公开(公告)号：US11993672B2

公开(公告)日：2024-05-28

申请号：US17553687

申请日：2021-12-16

申请人： W.R. GRACE & CO.-CONN.

发明人： Linfeng Chen ,  Tak W. Leung ,  Tao Tao ,  Kuanqiang Gao

IPC分类号： C08F4/64 ,  C08F4/00 ,  C08F4/16 ,  C08F4/60 ,  C08F110/06 ,  C08F4/609 ,  C08F4/642

CPC分类号： C08F4/00 ,  C08F4/16 ,  C08F110/06 ,  C08F4/6094 ,  C08F4/6421 ,  C08F4/6425 ,  C08F4/6426 ,  C08F110/06 ,  C08F2500/12 ,  C08F110/06 ,  C08F4/651 ,  C08F110/06 ,  C08F4/6465 ,  C08F110/06 ,  C08F4/6494

摘要： Disclosed are catalyst compositions having an internal electron donor which includes a 3,6-di-substituted-1,2-phenylene aromatic diester. Ziegler-Natta catalyst compositions containing the present catalyst compositions exhibit very high hydrogen response, high activity, high selectivity and produce propylene-based olefins with high melt flow rate.

公开(公告)号：US20230374283A1

公开(公告)日：2023-11-23

申请号：US18030255

申请日：2021-10-14

申请人： W.R. Grace & Co.-Conn.

发明人： Jing ZHONG ,  John KAARTO ,  Jonathan REEDS ,  Amaia MONTOYA

IPC分类号： C08L23/12

CPC分类号： C08L23/12 ,  C08L2205/025 ,  C08L2314/02 ,  C08L2203/30 ,  B65D11/20

摘要： Polymer compositions are disclosed that contain a heterophasic polypropylene polymer. The polymer composition includes a first polymer phase that may comprise a polypropylene homopolymer and a second polymer phase that may comprise a rubber-like propylene-ethylene random copolymer. The polymer composition is made using Ziegler-Natta catalyst that results in a dramatically reduced VOC and oligomer content.

公开(公告)号：US20230312782A1

公开(公告)日：2023-10-05

申请号：US18011701

申请日：2021-06-29

申请人： W.R. Grace & Co.-Conn.

发明人： Zhiru MA

IPC分类号： C08F110/06 ,  C08L23/12 ,  C08J3/12

CPC分类号： C08F110/06 ,  C08L23/12 ,  C08J3/12 ,  C08L2205/025 ,  C08J2323/12 ,  C08J2423/12

摘要： Phthalate-free polypropylene homopolymers and compositions incorporating the homopolymers are described. The phthalate-free polypropylene homopolymers exhibit high molecular weight as well as low XS content. Composition incorporating the phthalate-free polypropylene homopolymer can have relatively high stiffness properties. In addition, the polypropylene compositions can have good melt flow characteristics. Phthalate-free compositions including the homopolymers can be advantageously utilized in forming containers and other articles in food contacting, medical, and personal care applications.

公开(公告)号：US11498891B2

公开(公告)日：2022-11-15

申请号：US17263279

申请日：2019-08-06

申请人： W.R. GRACE & CO.-CONN

发明人： Stephen R. Schmidt

IPC分类号： C07C29/17 ,  B01J8/02 ,  B01J21/02 ,  B01J35/02 ,  B01J37/00 ,  B01J37/04 ,  B01J37/08

摘要： The present invention relates to a process for making 1,4-butanediol. The process may include reacting a solution comprising 1,4-butynediol with hydrogen in a presence of a catalyst. The catalyst may include cerium.

公开(公告)号：US20220162356A1

公开(公告)日：2022-05-26

申请号：US17609139

申请日：2020-05-07

申请人： W.R. Grace & Co.-CONN.

发明人： Vladimir MARIN

IPC分类号： C08F10/06

摘要： An activated solid catalyst component is disclosed formed from a magnesium compound, a titanium compound, an organosilicon compound, a supportive electron donor, and at least one internal electron donor. The solid catalyst component is activated to include titanium and carbon bonds by reaction with an activation agent, such as an aluminum compound. In one embodiment, small amounts of polymer are polymerized with the catalyst component during activation. The activated catalyst component is stable and, when formed, can later be used to produce various polyolefin polymers. The activated catalyst component has controlled reaction kinetics so that the catalyst does not overheat and degrade during initial polymerization.

公开(公告)号：US11299612B2

公开(公告)日：2022-04-12

申请号：US17046247

申请日：2019-04-17

申请人： W.R. Grace & Co.-Conn.

发明人： John Kalevi Kaarto ,  Jing Zhong ,  Amaia Montoya Goni

IPC分类号： C08L23/16 ,  C08L23/14

摘要： Polypropylene polymer compositions are disclosed that can be formulated to have excellent transparency properties in conjunction with excellent impact resistance properties. The polypropylene polymer compositions are heterophasic compositions containing a first phase polymer combined with a second phase polymer. The first phase polymer is a polypropylene and alpha-olefin copolymer while the second phase polymer is also a polypropylene and alpha-olefin random copolymer. The first phase polymer contains ethylene in an amount less than 5% by weight and is present in an amount greater than the second phase polymer. The second phase polymer has elastomeric properties.

公开(公告)号：US20210017405A1

公开(公告)日：2021-01-21

申请号：US16634363

申请日：2018-08-03

申请人： W.R. Grace & Co.-Conn.

发明人： Feng Gu ,  James Neil Pryor

IPC分类号： C09D7/42 ,  C09D7/61 ,  C09D7/40 ,  C09D7/62 ,  C09D15/00 ,  C09C1/30 ,  B05D5/02

摘要： Improved silica-based matting agents are disclosed. The matting agents are useful in waterborne coatings composition to provide exceptional properties to a wood based substrate. Films resulting from the silica-based matting agents on a wood substrate unexpectedly provide improved chemical resistance and/or film clarity to the surface of the wood substrate. Methods of making and using the matting agents are also disclosed.

公开(公告)号：US10532350B2

公开(公告)日：2020-01-14

申请号：US15504715

申请日：2015-08-21

申请人： W. R. Grace & Co.-Conn.

发明人： Qiuhua Zhang ,  Manoj Koranne

IPC分类号： C01B39/54 ,  B01J29/85 ,  B01J37/00 ,  B01J37/04 ,  B01J37/06 ,  B01J37/08 ,  B01J37/10 ,  C07C1/20 ,  B01J29/70

摘要： A method for synthesizing small crystals of silicoaluminophosphate-34 (SAPO-34) molecular sieves with high structural purity. The method includes first forming a slurry comprising monoisopropanolamine. Then, the slurry is aged to form an aged slurry. Finally, crystallization of silicoaluminophosphate molecular sieves comprising the SAPO-34 molecular sieves is induced from the aged slurry.

公开(公告)号：US09045570B2

公开(公告)日：2015-06-02

申请号：US14022425

申请日：2013-09-10

申请人： W.R. Grace & Co-Conn

发明人： Linfeng Chen ,  Tak W. Leung ,  Tao Tao

IPC分类号： C07C309/00 ,  C08F4/76 ,  C08F110/06

CPC分类号： C08F4/6494 ,  C08F4/76 ,  C08F110/06 ,  C08F4/651 ,  C08F4/6465

摘要： Disclosed are procatalyst compositions having an internal electron donor which include a substituted phenylene aromatic diester and optionally an electron donor component. Ziegler-Natta catalyst compositions containing the present procatalyst compositions exhibit high activity and produce propylene-based olefins with broad molecular weight distribution.

摘要翻译： 公开了具有内电子给体的前催化剂组合物，其包括取代的亚苯基芳族二酯和任选的电子给体组分。 包含本发明的前催化剂组合物的齐格勒 - 纳塔催化剂组合物表现出高活性并产生具有宽分子量分布的丙烯基烯烃。

公开(公告)号：US08993656B2

公开(公告)日：2015-03-31

申请号：US13144200

申请日：2010-01-15

申请人： Josephine Cheung ,  Denise Silva ,  Byong-Wa Chun ,  Masahiro Sato

发明人： Josephine Cheung ,  Denise Silva ,  Byong-Wa Chun ,  Masahiro Sato

IPC分类号： C04B24/26 ,  C04B7/52 ,  C04B28/02 ,  C04B103/00 ,  C04B103/30 ,  C04B103/52

CPC分类号： C04B7/52 ,  C04B24/2647 ,  C04B28/02 ,  C04B2103/006 ,  C04B2103/30 ,  C04B2103/52

摘要： The present invention discloses compositions and methods wherein polycarboxylate comb polymers are used as grinding additives. The comb polymers contain a carbon-containing backbone and pendant groups wherein oxyalkylene pendant groups contain one or more ether linkage groups for providing robustness to the polymer for resisting degradation during grinding and hence sustaining workability and strength of hydratable cementitious materials, such as cements, pozzolans, limestone, and other cementitious materials.

摘要翻译： 本发明公开了使用多羧酸梳理聚合物作为研磨添加剂的组合物和方法。 梳状聚合物含有含碳主链和侧基，其中氧化烯侧基基团含有一个或多个醚键基团，用于提供耐久性的聚合物，用于抵抗研磨过程中的降解，因此维持可水合水泥质材料如水泥，火山灰等的可加工性和强度 ，石灰石和其他水泥材料。