Patents Assigned to PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
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Publication number: 20200199633Abstract: This invention relates to a process for producing lactic acid or its salts that can be performed easily, reduce complicated steps, and provide high lactic acid yield and high productivity, wherein said process comprising the following steps: (a) cultivating thermotolerance Bacillus genus bacteria to obtain a seed culture; (b) increasing cell number of bacteria by inoculating the seed culture obtained from step (a) into a fermenter containing an initial carbon source under an aerobic condition; (c) fermenting the seed culture obtained from step (b) in the fermenter under a microaerobic condition to obtain lactic acid or its salts; wherein the step (b) comprising at least one addition of the carbon source under any one of the following conditions, which are independent to each other, to increase a concentration of the carbon source: —when the concentration of carbon source in the fermenter reduces to 50% or less comparing to the initial concentration.Type: ApplicationFiled: June 28, 2016Publication date: June 25, 2020Applicants: PTT Global Chemical Public Company Limited, Chulalongkorn UniversityInventors: Nuttha Thongchul, Vasana Tolieng, Phatthanon Prasitchoke
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Patent number: 10689806Abstract: The present invention relates to a pretreatment process of lignocellulosic biomass, comprising contacting lignocellulosic biomass with pretreatment solution in a temperature ranging from an ambient temperature to 100° C. and a pressure of at least 20 bars, wherein the pretreatment solution comprising water, water-miscible organic solvent and alkali having a concentration of 5 to 15% w/v if the alkali is solid or 5 to 15% v/v if the alkali is liquid. Said pretreatment process operates in mild condition or at low temperature to be specified with the removing of lignin but not destroying cellulose and increasing desired sugar yield.Type: GrantFiled: October 1, 2015Date of Patent: June 23, 2020Assignee: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITEDInventors: Naphatsaya Denchokpraguy, Verawat Champreda, Navadol Laosiripojana
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Publication number: 20200181658Abstract: The subject of this invention is improvements in the yield and titer of biological production of muconic acid by fermentation. Increased activity of one or more enzymes involved in the muconic acid pathway leads to increased production of muconic acid.Type: ApplicationFiled: March 1, 2017Publication date: June 11, 2020Applicant: PTT Global Chemical Public Company LimitedInventors: Ryan Sillers, Theron Hermann, Michelle Spencer, Russell Udani, R. Rogers Yocum
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Publication number: 20200157583Abstract: Improved yeast cell with increased succinic acid production based on yield and titer. Increased activity of one or more enzymes involved in the pentose phosphate pathway, reducing flux through phosphoglucose isomerase, increasing flux to cytoplasmic acetyl-CoA, installation of a malic enzyme, and/or installation of a formate dehydrogenase leads to increased production of succinic acid.Type: ApplicationFiled: May 23, 2018Publication date: May 21, 2020Applicant: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITEDInventor: Ryan SILLERS
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Publication number: 20200148817Abstract: This invention relates to hybrid polyols useful in the manufacture of polyurethane. The hybrid polyols of the present invention is derived by copolymerizing or grafting a traditional polyester polyol onto a natural oil polyol. In the preferred embodiment of the present invention, the traditional polyester polyol grafted onto natural oil polyol contains a high level of bio-renewable content. The hybrid polyols of the present invention with high level of bio-renewable content is useful in the manufacture of polyurethane either alone or in combination with polyester polyol or polyether polyol derived from petrochemical sources.Type: ApplicationFiled: June 27, 2017Publication date: May 14, 2020Applicant: PTT Global Chemical Public Company LimitedInventors: Arne Matthew Terwillegar, Thidarat Tosukhowong, Charliss Denniston, Nuttara Jamonnak
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Publication number: 20200131538Abstract: The invention provides processes for identifying and tracking genomic duplications that can occur during classical strain development or during the metabolic evolution of microbial strains originally constructed for the production of a biochemical through specific genetic manipulations, processes that stabilize the copy number of desirable genomic duplications using appropriate selectable markers, and non-naturally occurring microorganisms with stabilized copy numbers of a functional DNA sequence.Type: ApplicationFiled: June 29, 2018Publication date: April 30, 2020Applicant: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITEDInventors: R. Rogers YOCUM, Tammy GRABAR, Theron HERMANN, Christopher Joseph MARTIN, Ryan SILLERS, Xiaohui YU, Xiaomei ZHOU
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Publication number: 20200095192Abstract: The present invention relates to a new diethanolamine derivative chelating agent having a high water solubility, a good chelating property, and biological degradation. The said new chelating agent can be prepared from reaction of diethanolamine and cyclic anhydride compound using lewis acid as the catalyst. The said process is uncomplicated, and does not use a severe condition, and also reduces the use of harmful chemicals.Type: ApplicationFiled: May 30, 2018Publication date: March 26, 2020Applicant: PTT Global Chemical Public Company LimitedInventors: Papapida PORNSURIYASAK, Sophon KAEOTHIP
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Patent number: 10584090Abstract: This invention relates to a composition for a preparation of polyurethane dispersion, comprising bio-based polyol as shown in structure (I) and polyhydroxy fatty acid compound as shown in structure (II): wherein, R represents a polyhydric alcohol unit that is selected from aliphatic polyhydric alcohol, alicyclic polyhydric alcohol, cyclic polyhydric alcohol, aromatic polyhydric alcohol, or optionally, cyclic polyhydroxyl having heteroatom; R\ represents a hydrocarbon unit obtained from a molecular chain of unsaturated fatty acid having 14-24 carbon atoms and having from 1-6 pairs of vicinal diol group per one molecular chain of such unsaturated fatty acid; n represents an integer from 2 to 8 of an ester group obtained from a reaction of polyhydric alcohol and unsaturated fatty acid; wherein said composition is prepared from a process comprising the steps of: i.Type: GrantFiled: June 16, 2016Date of Patent: March 10, 2020Assignee: PTT Global Chemical Public Company LimitedInventor: Papapida Pornsuriyasak
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Publication number: 20200056212Abstract: This invention relates to a fermentation process for producing D-lactic acid or its salts. The said process comprises the following steps: cultivating of Sporolactobacillus laevolacticus bacteria strain by fermentation with sugarcane juice in order to obtain the seed culture; fermenting of the obtained seed culture in sugarcane juice, wherein the cultivation step is operated for the time that the final concentration of Sporolactobacillus laevolacticus strain in the cultivation step is in a range of 400 to 1,600 mg of dry cell per liter. The said process according to the invention can provide high productivity and yield of the D-lactic acid with a high optical purity. Moreover, the said process can be easily done and reduces the complicate steps.Type: ApplicationFiled: October 31, 2017Publication date: February 20, 2020Applicant: PTT Global Chemical Public Company LimitedInventors: Phatthanon PRASITCHOKE, Kraileark KITTISURIYANONT, Narong KAEWSUWAN, Natthawut POOMSILA, Nuttha THONGCHUL
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Publication number: 20200032301Abstract: This invention relates to the production of succinic acid and other chemicals derived from phosphoenolpyruvate (PEP) by fermentation with a microorganism in which the fermentation medium contains one or more sugars, and in which one or more of the sugars is imported into the cell by facilitated diffusion. As a specific example, succinic acid is produced from a glucose-containing renewable feedstock through fermentation using a biocatalyst. Examples of such a biocatalyst include microorganisms that have been enhanced in their ability to utilize glucose as a carbon and energy source. The biocatalysts of the present invention are derived from the genetic manipulation of parental strains that were originally constructed with the goal to produce one or more chemicals (for example succinic acid and/or a salt of succinic acid) at a commercial scale using feedstocks that include, for example, glucose, fructose, or sucrose.Type: ApplicationFiled: September 30, 2019Publication date: January 30, 2020Applicant: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITEDInventors: R. Rogers YOCUM, Andrew Christopher COLLARD, Theron HERMANN, Xiaohui YU, Wei GONG
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Patent number: 10544082Abstract: Described herein are solid acid catalysts and the methods for catalytically preparing ?,?-unsaturated carboxylic acids and/or esters thereof. In one aspect, a zeolite catalyst may be used. The catalyst may, in certain embodiments, be modified to improve the selectivity and/or conversion of a reaction. For instance, a catalyst may be modified by ion exchange to achieve a desirable acidity profile in order to achieve high level of conversion of reactants and selectivity for desirable products of the catalytic reaction. In another aspect, a variety of feed stocks (e.g., starting compositions) may be used including an ?-hydroxycarboxylic acid, an ?-hydroxycarboxylic acid ester, a ?-hydroxycarboxylic acid, a ?-hydroxycarboxylic acid ester, cyclic esters thereof (e.g., lactide), and combinations thereof.Type: GrantFiled: June 10, 2016Date of Patent: January 28, 2020Assignee: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITEDInventors: Cenan Ozmeral, Rajesh Dasari, Ramnik Singh, Yu Noda, Robert M. Rioux, Yuriy Roman-Leshkov
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Publication number: 20200010860Abstract: This invention relates to a process for preparing succinate ester from a succinic acid salt present in a fermentation broth. In the first stage of this invention, renewable carbon resources are utilized to produce succinic acid in the form of a succinic acid salt through biological fermentation. The succinic acid salt present in the fermentation broth is subjected to double displacement reaction with a strong acid leading to the release of succinic acid. Succinic acid is recovered by fractional crystallization integrated with an alcohol washing step and subjected to esterification reaction to produce succinate ester which is purified by fractional distillation. The succinate ester thus obtained is converted into 1,4-butanediol, gamma-butyrolactone and tetrahydrofuran through hydrogenation reactions. The succinate ester can also be hydrolyzed to yield highly pure succinic acid.Type: ApplicationFiled: May 21, 2019Publication date: January 9, 2020Applicant: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITEDInventors: Thidarat Tosukhowong, Bin Wang, Manav Mistry, Rajesh Dasari, Zachary Wilson
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CATALYST COMPOSITION FOR A PRODUCTION PROCESS OF delta-LACTONE FROM CARBON DIOXIDE AND 1,3-BUTADIENE
Publication number: 20190321813Abstract: This present invention relates to a catalyst composition for a production process of ?-lactone from carbon dioxide and 1,3-butadiene that can efficiently catalyze the synthesis reaction of ?-lactone with good selectivity of ?-lactone, wherein said catalyst composition comprising: a) palladium metal complexes as shown in structure (I) [Formula should be inserted here] wherein, R1, R2, R3 and R4 independently represents a group selected from a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an amine group, or optionally an alkenyl group, an alkynyl group, a phenyl group, a benzyl group, or a cyclic hydrocarbon group comprising a hetero atom; and b) phosphorus compound selected from a phosphine group having a general formula [Formula should be inserted here], wherein R is selected from an alkyl group, a cycloalkyl group, or an aryl group.Type: ApplicationFiled: November 8, 2017Publication date: October 24, 2019Applicant: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITEDInventors: Sucheewin CHOTCHATCHAWANKUL, Phonpimon WONGMAHASIRIKUN, Sophon KAEOTIP, Khamphee PHOMPHRAI -
Publication number: 20190309121Abstract: This invention provides a process for manufacturing high performance polyester polyols with high proportion of renewable content derived from biological sources. The polyester polyols with high content of renewable biological materials produced according to the present invention display no color or odor issues and are used in the manufacture of two component polyurethanes, thermoplastic urethanes, polyurethane dispersions and polyester and polyester/urethane acrylates with outstanding physical properties.Type: ApplicationFiled: September 25, 2017Publication date: October 10, 2019Applicant: PTT Global Chemical Public Company LimitedInventors: Arne Matthew Terwillegar, Charliss Denniston
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Publication number: 20190264024Abstract: The present invention relates to a thermoplastic composition with improved mechanical properties in order to broaden applications of this composition, especially outdoor application. Said thermoplastic composition comprising 60 to 80 parts by weight of aromatic polycarbonate and 20 to 40 parts by weight of acrylonitrile-styrene-acrylate polymer, characterized in that said aromatic polycarbonate has linear structure and its molecular weight is in a range of 20,000 to 35,000 g/mol; and said acrylonitrile-styrene-acrylate polymer comprising 60 wt % or more of rubber grafted with styrene and acrylonitrile polymer and 40 wt % or less of styrene and acrylonitrile polymer.Type: ApplicationFiled: September 23, 2016Publication date: August 29, 2019Applicant: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITEDInventors: Jintana YUNYONGWATTANAKORN, Apisit KOSITCHAIYONG, Bunthita SUPPAIBULSUK, Ruksapong KUNANURUKSAPONG
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Publication number: 20190262812Abstract: The present invention relates to a process for preparing a catalyst for alkane aromatization providing high % conversion, high yield, high selectivity of aromatics, and high selectivity of p-xylene in xylene, wherein said process comprises the following steps: (a) contacting a zeolite with a solution of group IIIA metal salt; (b) contacting the zeolite obtained from step (a) with the solution of metal salt selected from a group VIIB metal, a group VB metal, or a mixture thereof; and (c) contacting the zeolite obtained from step (b) with alkoxysilane, characterized in that the solution of salt in step (b) comprising a glycol solvent as a reducing agent under a basic condition, and step (b) is operated at the temperature higher than 120° C.Type: ApplicationFiled: February 27, 2018Publication date: August 29, 2019Applicant: PTT Global Chemical Public Company LimitedInventor: Sitthiphong PENGPANICH
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Publication number: 20190202966Abstract: This invention relates to a composition for a preparation of polyurethane dispersion, comprising bio-based polyol as shown in structure (I) and polyhydroxy fatty acid compound as shown in structure (II): wherein, R represents a polyhydric alcohol unit that is selected from aliphatic polyhydric alcohol, alicyclic polyhydric alcohol, cyclic polyhydric alcohol, aromatic polyhydric alcohol, or optionally, cyclic polyhydroxyl having heteroatom; R\ represents a hydrocarbon unit obtained from a molecular chain of unsaturated fatty acid having 14-24 carbon atoms and having from 1-6 pairs of vicinal diol group per one molecular chain of such unsaturated fatty acid; n represents an integer from 2 to 8 of an ester group obtained from a reaction of polyhydric alcohol and unsaturated fatty acid; wherein said composition is prepared from a process comprising the steps of: i.Type: ApplicationFiled: June 16, 2016Publication date: July 4, 2019Applicant: PTT Global Chemical Public Company LimitedInventor: Papapida Pornsuriyasak
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Publication number: 20190194157Abstract: The present invention relates to a coalescing agent as represented in structure (I); wherein; n is integer from 1 to 8; R1 and R2 independently represent group selected from hydrogen atom, alkyl, alkenyl, alkynyl, phenyl, benzyl groups, or optionally cyclic hydrocarbon containing heteroatom; and Y represents group selected from alkyl, alkenyl, alkynyl, phenyl, benzyl groups, or cyclic hydrocarbon containing heteroatom. The said coalescing agent can be used in coating application with efficacy to provide smooth consistent film with chemical and scratch resistant and has no pungent odour, wherein the preparation method of this compound is simplify and employs less harmful chemicals.Type: ApplicationFiled: June 8, 2017Publication date: June 27, 2019Applicant: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITEDInventors: SOPHON KAEOTHIP, PAPAPIDA PORNSURIYASAK, VORAPONG PIMOLSIRIPHOL
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Publication number: 20190169658Abstract: The present invention relates to a novel Bacillus aerolacticus BC-001 species and a method for producing lactic acid or its salts using said bacteria, wherein the novel bacteria species can produce L-lactic acid or its salts with high optical purity from carbohydrate carbon sources, including oligosaccharide, disaccharide and monosaccharide, wherein said bacteria can grow well under an aerobic condition, tolerate to high temperature in a range of 45 to 60° C.Type: ApplicationFiled: April 22, 2016Publication date: June 6, 2019Applicants: PTT Global Chemical Public Company Limited, Chulalongkorn UniversityInventors: Nuttha Thongchul, Kentaro Kodama, Paphawee Nantarajit, Techanan Wikanda, Phatthanon Prasitchoke
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Publication number: 20190100779Abstract: This invention relates to a process for producing lactic acid or its salts that can be performed easily, reduce complicated steps, and provide high lactic acid yield and high productivity, wherein said process comprising the following steps: (a) cultivating thermotolerance Bacillus genus bacteria to obtain a seed culture; (b) increasing cell number of bacteria by inoculating the seed culture obtained from step (a) into a fermenter containing an initial carbon source under an aerobic condition; (c) fermenting the seed culture obtained from step (b) in the fermenter under a microaerobic condition to obtain lactic acid or its salts; wherein the step (b) comprising at least one addition of the carbon source under any one of the following conditions, which are independent to each other, to increase a concentration of the carbon source: —when the concentration of carbon source in the fermenter reduces to 50% or less comparing to the initial concentration.Type: ApplicationFiled: June 28, 2016Publication date: April 4, 2019Applicants: PTT Global Chemical Public Company Limited, Chulalongkorn UniversityInventors: Nuttha Thongchul, Vasana Tolieng, Phatthanon Prasitchoke