US 12,215,032 B2
Far infrared-emitting composition and far infrared-emitting fiber including the same
Long-Li Lai, Taichung (TW); Yan-Chih Lu, Puli (TW); Han-Hsuan Kuo, Puli (TW); and Cheng-Hua Lee, Puli (TW)
Assigned to National Chi Nan University, Puli (TW); and The Heart of Taiwan Science, Innovation, Culture and Art Co., Ltd., Puli (TW)
Filed by National Chi Nan University, Puli (TW); and The Heart of Taiwan Science, Innovation, Culture and Art Co., Ltd., Puli (TW)
Filed on Oct. 22, 2021, as Appl. No. 17/508,382.
Claims priority of application No. 110114176 (TW), filed on Apr. 20, 2021.
Prior Publication US 2022/0333006 A1, Oct. 20, 2022
Int. Cl. C01B 33/12 (2006.01); C09K 11/02 (2006.01); C09K 11/59 (2006.01)
CPC C01B 33/126 (2013.01) [C09K 11/02 (2013.01); C09K 11/59 (2013.01)] 4 Claims
 
1. A far infrared (FIR)-emitting fiber, comprising a FIR-emitting composition, which includes:
a first polymer component; and
a silicon dioxide composite particle which is prepared by subjecting a tetraalkoxysilane and a compound represented by Formula (A) to hydrolysis and condensation polymerization,
Y—Si(ORa)3  (A),
wherein
each Ra independently represents a C1-4 alkyl group or a C1-4 alkanoyl group;
Y represents X-R1, wherein
R1 represents a C1-5 alkylene group; and
X represents

OG Complex Work Unit Chemistry
wherein each R3 independently represents a non-substituted C2-8 linear alkyl or alkoxyl group, or a non-substituted C3-8 branched alkyl or alkoxyl group;
Z represents a non-substituted phenyl group or a phenyl group substituted by at least one R3; and
each of A and B independently represents —NR4R5, —OR6 or —SR7, in which R4 is a hydrogen atom, a non-substituted C1-22 linear alkyl group or a non-substituted C3-22 branched alkyl group; and each of R5 to R7 independently represents a non-substituted C1-22 linear alkyl group or a non-substituted C3-22 branched alkyl group;
the FIR-emitting fiber further comprising a second polymer component,
wherein based on a total weight of said second polymer component and said FIR-emitting composition, said silicon dioxide composite particle is present in an amount ranging from 0.5 wt % to 50.0 wt %.