Abstract: The presently disclosed subject matter provides antibodies or antigen-binding fragments thereof that bind to uPAR and methods of using such antibodies or antigen-binding fragments thereof same.
Type:
Application
Filed:
December 11, 2023
Publication date:
April 11, 2024
Applicants:
Memorial Sloan-Kettering Cancer Center, Sloan-Kettering Institute For Cancer Research, Memorial Hospital For Cancer and Allied Diseases
Inventors:
Scott W. Lowe, Michel Sadelain, Corina Amor Vegas
Abstract: Isolated polypeptides having a heavy chain variable region and/or light chain variable region that specifically binds to EpCAM protein as well as antibodies and antibody fragments containing the heavy chain variable region and/or the light chain variable region that bind to EpCAM protein. Pharmaceutical compositions and kits comprising the polypeptide and antibodies and antibody fragments containing the polypeptide are also provided.
Type:
Application
Filed:
November 14, 2023
Publication date:
April 11, 2024
Applicant:
BioAtla, Inc.
Inventors:
Jay M. Short, Gerhard Frey, Hwai Wen Chang
Abstract: The present invention concerns antigen binding proteins specifically binding melanoma associated antigen A (MAGE-A) protein-derived antigens. The invention in particular provides antigen binding proteins which specifically bind to the MAGE-A antigenic peptide comprising or consisting of SEQ ID NO: 1 in a complex with a major histocombatibility (MHC) protein. The antigen binding proteins of the invention contain, in particular, the complementary determining regions (CDRs) of novel engineered T cell receptors (TCRs) that specifically bind to said MAGE-A peptide/MHC complex. The antigen binding proteins of the invention are of use for the diagnosis, treatment and prevention of MAGE-A expressing cancerous diseases. Further provided are nucleic acids encoding the antigen binding proteins of the invention, vectors comprising these nucleic acids, recombinant cells expressing the antigen binding proteins and pharmaceutical compositions comprising the antigen binding proteins of the invention.
Type:
Application
Filed:
December 13, 2023
Publication date:
April 11, 2024
Inventors:
Meike HUTT, Felix UNVERDORBEN, Sebastian BUNK, Dominik MAURER, Martin HOFMANN, Gabriele PSZOLLA, Sara YOUSEF, Claudia WAGNER, Frank SCHWOEBEL, Heiko SCHUSTER
Abstract: The disclosure provides anti-Mcl-1 antibodies of any form, and fragments thereof, that bind the antigen with unexpectedly high binding to Mcl-1, providing tools useful in methods of monitoring cancer cells expressing Mcl-1 and methods of treating cancers, particularly blood-borne cancers, comprising such cancer cells.
Type:
Application
Filed:
January 28, 2022
Publication date:
April 11, 2024
Inventors:
Agnieszka Kielczewska, Brian Chan, Michael C. Boyle
Abstract: Disclosed herein are recombinant antibodies or the fragment thereof for detecting ganglioside GM2 activator (GM2A) protein in vitro. Also disclosed herein are kits and methods for determining whether a subject has or is at risk of developing lung cancer with the aid of the present recombinant antibodies.
Abstract: The current disclosure provides binding polypeptides (e.g., antibodies), and targeting moiety conjugates thereof, comprising a site-specifically engineered glycan linkage within native or engineered glycans of the binding polypeptide. The current disclosure also provides nucleic acids encoding the antigen-binding polypeptides, recombinant expression vectors and host cells for making such antigen-binding polypeptides. Methods of using the antigen-binding polypeptides disclosed herein to treat disease are also provided.
Type:
Application
Filed:
June 21, 2023
Publication date:
April 11, 2024
Inventors:
Luis AVILA, Clark PAN, Huawei QIU, Qun ZHOU
Abstract: Disclosed herein are fibroblast activation protein (FAP)-specific binding polypeptides. These binding polypeptides may be incorporated into chimeric antigen receptors (CARs). Also disclosed herein are methods of using these binding polypeptides and/or CARs for the treatment of, for example, a cancer.
Abstract: The present invention relates to specific binding members, particularly antibodies and fragments thereof, which bind to amplified epidermal growth factor receptor (EGFR) and to the de2-7 EGFR truncation of the EGFR. In particular, the epitope recognized by the specific binding members, particularly antibodies and fragments thereof, is enhanced or evident upon aberrant post-translational modification. These specific binding members are useful in the diagnosis and treatment of cancer. The binding members of the present invention may also be used in therapy in combination with chemotherapeutics or anti-cancer agents and/or with other antibodies or fragments thereof.
Type:
Application
Filed:
April 26, 2023
Publication date:
April 11, 2024
Inventors:
Lloyd J. Old, Terrance Grant Johns, Con Panousis, Andrew M. Scott, Christoph Renner, Gerd Ritter, Achim Jungbluth, Elisabeth Stockert, Vincent Peter Collins, Webster K. Cavenee, Huei-Jen Su Huang, Antony Wilks Burgess, Edouard C. Nice, Anne Murray, George Mark
Abstract: The present invention relates to novel bispecific polypeptides, such as antibodies, and their use in the treatment of cancers, particularly cancers expressing carcinoembryonic antigen (CEA).
Type:
Application
Filed:
November 13, 2023
Publication date:
April 11, 2024
Inventors:
PETER ELLMARK, KARIN HAGERBRAND, Laura Varas, Mattias Levin, Anna Säll, Laura von Schantz
Abstract: The present invention relates generally to therapeutic compositions comprising chitosan-derived compositions used in connection with methods for treating neoplasms, such as for instance, malignant lung, thyroid and kidney neoplasms, and other types of malignant neoplasms, and other medical disorders.
Type:
Application
Filed:
August 23, 2023
Publication date:
April 11, 2024
Inventors:
Tomas Hode, Robert E. Nordquist, Wei R. Chen, Raoul Carubelli, Luciano Alleruzzo, Peter Jenkins, Kristopher Waynant, Joseph Raker
Abstract: A composition containing polytetrafluoroethylene and substantially free from a compound represented by Formula (3): (H—(CF2)8—SO3)qM2 wherein M2 is H, a metal atom, NR54 (where R5s may be the same as or different from each other and are each H or an organic group having 1 to 10 carbon atoms), an imidazolium optionally having a substituent, a pyridinium optionally having a substituent, or a phosphonium optionally having a substituent, and q is 1 or 2. Also disclosed is a molded boy including the composition.
Abstract: A block polymer, a lithiated block polymer, and a preparation method and application thereof are provided. A block polymer has a structure shown in B-C-B-A, where A represents a polymer block A, B represents a polymer block B, and C represents a polymer block C. The polymer block A is polymerized from alkenyl formic acid monomers. The polymer block B is polymerized from aryl vinyl monomers. The polymer block C is polymerized from acrylate monomers. The lithiated block polymer is a lithiated product of the block polymer. The block polymer and the lithiated block polymer can be used as lithium-ion battery binder.
Abstract: A method of adjusting a processing parameter of a polymer is provided. The method has the steps a) and b). Step a) is combining polymer i) which is polypropylene and/or polyethylene with a process aid ii) to provide a polymer composition. Polymer i) has a peak molecular weight Mp and a polydispersity index PDI of 7 or higher. Step b) is processing the polymer composition at a processing condition. The processing parameter is adjusted at the processing condition for the polymer composition compared to a comparative polymer composition A); and a comparative polymer composition B). Comparative polymer composition A) lacks the process aid ii) but is otherwise identical to the polymer composition. Comparative polymer composition B) includes a comparative polymer having the same composition and Mp as polymer i) and a PDI less than polymer i) instead of the polymer i), but is otherwise identical to the polymer composition.
Type:
Application
Filed:
October 11, 2022
Publication date:
April 11, 2024
Applicant:
FINA TECHNOLOGY, INC.
Inventors:
Joachim Azzi, Fengkui Li, Mohammad Tuhin
Abstract: A catalytic system based on at least one rare-earth metallocene and an organomagnesium reagent as co-catalyst of formula RB—(Mg—RA)m—Mg—RB is provided. According to the formula, RB comprises a benzene nucleus substituted with the magnesium atom. One of the carbon atoms of the benzene nucleus ortho to the magnesium is substituted with a methyl, an ethyl or an isopropyl or forms a ring with the carbon atom which is its closest neighbour and which is meta to the magnesium. The other carbon atom of the benzene nucleus ortho to the magnesium is substituted with a methyl, an ethyl or an isopropyl. RA is a divalent aliphatic hydrocarbon-based chain, optionally interrupted with one or more oxygen or sulfur atoms or with one or more arylene groups. The m is a number greater than or equal to 1, preferably 1. The catalytic system allows the synthesis of dienic and/or ethylenic telechelic polymers.
Type:
Application
Filed:
November 19, 2021
Publication date:
April 11, 2024
Inventors:
Robert NGO, Nicolas BAULU, Christophe BOISSON, Franck D'AGOSTO, François JEAN-BAPTISTE-DIT-DOMINIQUE, Julien THUILLIEZ
Abstract: A polymerizable composition includes a water-soluble monofunctional acrylamide compound, a water-soluble photoradical initiator, a water-soluble photosensitizer, and an aqueous solvent.
Type:
Application
Filed:
November 10, 2020
Publication date:
April 11, 2024
Applicant:
ADEKA CORPORATION
Inventors:
Kenji HARA, Kazuteru NAGASAKA, Masatomi IRISAWA, Yuji ODA
Abstract: Even when used in applications such as electronic materials, display materials, and inks, in which required standards in terms of coloring prevention, long term stability, low impurity content, and the like, are extremely high, the present invention can meet such required standards. The present invention addresses the problem of providing an allylamine (co)polymer which overcomes the limitations of the prior art, undergoes little coloring, contains little impurities and exhibits excellent long term stability; and a method for producing the same. This problem can be solved by an allylamine (co)polymer which has constituent units derived from allylamine and contains sulfuric acid groups in the structure thereof, in which the proportion of the sulfuric acid groups with respect to the total mass of the allylamine (co)polymer is 20,000 ppm by mass or less.
Abstract: A chloroprene-based polymer, wherein: a 1H-NMR spectrum of the chloroprene-based polymer measured in a deuterochloroform solvent has a peak at 5.80 to 6.00 ppm; when an area of the peak at 5.80 to 6.00 ppm is A and an area of a peak at 4.05 to 6.00 ppm is B, A/B is 1.20/100 or less; the 1H-NMR spectrum of the chloroprene-based polymer measured in a deuterochloroform solvent has a peak at 5.40 to 5.60 ppm; when an area of the peak at 5.40 to 5.60 ppm is D and the area of the peak at 4.05 to 6.00 ppm is B, D/B is 97.20/100 or less, is provided.
Type:
Application
Filed:
March 24, 2022
Publication date:
April 11, 2024
Applicant:
DENKA COMPANY LIMITED
Inventors:
Seiya TOMIZAWA, Wataru NISHINO, Misaki TADA
Abstract: A curable composition is provided. The curable composition can eliminate or minimize the generation of bubbles inside the cured product after the initiation reaction of the curable monomer, prevent expansion of a material when used to encapsulate a device, and provide a uniform cured product to solve the problem of separation between the upper and lower substrates bonded together, thereby improving device encapsulation performance.
Type:
Application
Filed:
September 11, 2023
Publication date:
April 11, 2024
Inventors:
Young Jin KWON, Seong Chan SON, Jin Wuk KIM, Dong Min KIM, Ja Hun BYEON
Abstract: The present invention relates to an ethylene polymer and a process for preparing the same, wherein the ethylene polymer has an average particle size of 50-3000 ?m, a bulk density of 0.28-0.55 g/cm3, a true density of 0.930-0.980 g/cm3, a melt index at a load of 2.16 Kg at 190° C. of 0.01-2500 g/10 min, a crystallinity of 30-90%, a melting point of 105-147° C., a comonomer molar insertion rate of 0.01-5 mol %, a weight-average molecular weight of 2×104 g/mol-40×104 g/mol, and a molecular weight distribution of 1.8-10. In the preparation process, raw materials containing ethylene, hydrogen gas and a comonomer are subjected to a tank-type slurry polymerization with an alkane solvent having a boiling point of 5-55° C. or a mixed alkane solvent having a saturated vapor pressure of 20-150 KPa at 20° C. as the polymerization solvent in the presence of a polyethylene catalytic system, at the molar ratio of hydrogen gas to ethylene of 0.01-20:1, preferably 0.
Type:
Application
Filed:
January 26, 2022
Publication date:
April 11, 2024
Inventors:
Chuanfeng LI, Wenrui WANG, Kun JING, Yuejun XING, Huimin XIA, Minghua CHEN, Zhonglin YOU, Shaohui CHEN, Jianhong ZHAI, Feng GUO, Liu YANG, Li MEI
Abstract: A method of making a crosslinked fluoropolymer is described. The method comprises applying a composition to a substrate, wherein the composition comprises fluoropolymer and a fluorinated solvent, one or more curing agents comprising an ethylenically unsaturated group and an electron donor group or precursor thereof. The method further comprises removing the solvent and curing the fluoropolymer with actinic (e.g. ultraviolet “UV”) radiation. Also described is a composition comprising a fluoropolymer dissolved in a fluorinated solvent, and one or more curing agents comprising an ethylenically unsaturated group and an electron donor group or precursor thereof; and article comprising the crosslinked fluoropolymer.
Type:
Application
Filed:
October 27, 2020
Publication date:
April 11, 2024
Inventors:
Naiyong Jing, Cheng Gu, Klaus Hintzer, Tho Q. Nguyen, Peter J. Scott
Abstract: A method for producing a fluoropolymer which method includes polymerizing a perfluoromonomer in an aqueous medium in the presence of a polymer (1) to obtain a fluoropolymer, wherein the content of a polymerized unit derived from the perfluoromonomer in the fluoropolymer is 90 mol % or more based on all polymerized units of the fluoropolymer, the polymer (1) is a polymer of a monomer (1) represented by the general formula (1): CF2?CF—O—R-(Rf-SO3M)m, a polymerized unit (1) derived from the monomer (1) in the polymer (1) is 50% by mass or more based on all polymerized units of the polymer (1), and the content of a dimer and a trimer of the monomer (1) in the polymer (1) is 1.0% by mass or less based on the polymer (1).
Abstract: To provide a method for producing a fluorinated copolymer, whereby it is possible to efficiently produce a fluorinated copolymer in which coloration and foaming are suppressed during heating. A method for producing a fluorinated copolymer, comprising a step of producing a fluorinated copolymer by polymerizing tetrafluoroethylene and other monomer other than the tetrafluoroethylene in the presence of a hydroperoxide, at least one selected from the group consisting of a sulfite, a hydrogen sulfite, a dithionite, and a metabisulfite, at least one selected from the group consisting of an acidic substance and a substance that generates an acid by hydrolysis, and an aqueous medium.
Abstract: In an aspect, a composition comprises an alkali-swellable copolymer that is derived from a mixture comprising 15 to 50 wt % of an ethylenically unsaturated carboxylic acid; 30 to 70 wt % of an ethylenically unsaturated C1-2 alkyl carboxylate ester; and 15 to 40 wt of a nonionic ethylenically unsaturated surfactant monomer of the Formula (A); and less than or equal to 0.15 wt of a multifunctional monomer contains greater than 1 vinyl group. The composition has a pH of greater than or equal to 6. The composition can optionally comprise a surfactant.
Type:
Application
Filed:
October 14, 2020
Publication date:
April 11, 2024
Inventors:
Robert Butternick, Gregoire Cardoen, Marianne Creamer, Ralph C. Even, Kurt J. Magni, Ying O'Connor, Eric Wasserman
Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; a light emitting device disposed on the substrate; a resin layer sealing the light emitting device on the substrate; and a diffusion layer or a reflective substrate disposed on the resin layer, wherein the resin layer includes an oligomer, a monomer, and an additive, wherein the monomer includes IBOA (Iso-bornyl Acrylate), two or more dilution monomers and glycidyl methacrylate (GMA), the additive includes a photoinitiator and an amine-based light stabilizer, and in the oligomer and the monomer, the content of glycidyl methacrylate is 10 to 15%, and the resin layer may be a curable transparent resin cured by ultraviolet light.
Abstract: The present disclosure relates to dental, free-radically polymerizable compositions, and to the use thereof in stereolithography and/or 3D printing, in particular for the 3D printing of dental shaped components, such as dental models, trays, try-ins or dentures. The dental, free-radically polymerizable compositions feature a change in opacity during the polymerization.
Type:
Application
Filed:
September 14, 2023
Publication date:
April 11, 2024
Inventors:
Sebastian Lamping, Manfred Thomas Plaumann
Abstract: The present invention relates to novel ophthalmic devices comprising polymerized compounds comprising a photoactive chromophore, special polymerized compounds, and special monomer compounds being particularly suitable for compositions and ophthalmic devices. The present invention is also directed to a process of changing the optical properties of said ophthalmic device or a precursor article for an ophthalmic device.
Type:
Application
Filed:
January 24, 2022
Publication date:
April 11, 2024
Inventors:
Lars DOBELMANN-MARA, Stefan RIEDMUELLER, Simon HELMSTETTER, David MOORE
Abstract: Macroparticulates may be formed through at least partial self-assembly by reacting an epoxide-containing (meth)acrylic polymer or copolymer with a compound bearing a nitrogen nucleophile. An internal cavity may be formed when functionalizing the (meth)acrylic polymer or copolymer in the presence of a hindered amine base. When appropriately functionalized, the macroparticulates may be used to sequester a contaminant from a substance in need of contaminant remediation, such as produced water or flowback water from a wellbore job site. Reclaimed water obtained from the macroparticulates may be utilized to form a treatment fluid. The macroparticulates may be located within a continuous flow line, particularly within a removable cartridge, to promote removal of at least one contaminant from a substance in need of contaminant remediation.
Type:
Application
Filed:
December 4, 2023
Publication date:
April 11, 2024
Applicant:
COUNTERTRACE LLC
Inventors:
Robert E. HANES, JR., Richard L. PETTYS, David M. HEADLEY, Paul T. HOOPINGARNER, Karen A. SCHERER
Abstract: Provided is a modifier for an ophthalmic device capable of imparting high wettability and lubricity to a silicone hydrogel, specifically, a modifier for an ophthalmic device capable of expressing such effect when contained in a small amount. Also provided are a silicone hydrogel obtained by curing a silicone hydrogel composition containing the modifier for an ophthalmic device, and an ophthalmic device using the silicone hydrogel. It has been found that a water-soluble silicone-containing water-soluble copolymer obtained by copolymerizing a phosphorylcholine group-containing monomer and a specific silicone monomer can impart high wettability and lubricity to a silicone hydrogel when contained in a small amount.
Abstract: A curable, optical ink comprises first and second monomer monomers. The first monomer is photopolymerizable over a first wavelength band. The multifunctional second monomer is photopolymerizable over a second wavelength band, which is distinct from the first wavelength band.
Type:
Application
Filed:
September 18, 2023
Publication date:
April 11, 2024
Inventors:
Edward Whitney Elliott, III, Sergiu Coporan, Patrick Haben, Alec Gosiak, Sangyup Song, Robol Lenorage Chamika Lenora, George Williams
Abstract: Aspects involve a stretchable composite film including a polymer material having at least a portion of the polymer material being densified through covalently-attached fluorination molecules. In certain specific examples, fluorinated molecules are covalently attached to a surface region, in the form of a layer or film (e.g., polymer semiconductor (PSC) film of a transistor substrate) to facilitate operational stability and/or to encapsulation performance (e.g., stretchability-related performance). In certain other specific examples, the surface region and a fluorinated layer are used in a cooperative configuration to provide stability in the PSC film in one or more harsh environments characterized by one or more of humid air, and immersion of the PSC film in a bio-based fluid.
Abstract: Provided is a resin composition capable of providing a three-dimensionally photofabricated object having high heat resistance while having water solubility. The resin composition is a resin composition for three-dimensional photofabrication containing a reactive monomer, a water-soluble polymer, and a photopolymerization initiator. A cured product of the resin composition has a main tan ? peak temperature of 80° C. or higher. A 1-mm-thick cured product of the resin composition exhibits a remaining thickness of 0.7 mm or smaller after 5-hour immersion in water that is at room temperature.
Abstract: The invention provides non-crosslinked and crosslinked block copolymers comprising at least one block A comprising repeating units derived from monomers comprising one or more C1-C3 alkyl (meth)acrylamides and/or (meth)acrylates and at least one block B comprising repeating units derived from monomers comprising one or more C4-C40 alkyl (meth)acrylamides. The invention further provides compositions comprising the block copolymers and applications thereof in various industrial areas including personal care. The invention furthermore provides compositions comprising colloidal particles of the block copolymers. The variables x, y, R1, and R2 are described herein.
Type:
Application
Filed:
November 30, 2021
Publication date:
April 11, 2024
Applicant:
ISP Investments LLC
Inventors:
Rebecca Roisin Gibson, ALAN FERNYHOUGH, OSAMA M. MUSA, Steven Peter ARMES
Abstract: Provided is a technique that provides high durability and high flexibility at low temperatures. A polyurethane resin composition is produced by chain-extending, using polyamine, a reaction product between a polyol including a polycarbonate polyol including a structural unit derived from 1,10-decanediol, a polyhydric alcohol including, as functional groups, three or more hydroxy groups alone and having a number-average molecular weight of 420 or more and 2000 or less, and a polyol including an anionic hydrophilic group, and polyisocyanate.
Abstract: A polymerizable composition comprising: an episulfide compound represented by the following Formula (1); a polyiso(thio)cyanate compound; a polythiol compound; and an epoxy compound (X) which contains one or more epoxy groups within one molecule, and which does not contain an episulfide group.
Abstract: A composition for film formation containing a polycyclic polyphenolic resin having repeating units derived from at least one monomer selected from the group consisting of aromatic hydroxy compounds represented by the formulas (1-0), (1A), and (1B), wherein the repeating units are linked by a direct bond between aromatic rings:
Abstract: A polymer having a constituent unit derived from a monomer represented by the following formula (0), wherein the polymer has sites in which the constituent units are linked by direct bonding between aromatic rings of the monomer represented by the formula (0): wherein R is a monovalent group, and m is an integer of 1 to 5, wherein at least one R is a hydroxyl group, an alkoxy group having 1 to 40 carbon atoms and optionally having a substituent, or an amino group having 0 to 40 carbon atoms and optionally having a substituent.
Abstract: A polymer represented by Chemical Formula 1 having a number average molecular weight of about 10 g/mol to 1,000,000 g/mol, and PDI of about 1 to about 1.1, a process of preparing the polymer, and a polyurethane prepared by using the polymer are provided: In Chemical Formula 1, each of R1, R2, X1, X2, Y1, Y2, k, m, and n is as defined as in the detailed description of the invention.
Abstract: The disclosure relates to compositions comprising a first structure of the formula: or a salt thereof, wherein R1, R2, R3, Ar1, and n are defined herein. Materials, devices, and methods of using such compositions are also described.
Type:
Application
Filed:
August 31, 2023
Publication date:
April 11, 2024
Inventors:
Jennifer Imbrogno, Andrew Davis, Ethan Wesley Kent
Abstract: This invention relates to a polyester composition comprising: (1) at least one polyester which comprises: (a) a dicarboxylic acid component comprising: (i) about 70 to about 100 mole % residues of terephthalic acid or esters thereof; (ii) about 0 to about 30 mole % of aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms; (b) a glycol component comprising: (i) about 10 to about 50 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; (ii) about 50 to about 90 mole % residues of 1,4-cyclohexanedimethanol; wherein the total mole % of the dicarboxylic acid component is 100 mole %, wherein the total mole % of the diol component is 100 mole %; and (2) lithium atoms, gallium atoms, and less than 30 ppm, or less than 20 ppm, or less than 10 ppm, or less than 5 ppm, or less than 2 ppm, or from 0 to 30 ppm, or from 0 to 20 ppm, or from 0 to 10 ppm, or 0 ppm of tin atoms.
Type:
Application
Filed:
December 16, 2021
Publication date:
April 11, 2024
Applicant:
Eastman Chemical Company
Inventors:
Brian Alan Schaefer, Kate Elizabeth Allen
Abstract: A polyester composition comprising: (1) at least one polyester which comprises: (a) a dicarboxylic acid component comprising: (i) about 70 to about 100 mole % residues of terephthalic acid or esters thereof; (ii) about 0 to about 30 mole % of aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms; (b) a glycol component comprising: (i) about 10 to about 60 mole % of 2, 2,4,4-tetramethyl-1,3-cyclobutanediol residues; (ii) about 40 to about 90 mole % residues of 1,4-cyclohexanedimethanol; (iii) optionally, residues of at least one modifying glycol; wherein the total mole % of the dicarboxylic acid component of the final polyester is 100 mole %; wherein the total mole % of the glycol component of the final polyester is 100 mole %; and (2) residues comprising titanium atoms and zinc atoms, and less than 30 ppm, or less than 20 ppm, or less than 10 ppm, or less than 5 ppm, or less than 2 ppm, or from 0 to 30 ppm, or from 0 to 20 ppm, or from 0 to 10 ppm, or 0 ppm of tin atoms.
Type:
Application
Filed:
December 16, 2021
Publication date:
April 11, 2024
Applicant:
Eastman Chemical Company
Inventors:
Brian Alan Schaefer, Kate Elizabeth Allen
Abstract: An object of the present invention is to provide a polyester resin excellent in moldability, surface smoothness, transparency, mechanical characteristics, and heat-resistance, with reduced generation of gel. The present invention relates to a polyester resin comprising a constituent moiety derived from dicarboxylic acid component and a constituent moiety derived from alcohol component, wherein a content of a compound represented by Formula (I) is 0.0002 to 5.9% by weight in 100% by weight of the alcohol component. In the Formula (I), m and n each represent 1 to 1000, 1 represents 0 to 1000, R1 represents an aromatic hydrocarbon group having 6 to 20 carbon atoms, and R2, R3, and R4 each represent a hydrogen atom or an alkyl group having 1 to 10 carbon atoms.
Abstract: Provided is a process for preparing a biodegradable polyester resin with suppressed discoloration and to a biodegradable polyester resin prepared by the process. The biodegradable polyester resin prepared by the above preparation process can be used for applications such as disposable films or sheets, tableware, and agricultural films or sheets since its discoloration is effectively suppressed.
Abstract: A polyarylate resin includes repeating units represented by formulas (1), (2), (3), and (4). A percentage of the number of repeats of the repeating unit represented by formula (3) relative to the total number of repeats of the respective repeating units represented by formulas (1) and (3) is greater than 0% and less than 20%. In formula (1), R1 and R2 each represent, independently of one another, a hydrogen atom or a methyl group and X represents a divalent group represented by formula (X1) or (X2). In formula (2), W represents, a divalent group represented by formula (W1) or (W2).
Type:
Application
Filed:
January 19, 2022
Publication date:
April 11, 2024
Applicant:
KYOCERA Document Solutions Inc.
Inventors:
Jun AZUMA, Keiji MARUO, Kenji KITAGUCHI
Abstract: This invention relates to a polyester composition comprising: (1) at least one polyester which comprises: (a) a dicarboxylic acid component comprising: (i) about 70 to about 100 mole % residues of terephthalic acid or esters thereof; (ii) about 0 to about 30 mole % of aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms; (b) a glycol component comprising: (i) about 10 to about 50 mole % of 2,2,4,4-tetramethyM,3-cyclobutanediol residues; (ii) about 50 to about 90 mole % residues of modifying glycols; wherein the total mole % of the dicarboxylic acid component is 100 mole %, wherein the total mole % of the diol component is 100 mole %; and (2) lithium atoms, gallium atoms; and, optionally, less than 30 ppm, or less than 20 ppm, or less than 10 ppm, or less than 5 ppm, or less than 2 ppm, or from 0 to 30 ppm, or from 0 to 20 ppm, or from 0 to 10 ppm, or 0 ppm of tin atoms.
Type:
Application
Filed:
December 16, 2021
Publication date:
April 11, 2024
Applicant:
Eastman Chemical Company
Inventors:
Brian Alan Schaefer, Kate Elizabeth Allen
Abstract: The present invention relates to a biodegradable branched polyester particularly suitable for use in extrusion coating and lamination, and the process for obtaining it.
Abstract: A method for producing a polycarbonate, including reacting a dihydroxy component with a fluorine-containing carbonate component in a presence of a condensation catalyst to obtain a prepolymer, and heating the prepolymer at a temperature lower than a melting temperature of the prepolymer and subjecting the prepolymer to a solid state polymerization while discharging a by-produced fluorine-containing alcohol outside a system,
Type:
Application
Filed:
November 16, 2023
Publication date:
April 11, 2024
Applicants:
AGC Inc., Nagoya Institute of Technology
Abstract: The present application relates to a polycarbonate including units represented by Chemical Formula 1a or 1b and Chemical Formula 1c, a composition including the same, and a molded article prepared from the composition.
Type:
Application
Filed:
January 12, 2022
Publication date:
April 11, 2024
Inventors:
Seoyoung Im, Hanbit Jang, Hoyong Lee, Cheol Jun Song
Abstract: Poly(cyclic acetal)s, methods of making same, and uses of same. The poly(cyclic acetal)s may have a number average molecular weight (Mn) of 10 to 3000 kiloDaltons (kDa) and over 50% of the chain ends may exclude hydroxyl groups. The poly(cyclic acetal) may be a homopolymer or copolymer(s) of poly(1,3-dioxolane) (PDXL). The poly(cyclic acetal)s may have one or more or all of: a thermal stability (Td,5%) of 337° C. to 392° C.; a thermal stability of (Td.50%) of 377° C. to 462° C.; or an Arrhenius activation energy (Ea) of 85.0 kJ/mol with 2 mol % of strong acid (e.g., pKa less than or equal to 4). Methods of polymerizing poly(cyclic acetal)s may comprise reacting cyclic acetal monomers with either Lewis acid catalysts and haloalkyl ether initiators or organic cation salt catalyst(s) and proton traps. Methods of chemically recycling poly(cyclic acetal)s into cyclic acetals may react poly(cyclic acetal)s with strong acids.