Additive for heat-sensitive recording material, the recording material, and method for production of the recording material
申请人:SHOWA DENKO KABUSHIKI KAISHA
公开号:EP0373251A1
公开(公告)日:1990-06-20
A hydantoin compound of the formula:
(wherein R stands for an alkyl group of 8 to 20 carbon atoms) increases the sensitivity of a color developing reaction of a heat-sensitive recording material and enhances the high-speed recording property of the recording material without sacrifice of the whiteness thereof. The heat-sensitive recording material containing the hydantoin compound is novel to the art.
式中的一种海因化合物:
(其中 R 代表 8 至 20 个碳原子的烷基)可提高热敏记录材料显色反应的灵敏度,并增强记录材料的高速记录性能,同时不影响其白度。含有海因化合物的热敏记录材料是本领域的新技术。
US4939269A
申请人:——
公开号:US4939269A
公开(公告)日:1990-07-03
Notes - Improved Procedure for Preparing 3-,5-, or 3,5-Substituted Hydantoins