Cooling substrates with hydrophilic containment layer and method of making

US8480852B2 · kind B2 · utility

Assignee

• Kimberly-Clark Worldwide, Inc. · US

Inventors

• Scott W. Wenzel · Neenah, US
• Jeffery Richard Seidling · Neenah, US
• Helen Kathleen Moen · Hortonville, US
• Frederick J. Lang · Neenah, US
• Stephanie Diana Scharenbroch · Neenah, US
• Mark Anthony Barnes · Madison, US
• Judy Marie Casper · Hortonville, US

Key dates

• Filing date: Nov 20, 2009
• Grant date: Jul 9, 2013
• Expiry date: Sep 8, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/24802
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Wiping products, such as facial tissues, contain an interior temperature change composition and an exterior hydrophilic lotion composition that can provide a cooling sensation when contacted with the skin of a user. The temperature change composition, for instance, can contain one or more phase change agents that undergo a phase change at slightly elevated temperatures. The phase change agents, in one embodiment, can have a relatively high heat of fusion. When undergoing a phase change, the phase change agents absorb heat and thereby provide a cooling feeling to the skin of a user. The hydrophilic lotion composition may contain a carrier and a thermo-reversible gelling agent. The hydrophilic lotion composition maintains the temperature change composition within the tissue and helps to prevent skin irritation.