Robert J Barsotti

US Patent:

6376596, Apr 23, 2002

Filed:

Nov 12, 1998

Appl. No.:

09/180509

Inventors:

Robert John Barsotti - Franklinville NJ
Isidor Hazan - Clementon NJ
Bruce Lyle Neff - Wilmington DE

Assignee:

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

International Classification:

C09D20106

US Classification:

524500, 524538, 524539

Abstract:

A curable coating composition comprising functionalized oligomer components i and ii which cross-link at cure to form a three-dimensional network having chains of substantially uniform, controllable molecular weight between cross-links; oligomers i and ii having weight average molecular weights not exceeding about 3,000, a polydispersity for (i) not exceeding about 1. 5, and functionalities that react with one another to cross-link i and ii at cure to yield coatings with an excellent balance of hardness and mar resistance.

US Patent:

6426148, Jul 30, 2002

Filed:

Jan 14, 2000

Appl. No.:

09/462968

Inventors:

Robert John Barsotti - Franklinville NJ
Lee R. Harper - Media PA
John David Nordstrom - Huntington Woods MI

Assignee:

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

International Classification:

C09D17504

US Classification:

4284231, 525 65, 525111, 525123, 525131, 525438, 525440, 525528, 528 73, 427386

Abstract:

A curable coating composition comprising, in an organic solvent, a binder of (i) a non-isocyanate oligomer or blend of oligomers containing at least two functional groups with at least one being an epoxy group, the remaining being epoxy or hydroxyl; (ii) optionally a polyester, oligoester, or acrylic polymer with at least two hydroxyl groups; and (iii) an oligomeric crosslinker or blend of crosslinkers which contain at least two isocyanate groups.

US Patent:

6428898, Aug 6, 2002

Filed:

Jun 30, 2000

Appl. No.:

09/582834

Inventors:

Robert J. Barsotti - Franklinville NJ
Isidor Hazan - Southfield MI
John David Nordstrom - Huntington Woods MI

Assignee:

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

International Classification:

B32B 904

US Classification:

428447, 528 12, 528 17, 528 21, 528 23, 528 26, 528 29, 528 40, 556463, 556465, 427387, 10628712, 10628713

Abstract:

The present invention is directed to low VOC curable coating compositions suitable for use in various mar and etch resistant coatings, such as in automotive coatings. The binder of the composition includes silicon/hydroxyl and cross-linking components. The silicon/hydroxyl component includes one or more reactive oligomers having linear or branched cycloaliphatic moiety and at least two functional groups with at least one being a silane or silicate group, the remaining being a hydroxyl group. Applicants have unexpectedly discovered that by including silane or silicate functionalities in these reactive oligomers, the solids level of the composition can be significantly increased at reduced composition viscosities. As a result, such high solids low VOC compositions can be readily applied by conventional application means, such as by spraying.

US Patent:

6551712, Apr 22, 2003

Filed:

Mar 28, 2002

Appl. No.:

10/109945

Inventors:

Robert John Barsotti - Franklinville NJ
Isidor Hazan - Southfield MI
Bruce Lyle Neff - Wilmington DE

Assignee:

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

International Classification:

B32B 2730

US Classification:

428413, 4284228, 4284231, 428480, 428500

Abstract:

A curable coating composition comprising functionalized oligomer components i and ii which cross-link at cure to form a three-dimensional network having chains of substantially uniform, controllable molecular weight between cross-links; oligomers i and ii having weight average molecular weights not exceeding about 3,000, a polydispersity for (i) not exceeding about 1. 5, and functionalities that react with one another to cross-link i and ii at cure to yield coatings with an excellent balance of hardness and mar resistance.

US Patent:

6551713, Apr 22, 2003

Filed:

Apr 10, 2002

Appl. No.:

10/120127

Inventors:

Robert John Barsotti - Franklinville NJ
Isidor Hazan - Southfield NJ
Bruce Lyle Neff - Wilmington DE

Assignee:

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

International Classification:

B05D 300

US Classification:

428413, 427386, 427387, 4284231, 428447, 524500, 524504, 524506, 524507, 524513

Abstract:

A curable coating composition comprising functionalized oligomer components i and ii which cross-link at cure to form a three-dimensional network having chains of substantially uniform, controllable molecular weight between cross-links; oligomers i and ii having weight average molecular weights not exceeding about 3,000, a polydispersity for (i) not exceeding about 1. 5, and functionalities that react with one another to cross-link i and ii at cure to yield coatings with an excellent balance of hardness and mar resistance.

US Patent:

6558745, May 6, 2003

Filed:

Mar 28, 2002

Appl. No.:

10/109770

Inventors:

Robert John Barsotti - Franklinville NJ
Isidor Hazan - Southfield MI
Bruce Lyle Neff - Wilmington DE

Assignee:

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

International Classification:

B05D 302

US Classification:

4273855, 427386, 427387, 4273935

Abstract:

A curable coating composition comprising functionalized oligomer components i and ii which cross-link at cure to form a three-dimensional network having chains of substantially uniform, controllable molecular weight between cross-links; oligomers i and ii having weight average molecular weights not exceeding about 3,000, a polydispersity for (i) not exceeding about 1. 5, and functionalities that react with one another to cross-link i and ii at cure to yield coatings with an excellent balance of hardness and mar resistance.

US Patent:

6562893, May 13, 2003

Filed:

Mar 28, 2002

Appl. No.:

10/112511

Inventors:

Robert John Barsotti - Franklinville NJ
Isidor Hazan - Clementon NJ
Bruce Lyle Neff - Wilmington DE

Assignee:

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

International Classification:

C09D20106

US Classification:

524500, 524506, 524507, 524558, 524559

Abstract:

A curable coating composition comprising functionalized oligomer components i and ii which cross-link at cure to form a three-dimensional network having chains of substantially uniform, controllable molecular weight between cross-links; oligomers i and ii having weight average molecular weights not exceeding about 3,000, a polydispersity for (i) not exceeding about 1. 5, and functionalities that react with one another to cross-link i and ii at cure to yield coatings with an excellent balance of hardness and mar resistance.

US Patent:

6632880, Oct 14, 2003

Filed:

Jul 9, 2001

Appl. No.:

09/901394

Inventors:

Robert J. Barsotti - Franklinville NJ
Laura Ann Lewin - Greenville DE
Christopher Scopazzi - Wilmington DE

Assignee:

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

International Classification:

C08L 5100

US Classification:

525 64, 525 69, 525 70, 525 77, 525 85

Abstract:

A coating composition containing about 40-90% by weight of film forming binder and 10-60% by weight of an organic liquid carrier; wherein the binder contains about (a) 10-70% by weight, based on the weight of the binder, of a dispersed gelled acrylic polymer having (i) a core of gelled polymerized ethylenically unsaturated monomers which is not soluble in the organic liquid carrier and having chemically grafted thereto (ii) substantially linear stabilizer polymeric components that are soluble in the organic liquid carrier and comprise polymerized ethylenically unsaturated monomers and have a weight average molecular weight of about 500-20,000 determined by GPC (gel permeation chromatography) using polystyrene as the standard; wherein the core, the stabilizer polymeric component, or both contain at least 3% by weight of polymerized ethylenically unsaturated monomers having isocyanate groups attached thereto that are capable of reacting with component (b); (b) 30-90% by weight, based on the weight of the binder, of an oligomer or polymer or both having functional groups capable of reacting with the isocyanate groups of component (a); and (c) 0-60% by weight, based on the weight of the binder, of an organic polyisocyanate crosslinking agent.