公开(公告)号：US09988505B2

公开(公告)日：2018-06-05

申请号：US14924302

申请日：2015-10-27

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

发明人： Dali Gao ,  Hongwei Shi ,  Shijun Zhang ,  Meifang Guo ,  Luqiang Yu ,  Jinliang Qiao ,  Ruxian Li ,  Yujing Tang ,  Jianjun Yin ,  Liangshi Wang ,  Honghong Huang ,  Qingquan Yang ,  Hao Zou ,  Jie Li ,  Liying Zhang ,  Hua Yin ,  Jianye Liu ,  Jingbo Shao ,  Mingfu Lyu ,  Liqiu Chu ,  Meng Xu ,  Hui Quan ,  Kai Xu ,  Mu Dong ,  Yun Lyu ,  Yihui Xu ,  Yaohui Xu ,  Peng Guo ,  Yiqing Bai

IPC分类号： B32B27/32 ,  B32B27/08 ,  C08L23/00 ,  C08F210/00 ,  C08J5/18 ,  C08L23/08 ,  B32B27/18

CPC分类号： C08J5/18 ,  B32B27/08 ,  B32B27/18 ,  B32B27/32 ,  B32B27/327 ,  B32B2250/24 ,  B32B2270/00 ,  B32B2307/406 ,  B32B2307/412 ,  B32B2307/518 ,  B32B2307/54 ,  B32B2307/558 ,  B32B2307/72 ,  B32B2410/00 ,  B32B2439/00 ,  B32B2439/06 ,  B32B2439/46 ,  C08J2323/06 ,  C08J2323/08 ,  C08L23/08 ,  C08L2203/16 ,  C08L2203/30 ,  C08L2205/025 ,  C08L2205/03

摘要： A polyethylene composition comprising an ethylene/α-olefin copolymerized linear low density polyethylene, wherein the polyethylene composition has a Mw of from 100,000 g/mol to 200,000 g/mol, a Mw/Mn of from 4.0 to 9.0, a Mz/Mw of from 4.0 to 7.0, and a Mz+1/Mw of from 4.5 to 13.5, is provided. A film formed of the polyethylene composition is also provided.

公开(公告)号：US10787546B2

公开(公告)日：2020-09-29

申请号：US15953062

申请日：2018-04-13

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

发明人： Jianye Liu ,  Liqiu Chu ,  Yun Lyu ,  Shijun Zhang ,  Liying Zhang ,  Hao Zou ,  Mu Dong ,  Dali Gao ,  Baige Chou ,  Yiqing Bai ,  Jingbo Shao ,  Meng Xu ,  Yihui Xu ,  Ruoshi Chen

IPC分类号： C08J3/14 ,  B29C67/00 ,  C08L67/04 ,  C08J3/21 ,  C08G63/88 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/153 ,  C08G63/08 ,  C08G63/12 ,  C08J3/09 ,  C08J3/11 ,  B29K67/00

摘要： A method for preparing an aliphatic polyester resin powder includes the steps ofa) heat dissolving a crystalline aliphatic polyester resin in an organic solvent to obtain an aliphatic polyester resin solution;b) cooling the aliphatic polyester resin solution to precipitate a solid, thereby obtaining a solid-liquid mixture;c) optionally adding an adjuvant to the solid-liquid mixture and mixing; andd) conducting solid-liquid separation and drying to obtain an aliphatic polyester resin powder suitable for selective laser sintering.The crystalline aliphatic polyester resin powder obtained has good antioxidant property, good powder flowability, moderate size, smooth surface, suitable bulk density, and suitable dispersibility and particle size distribution. The aliphatic polyester resin powder is particularly suitable for selective laser sintering method.

公开(公告)号：US10920025B2

公开(公告)日：2021-02-16

申请号：US15768429

申请日：2016-04-15

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

发明人： Jianye Liu ,  Shijun Zhang ,  Liqiu Chu ,  Liying Zhang ,  Hao Zou ,  Mu Dong ,  Dali Gao ,  Baige Chou ,  Jingbo Shao ,  Yun Lyu ,  Hua Yin ,  Qingquan Yang ,  Jie Li ,  Yiqing Bai ,  Yihui Xu

IPC分类号： C08J3/14 ,  B33Y70/00 ,  B29B9/10 ,  B29B13/00 ,  B29B13/02 ,  B29B13/04 ,  B29B13/06 ,  C08F6/12 ,  C08F110/02 ,  C08F110/06 ,  C08K3/22 ,  C08K3/34 ,  C08K3/36 ,  C08L23/12 ,  B33Y10/00 ,  B29C64/153 ,  B22F1/00 ,  B29B9/12 ,  B29K23/00 ,  B29K105/00

摘要： A method for preparing a polyolefin resin powder has the steps of a) heat dissolving a polyolefin resin in an organic solvent having a solubility parameter less than or equal to the solubility parameter of the polyolefin resin to obtain a polyolefin resin solution; b) cooling the polyolefin resin solution to precipitate a solid, thereby obtaining a solid-liquid mixture; c) optionally adding an adjuvant to the solid-liquid mixture and mixing; and d) conducting solid-liquid separation and drying to obtain a polyolefin resin powder suitable for selective laser sintering. The difference between the solubility parameters of the organic solvent and of the polyolefin resin is within 0-20% of the solubility parameter of the polyolefin resin.
The polyolefin resin powder obtained according to this method has good antioxidant property, good powder flowability, moderate size, smooth surface, suitable bulk density, and suitable dispersibility and particle size distribution.

公开(公告)号：US09303108B2

公开(公告)日：2016-04-05

申请号：US13663433

申请日：2012-10-29

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORP

发明人： Meifang Guo ,  Wenbo Song ,  Liying Zhang ,  Liping Hou ,  Wenjun Wei ,  Hao Zhang ,  Yujing Tang ,  Huijie Hu

IPC分类号： C08F210/08 ,  B32B1/02 ,  B32B27/28 ,  C08F210/06 ,  C08F10/00

CPC分类号： C08F210/06 ,  C08F10/00 ,  Y10T428/1352 ,  C08F210/08 ,  C08F2500/12 ,  C08F4/651 ,  C08F4/6543

摘要： The present invention relates to a propylene-butene-1 random copolymer which has a butene-1 content of 1-6 mol % and a relative dispersity of butene-1, as determined according to NMR method, of greater than 98.5%. The propylene-butene-1 random copolymer of the present invention has a high relative dispersity of butene-1, as well as better transparency and heat resistance, so that it is more suitable for packaging food that may be edible after heating. Moreover, the copolymer has a lower xylene solubles content at room temperature. In addition, the present invention further relates to a method for preparing the copolymer and to a composition and an article comprising the copolymer.

摘要翻译： 本发明涉及丙烯 - 丁烯-1无规共聚物，其丁烯-1含量为1-6摩尔％，并且根据NMR方法测定的丁烯-1的相对分散度大于98.5％。 本发明的丙烯 - 丁烯-1无规共聚物具有高的丁烯-1的相对分散性以及更好的透明性和耐热性，因此更适于包装加热后可食用的食品。 此外，共聚物在室温下的二甲苯可溶物含量较低。 此外，本发明还涉及一种制备该共聚物的方法和一种包含该共聚物的组合物和制品。