WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2008097422) METHODS OF CONTROLLING POLYMER PROPERTIES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2008/097422    International Application No.:    PCT/US2008/000731
Publication Date: 14.08.2008 International Filing Date: 18.01.2008
Chapter 2 Demand Filed:    21.11.2008    
IPC:
C08F 4/44 (2006.01), C08F 210/16 (2006.01), C08F 4/00 (2006.01)
Applicants: UNIVATION TECHNOLOGIES, LLC [US/US]; 5555 San Felipe St., Suite 1950, Houston, TX 77056-2746 (US) (For All Designated States Except US).
KOLB, Rainer [DE/US]; (US) (For US Only).
FARLEY, James, M. [US/US]; (US) (For US Only).
SZUL, John, F. [US/US]; (US) (For US Only).
OSSOWSKI, Mark, P. [US/US]; (US) (For US Only)
Inventors: KOLB, Rainer; (US).
FARLEY, James, M.; (US).
SZUL, John, F.; (US).
OSSOWSKI, Mark, P.; (US)
Agent: ARECHEDERRA, Leandro, III; Univation Technologies, LLC, 5555 San Felipe St., Suite 1950, Houston, TX 77056-2746 (US)
Priority Data:
60/899,526 05.02.2007 US
Title (EN) METHODS OF CONTROLLING POLYMER PROPERTIES
(FR) PROCÉDÉS DE RÉGULATION DES PROPRIÉTÉS DE POLYMÈRE
Abstract: front page image
(EN)The invention generally provides for methods for controlling polymer properties. In particular, invention provides for methods for controlling the comonomer composition distribution of polyolefins such as ethylene alpha-olefin copolymers by altering at least one or more of the following parameters: the molar ratio of hydrogen to ethylene, the molar ratio of comonomer to ethylene, the partial pressure of ethylene, and the reactor temperature without substantially changing the density and/or the melt index of the copolymer.
(FR)L'invention propose en général des procédés pour réguler des propriétés de polymère. L'invention propose en particulier des procédés pour réguler la répartition dans une composition comonomère de polyoléfines telles que des copolymères d'éthylène alpha-oléfine en changeant au moins un ou plusieurs des paramètres suivants : le rapport molaire hydrogène/éthylène, le rapport molaire comonomère/éthylène, la pression partielle de l'éthylène et la température de réacteur, sans changer sensiblement la densité et/ou l'indice de fusion du copolymère.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)