Aqueous cross-linking compositions and methods

US9790374B2 · kind B2 · utility

Assignee

• Columbia Insurance Company · US

Inventors

• Yue Chen · Raleigh, US
• Yong Yang · Kingwood, US
• Robert Sheerin · North Caldwell, US
• Jean Fredrick Mauck · Hackettstown, US
• Navin Tilara · Roseland, US
• Johanna L. Garcia de Visicaro · Lake Hopatcong, US

Key dates

• Filing date: Jun 3, 2011
• Grant date: Oct 17, 2017
• Expiry date: Jun 3, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2201/56
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Water-borne cross-linking polymeric compositions and related embodiments, such as methods of making and using the compositions, as well as products formed with said compositions are described. For example, the water-borne composition may comprise polymers incorporating cross-linking functionality such as, but not limited to, carbonyl or epoxy functionality, and a blocked cross-linking agent, for example, a hydrazone. The cross-linking functionality does not react with the blocked cross-linking agent; however, the blocked cross-linking agent is capable of reacting with the alternative form cross-linking agent such as, but not limited to, a hydrazide, to yield a cross-linked polymer. The alternative form cross-linking agent may be formed in an equilibrium reaction including the blocked cross-linking agent.