Adhesive composition for absorbent articles

US11021636B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Robert Haines Turner · Cincinnati, US
• Torsten Lindner · Schwalbach am Taunus, DE
• Matthias Morand · Bad Soden, DE
• Benjamin John Kutay · Cincinnati, US
• Holger Beruda · Schwalbach, DE
• Ekaterina Anatolyevna Ponomarenko · Schwalbach am Taunus, DE
• William L. Bunnelle · Ham Lake, US
• Jon Fagerness · Coon Rapids, US
• Nick Fowler · Odessa, US
• Bill Turner · Odessa, US
• Andres Sustic · Odessa, US
• Enrico Buenacosa · Odessa, US
• Steve Oetting · Odessa, US
• Steve McHaney · Odessa, US
• J. J. DeCair · Odessa, US

Key dates

• Filing date: Apr 18, 2019
• Grant date: Jun 1, 2021
• Expiry date: Apr 18, 2039

Classification

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

Abstract

Described herein is an adhesive composition including (a) from about 70 wt. % to about 90 wt. % of one or more copolymers, and (b) from about 10 wt. % to about 30 wt. % of one or more heterophase copolymers. The one or more copolymers include (i) from about 30 mole % to about 70 mole % of monomer units selected from the group consisting of ethylene, 1-butene, and mixtures thereof; and (ii) from about 30 mole % to about 70 mole % of propene monomer units. The adhesive composition is free of polyisobutylene. The adhesive composition has a viscosity of from about 2,000 mPa·s to about 11,500 mPa·s at 150° C. The one or more heterophase copolymers includes a first heterophase copolymer and a second heterophase copolymer.