, wherein the electron donor compound A is a sulfonyl compound represented by general formula I, X is a disubstituted or unsubstituted group 14 element atom, a monosubstituted or unsubstituted group 15 element atom or group 16 element atom, and the substituent is a monocyclic, polycyclic or heteroatom-containing cyclic group or an aliphatic chain; R1 and R2 are respectively hydrogen atom, halogen atom, substituted or unsubstituted alkyl, cycloalkyl, aryl, aralkyl, alkylaryl or heteroatom-containing cyclic group. The combined catalyst comprises the catalyst and an organoaluminium compound and can comprise an organosilicon compound.
Abstract: Synthetic schemes for preparation of polymers and polymer precursors having various functional groups is provided. These synthetic schemes are used to prepare polymeric, oligomeric, or monomeric materials incorporating 1,3,5-hexahydrotriazine moieties. These hexandortriazine moieties can be further reacted to form dithiazine and thioether moieties. In certain synthetic schemes, 1,3,5-hexahydrotriazine moieties are incorporated as crosslinker groups for providing crosslinked polymeric materials. Crosslinker groups formed with these triazine moieties provide chemically reversible crosslinks, which allow such otherwise intractable crosslinked polymeric materials to be recycled and/or reprocessed by removal/reversal of crosslinks.
Type:
Application
Filed:
October 9, 2014
Publication date:
April 14, 2016
Inventors:
Dylan J. BODAY, Jeannette M. GARCIA, James L. HEDRICK, Rudy J. WOJTECKI
Abstract: Catalyst compositions containing activator-supports and half-metallocene titanium phosphinimide complexes or half-metallocene titanium iminoimidazolidide complexes are disclosed. These catalyst compositions can be used to produce olefin polymers having relatively broad molecular weight distributions and low levels of long chain branching.
Type:
Application
Filed:
October 9, 2014
Publication date:
April 14, 2016
Inventors:
Carlos A. Cruz, Jared L. Barr, Jeremy M. Praetorius
Abstract: A copolymer includes structural units having the following formulae (1) and (2): wherein each of R1 and R2 independently represents a hydrogen atom or a methyl group; X represents a hydrogen atom or a cationic ion; and L represents a single bond or —(CH2)n—O—, the oxygen atom of which is bonded with the biphenyl; and n represents an integer of from 2 to 18.
Abstract: A flame retardant acrylic/polylactic acid (PLA) copolymer is synthesized which contains a FR-PMMA block that includes either a poly(MMAP) block or a poly(MMA-co-MMAP) block, wherein MMA is methyl methacrylate and MMAP is a MMA-like monomer that is functionalized with a phosphorus-containing moiety. In some embodiments, the flame retardant acrylic/PLA copolymer is a diblock copolymer containing a PLA block and a FR-PMMA block. In other embodiments, the flame retardant acrylic/PLA copolymer is a triblock-graft copolymer containing a PLA block, a PMMA block and a FR-PMMA block.
Type:
Application
Filed:
October 14, 2014
Publication date:
April 14, 2016
Inventors:
Dylan J. Boday, Joseph Kuczynski, Timothy C. Mauldin
Abstract: The invention relates to unique applications for the novel high melt flow, low viscosity, selectively hydrogenated styrene-butadiene-styrene (hSBS) or selectively hydrogenated controlled distribution styrene-butadiene/styrene-styrene (hSBSS) block copolymers, wherein the melt flow rate of said block copolymer is at least 100 g/10 min at 230° C. under 2.16 kg mass according to ASTM D1238. These block copolymers are novel and have the highest melt flow rate of any styrenic block copolymer also possessing high strength and elasticity. It has applications that prior to the present invention were not normally possible due to the normal low melt flow rate of styrenic block copolymers. The present invention also encompasses various fields of use such as a fiberglass hSBS or hSBSS reinforced mat, low viscosity hSBS or hSBSS coatings for industrial uses, hot melt adhesives prepared from hSBS or hSBSS blended with polyalpha-olefins, and elastic film, fiber, and nonwoven constructions using hSBS or hSBSS.
Type:
Application
Filed:
December 17, 2015
Publication date:
April 14, 2016
Applicant:
KRATON POLYMERS US LLC
Inventors:
Troy E. WIEGAND, Kathryn Janelle WRIGHT
Abstract: A HMF-based phenol formaldehyde resin is provided. The HMF-based phenol formaldehyde resin has the formula In the formula, A includes non-substituted phenol, m-cresol, p-cresol, hydroquinone or disubstituted phenol, B includes phosphate ester, phosphate, phosphine oxide, phosphinate ester or phosphinate, and n is 3-20, wherein the disubstituted phenol has substituted groups including H, halide, C1-C20 alkyl group, C1-C20 alkenyl group, C1-C20 cycloalkyl group, C1-C20 cycloalkenyl group, homocyclic aromatic group or heterocyclic aromatic group.
Type:
Application
Filed:
October 13, 2015
Publication date:
April 14, 2016
Applicant:
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE