Ray V Scott

45784469, Mar 25, 1986

Mar 25, 1985

6/715719

David W. House - Arlington Heights IL
Ray V. Scott - Addison IL

UOP Inc. - Des Plaines IL

C08G 1832
C08G 1816

528 64

Polyurethanes may be conveniently made by curing isocyanate-terminated urethane prepolymers with a N,N'-dialkylmethylenedianiline. The diamine N,N'-di(2-butyl)-4,4'-methylenedianiline is a particularly useful diamine. The resulting polyurethanes often are thermoplastic rather than thermosetting, making them especially useful as coatings, adhesives, and sealants. Such secondary aromatic diamines have acceptable pot lives and afford products with a variety of properties.

51661853, Nov 24, 1992

Jun 6, 1990

7/533981

David W. House - Arlington Heights IL
Ray V. Scott - Addison IL
Mark J. Gattuso - Palatine IL

UOP - Des Plaines IL

C08G 1032

521159

N,N'-di-sec-alkenyl-or-di-sec-alkyl-substituted methylene diphenyl diamines are effective curing agents for making polyurethane foams from MDI-based polyisocyanates. The diamines are especially advantageous since foams of lower density having lower hardness can be obtained without utilizing chlorofluorocarbous (CFC's) and without sacrificing tensile strength, tear strength, SAG or compression set values.

47145129, Dec 22, 1987

Jan 23, 1986

6/821722

David W. House - Arlington Heights IL
Ray V. Scott - Addison IL

UOP Inc. - Des Plaines IL

C09J 510

1563066

The polyurethanes resulting from curing isocyanate-terminated urethane prepolymers with a N,N'-dialkylmethylenedianiline are broadly useful as coatings on the surface of objects made of metal, wood, glass, or plastic. Such coatings may be made based on either a 1-pack systemor 2-pack system. The diamine N,N'-di(2-butyl)4,4'-methylenedianiline is a particularly useful diamine.

52235513, Jun 29, 1993

Dec 26, 1991

7/813559

Mark J. Gattuso - Palantine IL
David W. House - Arlington Heights IL
Ray V. Scott - Schaumburg IL

UOP - Des Plaines IL

C08G 1832

521163

Rigid urea-modified polyisocyanurate foams with improved dimensional stability and flame retardancy have densities of 1-12 p. c. f. , a limiting oxygen index greater than 22 and dimensional changes at 100% R. H. and 70. degree. C. of less than 2% in any linear dimension and a method of making same. The method comprises reacting an organic polyisocyanate, a blowing agent and an N,N'-dialkyl aromatic diamine in the presence of a trimerization catalyst and, if water is used as the blowing agent, a blowing catalyst, wherein the N,N'-dialkyl aromatic diamine and an amine produced by water, if used, constitute the sole sources of active hydrogen.

48473472, Jul 11, 1989

Jan 28, 1988

7/149292

William M. Baumann - Downers Grove IL
David W. House - Arlington Heights IL
Ray V. Scott - Addison IL

UOP - Des Plaines IL

C08G 1870
C08G 1832
C08G 1860

528 68

Alkylated polyamines which may be viewed as low molecular weight polymers of x-amino-y-methylenephenyl are effective curing agents in combination with other polyamines and polyols in reaction injection molding for a diverse class of polyisocyantates. Alkylation may range from 5 up to 100 percent to afford polyamines with a broad spectrum of cure times, as well as to give elastomers with an interesting and useful diversity of properties. Such polyamines may be used as a constituent in a blend of polyamines as the isocyanate-reactive component, in which case the elastomer may be viewed as predominantly a polyurea, or as a constituent in a blend with polyols, in which case the elastomer may be viewed as an elastomer with both urethane and urea segments.

46632018, May 5, 1987

Apr 25, 1986

6/855991

David W. House - Arlington Heights IL
Ray V. Scott - Addison IL

UOP Inc. - Des Plaines IL

B05D 302

4273882

The polyurea resulting from curing polyfunctional isocyanates having at least three groups with a N,N'-dialkylmethylenedianiline are broadly useful as coatings on the surface of objects made of metal, wood, glass, or plastic. Such coatings may be made based on either a 1-pack system or 2-pack system. The diamine N,N'-di(2-butyl)4,4'-methylenedianiline is a particularly useful diamine. Biurets are an especially desirable class of polyisocyanates for the polyureas of this invention.

53128869, May 17, 1994

Sep 20, 1993

8/122946

David W. House - Arlington Heights IL
Ray V. Scott - Schaumburg IL
Mark J. Gattuso - Palatine IL

UOP - Des Plaines IL

C08G 1810

528 64

Bis(N-alkylaminocyclohexyl)methanes are excellent chain extenders in the formation of polyurethane and polyurea polymers, both elastomers and coatings, from both monomeric polyisocyanates and isocyanate-terminated prepolymers. Our chain extenders may be used alone or in combination with other polyamines and with polyols. A broad spectrum of polymeric material can be formed with a range of diverse properties.

48016748, Jan 31, 1989

Mar 20, 1987

7/028511

Ray V. Scott - Addison IL
David W. House - Arlington Heights IL

UOP Inc. - Des Plaines IL

C08G 1832
C08G 1848
C08G 1885
C08G 1886

528 68

N,N'-disubstituted diamines are effective curing agents in combination with other polyamines and polyols in reaction injection molding for a diverse class of polyisocyanates. The diamines provide a broad spectrum of cure times, as well as giving elastomers an interesting and useful diversity of properties. Such diamines may be used as a constituent in a blend of polyamines as the isocyanate-reactive component, in which case the elastomer may be viewed as predominantly a polyurea, or as a constituent in a blend with polyols, in which case the elastomer may be viewed as an elastomer with both urethane and urea segments.