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公开(公告)号：US11827595B2
公开(公告)日：2023-11-28
申请号：US17309384
申请日：2019-11-12
摘要： A process for direct esterification of an alkyl aldehyde with an alkyl alcohol to produce an alkyl ester is disclosed. The process comprises reacting an alkyl aldehyde with an alkyl alcohol in the presence of an Au/TiOa catalyst, a base and an enal or oxygen to form an ester and an aldehyde. The process avoids liberation of water and avoids the step of oxidation of the alkyl aldehyde to an alkyl acid.
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公开(公告)号：US20230323042A1
公开(公告)日：2023-10-12
申请号：US18042389
申请日：2021-08-16
CPC分类号： C08J3/203 , C08K5/1345 , C08K5/11 , B29K2001/08 , C08K5/101 , C08J2301/10 , B29C43/24
摘要： The present application discloses a method of reducing acid and ester degradation products during calendering of cellulose ester containing plasticiser using certain additives such as primary antioxidants and metal alkanoate. The compositions comprising the additives exhibit significant reductions in acids and ester degradation products as compared to compositions not comprising the additives.
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公开(公告)号：US20230323023A1
公开(公告)日：2023-10-12
申请号：US18330028
申请日：2023-06-06
发明人： Anne-Martine Sherbeck Jackson , Rachel Elizabeth McLendon , Bruce Roger DeBruin , Michael Paul Ekart , Dale Milton Blakely , Robert Todd Harris
IPC分类号： C08G63/199 , C08G63/183 , C08G63/66
CPC分类号： C08G63/199 , C08G63/183 , C08G63/66
摘要： Copolyesters made from the direct esterification of terephthalic acid with diols including ethylene glycol, but which contain low diethylene glycol (DEG) content, and processes for making the copolyesters. The copolyesters are characterized by comprising 1.0 wt % or less of DEG without requiring the use of DEG-suppressing additives. The processes are characterized by features including operating at lower pressures and lower EG:TPA feed mole ratios in the first reaction zone, while simultaneously at higher temperatures than typical operation in order to lower incorporation of DEG into the final polymer.
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公开(公告)号：US20230303773A1
公开(公告)日：2023-09-28
申请号：US18020130
申请日：2021-07-21
CPC分类号： C08G73/10 , C08J5/18 , C08J7/0423 , C08J7/044 , C09D1/00 , C09D5/24 , C08J2379/08
摘要： Transparent, conductive barrier films are disclosed that include a polymeric substrate; an optional planarization layer, atop the polymeric substrate, and at least one dyad, atop the optional planarization layer if present, or atop the polymeric substrate, that comprises an inorganic oxide layer, and a polymethylglutarimide layer. The films of the invention are further provided with a conductive layer, atop the at least one dyad.
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25.发明公开公开(公告)号：US20230287198A1
公开(公告)日：2023-09-14
申请号：US18005698
申请日：2021-07-13
CPC分类号： C08K5/12 , C08L27/06 , C08K2201/014
摘要： The invention provides a plasticizer for use in plastic materials such as polyvinyl chloride. The plasticizer is a blend of di-(2-ethylhexyl) terephthalate (DOTP) and 2-ethylhexyl methyl terephthalate (MOTP). The blend of di-(2-ethylhexyl) terephthalate and 2-ethylhexyl methyl terephthalate provides a non-ortho-phthalate alternative to plasticizers such as diisononyl phthalate and also produces good fusion temperature, gelation point, plastisol viscosity, efficiency, plasticizer compatibility, and drying time performance.
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26.发明公开公开(公告)号：US20230265034A1
公开(公告)日：2023-08-24
申请号：US18040287
申请日：2021-08-12
CPC分类号： C07C45/50 , B01J31/185
摘要： Processes are disclosed for preparing at least one aldehyde under hydroformylation temperature and pressure conditions, comprising contacting at least one olefin with hydrogen and carbon monoxide in the presence of at least one hydrocarbon solvent or fluorinated solvent and a transition metal-based catalyst composition comprising a phospholane-phosphite ligand.
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公开(公告)号：US11732165B2
公开(公告)日：2023-08-22
申请号：US16705324
申请日：2019-12-06
IPC分类号： C09J133/08 , C09J133/12 , C09J133/06 , C09J167/02 , C09J133/26
CPC分类号： C09J133/08 , C09J133/064 , C09J133/12 , C09J133/26 , C09J167/02
摘要： This invention pertains to a curable composition comprising a first component having β-ketoester and/or malonate functionalities and a second component having two or more aldehyde functionalities. The compositions can be cured at room temperature or low temperatures to yield crosslinked networks that are capable of providing desirable properties for coating and adhesive applications. The reactive functionalities of β-ketoester, malonate, and aldehyde can be either on polymers as the main binders or on small molecules as the crosslinkers. The curable compositions desirably are either solventless or organic solvent based.
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公开(公告)号：US11708453B2
公开(公告)日：2023-07-25
申请号：US17309707
申请日：2019-12-17
发明人： Anne-Martine Sherbeck Jackson , Rachel Elizabeth McLendon , Bruce Roger DeBruin , Michael Paul Ekart , Dale Milton Blakely , Robert Todd Harris
IPC分类号： C08G63/199 , C08G63/183 , C08G63/66
CPC分类号： C08G63/199 , C08G63/183 , C08G63/66
摘要： Process for preparing copolyesters by introducing TPA, EG, and CHDM at an EG:TPA molar ratio of 2.3:1 to 2.7:1 into a reaction zone; reacting TPA with EG and CHDM at a temperature of at least 250° C. and pressure of up to 40 psi to form a first esterification product; passing the first esterification product to a reaction zone; esterifying the first esterification product at a temperature of at least 250° C. and pressure of up to 20 psi to form a second esterification product, passing the second esterification product to a reaction zone; polycondensing the second esterification product in the presence of a catalyst to form a prepolymerization product; passing the prepolymerization product to one or more reaction zones; and polycondensing the prepolymerization product in the presence of the catalyst to form a copolyester comprising 1.0 wt % or less of DEG, without requiring the use of DEG-suppressing additives.
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公开(公告)号：US20230212469A1
公开(公告)日：2023-07-06
申请号：US17996668
申请日：2021-04-13
IPC分类号： C10J3/46
CPC分类号： C10J3/466 , C10J2300/0926 , C10J2300/0959 , C10J2300/1846
摘要： Provided herein are methods of producing synthesis gas (syngas) from aplastic material. The methods generally comprise feeding a wet waste plastic and/or liquified plastic stream and molecular oxygen (O2) into a partial oxidation (POX) gasifier. The wet waste plastic generally comprises the plastic material mixed with a liquid medium and has a liquid content of at least 2 weight percent. The wet waste plastic may be in the form of a plastic-containing slurry and/or may be derived from other processes that produce plastic-containing streams. The wet waste plastic may also be combined with a quantity of coal (or pet coke) before being fed to the gasifier. A partial oxidation reaction is performed within the gasifier by reacting at least a portion of the plastic material and the molecular oxygen to form the syngas.
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公开(公告)号：US20230203281A1
公开(公告)日：2023-06-29
申请号：US18000700
申请日：2021-06-03
CPC分类号： C08L1/14 , C08L31/04 , C08K5/11 , E04F15/107 , C08L2205/22 , C08L2207/20
摘要： Disclosed is a cellulose ester-based composition, The cellulose ester-based composition of the present invention includes comprising at least 51% by weight cellulose ester based on the total weight of polymer in the composition and polyvinyl acetal. Related calendered articles and flooring articles are also described.
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