Patent Number: 6,332,465

Title: Face masks having an elastic and polyolefin thermoplastic band attached thereto by heat and pressure

Abstract: A filtration face mask 10 that comprises a mask body 20 and a band 30. The mask body is adapted to cover the nose and mouth of a wearer and that comprises polyolefin containing fibers. The band 30 comprises an elastic constituent and a fibrous thermoplastic constituent. The fibrous thermoplastic constituent has a melting point of about C. or less and is a polyolefin or a substituted polyolefin. The band is attached to the mask body by heat and pressure at securement points 23.

Inventors: Xue; Jianxian (Maplewood, MN), Casar; Daniel C. (New Brighton, MN)

Assignee: 3M Innovative Properties Company

International Classification: A41D 13/11 (20060101); A41D 13/05 (20060101); A62B 18/08 (20060101); A62B 23/02 (20060101); A62B 18/00 (20060101); A62B 23/00 (20060101); B29C 65/00 (20060101); A62B 018/08 ()

Expiration Date: 12/25/2018