influence of catalysts, the one-step process requires a more active catalyst than the prepolymer process, and a composite catalytic system of organoti…
1 there are various accidents and problems encountered in actual foam production, and each accident is caused by many factors. in the analysis of acci…
petrochemical catalysts an important type of product in the catalyst industry, it is used in chemical processing processes in the production of petroc…
industrial catalysts catalysts occupy an extremely important position in the modern chemical industry. more than 90% of chemical production processes …
project introduction catalysis is the study of the effects of energy barriers and rates of chemical reactions on other substances. usually in the hete…
1. hydroxyl value: the amount of hydroxyl (-oh) contained in 1 gram of polymer polyol is equivalent to the number of milligrams of koh in mgkoh/g. 2. …
1． what is spray rigid foam polyurethane? spray rigid foam polyurethane is made of isocyanate (mdi, commonly known as black material) and polyol (comm…
background polyurethane rigid foam used in the construction industry is an important branch of the polyurethane industry. it is characterized by its m…
a federal jury in ohio ordered the chemical giant to pay $5.1 million to the victim after dupont deliberately discharged polluted wastewater into a ri…
polyurethane is a polymer containing a urethane group (-nhcoo) in the polymer backbone. the full name is polyurethane, or polyurethane (pu) for short….
this week, the domestic cyclohexanone market trend is stable but strong. last weekend (july 1), sinopec’s listing rose by 150 yuan/ton to 4,950 yuan/t…
chemical’s second-quarter profit and revenue exceeded market expectations – uv absorber manufacturer
chemical (july 28) announced before the market opened on thursday that despite continued pricing and currency headwinds, its second-quarter revenue fe…