-
1.发明申请公开(公告)号：US20200148870A1
公开(公告)日：2020-05-14
申请号：US16617232
申请日：2018-05-25
发明人： Sangita Nandi , Rukmini Khatokar , Anirban Ganguly , Debasish Banerjee , Susanta Mitra , Stephen D. Pask
IPC分类号： C08L23/16
摘要： The present invention relates to a process for the production of an ethylene-propylene-diene terpolymer (EPDM) composition in a reaction vessel comprising the following steps in this order: (a) supplying a quantity of a first composition comprising an ethylene copolymer or a propylene copolymer and a first peroxide to the reaction vessel; (b) supplying a quantity of a second composition comprising EPDM and a second peroxide to the reaction vessel; or (a) supplying a quantity of a second composition comprising EPDM and a second peroxide to the reaction vessel; (b) supplying a quantity of a first composition comprising an ethylene copolymer or a propylene copolymer and a first peroxide to the reaction vessel; and (c) exposing the contents of the reaction vessel under stirring to a temperature of 100-200° C.; wherein the ethylene copolymer is a copolymer comprising polymeric units derived from ethylene and polymeric units derived from a mono-olefinic compound comprising 3 to 10 carbon atoms, and wherein the propylene copolymer is a copolymer comprising polymeric units derived from propylene and polymeric units derived from a mono-olefinic compound comprising 2 carbon atoms or 4-10 carbon atoms. Such process allows for the production of an oil-extended EPDM composition having a certain high Mooney viscosity whilst still using an EPDM as obtained from the polymerisation process having a relatively moderate Mooney viscosity.
-
2.发明授权公开(公告)号：US11591456B2
公开(公告)日：2023-02-28
申请号：US17047584
申请日：2019-04-24
发明人： Anantharaman Dhanabalan , Maria Soliman , Anirban Ganguly , Sangita Nandi , Prem Prakash Pathak , Kummetha Raghunatha Reddy , Abderrahman Meddad , Sadasivam Gopalakrishnan
摘要： Polymer blends, methods of making the polymer blends, and articles of manufacture that include the polymer blends are described. A polymer blend can include a high density polyethylene (HDPE) polymer and a random block copolymer. The random block copolymer can include two different saturated alkane blocks between aromatic blocks (e.g., two styrenic blocks).
-
公开(公告)号：US20240067819A1
公开(公告)日：2024-02-29
申请号：US18270563
申请日：2021-12-16
CPC分类号： C08L69/00 , C08L67/02 , C08L2205/025 , C08L2205/03 , C08L2205/035 , C08L2205/24 , C08L2207/20
摘要： The present invention relates to a heat resistant composition comprising polycarbonate and polyester, wherein said polyester comprises poly(ethylene terephthalate), that is substantially free of isophthalic acid moieties. The composition has a Vicat softening point, as determined by ISO-306 B120 at a load of 50N and a speed of 120° C./hr that is higher than the Vicat softening point of an otherwise identical composition wherein the poly(ethylene terephthalate) component contains isophthalic acid moieties. The present invention further relates to an article comprising or consisting of such a composition.
-
公开(公告)号：US11898025B2
公开(公告)日：2024-02-13
申请号：US17291037
申请日：2019-11-04
发明人： Anantharaman Dhanabalan , Shaneesh Vadake Kulangara , Maria Soliman , Radha Kamalakaran , Anshita Sudarshan , Sadasivam Gopalakrishnan , Anirban Ganguly
IPC分类号： C08L23/06 , C08G77/448 , C08L83/10
CPC分类号： C08L23/06 , C08G77/448 , C08L83/10 , C08L2207/062
摘要： A polyethylene composition having increased environmental stress crack resistance comprises a polymer blend of a multimodal high density polyethylene (HDPE) and an additive of at least one of a polycarbonate-siloxane copolymer, a polyethylene glycol (PEG) having an average molecular weight (Mw) of at least 2000, and a random block copolymer comprising two different saturated alkane blocks between two aromatic hydrocarbon blocks. The additive is present in the polymer blend in an amount of from 1 wt. % or less by weight of the polymer blend.
-
公开(公告)号：US10961377B2
公开(公告)日：2021-03-30
申请号：US16617232
申请日：2018-05-25
发明人： Sangita Nandi , Rukmini Khatokar , Anirban Ganguly , Debasish Banerjee , Susanta Mitra , Stephen D. Pask
IPC分类号： C08L23/16
摘要： The present invention relates to a process for the production of an ethylene-propylene-diene terpolymer (EPDM) composition in a reaction vessel comprising the following steps in this order: (a) supplying a quantity of a first composition comprising an ethylene copolymer or a propylene copolymer and a first peroxide to the reaction vessel; (b) supplying a quantity of a second composition comprising EPDM and a second peroxide to the reaction vessel; or (a) supplying a quantity of a second composition comprising EPDM and a second peroxide to the reaction vessel; (b) supplying a quantity of a first composition comprising an ethylene copolymer or a propylene copolymer and a first peroxide to the reaction vessel; and (c) exposing the contents of the reaction vessel under stirring to a temperature of 100-200° C.; wherein the ethylene copolymer is a copolymer comprising polymeric units derived from ethylene and polymeric units derived from a mono-olefinic compound comprising 3 to 10 carbon atoms, and wherein the propylene copolymer is a copolymer comprising polymeric units derived from propylene and polymeric units derived from a mono-olefinic compound comprising 2 carbon atoms or 4-10 carbon atoms. Such process allows for the production of an oil-extended EPDM composition having a certain high Mooney viscosity whilst still using an EPDM as obtained from the polymerisation process having a relatively moderate Mooney viscosity.
-
公开(公告)号：US20240150571A1
公开(公告)日：2024-05-09
申请号：US18276964
申请日：2022-01-18
发明人： Anirban Ganguly , Roshan Kumar Jha , Susanta Mitra
IPC分类号： C08L67/02
CPC分类号： C08L67/02 , C08L2203/30 , C08L2205/035 , C08L2207/53
摘要： The present invention relates to a composition comprising at least 30 wt. % aromatic polycarbonate and at most 70 wt. % of polyester comprising poly(ethylene terephthalate), from 0.1-20 wt. % of an impact modifier, and from 0.05 to 1.0 wt. % of a monovalent ionomer comprising repeat units derived from ethylene, a dicarboxylic acid or derivative thereof, a monocarboxylic acid, and optionally a comonomer; based on the weight of the composition. The present invention further relates to an article comprising or consisting of such a composition.
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.014 秒)
