Methods for manufacturing block copolymers and articles manufactured therefrom

US9663682B2 · kind B2 · utility

Assignees

• DOW GLOBAL TECHNOLOGIES LLC · US
• Rohm and Haas Electronic Materials LLC · US

Inventors

• Jieqian Zhang · Marlborough, US
• Phillip D. Hustad · Manvel, US
• Peter Trefonas, III · Medway, US
• Mingqi Li · Sammamish, US
• Valeriy V. Ginzburg · Midland, US
• Jeffrey D. Weinhold · Lake Jackson, US

Key dates

• Filing date: Jun 22, 2015
• Grant date: May 30, 2017
• Expiry date: Jun 22, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/035
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Disclosed herein is an article comprising a substrate; upon which is disposed a composition comprising: a first block copolymer that comprises a first block and a second block; where the first block has a higher surface energy than the second block; a second block copolymer that comprises a first block and a second block; where the first block of the first block copolymer is chemically the same as or similar to the first block of the second block copolymer and the second block of the first block copolymer is chemically the same as or similar to the second block of the second block copolymer; where the first and the second block copolymer have a chi parameter greater than 0.04 at a temperature of 200° C.