Provided is a method for producing an episulfide compound, the method including a step of thiating epoxy groups of (B) an epoxy compound by a reaction with (C) a thiating agent in the presence of (A) a polyhydric hydroxyl compound having two or more hydroxyl groups.
Among other things, the present disclosure provides compositions and methods for an elastomeric cross-linked polyester material. Such an elastomeric cross-linked polyester material, in some embodiments, comprises a plurality of polymeric units of the general formula (-A-B—)p, wherein p is an integer greater than 1; and a plurality of urethane cross-links each of which covalently links two polymeric units to one another, which two linked polymeric unit each had at least one free hydroxyl or amino group prior to formation of the crosslink.
除其他外,本公开提供了一种弹性交联聚酯材料的组合物和方法。在某些实施例中,这种弹性交联聚酯材料包括通式(-A-B-)p 的多个聚合物单元,其中 p 是大于 1 的整数;以及多个聚氨酯交联剂,其中每个交联剂将两个聚合物单元彼此共价连接,这两个连接的聚合物单元在形成交联剂之前各自至少有一个游离羟基或氨基。
Shaped biomedical articles formed from polysiloxane polymers
申请人:BAUSCH & LOMB INCORPORATED
公开号:EP0035080B1
公开(公告)日:1984-08-15
Process for Preparing Episulfide Compounds
申请人:Nakamura Akitake
公开号:US20140107350A1
公开(公告)日:2014-04-17
Provided is a method for producing an episulfide compound, the method including a step of thiating epoxy groups of (B) an epoxy compound by a reaction with (C) a thiating agent in the presence of (A) a polyhydric hydroxyl compound having two or more hydroxyl groups.