Catalyst composition and methods for its preparation and use in a polymerization process
AssigneeUnivation Technologies, LLC
InventorsAgapios Kyriacos Agapiou, Chi-I Kuo, David M. Glowczwski, Steven K. Ackerman
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Abstract
The present invention relates to a catalyst composition and a method for making the catalyst composition which comprises a polymerization catalyst and at least one gelling agent. The invention is also directed to the use of the catalyst composition in the polymerization of olefin(s). In particular, the polymerization catalyst system is supported on a carrier.
Claims11
A continuous process for polymerizing olefin monomer(s) in a reactor under polymerization conditions, the process comprising the steps of:
- (a) introducing olefin monomer(s) to the reactor;
- (b) introducing a polymerization catalyst composition and at least one gelling agent to the reactor;
- and
- (c) withdrawing a polymer product from the reactor;
- wherein the gelling agent is selected from of the group consisting of:
- diester phosphates, steroid and anthryl derivatives, amino acid-containing gelators, and tetraoctadecyl ammonium bromide, and wherein said polymerization catalyst composition comprises catalysts selected from the group consisting of metallocene catalyst compounds.
A continuous gas phase process for polymerizing olefin monomer(s) in a reactor, said process comprising the steps of:
- (a) introducing a recycle stream into the reactor, the recycle stream comprising one or more olefin monomer(s);
- (b) introducing a polymerization catalyst composition and at least one gelling agent into the reactor;
- (c) withdrawing the recycle stream from the reactor;
- (d) cooling the recycle stream;
- (e) reintroducing the recycle stream into the reactor;
- (f) introducing into the reactor additional monomer(s) to replace the monomer(s) polymerized;
- and
- (g) withdrawing a polymer product from the reactor;
- wherein the gelling agent is selected from of the group consisting of:
- diester phosphates, steroid and anthryl derivatives, amino acid-containing gelators, and tetraoctadecyl ammonium bromide, and wherein said polymerization catalyst composition comprises catalysts selected from the group consisting of metallocene catalyst compounds.
A continuous process for polymerizing olefin monomer(s) in a reactor under polymerization conditions, the process comprising the steps of:
- (a) introducing olefin monomer(s) to the reactor;
- (b) introducing a polymerization catalyst composition and at least one gelling agent to the reactor;
- and
- (c) withdrawing a polymer product from the reactor, wherein the gelling agent is a diester phosphate, and wherein said polymerization catalyst is selected from the group consisting of TiCl4, TiBr4, Ti(OC2H5)3Cl, Ti(OC2H5)Cl3, Ti(OC4H9)3Cl, Ti(OC3H7)2Cl2, Ti(OC2H5)2Br2, TiCl3.⅓AlCl3 and Ti(OC12H25)Cl3, MgTiCl6(ethyl acetate)4, chromium catalyst compounds, and metallocene catalyst compounds.
A continuous process for polymerizing olefin monomer(s) in a reactor under polymerization conditions, the process comprising the steps of:
- (a) introducing olefin monomer(s) to the reactor;
- (b) introducing a polymerization catalyst composition and at least one gelling agent to the reactor;
- and
- (c) withdrawing a polymer product from the reactor, wherein the gelling agent is selected from the group consisting of:
- dihexadecylaluminum ortho phosphate, 2,3-bis-n-decyloxy-anthraquinone, (OH)Al(ROPOMe)2;
- (Et)Al(ROPOMe)2;
- (Et)Al(ROPOMe)2;
- and Mg(ROPOMe)2, where R is C12-20H21-37,2,3-bis-n-decyloxy-anthracene, cholesteryl 4-(2-anthryloxy)butanoate and cholesteryl anthraquinone-2-carboxylate, wherein said polymerization catalyst composition comprises catalysts selected from the group consisting of metallocene catalyst compounds.
Dependencies are inferred from the claim text.