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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11745436 B1

PDFFull Text
Date of Patent:
Sep. 05, 2023

Filed:

Aug. 08, 2016

Liquid-impermeable stitching method for seam of vapor-permeable virus-barrier fabric

Applicant:

Foshan King Wonder Hi-tech Co., Ltd., Guangdong, CN;

Inventors:

Yuwei Lin, Guangdong, CN;

Yaogen Wu, Guangdong, CN;

Assignee:

FOSHAN KING WONDER HI-TECH CO., LTD., Guangdong, CN;

Attorney:

Hamre, Schumann, Mueller & Larson, P.C.

Primary Examiner:

John L Goff, Ii

Int. Cl.
CPC ...
B29C 65/00 (2006.01); B32B 7/12 (2006.01); B32B 27/12 (2006.01); B32B 37/04 (2006.01); B32B 37/06 (2006.01); B32B 37/10 (2006.01); B32B 37/12 (2006.01); B32B 37/15 (2006.01); B32B 33/00 (2006.01); B32B 27/02 (2006.01);
U.S. Cl.
CPC ...
B29C 66/1122 (2013.01); B32B 7/12 (2013.01); B32B 27/02 (2013.01); B32B 27/12 (2013.01); B32B 33/00 (2013.01); B32B 37/04 (2013.01); B32B 37/06 (2013.01); B32B 37/10 (2013.01); B32B 37/12 (2013.01); B32B 37/15 (2013.01);
Abstract

A fluid impervious stitching method for a seam of a vapor-permeable virus-barrier laminate. The laminate comprises: at least one thermoplastic resin fiber layer; at least one vapor-permeable virus-barrier thermoplastic elastomer film layer; and a bonding layer located between the two layers and formed of an adhesive capable of being fused with the two layers. In the stitching method, overlapping or stacking is performed to form a seam, and heat sealing is performed on the laminate at the seam. The temperature of heat sealing is higher than the melting point of a material layer having the highest melting point in the laminate, but lower than the temperature at which perforation or decomposition occurs in any material layer in the laminate. The heat-stitched seam has excellent windproof, vapor-permeable, virus barrier and liquid-barrier performance, has a smooth appearance without wrinkles, and feels soft. Also provided is a protective textile product prepared by means of the stitching method.

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Quick Actions:

Lin, Yuwei. (2023). Liquid-impermeable stitching method for seam of vapor-permeable virus-barrier fabric (U.S. Patent No. 11745436). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11745436

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