Soo Yeung Cho

US Patent:

7612152, Nov 3, 2009

Filed:

May 6, 2005

Appl. No.:

11/123859

Inventors:

Paul V. Braun - Savoy IL, US
Soo Hyoun Cho - Champaign IL, US
Scott R. White - Champaign IL, US
Nancy R. Sottos - Champaign IL, US
H. Magnus Andersson - Champaign IL, US

Assignee:

The Board of Trustees of the University of Illinois - Urbana IL

International Classification:

C08L 63/00

US Classification:

525476, 523211

Abstract:

A composite material includes a polymer matrix, a polymerizer, and a plurality of capsules containing a corresponding activator for the polymerizer. The composite material can also include an adhesion promoter, and the polymerizer can be phase separated from the polymer matrix. The composite material can be made by dispersing the polymerizer and capsules into the polymer matrix. These composite materials can exhibit improved environmental stability, and can be used with a wider variety of activators.

US Patent:

7723405, May 25, 2010

Filed:

Jan 5, 2007

Appl. No.:

11/620276

Inventors:

Paul V. Braun - Savoy IL, US
Soo Hyoun Cho - Champaign IL, US
Scott R. White - Champaign IL, US

Assignee:

The Board of Trustees of the University of Illinois - Urbana IL

International Classification:

C08K 9/06

US Classification:

523212, 528 38, 528 71

Abstract:

A self-healing coating includes a polymer matrix, a polymerizer, and a set of capsules containing a corresponding activator for the polymerizer. The polymerizer may be present in another set of capsules, or the polymerizer may be phase separated from the polymer matrix. The coating may be prepared by depositing a coating composition on a substrate and solidifying the coating composition, where the coating composition includes the polymerizer, the activator capsules and a matrix precursor. A combination of polymerizer capsules and activator capsules may be part of a kit, which may be used to provide self-healing properties to a coating. The polymerizer and the activator may be wet-curable, and coatings containing the polymerizer and activator may be able to self-heal when in contact with water.