US 12,264,414 B2
Photochromic polypropylene fiber and preparation method thereof
Jo-Cheng Chiang, New Taipei (TW); Sheng-Shan Chang, New Taipei (TW); and Yun-Yu Chen, New Taipei (TW)
Assigned to TAIWAN TEXTILE RESEARCH INSTITUTE, New Taipei (TW)
Filed by TAIWAN TEXTILE RESEARCH INSTITUTE, New Taipei (TW)
Filed on Jan. 11, 2021, as Appl. No. 17/145,434.
Claims priority of application No. 109113202 (TW), filed on Apr. 20, 2020.
Prior Publication US 2021/0324543 A1, Oct. 21, 2021
Int. Cl. 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)
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)] 4 Claims
 
1. A photochromic polypropylene fiber, comprising:
98 to 99 parts by weight of polypropylene;
0.2 to 0.8 parts by weight of a photochromic agent;
1 to 1 parts by weight of an ultraviolet absorber, and the ultraviolet absorber comprising

OG Complex Work Unit Chemistry
and
0.1 to 1 parts by weight of a light stabilizer, and the light stabilizer comprising

OG Complex Work Unit Chemistry
wherein n is 10-14.