US 12,365,770 B2
Silica aerogel-containing polyester masterbatch, method for making the same and silica aerogel-containing polyester fiber made from the same
Yu-Shun Chen, Tainan (TW); Hsiao-Chi Tsai, Tainan (TW); Chun-Ping Cheng, Tainan (TW); Chien-Ming Lin, Tainan (TW); and Hsu-Yeh Huang, Tainan (TW)
Assigned to KCI MASTER INDUSTRIES CORP., Tainin (TW)
Filed by KCI MASTER INDUSTRIES CORP., Tainan (TW)
Filed on Dec. 16, 2022, as Appl. No. 18/082,662.
Claims priority of application No. 111126655 (TW), filed on Jul. 15, 2022.
Prior Publication US 2024/0018313 A1, Jan. 18, 2024
Int. Cl. C08J 3/22 (2006.01); C08K 7/26 (2006.01); D01F 8/14 (2006.01)
CPC C08J 3/22 (2013.01) [C08K 7/26 (2013.01); D01F 8/14 (2013.01); C08J 2367/03 (2013.01); C08K 2201/005 (2013.01); D10B 2331/04 (2013.01)] 6 Claims
 
1. A method for preparing a silica aerogel-containing polyester masterbatch, comprising the steps of:
(a) subjecting a mixture of a silica aerogel powder, a dispersing agent, and a liquid carrier to a ball-milling treatment, so as to form a silica aerogel-containing composite dispersion liquid,
wherein the dispersing agent is selected from the group consisting of a paraffin oil, a silane compound, a wax including C28-C32 straight chain monoacids, and combinations thereof, and is present in an amount ranging from 1 part by weight to 50 parts by weight based on 100 parts by weight of the silica aerogel powder;
(b) subjecting the silica aerogel-containing composite dispersion liquid to a drying treatment, so as to form a silica aerogel-containing composite powder; and
(c) subjecting the silica aerogel-containing composite powder and a polyethylene terephthalate resin to a granulation process, so as to obtain the silica aerogel-containing polyester masterbatch,
wherein the silica aerogel-containing composite powder is present in an amount ranging from 5 parts by weight to 45 parts by weight based on 100 parts by weight of the polyethylene terephthalate resin.