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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Diluent slip stream to give catalyst wetting agent

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C08F-002/06    C08F-006/10   
미국특허분류(USC) 526/064 ; 526/068 ; 526/070 ; 422/132 ; 528/501
출원번호 US-0265286 (1999-03-09)
발명자 / 주소
  • Hottovy John D.
  • Burns David H.
  • Kufeld Scott E.
  • Roetman Timothy
  • Vaidyanathan Ragavan
출원인 / 주소
  • Phillips Petroleum Company
대리인 / 주소
    Owen
인용정보 피인용 횟수 : 278  인용 특허 : 9
초록
▼

A process and apparatus for passing a polymerization effluent, comprising solid polymer, unreacted monomer, diluent and minor amounts of contaminants, to a high pressure flash where most of the fluid components are flashed and wherein a slip stream comprising diluent and minor amounts of monomer is separated from the bulk of the flashed fluid components. The slip stream is subjected to olefin removal to give an essentially olefin-free stream for recycle to a catalyst mud preparation area. The bulk of the flashed fluid components are recycled directly bac...

대표
청구항
▼

[ That which is claimed is:] [1.]1. A process comprising:introducing an effluent from a polymerization zone, said effluent comprising solid polymer and a fluid comprising diluent, into a flash zone under conditions of temperature and pressure such that a major portion of said fluid flashes overhead to form a flash gas stream;separately withdrawing said solid polymer and remaining fluid as an intermediate product of said process;dividing said flash gas stream into two streams, a main diluent recycle stream which constitutes a major portion of said flash g...

이 특허에 인용된 특허 (9)

  1. Sherk Fred T. (Bartlesville OK) Inkrott Janet L. (Bartlesville OK), Diluent and inert gas recovery from a polymerization process.
  2. Ayres C. A. (Bartlesville OK) Scott ; Jr. John N. (McLean VA) Sherk Fred T. (Tokyo JPX), Loop reactor settling leg system for separation of solid polymers and liquid diluent.
  3. Willcox Kenneth W. (Bartlesville OK), Prevention of fouling in polymerization reactors.
  4. Hanson Donald O. (Bartlesville OK), Process and apparatus for separating diluents from solid polymers utilizing a two-stage flash and a cyclone separator.
  5. Hanson Donald O. (Bartlesville OK), Process for separating diluents from solid polymers utilizing a two-stage flash and a cyclone separator.
  6. Howard Lee J. (Allentown PA) Rowles Howard C. (Center Valley PA), Recovery of hydrocarbons from polyalkene product purge gas.
  7. Hanson Donald O. (Bartlesville OK), Separation of solid polymers and liquid diluent.
  8. Hanson Donald O. (Bartlesville OK) Sherk Fred T. (Bartlesville OK), Separation of solid polymers and liquid diluent.
  9. Messura Kathleen A. (Aiken SC) Ayres Charles A. (Bartlesville OK), Vapor recovery from particles containing same.

이 특허를 인용한 특허 (278)

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  136. Rajaendran, George R.; McDaniel, Max P.; Hendrickson, Gregory G.; Stewart, John D.; Hottovy, John D.; Cymbaluk, Ted H.; Lane, Susannah; Hernandez, Richard A.; Johnson, Elliott W.; Yang, Qing; Valerioti, William L.; Schwerdtfeger, Eric; Masino, Albert P., Methods for removing polymer skins from reactor walls.
  137. Yang, Qing; Crain, Tony R.; Rajaendran, George R., Methods for restoring metallocene solids exposed to air.
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  139. Yang, Qing; McDaniel, Max P.; Crain, Tony R.; Collins, Kathy S., Methods for terminating olefin polymerizations.
  140. Yang, Qing; McDaniel, Max P.; Crain, Tony R.; Collins, Kathy S., Methods for terminating olefin polymerizations.
  141. Yang, Qing; McDaniel, Max P.; Crain, Tony R.; Masino, Albert P.; Cymbaluk, Ted H.; Stewart, John D., Methods of controlling dual catalyst olefin polymerizations with an alcohol compound.
  142. McDaniel, Max P.; Collins, Kathy S., Methods of preparing a catalyst.
  143. McDaniel, Max P.; Schwerdtfeger, Eric D.; Praetorius, Jeremy M.; Solenberger, Alan L.; Clear, Kathy S., Methods of preparing a catalyst.
  144. Praetorius, Jeremy M.; Schwerdtfeger, Eric D.; McDaniel, Max P.; Cymbaluk, Ted H.; Boxell, Connor D.; Collins, Kathy S.; Solenberger, Alan L., Methods of preparing a catalyst.
  145. Praetorius, Jeremy M.; Schwerdtfeger, Eric D.; McDaniel, Max P.; Cymbaluk, Ted H.; Boxell, Connor D.; Collins, Kathy S.; Solenberger, Alan L., Methods of preparing a catalyst.
  146. Praetorius, Jeremy M.; Schwerdtfeger, Eric D.; McDaniel, Max P.; Cymbaluk, Ted H.; Boxell, Connor D.; Solenberger, Alan L.; Clear, Kathy S., Methods of preparing a catalyst.
  147. Benham, Elizabeth A.; McDaniel, Max P.; Collins, Kathy S.; Wharry, Stephen M., Methods of preparing a polymerization catalyst.
  148. McDaniel, Max P.; Benham, Elizabeth A.; Muninger, Randall S., Methods of preparing a polymerization catalyst.
  149. McDaniel, Max P.; Collins, Kathy S., Methods of preparing a polymerization catalyst.
  150. McDaniel, Max P.; Collins, Kathy S., Methods of preparing a polymerization catalyst.
  151. McDaniel, Max P.; Collins, Kathy S., Methods of preparing a polymerization catalyst.
  152. McDaniel, Max P.; Collins, Kathy S., Methods of preparing a polymerization catalyst.
  153. McDaniel, Max P.; Collins, Kathy S.; Benham, Elizabeth A.; Beaulieu, William B., Methods of preparing a polymerization catalyst.
  154. Gupta, Anurag; Odi, Timothy O.; Romig, Ralph W., Monomer/diluent recovery.
  155. Gupta, Anurag; Odi, Timothy O.; Romig, Ralph W., Monomer/diluent recovery.
  156. Martin, Joel L.; Jayarante, Kumudini; Thorn, Matthew G.; Lanier, J. Todd; McDaniel, Max P.; Yang, Qing; Jensen, Michael D.; DesLauriers, Paul J.; Krishnaswamy, Rajendra K., Multimodal polyethylene compositions and pipe made from same.
  157. Murray, Rex E.; Jayaratne, Kumudini C.; Yang, Qing; Martin, Joel L.; Glass, Gary L., Nano-linked heteronuclear metallocene catalyst compositions and their polymer products.
  158. Murray, Rex E.; Jayaratne, Kumudini C.; Yang, Qing; Martin, Joel L.; Glass, Gary L., Nano-linked heteronuclear metallocene catalyst compositions and their polymer products.
  159. Murray, Rex E.; Jayaratne, Kumudini C.; Yang, Qing; Martin, Joel L., Nano-linked metallocene catalyst compositions and their polymer products.
  160. Murray, Rex E.; Jayaratne, Kumudini C.; Yang, Qing; Martin, Joel L., Nano-linked metallocene catalyst compositions and their polymer products.
  161. Murray, Rex E.; Jayaratne, Kumudini C.; Yang, Qing; Martin, Joel L., Nano-linked metallocene catalyst compositions and their polymer products.
  162. Murray, Rex E.; Jayaratne, Kumudini C.; Yang, Qing; Martin, Joel L., Nano-linked metallocene catalyst compositions and their polymer products.
  163. Murray, Rex E.; Jayaratne, Kumudini C.; Yang, Qing; Martin, Joel L., Nano-linked metallocene catalyst compositions and their polymer products.
  164. Cui, Lili; Sukhadia, Ashish M.; Rohatgi, Vivek, Peroxide treated metallocene-based polyolefins with improved melt strength.
  165. Cui, Lili; Sukhadia, Ashish M.; Rohatgi, Vivek, Peroxide treated metallocene-based polyolefins with improved melt strength.
  166. Cui, Lili; Sukhadia, Ashish M.; Rohatgi, Vivek, Peroxide treated metallocene-based polyolefins with improved melt strength.
  167. Lanier, Elizabeth M.; Hauger, Bryan, Polyethylene additive compositions and articles made from same.
  168. Sukhadia,Ashish M.; Lanier,Elizabeth M.; Moore,Louis, Polyethylene compositions.
  169. Tso, Chung; Barr, Jared L.; Frey, Kelly; Cruz, Carlos A.; Yu, Youlu; Bridendolph, Bill; Yang, Qing; Inn, Yongwoo; Fisher, William; McDaniel, Max P.; Sukhadia, Ashish M.; Rutledge-Ryal, Brandy; Hert, Daniel G., Polyethylene compositions and methods of making and using same.
  170. Tso, Chung; Cruz, Carlos A.; Yang, Qing; McDaniel, Max P.; Barr, Jared L.; Yu, Youlu; Inn, Yongwoo; Sukhadia, Ashish M.; Rutledge-Ryal, Brandy; Hert, Daniel G.; Frey, Kelly; Bridendolph, Bill; Fisher, William, Polyethylene compositions and methods of making and using same.
  171. Krishnaswamy, Rajendra K.; Yang, Qing; Rohlfing, David C.; McDaniel, Max P.; Jayaratne, Kumudini C.; French, Jim E., Polyethylene compositions and pipe made from same.
  172. Sukhadia, Ashish M.; McDaniel, Max P.; Cymbaluk, Ted; Krishnaswamy, Rajendra K.; Szmutko, Lawrence, Polyethylene film having improved barrier properties and methods of making same.
  173. Sukhadia, Ashish M.; Martin, Joel L.; Yang, Qing; Jayaratne, Kumudini C.; Lanier, J. Todd, Polyethylene film having improved mechanical and barrier properties and method of making same.
  174. Hlavinka, Mark L.; Yang, Qing; Beaulieu, William B.; Deslauriers, Paul J., Polymer compositions and methods of making and using same.
  175. Hlavinka, Mark L.; Yang, Qing; Beaulieu, William B.; Deslauriers, Paul J., Polymer compositions and methods of making and using same.
  176. Hlavinka, Mark L.; Yang, Qing; Beaulieu, William B.; Deslauriers, Paul J., Polymer compositions and methods of making and using same.
  177. Yang, Qing; McDaniel, Max P.; Beaulieu, William B.; Yu, Youlu; Crain, Tony R., Polymer compositions for blow molding applications.
  178. Buck, Richard M.; Masino, Albert P.; Yang, Qing; DesLauriers, Paul J.; Secora, Steven J.; Lanier, Elizabeth M.; St. Jean, Guylaine; Ratzlaff, Jon D.; Wittner, Christopher E., Polymer compositions for rotational molding applications.
  179. Addcox, Jim H.; St. Jean, Guylaine, Polymer compositions having improved barrier properties.
  180. Hlavinka, Mark L.; Yang, Qing; St. Jean, Guylaine; Gill, Brooke A.; Gagan, Deloris R., Polymer compositions having improved barrier properties.
  181. Yang, Qing; Hlavinka, Mark L.; St. Jean, Guylaine; Gill, Brooke A., Polymer compositions having improved barrier properties.
  182. Deslauriers, Paul J.; Stark, Jerry, Polymer compositions having improved processability and methods of making and using same.
  183. Yu, Youlu; Yang, Qing; Deslauriers, Paul J.; Lamborn, Mark J.; Inn, Yongwoo, Polymer compositions having improved processability and methods of making and using same.
  184. Yu, Youlu; Yang, Qing; Deslauriers, Paul J.; Lamborn, Mark J.; Inn, Yongwoo, Polymer compositions having improved processability and methods of making and using same.
  185. Tso, Chung; Sukhadia, Ashish M.; Masino, Albert P., Polymer films having improved heat sealing properties.
  186. Tso, Chung; Sukhadia, Ashish M.; Masino, Albert P., Polymer films having improved heat sealing properties.
  187. St. Jean, Guylaine; Yang, Qing; Tso, Chung; McDaniel, Max P., Polymer resins having improved barrier properties and methods of making same.
  188. Inn, Yongwoo; Yang, Qing, Polymer resins with improved processability and melt fracture characteristics.
  189. Marissal, Daniel; Van Breuseghem, Philip; Walworth, Brent R., Polymerisation process.
  190. Marissal, Daniel; Van Breuseghem, Philip; Walworth, Brent R., Polymerisation process.
  191. McDaniel, Max P.; Collins, Kathy S.; Schwerdtfeger, Eric D.; Solenberger, Alan L., Polymerization catalysts and polymers.
  192. Yang, Qing; Crain, Tony R., Polymerization catalysts for producing polymers with high comonomer incorporation.
  193. Yang, Qing; Crain, Tony R., Polymerization catalysts for producing polymers with high comonomer incorporation.
  194. Yang, Qing; McDaniel, Max P.; Martin, Joel L.; Yu, Youlu; Rohlfing, David C.; Jensen, Michael D., Polymerization catalysts for producing polymers with low melt elasticity.
  195. Yang, Qing; McDaniel, Max P.; Martin, Joel L.; Yu, Youlu; Rohlfing, David C.; Jensen, Michael D., Polymerization catalysts for producing polymers with low melt elasticity.
  196. Yang, Qing; McDaniel, Max P.; Martin, Joel L.; Yu, Youlu; Rohlfing, David C.; Jensen, Michael D., Polymerization catalysts for producing polymers with low melt elasticity.
  197. Bell, Susan L.; Vadagama, Abdul Gaffar, Polymerization process.
  198. Marissal, Daniel; Van Breuseghem, Philip; Walworth, Brent R., Polymerization process.
  199. Marissal, Daniel; Van Breuseghem, Philip; Walworth, Brent R., Polymerization process.
  200. Hottovy, John D.; Kufeld, Scott E., Polymerization product pressures in olefin polymerization.
  201. Hottovy, John D.; Kufeld, Scott E., Polymerization product pressures in olefin polymerization.
  202. Hottovy, John D.; Kufeld, Scott E., Polymerization product pressures in olefin polymerization.
  203. Hottovy, John D.; Kufeld, Scott E.; Mutchler, Joel A., Polymerization product pressures in olefin polymerization.
  204. Greco, Jeff F; Yang, Qing; Rohatgi, Vivek; Hlavinka, Mark L.; Askew, Jim B, Polymers with improved ESCR for blow molding applications.
  205. Rohatgi, Vivek; Greco, Jeffrey F.; Inn, Yongwoo; Yang, Qing; Brown, Jr., Alfred E., Polymers with improved ESCR for blow molding applications.
  206. Rohatgi, Vivek; Greco, Jeffrey F.; Inn, Yongwoo; Yang, Qing; Brown, Jr., Alfred E., Polymers with improved ESCR for blow molding applications.
  207. Rohatgi, Vivek; Inn, Yongwoo; Sukhadia, Ashish M.; Yang, Qing; DesLauriers, Paul J., Polymers with improved processability for pipe applications.
  208. Rohatgi, Vivek; Inn, Yongwoo; Sukhadia, Ashish M.; Yang, Qing; DesLauriers, Paul J., Polymers with improved processability for pipe applications.
  209. Hlavinka, Mark L.; Yang, Qing; Inn, Yongwoo; Whitte, William M.; Rathman, John R.; Secora, Steven J.; Hert, Daniel G., Polymers with improved toughness and ESCR for large-part blow molding applications.
  210. Hlavinka, Mark L.; Yang, Qing; Inn, Yongwoo; Whitte, William M.; Rathman, John R.; Secora, Steven J.; Hert, Daniel G., Polymers with improved toughness and ESCR for large-part blow molding applications.
  211. Hlavinka, Mark L.; Yang, Qing; Inn, Yongwoo; Whitte, William M.; Rathman, John R.; Secora, Steven J.; Hert, Daniel G., Polymers with improved toughness and ESCR for large-part blow molding applications.
  212. Mills, Andrew J.; Hoener, Andrea L.; Romig, Ralph W., Polyolefin manufacturing system including a membrane fractionation system for diluent recovery.
  213. Mills, Andrew J.; Romig, Ralph W.; Hoener, Andrea L., Polyolefin manufacturing system including a membrane fractionation system for diluent recovery.
  214. Hottovy, John D.; Kufeld, Scott E., Pressure control to reduce pump power fluctuations.
  215. Hottovy, John D.; Kufeld, Scott E., Pressure control to reduce pump power fluctuations.
  216. Kufeld, Scott E.; Kreischer, Bruce E.; Hottovy, John D., Pressure management for slurry polymerization.
  217. Kufeld, Scott E.; Kreischer, Bruce E.; Hottovy, John D., Pressure management for slurry polymerization.
  218. Kufeld, Scott E.; Kreischer, Bruce E.; Hottovy, John D., Pressure management for slurry polymerization.
  219. Kufeld, Scott E.; Kreischer, Bruce E.; Hottovy, John D., Pressure management for slurry polymerization.
  220. Hottovy,John D.; Zellers,Dale A.; Hagenson,Randy L., Process and apparatus for reducing take-off valve plugging in a polymerization process.
  221. Reid, Thomas A.; Kufeld, Scott E.; Tait, John H.; Burns, David H.; Verser, Donald W., Process and apparatus for separating diluent from polymer solids.
  222. Reid, Thomas A.; Kufeld, Scott E.; Tait, John H.; Burns, David H.; Verser, Donald W., Process and apparatus for separating diluent from polymer solids.
  223. Verser, Donald W.; Burns, David H.; Hottovy, John D., Process and apparatus for separating polymer solids, hydrocarbon fluids, and purge gas.
  224. Kufeld, Scott E.; Mutchler, Joel A., Process for forming polyolefins.
  225. Marissal, Daniel; Van Breuseghem, Philip; Walworth, Brent R., Process for introduction of liquid feeds to a polymerization process.
  226. Yang, Qing; McDaniel, Max P.; Martin, Joel L.; Crain, Tony R.; Muninger, Randy S.; Lanier, Jerry T.; Fodor, Jeff S.; Deslauriers, Paul J.; Tso, Chung C.; Rohlfing, David C., Process for producing broader molecular weight distribution polymers with a reverse comonomer distribution and low levels of long chain branches.
  227. Yang, Qing; McDaniel, Max P.; Martin, Joel L.; Crain, Tony R.; Muninger, Randy S.; Lanier, Jerry T.; Fodor, Jeff S.; Deslauriers, Paul J.; Tso, Chung C.; Rohlfing, David C., Process for producing broader molecular weight distribution polymers with a reverse comonomer distribution and low levels of long chain branches.
  228. Benham, Elizabeth A.; Nease, Charles R.; McDaniel, Max P., Process of melt index control.
  229. Cymbaluk, Ted H.; McDaniel, Max P.; Yang, Qing; Holtermann, Dennis L., Processes for preparing metallocene-based catalyst systems.
  230. Cymbaluk, Ted H.; McDaniel, Max P.; Yang, Qing; Holtermann, Dennis L.; Crain, Tony R., Processes for preparing metallocene-based catalyst systems.
  231. McDaniel, Max P.; Yang, Qing; Crain, Tony R., Processes for preparing metallocene-based catalyst systems.
  232. Clark, Kensha Marie; Yang, Qing; Glass, Gary L., Processes for preparing metallocene-based catalyst systems in cyclohexene.
  233. Clark, Kensha Marie; Yang, Qing; Glass, Gary L., Processes for preparing metallocene-based catalyst systems in cyclohexene.
  234. Clark, Kensha M.; Yang, Qing; Glass, Gary L., Processes for preparing solid metallocene-based catalyst systems.
  235. Clark, Kensha M.; Yang, Qing; Glass, Gary L., Processes for preparing solid metallocene-based catalyst systems.
  236. Clark, Kensha M.; Yang, Qing; Glass, Gary L., Processes for preparing solid metallocene-based catalyst systems.
  237. Clark, Kensha Marie; Yang, Qing; Glass, Gary L., Production of high haze films using metallocene-based catalyst systems in cyclohexene.
  238. Hottovy, John D.; Zellers, Dale A.; Franklin, III, Robert K.; Russell, Donald Paul, Pumping apparatus and process for polymerization in loop reactors.
  239. McDaniel, Max P.; Kelly, Stephen L., Reinforcement of a chromium/silica catalyst with silicate oligomers.
  240. Marissal, Daniel; Van Breuseghem, Philip; Walworth, Brent R., Separation of monomer components from light components.
  241. McDaniel, Max P.; Yang, Qing; Muninger, Randy S.; Benham, Elizabeth A.; Clear, Kathy S., Silica-coated alumina activator-supports for metallocene catalyst compositions.
  242. McDaniel, Max P.; Yang, Qing; Muninger, Randy S.; Benham, Elizabeth A.; Clear, Kathy S., Silica-coated alumina activator-supports for metallocene catalyst compositions.
  243. McDaniel, Max P.; Yang, Qing; Muninger, Randy S.; Benham, Elizabeth A.; Clear, Kathy S., Silica-coated alumina activator-supports for metallocene catalyst compositions.
  244. McDaniel, Max P.; Yang, Qing; Muninger, Randy S.; Benham, Elizabeth A.; Collins, Kathy S., Silica-coated alumina activator-supports for metallocene catalyst compositions.
  245. Lynn, Timothy R., Slurry catalyst flow splitters and methods of using the same.
  246. Buck, Richard M.; Yang, Qing, Stereoselective synthesis of bridged metallocene complexes.
  247. Buck, Richard M.; Yang, Qing, Stereoselective synthesis of bridged metallocene complexes.
  248. Hlavinka, Mark L., Synthesis of aryl coupled bis phenoxides and their use in olefin polymerization catalyst systems with activator-supports.
  249. Hlavinka, Mark L., Synthesis of aryl coupled bis phenoxides and their use in olefin polymerization catalyst systems with activator-supports.
  250. Hottovy, John D.; Peacock, Richard, System and method for closed relief of a polyolefin loop reactor system.
  251. Hottovy, John D.; Peacock, Richard, System and method for closed relief of a polyolefin loop reactor system.
  252. Mills, Andrew J.; Romig, Ralph W.; Loh, Ji Xian X., System and method for processing reactor polymerization effluent.
  253. Mills, Andrew J.; Romig, Ralph W.; Loh, Ji Xian X., System and method for processing reactor polymerization effluent.
  254. Mills, Andrew J.; Romig, Ralph W.; Loh, Ji Xian X., System and method for processing reactor polymerization effluent.
  255. Mills, Andrew J.; Romig, Ralph W.; Loh, Ji Xian X., System and method for processing reactor polymerization effluent.
  256. McDaniel, Max P.; Mutchler, Joel A., Systems and methods for real-time catalyst particle size control in a polymerization reactor.
  257. McDaniel, Max P.; Mutchler, Joel A., Systems and methods for real-time catalyst particle size control in a polymerization reactor.
  258. Hottovy, John D.; Hendrickson, Gregory G., Temperature control for polymerizing particulate polyolefin.
  259. Cruz, Carlos A.; Barr, Jared L.; Praetorius, Jeremy M., Titanium phosphinimide and titanium iminoimidazolidide catalyst systems with activator-supports.
  260. Cruz, Carlos A.; Barr, Jared L.; Praetorius, Jeremy M., Titanium phosphinimide and titanium iminoimidazolidide catalyst systems with activator-supports.
  261. Romig, Ralph W.; McElvain, Robert R.; Page, Steve E., Treater regeneration.
  262. Romig, Ralph W.; McElvain, Robert R.; Page, Steve E., Treater regeneration.
  263. Romig, Ralph W.; Odi, Timothy O.; Drew, Jennifer F., Treater regeneration.
  264. Romig, Ralph W.; Odi, Timothy O.; Drew, Jennifer F., Treater regeneration.
  265. Donck, Jan C; Lammens, Henri A, Tubular polymerization reactors and polymers made therein.
  266. Donck, Jan Cyriel, Tubular polymerization reactors and polymers made therein.
  267. Donck, Jan Cyriel, Tubular polymerization reactors and polymers made therein.
  268. Donck, Jan Cyriel, Tubular polymerization reactors and polymers made therein.
  269. Ding, Errun; Yang, Qing; Masino, Albert P.; Yu, Youlu; Guatney, Lloyd W.; Askew, Jim B., Use of hydrogen and an organozinc compound for polymerization and polymer property control.
  270. Ding, Errun; Yang, Qing; Masino, Albert P.; Yu, Youlu; Guatney, Lloyd W.; Askew, Jim B., Use of hydrogen and an organozinc compound for polymerization and polymer property control.
  271. Murray, Rex E.; Beaulieu, William B.; Yang, Qing; Ding, Errun; Glass, Gary L.; Solenberger, Alan L.; Secora, Steve J., Use of hydrogen scavenging catalysts to control polymer molecular weight and hydrogen levels in a polymerization reactor.
  272. Murray, Rex E.; Beaulieu, William B.; Yang, Qing; Ding, Errun; Glass, Gary L.; Solenberger, Alan L.; Secora, Steven J., Use of hydrogen scavenging catalysts to control polymer molecular weight and hydrogen levels in a polymerization reactor.
  273. Murray, Rex E.; Beaulieu, William B.; Yang, Qing; Ding, Errun; Glass, Gary L.; Solenberger, Alan L.; Secora, Steven J., Use of hydrogen scavenging catalysts to control polymer molecular weight and hydrogen levels in a polymerization reactor.
  274. Schwerdtfeger, Eric D.; Hert, Daniel G.; McDaniel, Max P., Use of turbidimeter for measurement of solid catalyst system component in a reactor feed.
  275. McDaniel, Max P.; Collins, Kathy S.; Yang, Qing; Crain, Tony R., Vapor phase preparation of fluorided solid oxides.
  276. Ding, Errun; Tso, Chung C.; Yu, Youlu; Yang, Qing; Buck, Richard M., Ziegler-Natta—metallocene dual catalyst systems with activator-supports.
  277. Ding, Errun; Tso, Chung C.; Yu, Youlu; Yang, Qing; Buck, Richard M., Ziegler-natta—metallocene dual catalyst systems with activator-supports.
  278. Ding, Errun; Yang, Qing; Guatney, Lloyd W.; Greco, Jeffrey F., Ziegler-natta—metallocene dual catalyst systems with activator-supports.

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