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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 11891508 B1

PDFFull Text
Date of Patent:
Feb. 06, 2024

Filed:

Mar. 02, 2023

Breathable and waterproof membrane

Applicant:

Nan Ya Plastics Corporation, Taipei, TW;

Inventors:

Te-Chao Liao, Taipei, TW;

Ching-Yao Yuan, Taipei, TW;

Wei-Tang Liao, Taipei, TW;

Assignee:

NAN YA PLASTICS CORPORATION, Taipei, TW;

Attorney:

Li & Cai Intellectual Property Office

Primary Examiner:

Kelechi C Egwim

Int. Cl.
CPC ...
C08K 5/05 (2006.01); C08K 5/105 (2006.01); C08K 5/12 (2006.01); C08K 5/132 (2006.01); C08K 5/1515 (2006.01); C08G 63/672 (2006.01); C08L 67/02 (2006.01); C08K 5/00 (2006.01); C08G 63/91 (2006.01);
U.S. Cl.
CPC ...
C08L 67/025 (2013.01); C08G 63/672 (2013.01); C08G 63/916 (2013.01); C08K 5/005 (2013.01); C08K 5/105 (2013.01); C08K 5/12 (2013.01); C08K 5/132 (2013.01); C08K 5/1515 (2013.01); C08L 2205/025 (2013.01); C08L 2205/08 (2013.01); C08L 2207/04 (2013.01); C08L 2207/20 (2013.01);
Abstract

A breathable and waterproof membrane is made from a modified thermoplastic polyester elastomer. The breathable and waterproof membrane has a moisture permeability of greater than or equal to 25000 g/m·day. The modified thermoplastic polyester elastomer is formed from a thermoplastic polyester elastomer, a regenerated polyethylene terephthalate, and a compatibilizer. Based on a total weight of the modified thermoplastic polyester elastomer being 100 phr, a content of the regenerated polyethylene terephthalate is greater than 0 phr and up to 50 phr. Based on a total weight of the thermoplastic polyester elastomer being 100 wt %, the thermoplastic polyester elastomer includes 25 wt % to 75 wt % of hard segments and 25 wt % to 75 wt % of soft segments.

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