DAVID H. PRIEST, M.D.
Osteopathic Medicine at Westgate Center Dr, Winston Salem, NC

4011223, Mar 8, 1977

Feb 23, 1976

5/660000

David Charles Priest - Charlotte NC
Michael Ray Sandner - Charleston WV
David John Trecker - South Charleston WV

Union Carbide Corporation - New York NY

C07D29512

260268R

Provided as catalysts for the formation of cellular urethane polymers ranging from flexible to rigid foams, are beta-amino carbonyl compounds wherein carbonyl is present as an amido or carboxylic acid ester group and the beta-amino group is present as dialkylamino or an N-morpholino or N,N'-piperazino heterocyclic nucleus. Effective in the catalysis of the water-isocyanate reaction, these beta-amino amides and beta-amino esters are used with particular advantage in the manufacture of water-blown flexible foams, both molded and free-rise, including high-resilience and flame-retarded foam. The beta-amino carbonyl catalysts allow for the formation of foam products essentially free of the odor associated with amines such as N-ethylmorpholine. In view of this highly desirable characteristic and their other beneficial properties, the catalysts of the invention are advantageously employed as direct replacements for N-ethylmorpholine in high-resilience and other foam formulations.

3933693, Jan 20, 1976

Jun 24, 1974

5/482151

David C. Priest - Charlotte NC
John E. Brandien - late of Mooresville NC

Reeves Brothers Inc. - New York NY

C08G 1832, B62D 2514

260 25AJ

Flame retardant flexible polyurethane foams having a porosity in the range between 0. 5 and 10 cubic feet per minute and meeting all of the requirements of Motor Vehicle Safety Standard Docket 302 may be produced from tolylene diisocyanate (which is a mixture of the 2,4- and 2,6-isomers) and polyether polyols without downgrading the flexibility or the porosity of the foam by (a) using in the polymerization reaction a tolylene diisocyanate in which the 2,4- to 2,6-isomer ratio is such that the tolylene diisocyanate contains not more than about 76 percent by weight of the 2,4-isomer, and (b) incorporating into the reaction medium prior to polymerization from about 1 to about 8 percent by weight of dibromoneopentyl glycol in a form such that the dibromoneopentyl glycol can be polymerized with the other reactants in the foam matrix, the weight of the dibromoneopentyl glycol being based on the weight of the polyether polyol used in the polymerization reaction. Best results have been obtained when the dibromoneopentyl glycol is incorporated in the reaction medium, either in the form of a dispersion or a solution of dibromoneopentyl glycol in the polyether polyol, using a tolylene diisocyanate in which the 2,4- to 2,6-isomer ratio is such that the tolylene diisocyanate contains 72. 5. +-. 2 percent by weight of the 2,4-isomer and 27. 5. +-.

4012445, Mar 15, 1977

Feb 23, 1976

5/659997

David Charles Priest - Charlotte NC
Michael Ray Sandner - Charleston WV
David John Trecker - S. Charleston WV

Union Carbide Corporation - New York NY

C07C10350

260561A

Provided as catalysts for the formation of cellular urethane polymers ranging from flexible to rigid foams, are beta-amino carbonyl compounds wherein carbonyl is present as an amido or carboxylic acid ester group and the beta-amino group is present as dialkylamino or an N-morpholino or N,N'-piperazino heterocyclic nucleus. Effective in the catalysis of the water-isocyanate reaction, these beta-amino amides and beta-amino esters are used with particular advantage in the manufacture of water-blown flexible foams, both molded and free-rise, including high-resilience and flame-retarded foam. The beta-amino carbonyl catalysts allow for the formation of foam products essentially free of the odor associated with amines such as N-ethylmorpholine. In view of this highly desirable characteristic and their other beneficial properties, the catalysts of the invention are advantageously employed as direct replacements for N-ethylmorpholine in high-resilience and other foam formulations.

3954749, May 4, 1976

Apr 23, 1974

5/463247

David Charles Priest - Charlotte NC
Michael Ray Sandner - Charleston WV
David John Trecker - South Charleston WV

Union Carbide Corporation - New York NY

C07D29500

2602472A

Provided as catalysts for the formation of cellular urethane polymers ranging from flexible to rigid foams, are beta-amino carbonyl compounds wherein carbonyl is present as an amido or carboxylic acid ester group and the beta-amino group is present as dialkylamino or an N-morpholino or N,N'-piperazino heterocyclic nucleus. Effective in the catalysis of the water-isocyanate reaction, these beta-amino amides and beta-amino esters are used with particular advantage in the manufacture of water-blown flexible foams, both molded and free-rise, including high-resilience and flame-retarded foam. The beta-amino carbonyl catalysts allow for the formation of foam products essentially free of the odor associated with amines such as N-ethylmorpholine. In view of this highly desirable characteristic and their other beneficial properties, the catalysts of the invention are advantageously employed as direct replacements for N-ethylmorpholine in high-resilience and other foam formulations.

4208314, Jun 17, 1980

Nov 20, 1973

5/417487

David C. Priest - Charlotte NC
Richard A. Langdale-Smith - Vanderhoof, CA

Union Carbide Corporation - New York NY

C08L 3506

260 332R

This invention relates to a novel process for producing polymer/polyols characterized by the use of specific amounts of particular monomer combinations and by maintaining a low monomer concentration throughout the reaction mixture during the process. The monomer combinations are acrylonitrile or methacrylonitrile and styrene or alpha-methyl styrene. The process produces novel polymer/polyols characterized by their convertibility to low density, water-blown polyurethane foams having reduced scorch and by the relatively small size of the polymer particles.

4282331, Aug 4, 1981

Feb 19, 1980

6/122483

David C. Priest - Charlotte NC

Union Carbide Corporation - New York NY

C08G 1814

521137

This invention relates to a novel process for producing polymer/polyols characterized by the use of specific amounts of particular monomer combinations and by maintaining a low monomer concentration throughout the reaction mixture during the process. The monomer combinations are acrylonitrile or methacrylonitrile and styrene or alpha-methyl styrene. The process produces novel polymer/polyols characterized by their convertibility to low density, water-blown polyurethane foams having reduced scorch and by the relatively small size of the polymer particles.