专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US11440989B2 Application of Mannich base in flame-retardant polyurethane material 有权
公开(公告)号：US11440989B2
公开(公告)日：2022-09-13
申请号：US16685953
申请日：2019-11-15
申请人： Jiahua Science & Technology Development (Shanghai) Ltd. , Jiahua Chemicals Inc.
发明人： Yongjian Guan , Ping Li , Zhijun Li , Feng Wang , Yubo Li
IPC分类号： C08G18/48 , C09K21/14 , C08G18/38 , C08G18/70 , C07C213/02 , C07C215/28 , C08G18/50 , C08G65/26 , C07C215/50 , C08J9/04
摘要： Application of a Mannich base in a flame-retardant polyurethane material is provided. The Mannich base has a structure represented by a formula (I). In the Mannich base, flame-retardant groups, i.e., halogens are introduced at the second, fourth and sixth positions of a phenyl group, and flame-retardant elements, i.e., halogens and nitrogen are introduced into synthesized polyether polyol, giving the synthesized polyether polyol good flame retardance. The amount of active hydrogen in the Mannich base is small so that occurrence of side reactions during the synthesis of the polyether polyol is reduced, and the viscosity of the flame-retardant polyether polyol is lowered. Due to autocatalytic performance of tertiary amido in the flame-retardant polyether polyol, use of a catalyst can be reduced and even avoided during the synthesis. A preparation method of the Mannich base is also provided.

2. 发明申请

US20220162379A1 PROCESS AND SYSTEM FOR PRODUCING LOW-ODOR POLYETHER POLYOL 有权
公开(公告)号：US20220162379A1
公开(公告)日：2022-05-26
申请号：US17616952
申请日：2020-03-23
申请人： Jiahua Science & Technology Development (Shanghai) Ltd.
发明人： Zhijun LI , Feng Wang , Yubo Li
IPC分类号： C08G65/26 , C08G65/30
摘要： The present disclosure relates to the technical field of the production of polyether polyols, and provided is a process for producing a low-odor polyether polyol, the process comprising the following steps: an initial polymerization reaction step, involving: adding an initiator and an alkaline catalyst into a reaction container, and then inputting an epoxy olefin into the reaction container for a polymerization reaction to obtain a mixed material; a circulation distribution polymerization step, involving: taking the mixed material, outputting same, splitting same and then spraying same into the reaction container at a high speed, circulating the above operations while inputting the epoxy olefin and maintaining a rotation speed of 90-105 r/min for stirring the mixed material that has been sprayed into the reaction container, continuing to proceed with the polymerization reaction, and curing same to obtain a crude polyether polyol; and a refining step, involving: taking the crude polyether polyol for a neutralization or dilution treatment to obtain a mixed solution of the crude polyether polyol, then aggregating a mixed solution stream by means of a hydrophilic medium, settling and separating to obtain the low-odor polyether polyol. The production process of the present disclosure has the advantages of a short processing time, a high yield and a low VOC content.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式