专利检索 ap:("WANHUA CHEMICAL GROUP CO., LTD." OR "WANHUA CHEMICAL (NINGBO) CO., LTD.") AND inv:"Peimeng Shi" 第 1 页

1.

发明授权
Preparation method for polyurethane optical resin and applications thereof 有权

公开(公告)号：US12024582B2

公开(公告)日：2024-07-02

申请号：US17608393

申请日：2020-07-20

申请人： WANHUA CHEMICAL GROUP CO., LTD. , WANHUA CHEMICAL (NINGBO) CO., LTD.

发明人： Jianfeng Li , Yonghua Shang , Qian Wu , Fulin Zhu , Peng Wang , Hao Chen , Peimeng Shi , Weiqi Hua , Yuan Li

IPC分类号： C07D251/00 , C08G18/24 , C08G18/38 , C08G18/75 , C08G18/76 , C08K5/521 , G02B1/04

CPC分类号： C08G18/3876 , C08G18/242 , C08G18/758 , C08G18/7642 , C08K5/521 , G02B1/04

摘要： Preparation method for a polyurethane optical resin and applications thereof. The preparation method for the polyurethane optical resin comprises: a raw material composition comprising isocyanate and a polythiol compound undergoes a polymerization to produce the polyurethane optical resin. The turbidity value of the isocyanate used in the raw material composition is controlled at ≤2 NTU. The polyurethane optical resin produced is applicable in manufacturing optical products.