Paul Kevin Hanna

US Patent:

57235740, Mar 3, 1998

Filed:

Oct 31, 1991

Appl. No.:

7/785644

Inventors:

Paul K. Hanna - East Windsor NJ
Andrzej M. Piotrowski - Peekskill NY

Assignee:

Akzo Nobel NV

International Classification:

C08G 6702

US Classification:

528493

Abstract:

Catalyst residues are removed from polyketone compositions by use of a beta diketone compound, e. g. , an acetylacetone reagent.

US Patent:

52311643, Jul 27, 1993

Filed:

Feb 26, 1992

Appl. No.:

7/842785

Inventors:

Andrzej M. Piotrowski - Peekskill NY
Paul K. Hanna - East Windsor NJ

Assignee:

Akzo N.V. - Arnhem

International Classification:

C08G 6702

US Classification:

528485

Abstract:

Catalyst residue (e. g. , trace Group VIII metal) is removed from a polyketone solution, and from the polyketone resin itself, by passing the solution through a column comprising a metal oxide (e. g. , silica gel) which is effective in removing the residue therefrom or by mixing the polyketone solution with particulate metal oxide.

US Patent:

52704416, Dec 14, 1993

Filed:

Jul 10, 1992

Appl. No.:

7/912230

Inventors:

Paul K. Hanna - East Windsor NJ
Andrzej M. Piotrowski - Peekskill NY
David L. Kershner - Tenafly NJ

Assignee:

Akzo nv - Arnhem

International Classification:

C08G 6702

US Classification:

528392

Abstract:

A linear alternating copolymer of carbon monoxide and propylene, which is substantially free of ester and ether linkages, is formed by the catalyzed reaction of carbon monoxide and propylene in a ketone solvent medium (e. g. , acetone). Acid end groups can be introduced if a mixture of water and ketone is used.

US Patent:

53310837, Jul 19, 1994

Filed:

Jul 22, 1993

Appl. No.:

8/096754

Inventors:

Paul K. Hanna - East Windsor NJ
Teresa M. Cheron - Yonkers NY

Assignee:

Akzo Nobel N.V. - Arnhem

International Classification:

C08G 6702

US Classification:

528392

Abstract:

Polyketones can be formed in enhanced yield by conducting the polymerization of the carbon monoxide and olefin monomers used to form the polyketone in a gas phase polymerization process in the presence of an effective amount of a liquid, non-polymerizable diluent which is effective in increasing the amount of polyketone formed over that which would be formed in the substantial absence of the diluent. Preferably, the catalyst is supported on a high surface area support (e. g. , a carbon monoxide-ethylene high surface area support). Hydrogen gas can be used to reduce the molecular weight and increase the bulk density and thermal stability of the polyketone product.

US Patent:

55233856, Jun 4, 1996

Filed:

Jun 6, 1995

Appl. No.:

8/466321

Inventors:

Paul K. Hanna - East Windsor NJ
Andrzej M. Piotrowski - Peekskill NY
Kelly B. Triplett - Stamford CT

Assignee:

Akzo Nobel N. V. - Arnhem

International Classification:

C08G 6702
C08F 448

US Classification:

528392

Abstract:

Carbon monoxide and ethylene are polymerized in the presence of a catalytically effective amount of a catalyst formed from a Group VIII metal source, such as palladium, a bidentate ligand containing a Group VA or VIA heteroatom, such as phosphorus, and an anion which is a non-coordinating, non-acidic tetrasubstituted anion containing a Group IIIA element, such as boron, with the anion preferably being either an unsubstituted or substituted boron tetraphenyl compound. The catalyst is advantageously formed by the exchange reaction of a ligand-conjugated Group VIII metal salt with a salt containing the non-coordinating, non-acidic tetrasubstituted anion containing the Group IIIA element in a solvent medium which causes the separation (due to differing solubilities) of the desired catalyst from the by-product of the reaction which comprises the anion from salt which was used as the Group VIII metal source and the cation from the salt used as the source of the non-coordinating, non-acidic tetrasubstituted anion containing the Group IIIA element. The resulting polyketone product has novel thermal stability characteristics.

US Patent:

53843932, Jan 24, 1995

Filed:

Apr 29, 1994

Appl. No.:

8/235207

Inventors:

Paul K. Hanna - East Windsor NJ
Andrzej M. Piotowski - Peekskill NY
David L. Kershner - Tenafly NJ

Assignee:

Akzo Nobel N.V. - Arnhem

International Classification:

C08G 6702

US Classification:

528392

Abstract:

A linear alternating copolymer of carbon monoxide and propylene, which is substantially free of ester and ether linkages, is formed by the catalyzed reaction of carbon monoxide and propylene in a ketone solvent medium (e. g. , acetone). Acid end groups can be introduced if a mixture of water and ketone is used.

US Patent:

54400104, Aug 8, 1995

Filed:

Jun 27, 1994

Appl. No.:

8/268071

Inventors:

Teresa M. Cheron - Yonkers NY
Paul K. Hanna - East Windsor NJ
Claude B. Peterson - Middletown NY

Assignee:

Akzo Nobel N.V. - Arnhem

International Classification:

C08G 6702

US Classification:

528392

Abstract:

Polyketones can be formed in enhanced yield by conducting the polymerization of the carbon monoxide and olefin monomers used to form the polyketone in a gas phase polymerization process in the presence of a polyketone catalyst support which is substantially saturated with an amount of a liquid, non-polymerizable diluent which is effective in increasing the amount of polyketone formed over that which would be formed in the substantial absence of the diluent. The catalyst support which is substantially saturated with the liquid, non-polymerizable diluent is formed in a previous solution polymerization step in which the polyketone catalyst support is formed by polymerizing carbon monoxide and an olefin in the diluent comprising a catalyst so that the polymer which is formed adsorbs substantially all the diluent followed by continuation of the reaction substantially in the gas phase in the presence of the saturated polyketone catalyst support.

US Patent:

51028433, Apr 7, 1992

Filed:

Apr 16, 1991

Appl. No.:

7/686090

Inventors:

Paul K. Hanna - East Windsor NJ
Andrzej M. Piotrowski - Peekskill NY

Assignee:

Akzo NV - Arnhem

International Classification:

B01J 3124

US Classification:

502154

Abstract:

Polyketone copolymers can be formed by polymerizing carbon monoxide and an olefin in the presence of a Group VIII metal (e. g. , palladium) complex containing a bis(diphenylphosphino)ferrocene bidentate ligand and an anion of an acid having a pKa of less than 2 (e. g. , para-toluenesulfonic acid).