shanghai qiguang industry and trade co., ltd. shanghai qiguang industry & trade co., ltd. technical indicators catalyst bdma completely packaged, …
group, one of the world’s largest chemical companies, recently announced that its shanghai campus located in shanghai minhang economic and techn…
[hard foam polyether polyol] functionality f. i originally thought that f ≥ 3 would be the authentic hard foam, but this is not the case. it is comple…
chemical company announced: the maintenance of the 600,000 tons/year mdi integrated device in yantai industrial park has been completed and normal pro…
1. what needs to be calculated in the hard foam composite material is whether the ratio of black and white materials (weight ratio) is reasonable. ano…
it was learned from the guangzhou inspection and quarantine bureau that from january to october this year, a total of 4,113 batches of imported hazard…
kinetics of the reaction between hydroxyl compounds and isocyanates -d(-nco)/dt=k0×(-nco)×(-oh) k1 is the forward reaction rate of isocyanate and hydr…
in the preparation process of polyurethane foam, the main role of the catalyst is to adjust the speed of the foaming reaction and gelation reaction to…
in 2016, the global oil price remained at around us$50, and the price of coating raw materials showed a different trend. analyst wang zhishun deeply a…
comprehensive list of polyurethane catalyst products american gas product number company product number product introduction amine catalyst dabco 33lv…
chemical company (nyse: ) exhibited advanced products at the 2016 zhenjiang international low carbon technology products trade exhibition (referred to…
1. introduction catalyst is a chemical substance that can change the rate of chemical reaction. catalysts used in the polyurethane synthesis process c…