A polymeric article, such as a medical catheter, and method for making the same
申请人:NAMIC CARIBE, INC.
公开号:EP0514913A2
公开(公告)日:1992-11-25
A polymeric article and method for making a polymeric article, such as a catheter, are disclosed wherein the article is contacted with a swelling agent, such as a solvent, and a plasticizer to make the polymeric material softer and/or more pliable or flexible. The contacting may be carried our sequentially or simultaneously, using a solution comprising a plasticizer and a solvent.
An object of the present invention is to provide a curable composition made mainly of an organic polymer having a reactive silicon group, exhibits a good curability without using any organic tin compound substantially, and gives a cured product having a sufficient strength; and to provide a catalyst composition. The object is solved by a curable composition, comprising a polymer (A) having a silicon-containing group which can be crosslinked by forming a siloxane bond, and a fluoride salt compound (B).
An object of the present invention is to provide a curable composition made mainly of an organic polymer having a reactive silicon group, exhibits a good curability without using any organic tin compound substantially, and gives a cured product having a sufficient strength; and to provide a catalyst composition. The object is solved by a curable composition, comprising a polymer (A) having a silicon-containing group which can be crosslinked by forming a siloxane bond, and a fluoride salt compound (B).
A Highly Efficient Synthesis of Sulphonamide Derivatives in the Presence of N-Methyl-2-pyrrolidone
作者:Yong Tan、Su Juan Wang、Yi Ting Wang、Bao Xiang Gao、Xin Wu Ba
DOI:10.1080/00397910903470517
日期:2010.11.16
The sulphonamide derivatives are synthesized by two component condensation of alkyl bromide and sodium arylsulphonamide using N-methyl-2-pyrrolidone (NMP) as a reaction medium. This method results in high yields without the formation of unwanted side products, and expanding substrate scopes.