FIELD: chemistry of polymers, particularly, chemical industry, more specifically manufacture of plastic materials. SUBSTANCE: described is method of preparing stereoregular polypropylene by polymerization of propylene in liquid monomer by heating in the presence of homogeneous catalyst system based on zirconocene and methyl alumoxane. Polymerization process includes prepolymerization stage at lower temperature, for which purpose methyl alumoxane solution in toluene is added into thermostated reactor filled with liquid propylene, zirconocene solution in toluene solution of methyl alumoxane is then added and stirred at 5-12 C for 5-7 min and temperature in reactor is then raised to 50-70 C, and polymerization is continued. EFFECT: simplified process. 10 cl, 2 dwg, 1 tbl
| Title |
Year |
Author |
Number |
| ANSSA-ZIRCONOCENES FUNCTIONED WITH RESPECT TO CYCLOSILANE BRIDGES, AND METHOD OF PREPARATION THEREOF |
1999 |
- Lemenovskij D.A.
- Krut'Ko D.P.
- Borzov M.V.
- Brusova G.P.
- Veksler Eh.N.
- Nedorezova P.M.
- Tsvetkova V.I.
|
RU2160277C1 |
| METHOD OF PREPARING HEAT- AND ELECTROCONDUCTIVE MATERIAL, AND MATERIAL PREPARED BY THIS METHOD |
2001 |
- Nedorezova P.M.
- Shevchenko V.G.
- Kljamkina A.N.
- Monakhova T.V.
- Tsvetkova V.I.
- Lemenovskij D.A.
|
RU2200170C1 |
| HOMOGENEOUS CATALYTIC SYSTEM FOR SYNTHESIS OF POLYETHYLENE AND STEREOBLOCK POLYPROPYLENE, METHOD OF PREPARING STEREOBLOCK POLYPROPYLENE, AND METHOD OF PREPARING POLYETHYLENE |
2000 |
- Bravaja N.M.
- Tsvetkova V.I.
- Nedorezova P.M.
- Bazhenova T.A.
- Saratovskikh S.L.
- Panin A.N.
|
RU2178423C2 |
| IMMOBILIZED CATALYST FOR MONO-AND COPOLYMERIZATION OF OLEFINS, METHOD OF PREPARING THEREOF AND METHOD OF PREPARING HOMO-AND COPOLYMERS OF OLEFINS |
1999 |
- Bravaja N.M.
- Chukanova O.M.
- Saratovskikh S.L.
- Babkina O.N.
- Panin A.N.
|
RU2171814C1 |
| METHOD OF PRODUCING COPOLYMERS OF OLEFIN MONOMERS WITH CYCLIC OR LINEAR DIENES |
2011 |
- Bravaja Natal'Ja Mikhajlovna
- Panin Andrej Nikolaevich
|
RU2477289C1 |
| COMPLEX ORGANOMETALLIC PROPYLENE POLYMERIZATION CATALYST AND METHOD FOR PRODUCTION OF ELASTOMER STEREOBLOCK POLYPROPYLENE |
2004 |
- Dzhabieva Zinaida Mikhajlovna
- Topilin Sergej Vasil'Evich
- Kuznetsova Svetlana Aleksandrovna
- Dzhabiev Tejmuraz Savel'Evich
- Atovmjan Lev Oganovich
- Aldoshin Sergej Mikhajlovich
|
RU2275380C2 |
| HOMOGENOUS CATALYTIC SYSTEM FOR SYNTHESIS OF COPOLYMERS OF ETHYLENE WITH PROPYLENE AND HIGHER α-OLEFINS AND ALSO PROPYLENE WITH HIGHER α-OLEFINS, METHOD OF PRODUCING COPOLYMERS OF ETHYLENE WITH PROPYLENE AND HIGHER α-OLEFINS AND ALSO PROPYLENE WITH HIGHER α-OLEFINS |
2003 |
|
RU2250237C2 |
| HOMOGENEOUS CATALYTIC SYSTEM FOR SYNTHESIS OF LOW-MOLECULAR BRANCHED POLYETHYLENE AND METHOD OF PREPARING LOW-MOLECULAR BRANCHED POLYETHYLENE |
1999 |
- Bravaja N.M.
- Panin A.N.
- Babkina O.N.
- Karpova N.D.
|
RU2161628C1 |
| METHOD OF OLEFIN POLYMERIZATION AND CATALYTIC SYSTEM |
1997 |
- Kholi Gil R.
- Fejkhi Darril Richard
- Kholterman Ronal'D Li
- Rehmsi Timoti Majkl
|
RU2193042C2 |
| USE OF ARYL OXIDES OF ISOBUTYL ALUMINIUM AS ACTIVATORS DIALKYL METALLOCENE CATALYSTS FOR HOMOPOLYMERISATION ETHYLENE, PROPYLENE, COPOLYMERISATION OF ETHYLENE WITH PROPYLENE AND TRIPLE COPOLYMERISATION OF ETHYLENE, PROPYLENE AND DIENE, HOMOGENEOUS METALLOCENE CATALYST SYSTEMS FOR SYNTHESIS OF HOMO-AND COPOLYMERS OF OLEFINS AND DIENES, METHOD OF PRODUCING HOMO- AND COPOLYMERS OF OLEFINS AND DIENES, METHOD FOR STABILISATION OF HOMO- AND COPOLYMERS OF OLEFINS AND DIENES |
2014 |
- Fajngold Evgenij Efimovich
- Bravaya Natalya Mikhajlovna
- Panin Andrej Nikolaevich
- Saratovskikh Stanislav Lvovich
- Babkina Olga Nikolaevna
|
RU2588496C2 |
