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71. 发明授权

US4012461A Process for preparing polymer powders 失效
标题翻译：制备聚合物粉末的方法
公开(公告)号：US4012461A
公开(公告)日：1977-03-15
申请号：US602211
申请日：1975-08-06
申请人： Robert A. VAN Brederode
发明人： Robert A. VAN Brederode
IPC分类号： C08J3/12 , B01J2/10 , C08J3/14 , C08F6/10 , C08F255/02
CPC分类号： C08J3/14
摘要： A process for producing fine polymer powders which comprises dissolving 1 to 40 weight percent of a polymer in a solvent at a temperature in the range of 90.degree. to 165.degree. C under autogenous conditions, cooling the solution to a temperature to precipitate the polymer and to leave in solution an amount of polymer less than that which will inhibit the formation of droplets upon atomization of the solution into a drying zone, said cooling being carried out under agitation conditions of high shear, to produce a slurry of particulate polymer and solvent, atomizing said slurry into a vaporization zone, feeding a drying gas into the vaporation zone at a temperature in the range of 90.degree. to 160.degree. C, recovering the partially dry polymer particles, drying the particles and recovering a polymer powder of less than 100 micron size.
摘要翻译：一种生产精细聚合物粉末的方法，该方法包括在自生条件下将1-40重量％的聚合物在90至165℃的温度范围内溶解在溶剂中，将溶液冷却至一定温度以沉淀聚合物，在溶液中留下一定量的聚合物小于在溶液雾化成干燥区时抑制液滴形成的聚合物，所述冷却在高剪切的搅拌条件下进行，以产生颗粒聚合物和溶剂的浆料，雾化所述浆料进入蒸发区，在90至160℃的温度范围内将干燥气体送入蒸发区，回收部分干燥的聚合物颗粒，干燥颗粒并回收小于100微米尺寸的聚合物粉末。

72. 发明授权

US3965079A Separation and recovery of products obtained in catalytic processes of preparing acrylonitrile polymers or copolymers 失效
标题翻译：在制备丙烯腈聚合物或共聚物的催化方法中获得的产物的分离和回收
公开(公告)号：US3965079A
公开(公告)日：1976-06-22
申请号：US486735
申请日：1974-07-08
申请人： Luciano Console , Enzo Chiellini , Benedetto Calcagno
发明人： Luciano Console , Enzo Chiellini , Benedetto Calcagno
IPC分类号： C08F2/00 , C08F2/10 , C08F6/00 , C08F6/06 , C08F6/10 , C08F4/40 , C08F20/44
CPC分类号： C08F6/10
摘要： Sulphur dioxide and unreacted monomer or mixture of monomers are separated and recovered from the polymer or copolymer slurry obtained by polymerizing acrylonitrile monomer or copolymerizing acrylonitrile monomer and a further ethylenically unsaturated monomer copolymerizable therewith in the presence of a catalytic system comprising sulphur dioxide or a sulphite, by a process comprising the steps of separately removing the sulphur dioxide and the monomer or mixture of monomers from the slurry in two distinct volatilization zones connected in series under decreasing subatmospheric pressures, scrubbing with water the sulphur dioxide vapors removed in the first zone and vapors of unreacted monomer or monomers removed in the second zone, and recycling the two resulting aqueous solutions to the polymerization or copolymerization medium.
摘要翻译：从在包含二氧化硫或亚硫酸盐的催化体系存在下，通过聚合丙烯腈单体或共聚丙烯腈单体和另外的可与其共聚的烯键式不饱和单体获得的聚合物或共聚物浆料中分离和回收二氧化硫和未反应的单体或单体混合物，通过一个方法包括以下步骤：在降低的低于大气压的压力下，将两个不同的挥发性区域分离地从淤浆中分离除去二氧化硫和单体或单体混合物，用水洗涤在第一区域中除去的二氧化硫蒸气和在第二区域中除去未反应的单体或单体，并将两种所得水溶液再循环到聚合或共聚介质中。

73. 发明授权

US3847845A Separation and purification of the saponified ethylene-vinyl acetate interpolymers 失效
标题翻译：蒎烯乙酸乙烯酯嵌段共聚物的分离和纯化
公开(公告)号：US3847845A
公开(公告)日：1974-11-12
申请号：US36728873
申请日：1973-06-05
申请人： KURARAY CO
发明人： NISHIOKA K , TADA R , SATO K
IPC分类号： C08F6/10 , C08F47/08
CPC分类号： C08F6/10 , Y10S260/22
摘要： WHEREIN R IS HYDROGEN OR METHYL, R'' IS -COOR, -C6H5, -CL, -CN, MELTHYL OR VINYL; THE RATIO OF (Y+Z):X IS WITHIN THE RANGE OF 1.5:1 TO 3:1 AND THE RATIO Z:Y IS WITHIN THE RANGE OF 0:1 TO 0.1:1 UNDER SUBSTANTIALLY ANHYDROUS CONDITIONS AND IN THE PRESENCE OF METHANOL WITH 0.005 TO 0.5 MOLES OF AN ALKALINE CATALYST, BASED ON THE MOL CONCENTRATION OF ACETIC ACID RADICAL IN THE INTERPOLYMER, THE DEGREE OS SPONIFICATION BEING AT LEAST 90 MOL PERCENT, WHICH COMPRISES: (A) ADMIXING WATER WITH SAID SUBSTANTIALLY AHYDROUS SOLUTION IN AN AMOUNT OF AT LEAST 5 WEIGHT PERCENT OF THE INTERPOLYMER UP TO AN AMOUNT WHICH DOES NOT CAUSE GELATION AND SEPARATION OF SAPONIFIED INTERPOLYMER IN SAID SOLUTION AT THE TEMPERATURE OF SAID SOLUTION, TO PRODUCE AN AQUEOUS METHANOL SOLUTION HAVING 15 TO 45 WEIGHT PERCENT OF SAID SAPONIFIED INTERPOLYMER, (B) SHAPING SAID SOLUTION OF SAPONIFIED INTERPOLYMER INTO A SHEET OR STRAND OF 1-10 MM. THICKNESS AND BRINGING SAID SHEET OR STRAND INTO CONTACT WITH AN AQUEOUS COAGULATING BATH TO FORM A GELLED MICROPOROUS SHEET OR STRAND, (C) WASHING SAID GELLED MICROPOROUS SHEET OR STRAND TO REMOVE THE REMAINING ALKALINE CATALYST AND ACETIC ACID SALT PRODUCED DURING SAPONIFICATION, AND (D) DRYING SAID WASHED MICROPOROUS SHEET OR STRAND.

(H4C2)X-(CH2-CH(-OOC-CH3))Y-(CH2-C(-R)(-R''))N

1. A METHOD OF SEPARATING AND PURIFYING A SANPNIFIED ETHYLENE-VINYL ACETATE INTERPOLYMER FROM A SUBSTANTIALLY ANHYDROUS SOLUTION CONTAINING 25 TO 50 WEIGHT PERCEBT OF SAID INTERPOLYMER WHICH IS OBTAINED BY SAPONIFICATION OF AN ETHYLENE-VINYL ACETATE INTERPOLYMER HAVING THE GENERAL FORMULA:

74. 发明授权

US3553248A Method of recovering acrylonitrile monomer in the production of a polymer 失效
标题翻译：在聚合物生产中回收丙烯腈单体的方法
公开(公告)号：US3553248A
公开(公告)日：1971-01-05
申请号：US3553248D
申请日：1963-07-10
申请人： ASAHI CHEMICAL IND
发明人： WAKITA EIICHI , TOKUMITSU KUNIO
IPC分类号： C08F6/10 , C08F6/16 , C08F20/44 , C07C121/32
CPC分类号： C08F6/16 , C07C253/34 , C08F2/16 , C08F20/44 , C07C255/08
摘要： A METHOD FOR THE POLYMERIZATION OF ACRYLONITRILE SAID METHOD COMPRISING POLYMERIZING ACRYLONITRILE TO PRODUCE A POLYMER SLURRY TOGETHER WITH UNPOLYMERIZED ACRYLONITRILE, EVAPORATING THE UNPOLYMERIZED ACRYLONITRILE FROM THE SLURRY, FILTERING THE SLURRY WHICH IS NOW SUBSTANTIALLY FREE OF UNPOLYMERIZED ACRYLONITRILE TO PRODUCE A FILTRATE AND A SOLID FILTERED POLYMER PRODUCT, CONDENSING THE UNPOLYMERIZED ACRYLONITRILE BY CONTACTING THE SAME WITH A COOLING MEDIUM, SAID COOLING MEDIUM BEING AT A SUFFICIENTLY LOW TEMPERATURE TO CONDENSE THE GASEOUS MONOMER AND BEING CONSTITUTED BY AT LEAST A PORTION OF SAID FILTRATE, THE CONDENSED UNPOLYMERIZED ACRYLONITRILE IN SAID COOLING MEDIUM BEING RECIRCULATED TOGETHER WITH THE REMAINING PORTION OF THE FILTRATE FOR SUBSEQUENT POLYMERIZATION WHEREBY SUBSTANTIALLY ALL OF THE ACRYLONITRILE ORIGINALLY PRESENT MAY BE POLYMERIZED.

75. 发明授权

US2941985A Two-stage devolatilization process for making alkenyl-aromatic hydrocarbon-acrylonitrile copolymers 失效
标题翻译：制备烯基 - 芳烃 - 丙烯腈共聚物的两阶段脱挥发分法
公开(公告)号：US2941985A
公开(公告)日：1960-06-21
申请号：US71376858
申请日：1958-02-06
申请人： DOW CHEMICAL CO
发明人： AMOS JAMES L , MILLER CARROLL T
IPC分类号： C08F6/10 , C08F220/44
CPC分类号： C08F6/10 , C08F220/44 , Y10S159/10

76. 发明授权

US2316670A Flash distillation of organic sulphonate solutions 失效
标题翻译：快速蒸馏有机磺酸盐溶液
公开(公告)号：US2316670A
公开(公告)日：1943-04-13
申请号：US32639440
申请日：1940-03-28
申请人： COLGATE PALMOLIVE PEET CO
发明人： BANGS COLGATE ROBERT , LOUIS BRANDT ROBERT , DWAINE ALLEN HAROLD
IPC分类号： C07C303/42 , C08F6/10
CPC分类号： C07C303/42 , Y10S159/14

77. 发明授权

US12065529B2 Purification method of solvent 有权
公开(公告)号：US12065529B2
公开(公告)日：2024-08-20
申请号：US17044494
申请日：2019-11-27
申请人： LG Chem, Ltd.
发明人： Sungkeun Jang , Changhoe Heo , Seonghun Kim , Eun Jung Joo , Donghoon Kim
IPC分类号： C08F6/06 , B01D3/32 , B01D5/00 , C08F6/04 , C08F6/10 , C08F6/12 , C08F6/16
CPC分类号： C08F6/16 , B01D3/322 , B01D5/006 , C08F6/04 , C08F6/12
摘要： The present disclosure relates to a purification method of a polymerization solvent used in and recovered from the preparation of a polyolefin resin, which can effectively remove impurities, in particular polyolefin wax, from the polymerization solvent to obtain a purified polymerization solvent with high purity, and can improve energy efficiency.

78. 发明授权

US11976154B2 Devolatilization apparatus and process 有权
公开(公告)号：US11976154B2
公开(公告)日：2024-05-07
申请号：US17152440
申请日：2021-01-19
申请人： ExxonMobil Chemical Patents Inc.
发明人： Michael K. Lyon , Hamidreza Khakdaman , Trevan D. MacArthur , Adrian Strehler , Claudio Walker
IPC分类号： C08F6/10 , B01D1/22 , B01D19/00 , C08F2/01 , C08F2/06
CPC分类号： C08F6/10 , B01D1/221 , B01D19/0036 , C08F2/01 , C08F2/06
摘要： In at least one embodiment, a devolatilization vessel includes a first set of one or more devolatilization plates and a second set of one or more devolatilization plates. A first distributor is above the first set of one or more devolatilization plates and the second set of one or more devolatilization plates. A second distributor is above the second set of one or more devolatilization plates. In at least one embodiment, a process of forming a polymer includes forming a first polymer solution having a first viscosity and forming a second polymer solution having a second viscosity. The process includes flowing the first polymer solution and the second polymer solution to a devolatilization vessel. The process includes removing volatiles from the first polymer solution and the second polymer solution in the devolatilization vessel to form a devolatilized first polymer melt and a devolatilized second polymer melt.

79. 发明授权

US11667795B2 Coating to cool a surface by passive radiative cooling 有权
公开(公告)号：US11667795B2
公开(公告)日：2023-06-06
申请号：US17392028
申请日：2021-08-02
申请人： Palo Alto Research Center Incorporated
发明人： Quentin Van Overmeere , Scott Alan Elrod , Scott E. Solberg , Gabriel Iftime , Ravi Neelakantan , Bernard D. Casse
IPC分类号： C08F2/01 , C08F6/02 , C08F6/10 , C08F6/00 , B01J8/18 , B01J8/26 , C09D5/33 , C09D5/02 , C09D133/10 , C09D129/14 , C09D7/40 , C08K3/30 , C08K3/22
CPC分类号： C09D5/004 , C09D5/024 , C09D7/69 , C09D129/14 , C09D133/10 , C08K2003/2241 , C08K2003/3045 , C08K2201/005 , C09D129/14 , C08K3/30 , C08L33/10
摘要： Disclosed herein in is a radiative cooling formulation including a first component with >55% reflectance in a wavelengths range of 0.3 to 2.5 microns, a second component with a first thermal emissivity peak value greater than 0.85 at a first wavelength in a range of 8 to 13 microns (μm), and a third component to mechanically bind together a mixture of the first component and second component.

80. 发明申请

US20220402187A1 POLYMER RECYCLATE PROCESSES AND PRODUCTS 有权
公开(公告)号：US20220402187A1
公开(公告)日：2022-12-22
申请号：US17845673
申请日：2022-06-21
申请人： EQUISTAR CHEMICALS, LP
发明人： HARILAOS MAVRIDIS , MICK C. HUNDLEY , SAMEER D. MEHTA , MARCO CONSALVI , GERHARDUS MEIER , LINDSAY E. CORCORAN , ROCIO S. GARAY , TIMOTHY J. SKILLMAN , ERIC D. DAY
IPC分类号： B29C48/00 , C10G9/00 , C08F8/50 , C08F6/10 , B29C48/80 , C08L23/06 , C08L23/12 , C08J11/12
摘要： Methods for processing HDPE and/or MDPE recyclates including, but not limited to, polyethylene and polypropylene and compositions therefrom are provided. HDPE and/or MDPE recyclate feedstocks can be visbroken to improve processing characteristics and/or devolatilized to remove waste byproducts to produce processed HDPE recyclate and/or processed MDPE recyclates. Processed HDPE recyclate and/or processed MDPE recyclates are compounded with pre-consumer polyolefins to produce blend compositions having acceptable or even improved processing characteristics. Such pre-consumer polyolefins can also be visbroken to further tailor processing characteristics of such polymer blends. A combination of extruders and/or extruder zones can be used at the same or different locations for visbreaking and/or compounding of both HDPE and/or MDPE recyclate and/or pre-consumer polyolefins.

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