Crosslinkable coating compositions formulated with dormant carbamate initiator

US10624833B2 · kind B2 · utility

Assignee

• ELEMENTIS SPECIALTIES, INC. · US

Inventors

• Wouter Ijdo · Yardley, US
• Yanhui CHEN · Princeton, US
• Prashant Deshmukh · Plainsboro, US
• Rajni Gupta · Princeton, US
• James A. Heck · Lawrence, US
• Wayne Hoyte · Sayreville, US
• Maurice Gray · Elmont, US

Key dates

• Filing date: Jun 13, 2017
• Grant date: Apr 21, 2020
• Expiry date: Jun 13, 2037

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/95
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A crosslinkable coating composition comprising: ingredient A that has at least two protons that can be activated to form a Michael carbanion donor; ingredient B that functions as a Michael acceptor having at least two ethylenically unsaturated functionalities each activated by an electron-withdrawing group; and a dormant carbamate initiator of Formula (1) wherein R1 and R2 can be independently selected from hydrogen, a linear or branched substituted or unsubstituted alkyl group having 1 to 22 carbon atoms; 1 to 8 carbon atoms; and An+ is a cationic species or polymer and n is an integer equal or greater than 1 with the proviso that An+ is not an acidic hydrogen; and optionally further comprising ammonium carbamate (H2NR1R2+−OC═ONR1R2). The crosslinkable coating composition can be used for a variety of coating applications including nail coating compositions.