Thermal stabilization and processing behavior of block copolymer compositions by blending, applications thereof, and methods of making same

US7648771B2 · kind B2 · utility

Assignee

• Kimberly-Clark Worldwide, Inc. · US

Inventors

• Bryon Day · Canton, US
• Dennis John DeGroot · Appleton, US
• Michael J. Garvey · Appleton, US
• Gregory K. Hall · Menasha, US
• Peter Kobylivker · Marietta, US
• Braulio Polanco · Roswell, US
• Thomas Harold Roessler · Menasha, US
• Duane Girard Uitenbroek · Little Chute, US
• Peiguang Zhou · Appleton, US

Key dates

• Filing date: Dec 31, 2003
• Grant date: Jan 19, 2010
• Expiry date: Feb 26, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31938
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A blended composition of unsaturated block copolymer with improved thermal stability and processing behavior includes at least one unsaturated block copolymer; and a compatibilizer selected from the group consisting of (1) high melt flow rate homopolymers or copolymers; (2) styrene-ethylenepropylene-styrene (SEPS); (3) ethylene vinyl acetate (EVA); (4) styrene-butadiene-styrene (SBS), or styrene-isoprene-styrene (SIS) block copolymers; (5) single site catalyzed polyolefins, such as metallocene catalyzed and constrained geometry polyolefins; (6) amorphous poly alpha olefin homopolymer and copolymers; and (7) a combination of such.