Robert A Matheson

US Patent:

63294893, Dec 11, 2001

Filed:

Dec 20, 1999

Appl. No.:

9/467158

Inventors:

Basil V. Gregorovich - Wilmington DE
Isidor Hazan - Southfield MI
Robert R. Matheson - West Bloomfield MI
Lech Wilczek - Wilmington DE

Assignee:

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

International Classification:

C08G 7718
C08G 7724

US Classification:

528 29

Abstract:

The invention is directed to a process for making a reactive silane oligomer having low polydispersity, viscosity and volatility. The process utilizes reacting unsymmetrical difunctional silane monomers with water, diol monomers, or a combination thereof to make the reactive silane oligomer. The unsymmetrical difunctional silane monomers are with silane reactive groups having significantly different reactivities. Use of such reactive silane oligomers results in multi-component coating compositions having high miscibility, low VOC, low viscosity and high percentage of solids.

US Patent:

62684566, Jul 31, 2001

Filed:

Dec 3, 1997

Appl. No.:

8/973383

Inventors:

Basil V. Gregorovich - Wilmington DE
Isidor Hazan - Clementon NJ
Robert Rudolph Matheson - Wilmington DE
Lech Wilczek - Wilmington DE

Assignee:

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

International Classification:

C08G 7760

US Classification:

528 35

Abstract:

A sprayable coating composition that contains at least one soluble film-forming silicon-containing compound having, on average, more than one fuctionalized silicon group, a volatile organic carrier, a polymer microparticle component, and a catalyst; a substrate coated with the composition; a process for coating the substrate to provide a protective finish; the finish-protected substrate; certain oligomeric compounds and a process therefor.