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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 12768080 B1

PDFFull Text
Date of Patent:
Oct. 20, 2026

Filed:

Feb. 18, 2025

Preparation method of photochromic polypropylene fiber

Applicant:

Taiwan Textile Research Institute, New Taipei City, TW;

Inventors:

Jo-Cheng Chiang, New Taipei City, TW;

Sheng-Shan Chang, New Taipei City, TW;

Yun-Yu Chen, New Taipei City, TW;

Assignee:

TAIWAN TEXTILE RESEARCH INSTITUTE, New Taipei City, TW;

Attorney:

McClure, Qualey & Rodack, LLP

Primary Examiner:

Lynda Salvatore

Int. Cl.
CPC ...
D01F 1/10 (2006.01); C08J 3/22 (2006.01); C08K 5/00 (2006.01); C08K 5/3435 (2006.01); C08K 5/3492 (2006.01); C08K 5/524 (2006.01); C08K 5/527 (2006.01); D01D 5/08 (2006.01); D01F 6/06 (2006.01); G02B 5/22 (2006.01); G02B 5/23 (2006.01);
U.S. Cl.
CPC ...
D01F 1/106 (2013.01); C08J 3/22 (2013.01); C08K 5/005 (2013.01); C08K 5/3435 (2013.01); C08K 5/3492 (2013.01); C08K 5/524 (2013.01); C08K 5/527 (2013.01); D01D 5/08 (2013.01); D01F 6/06 (2013.01); G02B 5/223 (2013.01); G02B 5/23 (2013.01); C08J 2323/12 (2013.01);
Abstract

A preparation method of the photochromic polypropylene fiber includes steps below. A photochromic masterbatch is prepared. An ultraviolet light absorber masterbatch is prepared. The ultraviolet light absorber includes A light stabilizer masterbatch is prepared. The light stabilizer includes and n is 10 to 14. A masterbatch mixing step is performed. A melt-spinning step is performed. The photochromic polypropylene mixture is melt-spun to obtain the photochromic polypropylene fiber.

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Chiang, Jo-Cheng. (2026). Preparation method of photochromic polypropylene fiber (U.S. Patent No. 12768080). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12768080

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