Ray L Hillard

US Patent:

40535185, Oct 11, 1977

Filed:

Jul 14, 1976

Appl. No.:

5/705314

Inventors:

Norma Ann Weston - Annandale NJ
Ray Leonard Hillard - Annandale NJ

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

C07F 950
C07F 954

US Classification:

2606065P

Abstract:

In a solution that is free of bases and free of oxygen and which contains at least four molar proportions of the reactant tris(hydroxymethyl)phosphine for every three molar proportions of an aralkyl halide reactant, the following reaction produces tris(aralkyl)phosphine product: 3(Ar-CH. sub. 2 X) + 4P(CH. sub. 2 OH). sub. 3. fwdarw. (Ar-CH. sub. 2). sub. 3 P + 3P. sup. + (CH. sub. 2 OH). sub. 4 X. sup. - after separation of the phosphine product, the phosphonium salt by-products can be converted to tris(hydroxymethyl)phosphine by the addition of a base.

US Patent:

RE303852, Aug 26, 1980

Filed:

Jul 16, 1979

Appl. No.:

6/057786

Inventors:

Ray L. Hillard - Annandale NJ
William B. Hardy - Bound Brook NJ

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

C07D21162
C07D40102
C08K 534

US Classification:

260 458N

Abstract:

Compounds of the formula: ##STR1## wherein R is hydrogen or alkyl (C. sub. 1 -C. sub. 8), R' is hydrogen, hydroxyl or lower alkoxy (C. sub. 1 -C. sub. 8); R" is alkyl (C. sub. 1 -C. sub. 20), alkylene (C. sub. 2 -C. sub. 12), cycloalkyl, wherein the alicyclic ring contains 5- or 6-carbon atoms, cycloalkylene, wherein the alicyclic ring may contain lower alkyl substituents, alkenyl (C. sub. 3 -C. sub. 20), arylene or aralkylene; n is an integer from 1 to 4, are useful for stabilizing polyolefin polymer against photo and thermal degradation.

US Patent:

41287266, Dec 5, 1978

Filed:

Dec 22, 1977

Appl. No.:

5/863378

Inventors:

Vincent G. Grosso - New City NY
Ray L. Hillard - Annandale NJ

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

C07C 6976

US Classification:

560 72

Abstract:

Aryl esters of 3,5-di-t-butyl-4-hydroxybenzoic acid are produced by reacting 3,5-di-t-butyl-4-hydroxybenzoic acid with a hydroxyphenol in the presence of di-n-butylether as a non-reactive, organic solvent.

US Patent:

40641023, Dec 20, 1977

Filed:

Mar 18, 1976

Appl. No.:

5/668156

Inventors:

Ray Leonard Hillard - Annandale NJ
William Baptist Hardy - Bound Brook NJ

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

C07D21162
C07D40102
C08K 534

US Classification:

260 458N

Abstract:

Compounds of the formula: ##STR1## wherein R is hydrogen or alkyl (C. sub. 1 -C. sub. 8), R' is hydrogen, hydroxyl or lower alkoxy (C. sub. 1 -C. sub. 8); R" is alkyl (C. sub. 1 -C. sub. 20), alkylene (C. sub. 2 -C. sub. 12), cycloalkyl, wherein the alicyclic ring contains 5- or 6-carbon atoms, cycloalkylene, wherein the alicyclic ring may contain lower alkyl substituents, alkenyl (C. sub. 3 -C. sub. 20), arylene or aralkylene; n is an integer from 1 to 4, are useful for stabilizing polyolefin polymer against photo and thermal degradation.

US Patent:

43223591, Mar 30, 1982

Filed:

Mar 19, 1981

Appl. No.:

6/245556

Inventors:

Ray L. Hillard - Annandale NJ
Irwin D. Greene - Somerset NJ

Assignee:

American Cyanamid Company - Stamford CT

International Classification:

C07D49304

US Classification:

2603478

Abstract:

A water-miscible, non-hydroxylic, organic solvent is employed in the production of 2,5-dimethyl-1,4: 3,6-dianhydrosorbitol by methylation of 1,4: 3,6-dianhydrosorbitol with dimethyl sulfate.