The invention relates to a liquid bi-component composition comprising a silylated polymer having alkoxysilane functions, an epoxy resin, an amine catalyst for the epoxy and a catalyst for silanol condensation, and an adhesion promoter or a coupling agent. After crosslinking, the liquid composition according to the invention makes it possible to obtain a waterproofing membrane suitable for pedestrian and/or vehicle traffic.
Reactions of Isopropyl Methylphosphonofluoridate with Substituted Phenols. II
作者:Joseph. Epstein、Harry O. Michel、David H. Rosenblatt、Robert E. Plapinger、Ralph A. Stephani、Edward. Cook
DOI:10.1021/ja01076a043
日期:1964.11
LIQUID COMPOSITION FOR A WATERPROOFING MEMBRANE
申请人:BOSTIK SA
公开号:US20190002627A1
公开(公告)日:2019-01-03
The invention relates to a liquid bi-component composition comprising a silylated polymer having alkoxysilane functions, an epoxy resin, an amine catalyst for the epoxy and a catalyst for silanol condensation, and an adhesion promoter or a coupling agent. After crosslinking, the liquid composition according to the invention makes it possible to obtain a waterproofing membrane suitable for pedestrian and/or vehicle traffic.
Convenient Synthesis of 2-Amino-4<i>H</i>-chromenes from Photochemically Generated<i>o</i>-Quinone Methides and Malononitrile
2‐Amino‐4H‐chromenes were synthesized in moderate to good yields by the reaction of o‐quinone methides photochemically generatedfrom o‐(dimethylaminomethyl)phenols with malononitrile. This method was applicable to the synthesis of fluorinated chromenes that were difficult to obtain by other methods. In addition, o‐(hydroxymethyl)phenols could be used for the reaction in the presence of tertiary amine bases.