Tag Archives: polymerization

Composite for inhibiting nitrosamine for quick stopping free-radical emulsion polymerization

Application Number  00128969 Application Date  2000.09.08 Publication Number  1288014 Publication Date  2001.03.21 Priority Information   2000/8/3 US 09/631,756; 1999/9/9 US 60/153,150   International Classification  C08F2/42   Applicant(s) Name  Atofina Chemical Co., Ltd.   Address     Inventor(s) Name  Lou Jianfeng;T.S. Busta;M.D. Jenon   Patent Agency Code  31100 Patent Agent  bai yihua AbstractThe present invention is… Read More »

Transition metal compound, its producing process olefine polymerization catalyst containing the same transition metal compound and process for producing olefine polymer

Application Number  00128523 Application Date  1996.07.15 Publication Number  1310183 Publication Date  2001.08.29 Priority Information   1995/7/14 JP 178726/1995   International Classification  C07C43/15;C07C43/215;C07C43/225;C07F7/00;C07F7/08;C07F7/12   Applicant(s) Name  Sumitomo Chemical Co., Ltd.   Address     Inventor(s) Name  Katayama Hiroaki;Nabika Masaaki;Imai Akio   Patent Agency Code  11038 Patent Agent  liu jinhui AbstractA transition metal complex represented by general… Read More »

Method for increasing molecular weight of polybutadiene or polyisoprene produced by gas-phase polymerization

Application Number  00128450 Application Date  2000.11.22 Publication Number  1296983 Publication Date  2001.05.30 Priority Information   1999/11/23 US 09/448846   International Classification  C08F2/34;C08F136/04   Applicant(s) Name  Union Carbide Chemicals & Plastics Technology Corp.   Address     Inventor(s) Name  K.J. Cam;M. Zhang   Patent Agency Code  72001 Patent Agent  lu xinhua AbstractThere is provided a method… Read More »

Nickel-based catalyst for producing polybutadiene and gas-phase polymerization process thereof

Application Number  00128449 Application Date  2000.11.22 Publication Number  1296984 Publication Date  2001.05.30 Priority Information   1999/11/23 US 09/447668   International Classification  C08F2/34;C08F4/602;C08F136/06   Applicant(s) Name  Union Carbide Chemicals & Plastics Technology Corp.   Address     Inventor(s) Name  M. Zhang   Patent Agency Code  72001 Patent Agent  lu xinhua AbstractThere is provided a catalyst comprising… Read More »

Polymerization of sticky polymer in presence of treated carbon black

Application Number: 00118474Application Date: 2000.06.28Publication Number: 1279244Publication Date: 2001.01.10Priority Information: 1999/6/29 US 09/343169International: C08F2/44;C08F10/00;C08F36/06Applicant(s) Name: Union Carbide Chemicals and Plastics Technology Corp.Address: Inventor(s) Name: W. Wang;K. J. KanPatent Agency Code: 72001Patent Agent: liu yuanjinAbstract There is provided a method for polymerizing a sticky polymer in the presence of a catalyst under polymerization conditions using carbon… Read More »

Polymerization of sticky polymer in presence of treated carbon black

Application Number: 00118474Application Date: 2000.06.28Publication Number: 1279244Publication Date: 2001.01.10Priority Information: 1999/6/29 US 09/343169International: C08F2/44;C08F10/00;C08F36/06Applicant(s) Name: Union Carbide Chemicals and Plastics Technology Corp.Address: Inventor(s) Name: W. Wang;K. J. KanPatent Agency Code: 72001Patent Agent: liu yuanjinAbstract There is provided a method for polymerizing a sticky polymer in the presence of a catalyst under polymerization conditions using carbon… Read More »

Slurry polymerization process for linear extra-low density ethylene copolymer

Application Number: 00118880Application Date: 2000.06.23Publication Number: 1310187Publication Date: 2001.08.29Priority Information: 1992/1/31 US 829,807International: C08F2/00;C08F10/00Applicant(s) Name: Phillips Petroleum Co.Address: Inventor(s) Name: M.P. McDaniel;E.A. BenheimPatent Agency Code: 11038Patent Agent: li yongAbstract The invention provides a slurry polymerization which includes: making substances contact with each other at temperature of about 60-70 DEG C; hydrocarbon diluent; ethylene monomer; copolymer… Read More »

Controllable carbon cation polymerization process

Application Number: 00121063Application Date: 2000.07.17Publication Number: 1277212Publication Date: 2000.12.20Priority Information: International: C08F2/04;C08F10/00Applicant(s) Name: Beijing Chemical Univ.Address: Inventor(s) Name: Wu Yixian;Wu GuanyingPatent Agency Code: 11204Patent Agent: lu guojieAbstract The controllable carbon cation polymerization process is that in a system with small amount of water, olefine polymerization is performed without external primer to reach desired molecular weight… Read More »

Continuous polymerization process in Cis-1,4-polybutadiene rubber equipment with short-term stopping

Application Number: 00111048Application Date: 2000.05.18Publication Number: 1324872Publication Date: 2001.12.05Priority Information: International: C08F2/01;C08F136/06Applicant(s) Name: Qilu Petrochemical Co., SINOPECAddress: Inventor(s) Name: Yang HuatianPatent Agency Code: 37103Patent Agent: geng xiaAbstract The invented continuous polymerization process is cis-polybutadiene rubber production equipment is characterized by that before its heavy compound removing tower is stopped or stopped for maintenance for a… Read More »

Process for preparing 'after-cyclopentadiene' high-molecular catalyst for polymerization of olefine

Application Number: 00121820Application Date: 2000.07.13Publication Number: 1306012Publication Date: 2001.08.01Priority Information: International: C08F4/602;C08F10/00Applicant(s) Name: Changchun Inst of Applied Chemistry, Chinese Academy of SciencesAddress: Inventor(s) Name: Liu Changkun;Zhou Guangyuan;Jin GuoxinPatent Agency Code: 22001Patent Agent: cao guizhenAbstract A high-molecular transition metallocene catalyst for polymerizing olefine is composed of components A and B. Said component A is [P(S-co-cat)], where… Read More »

Preparation method of guluronic acid with single degree of polymerization and its application

Application Number: 00111363Application Date: 2000.09.07Publication Number: 1341602Publication Date: 2002.03.27Priority Information: International: C07H7/033;C08B37/00Applicant(s) Name: Qingdao Univ. of OceanographyAddress: Inventor(s) Name: Guan Huashi;Liu Yan;Jiang XiaoluPatent Agency Code: 37201Patent Agent: cui qingchenAbstract The preparation method of guluronic acid with single polymerization degree includes the following steps: dissolving sodium alginate in water, adding algin lyase to make reaction, heating… Read More »

Ni modified Cr catalysts for ethylene polymerization and its prepn

Application Number: 00123961Application Date: 2000.10.23Publication Number: 1350007Publication Date: 2002.05.22Priority Information: International: C08F4/02;C08F4/622;C08F10/02Applicant(s) Name: Qilu Petrochemical Co., China Petrochemical GroupAddress: Inventor(s) Name: Wang Ming;Ren Hong;Huang XiangmingPatent Agency Code: 37001Patent Agent: chen huizhenAbstract The present invention relates to a load type chromium-containing catalyst modified with nickel compound for ethylene polymerization and its preparation method. said catalyst possesses… Read More »

Preparation method of mannuronic acid with single degree of polymerization and its application

Application Number: 00111368Application Date: 2000.09.07Publication Number: 1341665Publication Date: 2002.03.27Priority Information: International: C08B37/00Applicant(s) Name: Qingdao Univ. of OceanographyAddress: Inventor(s) Name: Guan Huashi;Liu Yan;Jiang XiaoluPatent Agency Code: 37201Patent Agent: cui qingchenAbstract The preparation method of mannuronic acid with single polymerization degree includes the folloiwng steps: dissolving sodium alginate in water, adding algin lyase to make reaction, heating… Read More »

Atomic group-transfer free radical polymerization initiation system of fullerene halide derivative

Application Number: 00124489Application Date: 2000.09.11Publication Number: 1281866Publication Date: 2001.01.31Priority Information: International: C08F4/00Applicant(s) Name: Liu QingAddress: Inventor(s) Name: Chen Dianbao;Liu Qing;Hua JingPatent Agency Code: 11240Patent Agent: shi hechuAbstract The present invention relates to an atomic group transfer free radical polymerization initiation system using new type fullerene halogenation derivative as base and possessing the following structure, Ps-(C60/C70)Xn/MRm,… Read More »

Method for initiating polymerization of microemulsion by means of ultrasonic wave

Application Number: 00113154Application Date: 2000.09.04Publication Number: 1341667Publication Date: 2002.03.27Priority Information: International: C08F2/56Applicant(s) Name: Sichuan UniversityAddress: Inventor(s) Name: Wang Qi;Liao Yongqin;Xia HeshengPatent Agency Code: 51202Patent Agent: deng jihanAbstract The present invention is characterized by that it utilizes the actions of dispersion, emulsification and initiation of ultrasonic wave to implement microemulsion polymerization under the condition of low… Read More »

Contact metastatic polymerization

Application Number: 00124615Application Date: 2000.09.22Publication Number: 1344773Publication Date: 2002.04.17Priority Information: International: B32B33/00;C09J4/00;C09J5/00Applicant(s) Name: Loder Corp.Address: Inventor(s) Name: Edward F. Tokars;Kenneth C. Caster;Marc A. WeiPatent Agency Code: 11219Patent Agent: wang weiyuAbstract The present invention provides one method of adhering one substance to the first substrate. The method includes providing catalyst to the first substrate and the… Read More »

Non-cyclopentadiene Zr metal compound, its preparing process and its application of olefine polymerization

Application Number: 00115192Application Date: 2000.03.28Publication Number: 1315460Publication Date: 2001.10.03Priority Information: International: C08F4/76;C08F10/00Applicant(s) Name: Chinese Petro-Chemical Co LtdAddress: Inventor(s) Name: Qian Yanlong;Lian Bing;Yong LiPatent Agency Code: 31203Patent Agent: luo dachenAbstract The present invention discloses a non-cyclopentadienyl Zr metal compound, its preparing process and its application in olefin polymerization. The Zr is introduced to the mother body… Read More »

Method for preparing catalyst carrier for alpha-olefines polymerization and carrier obtained by same method

Application Number: 00126281Application Date: 2000.07.27Publication Number: 1283638Publication Date: 2001.02.14Priority Information: 1999/7/28 FR 99/09796; 1999/8/4 FR 99/10129International: C08F10/00;C08F4/02Applicant(s) Name: Atofena S.A.Address: Inventor(s) Name: T. Sodmont;J. Maringe;J.-L. RakonbuPatent Agency Code: 72001Patent Agent: lu xinhuaAbstract A process is provided for preparing a catalyst support for polymerizing alpha-olefins comprising the steps of: (i) reacting, in the presence of a… Read More »

Syndiotactic polymerization process of phenylethylene

Application Number: 00116527Application Date: 2000.06.15Publication Number: 1329096Publication Date: 2002.01.02Priority Information: International: C08F112/08Applicant(s) Name: China Petro-Chemical Corp.Address: Inventor(s) Name: Shen Zhigang;Lin Shang'an;Zhou WenlePatent Agency Code: 31102Patent Agent: zhang huimengAbstract The present invention relates to a syndiotactic polymerization method of phenylethylene, and is characterized by that before polymerization reaction the cyclopentadienyl titanium compound with reaction dosage and… Read More »

Olefine polymerization catalyst and method for production of olefine polymer using it

Application Number: 00126300Application Date: 2000.08.29Publication Number: 1286271Publication Date: 2001.03.07Priority Information: 1999/8/31 JP 245629/99International: C07F17/00;C08F4/64;C08F10/00Applicant(s) Name: Sumitomo Chemical Co., Ltd.Address: Inventor(s) Name: Watanabe KowashiPatent Agency Code: 72001Patent Agent: liu yuanjinAbstract An olefin polymerization catalyst prepared by contacting a specified transition metal compound(A) having a cyclopentadiene type anion skeletons in its molecule with a modified aluminum oxy… Read More »

Method for avoiding polymerization generation in film-type evaporator

Application Number: 00118165Application Date: 2000.04.23Publication Number: 1273136Publication Date: 2000.11.15Priority Information: 1999/4/23 JP 116991/99International: B01D1/22;C07C57/07Applicant(s) Name: Nippon Shokubai Co., Ltd.Address: Inventor(s) Name: Ijiri Yuichi;Nishimura Takeshi;Matsumoto YukihiroPatent Agency Code: 72001Patent Agent: pang lizhiAbstract A method is provided for preventing an easily polymerizable substance from being polymerized in a thin-film type evaporating device by supplying a solution of… Read More »

Spherical catalyst components used for polymerization or copolymerization of olefin and its catalyst

Application Number: 00109216Application Date: 2000.06.15Publication Number: 1330086Publication Date: 2002.01.09Priority Information: International: C08F4/643;C08F10/00Applicant(s) Name: Chinese Petro-Chemical Co LtdAddress: Inventor(s) Name: Du Hongbin;Xia Xianzhi;Wang XinshengPatent Agency Code: 11218Patent Agent: fan guirongAbstract A spherical catalyst contains at least one Ti compound and at least one electron donor compound, which are carried by alkoxide of magnesium chloride, and has… Read More »

Method for suppression of polymerization in vacuum zone of easy-to-polymerize compounds purifying system

Application Number: 00109005Application Date: 2000.06.01Publication Number: 1276363Publication Date: 2000.12.13Priority Information: 1999/6/3 JP 156656/1999International: C07B63/00;B01D3/00Applicant(s) Name: Nippon Shokubai Co., Ltd.Address: Inventor(s) Name: Matsumoto Yukihiro;Nishimura TakeshiPatent Agency Code: 11021Patent Agent: li yueAbstract A process for inhibiting a polymerization of an easily polymerizable compound in an easily polymerizable compound purification system is disclosed. According to the present invention,… Read More »

Bidentale ligand, transition metal complex, olefinic polymerization catalysis system and application of said catalysis system in olefinic polymerization

Application Number: 00107258Application Date: 2000.04.30Publication Number: 1321692Publication Date: 2001.11.14Priority Information: International: C08F4/642;C08F10/00Applicant(s) Name: China Petro-Chemical Corp.Address: Inventor(s) Name: Liu Dongbing;He Xuexia;Zhang ZhePatent Agency Code: 11218Patent Agent: wei qiangwenAbstract The present invention provides a novel bidentate ligand, a transition metal coordination compound and its olefinic polymerization catalytic system and its application, in which the described catalytic… Read More »

Shell-and-tube heat exchanger and method for controlling polymerization in shell-and-tube heat exchanger

Application Number: 00106891Application Date: 2000.03.11Publication Number: 1273356Publication Date: 2000.11.15Priority Information: 1999/3/11 JP 65403/99; 1999/3/16 JP 70503/99International: F28D7/16;F28F19/00Applicant(s) Name: Nippon Shokubai Co.,Ltd.Address: Inventor(s) Name: Nishimura Takeshi;Matsumoto YukihiroPatent Agency Code: 72001Patent Agent: pang lizhiAbstract A shell-and-tube heat exchanger for handling an easily polymerizable substance is disclosed, which is characterized by having no part for stagnation of said… Read More »

Alfa-olefin polymerization method

Application Number: 00106541Application Date: 2000.03.24Publication Number: 1268519Publication Date: 2000.10.04Priority Information: 1999/3/24 BE 09900207International: C08F4/52;C08F10/00Applicant(s) Name: Solvay Polyolefin Europe-Belgium S. A.Address: Inventor(s) Name: F. Sibdt;P. Fransowa;S. PayePatent Agency Code: 72001Patent Agent: pang lizhiAbstract Process for polymerizing alpha-olefins, in which at least one alpha-olefin is placed in contact, under polymerizing conditions, with a catalytic system comprising(a) a… Read More »

Bifunational catalysis system for preparing ultralow-density polyethyleen (ULDPE) by ethylene polymerization

Application Number: 00105796Application Date: 2000.04.11Publication Number: 1317503Publication Date: 2001.10.17Priority Information: International: C08F4/642;C08F110/02Applicant(s) Name: Inst of Chemistry, Chinese Academy of SciencesAddress: Inventor(s) Name: Liu Zhongyang;Zhao Jian;Hu YouliangPatent Agency Code: 00000Patent Agent: Abstract A dual-function catalyst system for preparing ultralow-density polyethylene (ULDPE) by ethylene polymerization is composed of bipolymerizing catalyst (Ti(OR)4) and co-catalyst (EtInd2ZrCl2, Me2SiInd2ZrCl2, C5Me4Me3SiIndt-BuNiCl2, or… Read More »

Process for inhibiting polymerization of easy polymerized compounds

Application Number: 00105663Application Date: 2000.04.14Publication Number: 1270950Publication Date: 2000.10.25Priority Information: 1999/4/16 JP 110043/1999International: C07C57/07;C07C67/54;C07C69/54Applicant(s) Name: Nippon Shokubai Co., Ltd.Address: Inventor(s) Name: Matsumoto Yukihiro;Nishimura TakeshiPatent Agency Code: 11021Patent Agent: yan fangAbstract In distillation of easily polymerizable compounds such as (meth)acrylic acid and (meth)acrylic esters using a distillation unit, a liquid having substantially the same composition with… Read More »

Medium size polymerizing still for suspension polymerizing vinyl chloride and relevant polymerization process

Application Number: 00103984Application Date: 2000.03.21Publication Number: 1314421Publication Date: 2001.09.26Priority Information: International: B01F7/02;B01J3/04;C08F114/06Applicant(s) Name: Haijing Chemical Group Co., Ltd., QingdaoAddress: Inventor(s) Name: Li Ming;Zuo Zhiyuan;Zhang YingminPatent Agency Code: 11223Patent Agent: wang mengxiaAbstract The medium size polymerizing still includes still body with length-to-diameter ratio of 1.6-1.95 and volume of 40-60 cubic meter, top entering drive mechanism, two-layer… Read More »

Surface active compositions for emulsion polymerization

Application Number: 00103836Application Date: 2000.03.02Publication Number: 1266065Publication Date: 2000.09.13Priority Information: 1999/3/4 JP 57128/99International: C08F2/24Applicant(s) Name: Kao Corp.Address: Inventor(s) Name: Ikengae Naoyuki;Mori Atsuto;Aisawa HiroyukiPatent Agency Code: 31100Patent Agent: chen wenjingAbstract The present invention provides a surfactant composition for emulsion polymerization of which stability upon polymerization and mechanical stability of emulsion are good, in which particle has… Read More »