Scott E Allen

US Patent:

7399822, Jul 15, 2008

Filed:

Jun 19, 2006

Appl. No.:

11/454945

Inventors:

Geoffrey W. Coates - Ithaca NY, US
Scott D. Allen - Ithaca NY, US
Claire Cohen - Toledo OH, US
Kathryn Peretti - Ithaca NY, US
Hiroharu Ajiro - Osaka, JP

Assignee:

Cornell Research Foundation, Inc. - Ithaca NY

International Classification:

C08G 65/12
C08G 65/10

US Classification:

528412, 528421, 502150, 502171

Abstract:

(Salph or methoxy salph) Co (initiating ligand) catalyze homopolymerizing rac-PO to produce pure highly isotactic PPO and rac-1-butylene oxide to produce pure isotactic poly(butylene oxide). A product is unfractionated isotactic PPO of m-dyad content >81%, normally at least 99%.

US Patent:

7858729, Dec 28, 2010

Filed:

May 29, 2008

Appl. No.:

12/129106

Inventors:

Scott D. Allen - Ithaca NY, US

Assignee:

Novomer, Inc. - Ithaca NY

International Classification:

C08G 64/00
C08G 63/02

US Classification:

528200, 502102, 502103, 502117, 502140, 502155, 502160, 526126, 526127, 526160, 526161, 528196, 528198

Abstract:

A catalyst, co-catalyst, and/or chain transfer agent is added at a time after initiation of an addition polymerization reaction to produce a polymer product with a widened molecular weight distribution relative to having all of the components in the original reaction mixture. The catalyst, co-catalyst, or chain transfer agent may be added discretely or continuously to the reaction to produce a product with a bimodal, trimodal, or other broadened molecular weight distribution.

US Patent:

8026317, Sep 27, 2011

Filed:

Jun 12, 2008

Appl. No.:

12/155962

Inventors:

Geoffrey W. Coates - Ithaca NY, US
Scott D. Allen - Ithaca NY, US
Claire Cohen - Toledo OH, US
Kathryn Peretti - Ithaca NY, US
Hiroharu Ajiro - Minoh, JP

Assignee:

Cornell Research Foundation, Inc. - Ithaca NY

International Classification:

C08L 71/02
C08G 65/08
C08G 65/10
C08G 65/12

US Classification:

525409, 528412, 528421

Abstract:

(Salph or methoxy salph) Co (initiating ligand) catalyze homopolymerizing rac-PO to produce pure highly isotactic PPO and rac-1-butylene oxide to produce pure isotactic poly(butylene oxide). A product is unfractionated isotactic PPO of m-dyad content >81%, normally at least 99%.

US Patent:

8247520, Aug 21, 2012

Filed:

Sep 8, 2009

Appl. No.:

12/994544

Inventors:

Scott D. Allen - Ithaca NY, US
Geoffrey W. Coates - Ithaca NY, US
Anna E. Cherian - Ithaca NY, US
Chris A. Simoneau - Ithaca NY, US
Alexei A. Gridnev - Ithaca NY, US
Jay J. Farmer - Ithaca NY, US

Assignee:

Novomer, Inc. - Ithaca NY

International Classification:

C08G 63/02
C08G 63/00

US Classification:

528196, 528198, 528398

Abstract:

In one aspect, the present disclosure encompasses polymerization systems for the copolymerization of COand epoxides comprising 1) a catalyst including a metal coordination compound having a permanent ligand set and at least one ligand that is a polymerization initiator, and 2) a chain transfer agent having two or more sites that can initiate polymerization. In a second aspect, the present disclosure encompasses methods for the synthesis of polycarbonate polyols using the inventive polymerization systems. In a third aspect, the present disclosure encompasses polycarbonate polyol compositions characterized in that the polymer chains have a high percentage of —OH end groups and a high percentage of carbonate linkages. The compositions are further characterized in that they contain polymer chains having an embedded polyfunctional moiety linked to a plurality of individual polycarbonate chains.

US Patent:

8252891, Aug 28, 2012

Filed:

Sep 17, 2009

Appl. No.:

13/119408

Inventors:

Anna E. Cherian - Ithaca NY, US
Jeffrey R. Conuel - Ithaca NY, US
David E. Decker - Ithaca NY, US
Scott D. Allen - Ithaca NY, US

Assignee:

Novomer, Inc. - Ithaca NY

International Classification:

B32B 27/06
C08G 65/00

US Classification:

528480, 528405

Abstract:

The present disclosure provides, in part, a method for removing a catalyst from a product of catalyzed aliphatic polycarbonate polymerization reaction.

US Patent:

8324337, Dec 4, 2012

Filed:

Nov 17, 2010

Appl. No.:

12/948191

Inventors:

Scott D. Allen - Ithaca NY, US

Assignee:

Novomer Inc. - Ithaca NY

International Classification:

C08G 64/00
C08G 64/02

US Classification:

528200, 502102, 502103, 502117, 502140, 502155, 526127, 526160, 526161, 528370

Abstract:

A catalyst, co-catalyst, and/or chain transfer agent is added at a time after initiation of an addition polymerization reaction to produce a polymer product with a widened molecular weight distribution relative to having all of the components in the original reaction mixture. The catalyst, co-catalyst, or chain transfer agent may be added discretely or continuously to the reaction to produce a product with a bimodal, trimodal, or other broadened molecular weight distribution.

US Patent:

8333666, Dec 18, 2012

Filed:

Mar 5, 2010

Appl. No.:

12/718236

Inventors:

Andrew Magnus Ekberg - Superior CO, US
Kerry E. Kramlich - Littleton CO, US
Scott Marvin Allen - Evergreen CO, US
David M. Carr - Superior CO, US
Ray L. Hauser - Boulder CO, US

Assignee:

Sundyne Corporation - Arvada CO

International Classification:

F16D 27/00
H02K 15/00
H02K 49/00

US Classification:

464 29, 417420, 4174237, 310104

Abstract:

An inner drive for a magnetic drive pump includes a magnet supported on a yoke. The inner drive is driven about an axis to pump a corrosive process fluid. The magnet and yoke are fully encapsulated during the molding process to completely surround the magnet and yoke in a protective plastic shell. A sleeve is arranged radially outwardly of the magnet to provide further protection. Backing rings are arranged on either side of the magnet. A bonding material joins the plastic shell to the backing rings and sleeve to prevent a space from forming beneath the plastic shell that would become filled with the process fluid once it has permeated the plastic shell. A protective coating is arranged on at least a portion of the magnet to further insulate the magnet from the process fluid.

US Patent:

8445703, May 21, 2013

Filed:

Apr 7, 2010

Appl. No.:

13/262985

Inventors:

Scott D. Allen - Ithaca NY, US
Ronald R. Valente - Ithaca NY, US
Han Lee - Ithaca NY, US
Anna E. Cherian - Ithaca NY, US
Donald L. Bunning - South Charleston WV, US
Nye A. Clinton - Hurricane WV, US
Olan Stanley Fruchey - Hurricane WV, US
Bernard Duane Dombek - Charleston WV, US

Assignee:

Novomer, Inc. - Ithaca NY

International Classification:

C07D 305/12

US Classification:

549328

Abstract:

The present application provides a method for producing an beta-lactone product. The method includes the steps of: reacting an epoxide, a solvent with a carbonylation catalyst and carbon monoxide to produce a reaction stream comprising a beta-lactone then separating a portion of the beta-lactone in the reaction stream from the solvent and carbonylation catalyst to produce: i) a beta-lactone stream with the beta-lactone, and ii) a catalyst recycling stream including the carbonylation catalyst and the high boiling solvent; and adding the catalyst recycling stream to the feed stream.