-
公开(公告)号：US20240279404A1
公开(公告)日：2024-08-22
申请号：US18576137
申请日：2022-06-27
发明人： Andreas Seidel , Jan Heijl , Annabelle Bertin
CPC分类号： C08G81/027 , C08G64/14 , C08G64/24 , C08G85/004
摘要： The present invention relates to an aromatic polycarbonate containing: A) structural units with free COOH functionality which are derived from a hydroxybenzoic acid and are present as end groups, and B) structural units derived from a hydroxybenzoic acid, wherein component B) is chosen from at least one representative from B1) structural units with esterified COOH functionality which are derived from a hydroxybenzoic acid and are present as end groups, and B2) structural units derived from a hydroxybenzoic acid which are incorporated into the polymer chain via an ester or acid anhydride group, wherein the molar ratio of the quantity of component A to the quantity of component B ranges from 1.3 to 50, as well as copolymers and thermoplastic moulding compounds and moulds containing such a polycarbonate or copolymer, a method for preparing the polycarbonate and a method and use of the polycarbonate to prepare the copolymers.
-
公开(公告)号：US20240254281A1
公开(公告)日：2024-08-01
申请号：US18290498
申请日：2022-05-30
CPC分类号： C08G64/205 , B01J19/006 , B01J19/18 , C08G64/24 , B01J2219/00779 , B01J2219/029
摘要： A reactor for the manufacture of interfacial polycarbonate by reacting phosgene and one or more bisphenols in a liquid phase, the reactor comprising a reactor vessel and reactor internals, wherein at least part of the inner surface of the reactor and/or part of the surface of the reactor internals is manufactured from or cladded with a titanium alloy comprising palladium.
-
3.发明授权公开(公告)号：US12024629B2
公开(公告)日：2024-07-02
申请号：US17059926
申请日：2019-05-31
发明人： Koichi Suga , Yumi Nakayama , Aki Yamada
IPC分类号： C08L69/00 , C08G64/04 , C08G64/08 , C08G64/10 , C08G64/12 , C08G64/14 , C08G64/20 , C08G64/24 , C08K5/17 , C08L27/18 , C08L83/04
CPC分类号： C08L69/00 , C08G64/045 , C08G64/081 , C08G64/10 , C08G64/12 , C08G64/14 , C08G64/20 , C08G64/24 , C08K5/17 , C08L27/18 , C08L83/04 , C08G2261/148 , C08L2201/02 , C08L2201/08 , C08L2201/10 , C08L2205/02 , C08L69/00 , C08L83/04 , C08K5/42
摘要： Provided is a polycarbonate-based resin having a ratio of an amine terminal to all terminal groups of 1.0 mol % or more.
-
公开(公告)号：US11634538B2
公开(公告)日：2023-04-25
申请号：US17262277
申请日：2019-07-17
发明人： Shun Ishikawa
摘要： The purpose of the present invention is to provide: a polycarbonate resin which has a narrow molecular weight distribution and in which the formation of low molecular weight oligomers is suppressed; and a method for producing the polycarbonate resin.
According to the present invention, provided are a polycarbonate resin containing a structural unit represented by general formula (1), wherein the molecular weight distribution value (Mw/Mn) is 6.0 or less, and the content of oligomers having a molecular weight of less than 1,000 is suppressed to 0.50 mass % or less; and a method for producing the polycarbonate. (In general formula (1), R1-26 represent hydrogen, fluorine, chlorine, bromine, iodine, a C1-9 alkyl group, a C6-12 aryl group, a C1-5 alkoxy group, a C2-5 alkenyl group, or a C7-17 aralkyl group).-
公开(公告)号：US20220185955A1
公开(公告)日：2022-06-16
申请号：US17439889
申请日：2020-03-30
发明人： Rolf Bachmann , Volker Michele , Jan Heijl , Felix Cock
摘要： The present invention relates to a process for producing polycarbonate according to a phase boundary process, from at least one dihydroxydiaryl alkane, phosgene, at least one catalyst and at least one chain terminator, the process allowing a reduction in the phosgene excess by a specific energy input during the dispersion of the aqueous and organic phases. The process also produces a polycarbonate with a low proportion of oligomers and a low proportion of Di-chain terminator carbonate.
-
公开(公告)号：US20210371585A1
公开(公告)日：2021-12-02
申请号：US16766102
申请日：2018-12-12
发明人： Jan Heijl , Rolf Bachmann , Volker Michele , Felix Cock
摘要： A process for preparing polycarbonate by the phase interface process in the presence of at least one catalyst, wherein immediately after the optionally first addition of the at least one catalyst, from 0.01 to 20 J/kg of mixing energy is introduced into the system comprising the at least one catalyst within a time of from 2 to 1200 s. A mixture, an organic phase, and a process for distributing at least one catalyst in a system comprising an organic phase and an aqueous phase are also disclosed herein.
-
公开(公告)号：US20210317264A1
公开(公告)日：2021-10-14
申请号：US17262277
申请日：2019-07-17
发明人： Shun ISHIKAWA
摘要： The purpose of the present invention is to provide: a polycarbonate resin which has a narrow molecular weight distribution and in which the formation of low molecular weight oligomers is suppressed; and a method for producing the polycarbonate resin.
According to the present invention, provided are a polycarbonate resin containing a structural unit represented by general formula (1), wherein the molecular weight distribution value (Mw/Mn) is 6.0 or less, and the content of oligomers having a molecular weight of less than 1,000 is suppressed to 0.50 mass % or less; and a method for producing the polycarbonate. (In general formula (1), R1-26 represent hydrogen, fluorine, chlorine, bromine, iodine, a C1-9 alkyl group, a C6-12 aryl group, a C1-5 alkoxy group, a C2-5 alkenyl group, or a C7-17 aralkyl group.)-
公开(公告)号：US10597489B2
公开(公告)日：2020-03-24
申请号：US16103457
申请日：2018-08-14
申请人： FUJIFILM Corporation
摘要： Disclosed is a polycarbonate resin having a constitutional unit represented by Formula (1). The resin provides a molded article having a sufficiently low Abbe number and having high abnormal dispersibility may be molded. Y1 and Y2 are an oxygen, sulfur, nitrogen or carbon atom; Z is an atomic group for forming a 5- to 7-membered ring; R5 to R8 represent a substituent; and Ar11 and Ar12 represent an aryl or heteroaryl group.
-
公开(公告)号：US10544259B2
公开(公告)日：2020-01-28
申请号：US15748198
申请日：2016-08-31
摘要： An aromatic polycarbonate, having an aromatic polycarbonate backbone, can comprise: less than or equal to 5 ppm of polymeric chlorine attached to the aromatic polycarbonate backbone; less than 0.5 ppm of dichloromethane, less than 5 ppm of monohydric phenols, and less than 0.5 ppm of aromatic compounds containing no chlorine based on the total weight of the aromatic polycarbonate, wherein the aromatic compounds are compounds other than the aromatic polycarbonate.
-
公开(公告)号：US10196516B2
公开(公告)日：2019-02-05
申请号：US15500242
申请日：2015-12-03
申请人： LG CHEM, LTD.
发明人： Young Young Hwang , Hyong Min Bahn , Jung Jun Park , Moo Ho Hong , Byoung Kyu Chun , Un Ko , Ki Jae Lee , Young Wook Son
IPC分类号： C08L69/00 , C08L83/04 , C08G64/18 , C08G64/38 , C08G77/448 , C08J5/00 , C08G64/16 , C08G64/06 , C08G64/30 , C08G64/08 , C08K5/3475 , C08G64/24 , C08L83/10 , C08K5/00 , C08G64/22 , C08G77/14 , C08L83/06 , C08J5/08 , C08K5/521 , C08L51/04 , C08K5/42 , C09K21/14 , C08G77/20
摘要： Disclosed are a copolycarbonate resin composition having improved mechanical properties such as impact resistance and chemical resistance while maintaining resin flowability, and an article including the same, where the copolycarbonate resin composition comprises a copolycarbonate resin including an aromatic polycarbonate-based first repeating unit and one or more aromatic polycarbonate-based second repeating unit having at least one siloxane bond; and a polysiloxane polymer containing a hydrocarbon-based functional group having 2 or more carbon atoms.
-
-
-
-
-
-
-
-
-
搜索结果
342 条记录 (耗时 0.024 秒)
