Abstract: A beverage can having an indentation on the top portion to accommodate the nose of the consumer and an indentation on the wall portion to accommodate the lip of the consumer, thus minimizing spillage.
Abstract: A process for preparing a cyclopentadienyl or indenyl ruthenium complex by treatment of a cyclopentadienyl or indenyl compound with ruthenium trichloride dihydrate and magnesium powder in an alkanol at 10° C. to −30° C. is described.
Type:
Grant
Filed:
June 21, 2002
Date of Patent:
November 4, 2003
Assignee:
Boulder Scientific Company
Inventors:
Karin A. Voll Barclay, Jeffrey M. Sullivan, Dawn A. Arkin, Fredric R. Askham
Abstract: Conversion of cyclopentadienyl or indenyl compounds to titanium organometallic complexes by treatment with titanium tetraalkoxides is described.
Type:
Grant
Filed:
November 9, 2001
Date of Patent:
July 8, 2003
Assignee:
Boulder Scientific Company
Inventors:
Daniel A. Gately, Jeffrey M. Sullivan, Karin A. Voll Barclay, Dawn A. Arkin
Abstract: Cyclopentadienyl or indenyl titanium trichlorides are produced by converting a cyclopentadiene or an indene to a corresponding cyclopentadienyl or indenyl titanium trialkoxide which is treated with a halogenating agent to provide the desired cyclopentadienyl or indenyl titanium trichloride.
Type:
Grant
Filed:
January 8, 2002
Date of Patent:
March 11, 2003
Assignee:
Boulder Scientific Company
Inventors:
Daniel A. Gately, Jeffrey M. Sullivan, Karin A. Voll Barclay, Dawn A. Arkin
Abstract: A method for treating a terminal dihalo hydrocarbyl compound with an alkali metal indenide to produce a bis(indenyl) hydrocarbyl compound is described.
Abstract: A method for producing 1,2-bis(indenyl)ethanes in good yield is described. An agent and its application for isomerizing kinetic EBI to thermodynamic EBI and for isomerizing meso TMS-EBI to rac TMS-EBI are exemplified.
Abstract: Novel 2-substituted 7-haloindenes and methods for synthesizing such indenes are described. The 2-substituted 7-haloindenes may be coupled with any aryl group to produce a metallocene catalyst intermediate.
Abstract: A novel constrained geometry titanium(II) diene complex and ligands of such complexes are described. The novel complex has an olefin polymerization activity substantially in excess of a defined activity standard characteristic of analogous prior art constrained geometry diene complexes. Methods for the synthesis of the novel, high-activity complexes are described.
Abstract: A method for producing a titanocene wherein a TiCl3 complex free from salts of metals other than titanium is reacted with a titanocene ligand.
Abstract: A method for producing 1,2-bis(indenyl)ethanes in good yield is described. An agent and its application for isomerizing kinetic EBI to thermodynamic EBI and for isomerizing meso TMS-EBI to rac TMS-EBI are exemplified.
Abstract: A method for synthesizing tetramethylcyclopentadiene from 2,3-dibromobutane is described. A 2-bromo-2-butene Grignard is reacted with an ethyl formate to produce a 3,5-dimethyl-2,5-heptadiene-4-ol magnesium bromide which is then quenched with acetic acid to produce 3,5-dimethyl-2,5-hepadiene-4-ol.
Type:
Grant
Filed:
November 24, 1998
Date of Patent:
May 14, 2002
Assignee:
Boulder Scientific Company
Inventors:
Jeffrey M. Sullivan, Richard D. Crawford
Abstract: The reduction of a titanium tetrahalide with titanium in the presence of an ether which forms an adduct with titanium trihalide, wherein an adduct insoluble in said ether is produced.
Abstract: 2-alkyl-4-(2,6-dialkylphenyl) indenes, methods for the synthesis thereof, methods for converting such indenes to bridged metallocene ligands, methods for converting such ligands to bridged metallocenes and olefin polymerization processes in which such metallocenes are used as a catalyst or as a component of a catalyst system are described.
Type:
Grant
Filed:
August 24, 1999
Date of Patent:
September 18, 2001
Assignee:
Boulder Scientific Company
Inventors:
John M. Birmingham, Sandra Russo-Rodriguez
Abstract: Pentafluorophenyl Grignard reagents are reacted with a boron trihalide in a non-ethereal solvent such as toluene to produce a tetrakis pentafluorophenyl borate magnesium halide.
Abstract: A method for producing dialkylsilylbis(2-alkyl-4-aryl indenyl) titanocenes including rac-Me2Sibis(2-methyl-4-phenylindenyl)-titanium dichloride is described.
Abstract: A process for preparing tetrakis (pentafluorophenyl) borate is described that involves reaction of a pentafluorophenyl magnesium halide with an alkali metal tetrafluoroborate.