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US 12,679,923 B2Granted
Xylylene diisocynate composition, preparation method therefor and use thereof
AssigneeWanhua Chemical Group Co., Ltd.
InventorsFulin Zhu, Yonghua Shang, Jianfeng Li, Weijie Liu, Peng Wang, Wenbin Li, Pengfei Wang, Qian Wu, Wei Liu, Yuan Li
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Abstract
A xylylene diisocynate composition, a preparation method therefor and the use thereof. The xylylene diisocynate composition includes xylylene diisocynate and 0.2-500 ppm of a compound represented by formula (1). A resin prepared from the provided xylylene diisocynate composition has an excellent discoloration resistance and can effectively inhibit yellowing and/or white turbidity thereof.
Claims15
A xylylene diisocyanate composition, comprising xylylene diisocyanate and 0.2-500 ppm of a compound as shown in formula (1):
- wherein the xylylene diisocyanate composition further comprises a bromine-containing compound;
- and the content of the bromine-containing compound is 0.5-50 ppm based on a mass of elemental bromine.
Dependencies are inferred from the claim text.