US 11,834,779 B2
Functional-agent-containing fiber and method for manufacturing same
Shinji Irifune, Gunma (JP); Tomoya Kanai, Gunma (JP); Masaki Tanaka, Tokyo (JP); Minoru Sugiyama, Osaka (JP); Hidenobu Morishima, Osaka (JP); and Kazuhiro Sato, Osaka (JP)
Assigned to SHIN-ETSU CHEMICAL CO., LTD., Tokyo (JP); and KURASHIKI BOSEKI KABUSHIKI KAISHA, Okayama (JP)
Appl. No. 16/630,316
Filed by SHIN-ETSU CHEMICAL CO., LTD., Tokyo (JP); and KURASHIKI BOSEKI KABUSHIKI KAISHA, Kurashiki (JP)
PCT Filed Mar. 26, 2018, PCT No. PCT/JP2018/012169
§ 371(c)(1), (2) Date Jan. 10, 2020,
PCT Pub. No. WO2019/012744, PCT Pub. Date Jan. 17, 2019.
Claims priority of application No. 2017-138255 (JP), filed on Jul. 14, 2017.
Prior Publication US 2020/0165772 A1, May 28, 2020
Int. Cl. D06M 15/643 (2006.01); D06M 13/152 (2006.01); D06M 13/184 (2006.01); D06M 14/18 (2006.01); D06M 15/03 (2006.01); D06M 15/15 (2006.01); D06M 101/04 (2006.01); D06M 101/12 (2006.01)
CPC D06M 15/643 (2013.01) [D06M 13/152 (2013.01); D06M 13/184 (2013.01); D06M 14/18 (2013.01); D06M 15/03 (2013.01); D06M 15/15 (2013.01); D06M 2101/04 (2013.01); D06M 2101/12 (2013.01)] 15 Claims
 
1. Functional agent-containing fibers comprising a functional agent,
wherein the functional agent is supported by silicone fixed to the fibers by structural entanglement or hydrophobic interaction,
the silicone comprises an acrylic-modified organopolysiloxane having two or more acrylic groups per molecule,
the acrylic-modified organopolysiloxane having two or more acrylic groups per molecule contains a unit represented by the following general formula (1) in the molecule:

OG Complex Work Unit Chemistry
wherein R1 represents a same or different unsubstituted monovalent hydrocarbon group having 1 to 18 carbon atoms, R2 represents a hydrogen atom, m is an integer of 1 to 8, and a and b are positive numbers that satisfy a+b≤3,
the acrylic-modified organopolysiloxane has a viscosity of 50 to 5000 mPa·s at 25° C., and
a rate of decrease of the functional agent after the functional agent-containing fibers are washed 10 times is less than 40%.