Addition-fragmentation agents

US10370322B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Guy D. Joly · Shoreview, US
• Larry R. Krepski · White Bear Lake, US
• Ann R. Fornof · Austin, US
• Serkan Yurt · Windom, US
• Babu N. Gaddam · Woodbury, US
• Ahmed S. Abuelyaman · Woodbury, US

Key dates

• Filing date: Jan 20, 2017
• Grant date: Aug 6, 2019
• Expiry date: Jun 18, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J2433/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Addition-fragmentation agents of the formula are disclosed: wherein R1, R2 and R3 are each independently Z-Q-, a (hetero)alkyl group or a (hetero)aryl group with the proviso that at least one of R1, R2 and R3 is Zm-Q-, Q is a linking group have a valence of m+1; Z is an ethylenically unsaturated polymerizable group, m is 1 to 6; each X1 is independently —O— or —NR4—, where R4 is H or C1-C4 alkyl, and n is 0 or 1.