	US 12,241,199 B2
	Treatment agent for electronic-grade low-dielectric fiberglass cloth, and preparation method thereof
Wei Li, Zoucheng (CN); Qiang Fang, Zoucheng (CN); Huaqing Xiao, Zoucheng (CN); Yingying Zhang, Zoucheng (CN); Dongfeng Liu, Zoucheng (CN); Siqi Niu, Zoucheng (CN); Lin Wei, Zoucheng (CN); and Xiaochen Wang, Zoucheng (CN)
Assigned to TAISHAN FIBERGLASS ZOUCHENG CO., LTD., Zoucheng (CN)
Appl. No. 18/561,726
Filed by TAISHAN FIBERGLASS ZOUCHENG CO., LTD., Zoucheng (CN)
PCT Filed May 7, 2022, PCT No. PCT/CN2022/091363 § 371(c)(1), (2) Date Nov. 16, 2023, PCT Pub. No. WO2022/247607, PCT Pub. Date Dec. 1, 2022.
Claims priority of application No. 202111440929.2 (CN), filed on Nov. 30, 2021.
Prior Publication US 2024/0240388 A1, Jul. 18, 2024
Int. Cl. D06M 15/513 (2006.01); D06M 13/144 (2006.01); D06M 13/513 (2006.01); D06M 15/227 (2006.01)

CPC D06M 13/5135 (2013.01) [D06M 13/144 (2013.01); D06M 15/227 (2013.01)]

17 Claims

1. A treatment agent for an electronic-grade low-dielectric fiberglass cloth, comprising the following raw materials in weight percentages: 0.6% to 1.2% of a coupling agent A, 0.3% to 0.8% of a coupling agent B, 0.01% to 1.5% of a coupling agent additive, 0.1% to 0.5% of an alcohol, 0.1% to 0.5% of an acid, and water for the balance, wherein a content ratio of the coupling agent A to the coupling agent B is (1.2-2.3): 1;

the coupling agent A is a vinyl-containing coupling agent; the coupling agent B is a vinylbenzyl-containing coupling agent; and the coupling agent additive is a salt of a maleic anhydride (MA)-grafted copolymer.