Wet-Laid process to produce a bound nonwoven article

US9273417B2 · kind B2 · utility

Assignee

• Eastman Chemical Company · US

Inventors

• Rakesh Gupta · Kingsport, US
• Melvin Glenn Mitchell · Penrose, US
• Daniel William Klosiewicz · Newark, US
• Mark Dwight Clark · Kingsport, US
• Chris Delbert Anderson · Perrysburg, US
• Marvin Lynn Mitchell · Parker, US
• Paula Hines Mitchell · Parker, US
• Amber Layne Wolfe · Landrum, US

Key dates

• Filing date: Oct 14, 2011
• Grant date: Mar 1, 2016
• Expiry date: May 1, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/608
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A versatile binder comprising at least one or more sulfopolyesters is provided. These sulfopolyester binders can enhance the dry tensile strength, wet tensile strength, tear force, and burst strength of the nonwoven articles in which they are incorporated. Additionally, the water permeability of these binders can be modified as desired by blending different types of sulfopolyesters to produce the binder. Therefore, the binder can be used in a wide array of nonwoven end products and can be modified accordingly based on the desired properties sought in the nonwoven products.