Water-soluble film having improved dissolution and stress properties, and packets made therefrom

US8276756B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Frank William Denome · Cincinnati, US
• Steven G. Friedrich · Crown Point, US
• Regine Labeque · Neder-Over-Heembeek, BE
• David M. Lee · Los Alamos, US
• Jichun Shi · Monroe, US
• Andrew P. Verrall · Crown Point, US
• Roxane Rosmaninho · Auderghem - Oudergem, BE

Key dates

• Filing date: Jan 31, 2011
• Grant date: Oct 2, 2012
• Expiry date: May 14, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/1345
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Disclosed is a pouch having at least one sealed compartment containing a first composition. At least one wall of the at least one sealed compartment is made from a water-soluble film having any suitable thickness. The water-soluble film comprises PVOH polymer such that when the film has a thickness of about 76 microns the film is characterized by a Dissolution Index of about 620 to about 920, or of about 665 to about 920, or about 710 to about 920; and a Stress Index of about 145 to about 626, or about 155 to about 480, or about 165 to about 325.