Anthony G Schaefer

US Patent:

6346558, Feb 12, 2002

Filed:

Aug 7, 2001

Appl. No.:

09/923571

Inventors:

David D. Peters - Wyandotte MI
Robert E. Riley - Brownstown MI
Jimmy L. Patterson - New Boston MI
Anthony G. Schaefer - Wyandotte MI

Assignee:

BASF Corporation - Mt. Olive NJ

International Classification:

C08J 914

US Classification:

521114, 521122, 521131, 521172

Abstract:

A polyester polyol composition comprising a phthalic anhydride-initiated polyester polyol, a C -C hydrocarbon blowing agent, and an alkylene oxide modified silicone glycol compatibilizing agent having an HLB of from about 5 to about 8 is disclosed. The blowing agent is soluble in the polyol composition, thereby reducing the risks associated with such blowing agents in processes for making rigid polymer foam articles and providing rigid foams having good dimensional stability and improved insulation properties. An alkylene oxide and isocyanate modified silicone glycol compatibilizing agent is also disclosed.

US Patent:

6451101, Sep 17, 2002

Filed:

Dec 29, 2000

Appl. No.:

09/751008

Inventors:

Donald C. Mente - Grosse Ile MI
Li-Mei Lu - Canton MI
David D. Peters - Wyandotte MI
Joe C. Wilson - Woodhaven MI
Anthony G. Schaefer - Wyandotte MI

Assignee:

BASF Corporation - Mt. Olive NJ

International Classification:

C08G 1830

US Classification:

106 3825, 528 49, 2521822, 560 25, 516203, 556414

Abstract:

There is disclosed a parting agent comprising the reaction product of an isocyanate compound and an isocyanate-reactive compound of the general structure wherein: R is a hydrophobic group containing alkyl, alkaryl, polyaryl, or siloxane moieties; (ao) is an alkylene oxide or mixture of alkylene oxides such as ethylene oxide, propylene oxide, butylene oxide, and mixtures thereof; n is about 1 to about 25; and Y represents a monofunctional isocyanate-reactive group. There is also disclosed the processes that may be utilized to produce the parting agent.

US Patent:

6464820, Oct 15, 2002

Filed:

Dec 29, 2000

Appl. No.:

09/751145

Inventors:

Donald C. Mente - Grosse Ile MI
Li-Mei Lu - Canton MI
David D. Peters - Wyandotte MI
Joe C. Wilson - Woodhaven MI
Anthony G. Schaefer - Wyandotte MI

Assignee:

BASF Corporation - Mt. Olive NJ

International Classification:

B27N 302

US Classification:

156296, 156 622, 1563314, 1563317, 264109

Abstract:

A method for preparing compression molded or pressed lignocellulosic articles is disclosed. The method involves forming a binder resin by combining a polyisocyanate component with a parting agent and preferably a synergist. The parting agent is the reaction product of an isocyanate compound and an isocyanate-reactive compound of the general structure Râ(ao) âY where: R is a hydrophobic group containing alkyl, alkaryl, polyaryl, or siloxane moieties; (ao) is an alkylene oxide or mixture of alkylene oxides; n is from 1 to 25; and Y represents a monofunctional isocyanate-reactive group. A resinated lignocellulosic mixture is formed by combining the binder resin with lignocellulosic particles. Then a compression molded or pressed lignocellulosic article is formed by compressing the resinated lignocellulosic mixture at an elevated temperature and under pressure. It is particularly preferred that the binder resin further include a synergist of either a C N-alkylpyrrolidone, gamma-butyrolactone, or a mixtures of them.

US Patent:

6638459, Oct 28, 2003

Filed:

Aug 20, 2002

Appl. No.:

10/224237

Inventors:

Donald C. Mente - Grosse Ile MI
Li-Mei Lu - Canton MI
David D. Peters - Wyandotte MI
Joe C. Wilson - Woodhaven MI
Anthony G. Schaefer - Wyandotte MI

Assignee:

BASF Corporation - Mt. Olive NJ

International Classification:

B29B 1112

US Classification:

264125, 264109, 264123, 264241

Abstract:

A method for preparing compression molded or pressed lignocellulosic articles is disclosed. The method involves forming a binder resin by combining a polyisocyanate component with a parting agent and preferably a synergist. The parting agent is the reaction product of an isocyanate compound and an isocyanate-reactive compound of the general structure Râ(ao) âY where: R is a hydrophobic group containing alkyl, alkaryl, polyaryl, or siloxane moieties; (ao) is an alkylene oxide or mixture of alkylene oxides; n is from 1 to 25; and Y represents a monofunctional isocyanate-reactive group. A resinated lignocellulosic mixture is formed by combining the binder resin with lignocellulosic particles. Then a compression molded or pressed lignocellulosic article is formed by compressing the resinated lignocellulosic mixture at an elevated temperature and under pressure. It is particularly preferred that the binder resin further include a synergist of either a C N-alkylpyrrolidone, gamma-butyrolactone, or a mixtures of them.

US Patent:

7872082, Jan 18, 2011

Filed:

Jul 19, 2006

Appl. No.:

11/490268

Inventors:

Antoni Kozlowski - Huntsville AL, US
John Handley - Duluth MN, US
Anthony G. Schaefer - Huntsville AL, US
Brian Bray - Huntsville AL, US
Ryan Odom - Huntsville AL, US
Tony L. Sander - Madison AL, US

Assignee:

Nektar Therapeutics - San Carlos CA

International Classification:

C08F 22/40

US Classification:

526262, 526215, 526208, 526333, 525 55

Abstract:

Methods for preparing polymeric reagents bearing a maleimide are provided. Also provided are compositions comprising the polymeric reagents, and conjugates prepared by polymeric reagents obtained by the described methods.

US Patent:

8058385, Nov 15, 2011

Filed:

Nov 4, 2010

Appl. No.:

12/940009

Inventors:

Antoni Kozlowski - Huntsville AL, US
John Handley - Duluth MN, US
Anthony G. Schaefer - Huntsville AL, US
Brian Bray - Huntsville AL, US
Ryan Odom - Huntsville AL, US
Tony L. Sander - Madison AL, US

Assignee:

Nektar Therapeutics - San Francisco CA

International Classification:

C08G 69/08

US Classification:

528310, 525205, 526262, 526215, 526208, 526333

Abstract:

Methods for preparing conjugates using polymeric reagents bearing a maleimide are provided. Also provided are compositions comprising the conjugates.

US Patent:

8227558, Jul 24, 2012

Filed:

Oct 4, 2011

Appl. No.:

13/252761

Inventors:

Antoni Kozlowski - Huntsville AL, US
John R. Handley - Duluth MN, US
Anthony G. Schaefer - Huntsville AL, US
Brian Bray - Huntsville AL, US
Ryan Odom - Huntsville AL, US
Tony L. Sander - Madison AL, US

Assignee:

Nektar Therapeutics - San Francisco CA

International Classification:

C08F 22/40
C08F 26/06
C08F 122/40
C08F 126/06
C08F 222/40
C08F 226/06
C08F 2/00
C08F 8/00
C08G 63/48
C08G 63/91

US Classification:

526262, 526215, 526208, 526333, 525 55

Abstract:

Methods for preparing polymeric reagents bearing a maleimide are provided. Also provided are related compositions.

US Patent:

20120271000, Oct 25, 2012

Filed:

Jun 21, 2012

Appl. No.:

13/529224

Inventors:

Antoni Kozlowski - Huntsville AL, US
John Handley - Duluth MN, US
Anthony G. Schaefer - Huntsville AL, US
Brian Bray - Huntsville AL, US
Ryan Odom - Huntsville AL, US
Tony L. Sander - Madison AL, US

Assignee:

Nektar Therapeutics - San Francisco CA

International Classification:

C08L 71/00

US Classification:

525 541, 525419

Abstract:

Methods for preparing conjugates using polymeric reagents bearing a maleimide are provided. Also provided are compositions comprising the conjugates.