Paul T Caruso

US Patent:

44232411, Dec 27, 1983

Filed:

Apr 9, 1982

Appl. No.:

6/367017

Inventors:

Paul J. Caruso - Philadelphia PA

Assignee:

Union Carbide Corporation - Danbury CT

International Classification:

C07C10100

US Classification:

560 35

Abstract:

Novel 2,6-dihalogenated benzylidene aminooxyacetic acid compounds and derivatives thereof, have been found to have exceptional herbicidal activity, particularly in regard to nutsedge control.

US Patent:

42823447, Aug 4, 1981

Filed:

Nov 21, 1979

Appl. No.:

6/096563

Inventors:

Paul P. Caruso - Wilmington DE

Assignee:

E. I. Du Pont de Nemours and Company - Wilmington DE

International Classification:

C08G 1832
C08G 1865

US Classification:

528 51

Abstract:

To a dispersion of a complex of 3 moles of 4,4'-methylenedianiline with 1 mole of a specified inorganic salt in an inert liquid, which still contains some free methylenedianiline, there is added, with agitation, at least 0. 5 equivalent of an organic isocyanate per equivalent of free methylenedianiline. Then, there is added, while continuing agitation, at least 0. 5 weight % of lecithin. The resulting dispersion is a good curing agent for isocyanato-terminated polyurethane prepolymers. Compositions containing both the prepolymer and the curing agent of this invention have good shelf stability at room temperature and cure to polyurethane products having good physical properties and hydrolytic stability.