Jun J Lin

US Patent:

6379807, Apr 30, 2002

Filed:

Nov 7, 2000

Appl. No.:

09/707573

Inventors:

John D Nordstrom - Huntington Woods MI
Jun Lin - Troy MI

Assignee:

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

International Classification:

B32B 904

US Classification:

428447, 4284231, 524837, 524853, 524858, 525123, 525124, 525127, 528 27, 528 28

Abstract:

The present invention is directed to a coating composition particularly useful as a clear coating applied over a pigmented base coating, wherein the clear coating has improved resistance to marring and to acid etching when exposed to natural weathering conditions. The clear coating is particularly useful as an automotive OEM clear coating or as a refinish clear coating. The coating has two components. Component A of the coating composition includes a melamine and an acrylosilane polymer of a polymerized monomers mixture, which includes an alkyl methacrylate, an alkyl acrylate, cycloaliphatic alkyl methacrylate, cycloaliphatic alkyl acrylate, styrene or any mixture of these monomers; hydroxy alkyl methacrylate, hydroxy alkyl acrylate or any mixtures of these monomers; and a mono-ethylenically unsaturated silane monomer. Component B of the composition includes an organic polyisocyanate as a crosslinking agent.

US Patent:

6635314, Oct 21, 2003

Filed:

Aug 13, 2001

Appl. No.:

09/913567

Inventors:

Isao Nagata - Troy MI
Jun Lin - Madison Heights MI

Assignee:

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

International Classification:

C09D16128

US Classification:

4273855, 4273883, 525509, 525520, 528 73

Abstract:

The present invention provides for a clear coating composition most suitable for use as a top clear coat in multi-layered OEM or refinish automotive coatings. The coating composition includes isocyanate and melamine components. The isocyanate component includes an aliphatic polyisocyanate. The composition may be formulated as a two-pack or one-pack coating composition, wherein the isocyanate functionalities are blocked with a blocker such as a mono-alcohol.

US Patent:

7144631, Dec 5, 2006

Filed:

Nov 7, 2003

Appl. No.:

10/703641

Inventors:

Jun Lin - Troy MI, US
Leatrese Dionne Hopkins - Flint MI, US
David M. Zukowski - Sterling Heights MI, US
Scott W. Loper - Canton MI, US

Assignee:

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

International Classification:

B32B 27/40
B32B 27/38
B32B 27/26
B05D 1/36

US Classification:

4284231, 428414, 428446, 428447, 427301, 427409, 427410

Abstract:

A method for adhering windshield sealants directly over a basecoat/clearcoat finish in which the clearcoat comprises a carbamate polymer or oligomer.

US Patent:

7838078, Nov 23, 2010

Filed:

Aug 30, 2004

Appl. No.:

10/929239

Inventors:

Jun Lin - Troy MI, US

Assignee:

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

International Classification:

B05D 1/36

US Classification:

4274071, 524547

Abstract:

A curable film-forming coating composition, typically a clearcoat, having improved compatibility over waterborne and solventborne basecoats. The composition includes a film-forming binder comprising a carbamate material, a curing agent, typically a monomeric melamine curing agent, and a hydroxy functional silane component. When used as a clearcoat over a standard pigmented basecoat, the resulting coating provides a substantially wrinkle free appearance and excellent adhesion to both waterborne and solventborne basecoats.

US Patent:

7871669, Jan 18, 2011

Filed:

Aug 30, 2004

Appl. No.:

10/929238

Inventors:

Jun Lin - Troy MI, US

Assignee:

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

International Classification:

B05D 5/06
B05D 7/16
B05D 1/32
B05D 1/36
B05D 3/02
C08G 77/00

US Classification:

427258, 427261, 427282

Abstract:

A method for producing a multilayer two-tone finish on a substrate such as an automobile or truck body or parts thereof. The method includes the steps of applying two different primers to a substrate, applying an accent color to a portion of the substrate and baking the applied coatings. The accent area is then masked and a main color is applied to the unmasked portion of the substrate. The mask is then removed from the accent color area, a clearcoat is applied to the applied main and accent colors and the substrate is baked to dry and cure the applied coating compositions. The clearcoat composition carbamate material, a curing agent and a hydroxy functional silane component. The method and the clearcoat composition provides a substantially durable and wrinkle free appearance and excellent adhesion to waterborne and solventborne basecoats, baked or unbaked.

US Patent:

20050074617, Apr 7, 2005

Filed:

Oct 2, 2003

Appl. No.:

10/677513

Inventors:

Jun Lin - Troy MI, US
John Crowther - West Bloomfield MI, US
Donald Paquet - Troy MI, US
David Zukowski - Sterling Heights MI, US

International Classification:

B32B009/04

US Classification:

428447000, 106287120

Abstract:

A film-forming coating composition, typically a topcoat, having improved adhesion. The composition includes a film-forming binder comprising a carbamate material, a curing agent, typically a melamine curing agent, and a hydroxy functional silane component. When used as a clearcoat over a standard pigmented basecoat, the resulting coating provides excellent adhesion to both windshield sealants and additional repair coatings.

US Patent:

20070292623, Dec 20, 2007

Filed:

Jun 14, 2007

Appl. No.:

11/818456

Inventors:

Jun Lin - Troy MI, US

International Classification:

B05D 7/00
C08K 9/00

US Classification:

427407100, 523216000, 524492000

Abstract:

Disclosed herein is a clear coating composition comprising a dispersion of silica nano-particles prepared from silica nano-particles having reactive silane groups of 1-500 nm particle size, and at least 0.001 parts by weight of oligomer having at least two groups reactive with the silica nano-particles, or oligomer in combination with a film forming polymer, a low molecular weight coupling agent, or a combination of a film forming polymer and a low molecular weight coupling agent.

US Patent:

20080021147, Jan 24, 2008

Filed:

Jun 14, 2007

Appl. No.:

11/818461

Inventors:

Jun Lin - Troy MI, US

International Classification:

C08K 3/36

US Classification:

524493000

Abstract:

Disclosed herein is a process for preparing a dispersion of silica nano-particles. The dispersions are prepared from silica nano-particles having reactive silane groups of 1-500 nm particle size, and least 0.001 parts by weight of oligomer having at least two groups reactive with the silica nano-particles, or oligomer in combination with a film forming polymer, a low molecular weight coupling agent, or a combination of a film forming polymer and a low molecular weight coupling agent.