专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明授权

US11648722B2 Process for removing volatile components from an olefin polymer and article obtained 有权
公开(公告)号：US11648722B2
公开(公告)日：2023-05-16
申请号：US16499382
申请日：2018-05-25
申请人： Borealis AG
发明人： Velichko Hristov , Mohammad Al-Haj Ali
IPC分类号： B29C48/76 , B29C48/405 , B29C48/41 , B29C48/92 , B29C48/80 , B29B7/84 , C08F6/28 , C08F210/16 , B29C48/43 , B29C48/04 , B29C48/05 , B29C48/00 , B29C48/345 , B29C48/55 , B29C48/625 , B29B9/06 , B29K23/00
CPC分类号： B29C48/767 , B29B7/845 , B29C48/405 , B29C48/41 , B29C48/762 , B29C48/802 , B29C48/92 , C08F6/28 , C08F210/16 , B29B9/065 , B29C48/0022 , B29C48/04 , B29C48/05 , B29C48/345 , B29C48/43 , B29C48/55 , B29C48/625 , B29C2948/92485 , B29K2023/08
摘要： The invention relates to a process for removal of volatile components from an olefin polymer, the process carried out in an extruder comprising at least one vacuum degassing zone, said process comprising the steps of: (a) introducing a stream of an olefin polymer into the extruder; (b) extruding the olefin polymer in the extruder at a temperature which is higher than the melting temperature of the olefin polymer but lower than the decomposition temperature of the olefin polymer, thereby producing an olefin polymer melt having reduced amount of volatile components, wherein the process in the extruder has a residence time distribution broadness (σ2) in the range of 800 to 4000 as define by equation (1) wherein: σ2 is the residence time distribution broadness, T is the mean residence time, t is the interval of residence time a fluid element of the olefin polymer spends in the extruder, E(t) is the residence time distribution function, and wherein the process optionally comprises a step (c) where the melt of the olefin polymer is passed through a die zone to a pelletizer for pelletizing the obtained olefin polymer.

σ2=∫0∞(t−τ)2E(t)dt equation (1)

32. 发明授权

US11407889B2 Polymer and preparation method and application thereof 有权
公开(公告)号：US11407889B2
公开(公告)日：2022-08-09
申请号：US17150831
申请日：2021-01-15
申请人： SHENZHEN UNIVERSITY
发明人： Shaojun Chen , Heng Chen , Junxian Huang
IPC分类号： C08L33/12 , C08F220/58 , C08F226/06 , C08F6/28 , C08F220/36 , C08J5/18
摘要： Provided are a polymer having ultraviolet absorption functionality and preparation method thereof; specifically, three monomers having different ultraviolet absorption bands are used for copolymerization, achieving a significant expansion of the ultraviolet absorption range and achieving the effect of full-band ultraviolet shielding. The obtained polymer film has strong visible light transmittance, fluorescence, easy processing, excellent stability, and remarkable ultraviolet shielding performance, and can be broadly applied in such areas as aviation, construction, agriculture, and optical devices.

33. 发明申请

US20210403329A1 SYSTEMS FOR PRODUCING ADVANCED CARBON MATERIALS AT CARBON SOURCE LOCATIONS 有权
公开(公告)号：US20210403329A1
公开(公告)日：2021-12-30
申请号：US17447324
申请日：2021-09-10
申请人： CARBON HOLDINGS INTELLECTUAL PROPERTIES, LLC
发明人： Charles Agee Atkins , Garrett W. Lindemann , Matthew Targett
IPC分类号： C01B32/336 , C01B32/184 , C01B3/02 , G01N33/22 , C10C3/00 , D01F9/12 , C01B32/50 , C01B32/30 , C01B32/20 , C01B32/182 , C01B32/158 , C10B53/04 , C01B32/205 , C01B32/05 , C01B32/154 , C01B32/16 , C08F6/28 , C10B53/00 , C10B57/08 , D01F9/15 , C08F10/02 , C08F10/06 , C08F20/44 , C10G1/00 , C10G1/02 , C10G1/04
摘要： A method of producing advanced carbon materials can include extracting a coal sample from a location, performing a spectral analysis on the coal sample, determining one or more desired advanced carbon materials based at least in part on spectral analysis, extracting an amount of coal from the location, beneficiating the amount of coal, and processing the beneficiated amount of coal to produce the one or more desired advanced carbon materials from at least some of the amount of coal.

34. 发明授权

US11014999B2 Systems and methods for processing fluoropolymer materials and related workpieces 有权
公开(公告)号：US11014999B2
公开(公告)日：2021-05-25
申请号：US16381328
申请日：2019-04-11
申请人： Inhance Technologies, LLC
发明人： Subramanian Iyer , Andrew M. Thompson , Adrian R. Samaniego
IPC分类号： C08F114/26 , B01J8/00 , B01J8/02 , C08F6/28
摘要： A method for removing perfluorinated compounds from a fluoropolymer material is provided. The method includes the steps of: (a) providing the fluoropolymer material in a chamber; (b) providing an anaerobic environment in the chamber; and (c) providing a fluorination gas in the chamber, thereby exposing the fluoropolymer material to the fluorination gas. The method results in the removal the perfluorinated compounds from the fluoropolymer material.

35. 发明申请

US20210095058A1 PROCESS FOR REMOVING VOLATILE COMPONENTS FROM AN OLEFIN POLYMER AND ARTICLE OBTAINED 有权
公开(公告)号：US20210095058A1
公开(公告)日：2021-04-01
申请号：US16499382
申请日：2018-05-25
申请人： Borealis AG
发明人： Velichko Hristov , Mohammad Al-Haj Ali
IPC分类号： C08F6/28 , C08F210/16 , B29C48/80 , B29B7/84 , B29C48/76
摘要： The invention relates to a process for removal of volatile components from an olefin polymer, the process carried out in an extruder comprising at least one vacuum degassing zone, said process comprising the steps of: (a) introducing a stream of an olefin polymer into the extruder; (b) extruding the olefin polymer in the extruder at a temperature which is higher than the melting temperature of the olefin polymer but lower than the decomposition temperature of the olefin polymer, thereby producing an olefin polymer melt having reduced amount of volatile components, wherein the process in the extruder has a residence time distribution broadness (σ2) in the range of 800 to 4000 as define by equation (1) wherein: σ2 is the residence time distribution broadness, T is the mean residence time, t is the interval of residence time a fluid element of the olefin polymer spends in the extruder, E(t) is the residence time distribution function, and wherein the process optionally comprises a step (c) where the melt of the olefin polymer is passed through a die zone to a pelletizer for pelletizing the obtained olefin polymer. σ2=∫0∞(t−τ)2E(t)dt equation (1)

36. 发明授权

US10829630B2 Super absorbent polymer 有权
公开(公告)号：US10829630B2
公开(公告)日：2020-11-10
申请号：US15770359
申请日：2017-01-03
申请人： LG Chem, Ltd.
发明人： Sung Jong Seo , Chang Sun Han , Hyemin Lee , Hyung Ki Yoon
IPC分类号： C08L33/08 , C08J3/075 , C08J3/24 , C08F6/28 , A61L15/60 , C08J3/12 , C08F2/44 , C08F2/10 , C08F6/00 , A61F13/53 , C08F20/06 , C08F20/18
摘要： The present invention relates to a super absorbent polymer which maintains excellent absorption performance and retains physical properties even after being physically damaged by an external force. The super absorbent polymer comprises: a base polymer powder including a first cross-linked polymer of a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups; and a surface cross-linked layer formed on the base polymer powder and including a second cross-linked polymer in which the first cross-linked polymer is further cross-linked via an alkylene carbonate having 2 to 5 carbon atoms, wherein the super absorbent polymer satisfies predetermined physical properties.

37. 发明授权

US10184015B2 Process for producing (meth)acrylic resin composition 有权
公开(公告)号：US10184015B2
公开(公告)日：2019-01-22
申请号：US15553714
申请日：2016-02-26
申请人： KURARAY Co., Ltd.
发明人： Hiroshi Ozawa , Yasuhito Kitade , Shouji Tanaka
IPC分类号： C08F6/28 , C08F20/14 , C08F2/02 , C08F6/10 , C08F220/14
摘要： A method for producing a (meth)acrylic resin composition, comprising: continuously feeding reaction starting materials to a tank reactor, the reaction starting materials comprising a polymerizable monomer component, a chain transfer agent and a radical polymerization initiator, the polymerizable monomer component comprising 50 to 100% by mass of methyl methacrylate, 0 to 20% by mass of an acrylic acid alkyl ester and 0 to 30% by mass of an additional monomer; conducting bulk polymerization of the polymerizable monomer component at a polymerization conversion ratio of 40 to 70% by mass to obtain a liquid containing a (meth)acrylic resin; continuously feeding the resulting liquid to a vented extruder to separate volatile component from the (meth)acrylic resin; conducting distillation using an atmospheric distillation column to separate the volatile component into a high boiling fraction (C1) and a low boiling fraction (A1); and conducting distillation using a vacuum distillation column having a pressure of −50 kPaG to −101 kPaG at the top of the vacuum distillation column to separate the high boiling fraction (C1) into a high boiling fraction (C2) and a low boiling fraction (A2); reusing the low boiling fraction (A1) and the low boiling fraction (A2) as part of the reaction starting materials.

38. 发明授权

US09914796B2 Method for producing (meth)acrylic resin composition 有权
公开(公告)号：US09914796B2
公开(公告)日：2018-03-13
申请号：US14411653
申请日：2013-06-28
申请人： KURARAY CO., LTD.
发明人： Hiroshi Ozawa , Shouji Tanaka , Yasuhito Kitade
IPC分类号： C08F220/18 , C08F220/14 , C08F6/28 , C08F2/02 , G02B1/04 , C08F6/00 , C08F2/01 , C08F120/14
CPC分类号： C08F220/18 , C08F2/01 , C08F2/02 , C08F6/005 , C08F120/14 , C08F220/14 , G02B1/045 , C08L33/12 , C08F210/14
摘要： A method of producing a (meth)acrylic resin composition. The method comprises a step of continuously feeding a monomer mixture comprising 80 to 100% by mass of methyl methacrylate and 20 to 0% by mass of an alkyl acrylate to a tank reactor and bulk polymerizing the monomer mixture until obtaining a polymerization conversion of 40 to 70% by mass to prepare a reaction product; continuously discharging the reaction product, and heating the reaction product to 200° C. to 270° C. with a heater, and then separating the unreacted monomer with a extruder equipped with a vent; and transferring the separated unreacted monomer entrained by an inert gas flow to reuse the separated unreacted monomer as a raw material of the monomer mixture.

39. 发明申请

US20170226237A1 METHOD FOR PRODUCING (METH)ACRYLIC RESIN COMPOSITION 审中-公开
公开(公告)号：US20170226237A1
公开(公告)日：2017-08-10
申请号：US15501586
申请日：2015-08-06
申请人： KURARAY CO., LTD.
发明人： Yasuhito KITADE , Hiroshi OZAWA , Shouji TANAKA
IPC分类号： C08F6/28 , C08K5/09 , C08K5/101
CPC分类号： C08F6/28 , C08F2/02 , C08F2/38 , C08F6/005 , C08F20/14 , C08J3/203 , C08K5/09 , C08K5/101 , C08F220/14 , C08L33/12
摘要： A (meth)acrylic resin composition is obtained by a method comprising: continuously feeding a raw material solution essentially comprising methyl methacrylate, a chain transfer agent and a radical polymerization initiator, and optionally comprising an acrylic acid alkyl ester in a mass ratio of the acrylic acid alkyl ester to the methyl methacrylate of 0/100 to 20/80 into a tank reactor to allow bulk polymerization to proceed in the tank reactor at a polymerization conversion ratio of 40 to 70% by mass to obtain a reaction product while continuously discharging the reaction product from the tank reactor; heating the discharged reaction product with a heat exchanger; removing volatile matter from the heated reaction product; filtrating a liquid additive through a filter; and adding the filtrated liquid additive to the reaction product from which the volatile matter has been removed.

40. 发明授权

US09714324B2 Method for the production of ABS compositions having an improved surface following storage in a warm-humid environment 有权
公开(公告)号：US09714324B2
公开(公告)日：2017-07-25
申请号：US14764618
申请日：2014-02-05
申请人： COVESTRO DEUTSCHLAND AG
发明人： Hans-Juergen Thiem , Ingmar Hermsdorfer , Birgit Mannel , Andreas Seidel , Eckhard Wenz , Hans-Juergen Klankers , Lars Frye , Hartwig Kempkes
IPC分类号： C08J3/20 , C08J3/00 , C08F6/00 , C08F6/28 , C08L69/00
CPC分类号： C08J3/005 , C08F6/008 , C08F6/28 , C08J3/203 , C08J2369/00 , C08J2433/20 , C08J2455/02 , C08L69/00 , C08L2205/025 , C08L2205/035 , C08L55/02 , C08L25/12
摘要： The invention relates to a method for producing compositions containing vinyl-aromatic copolymers that are obtained in an emulsion polymerization process and comprise production-related salt inclusions. Said compositions are characterized by improved surface quality following storage in a warm-humid environment and are therefore suitable for producing molded articles having a class A surface that remains flawless over time.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式