Nowadays, the utilization of raw materials derived from renewable feedstock is in the spotlight of the chemical industry, as vegetable oils are one of the most important platform chemicals due to their universal availability, inherent biodegradability and low price. Taking into account that polyurethanes are one of the most important industrial products exhibiting versatile properties suitable ...

New polyurethane compositions with polyols based on propylene glycol and glycerin have been studied. The technological parameters of the adhesive composition were determined: start time, gelation life (tack-free) time. for maximum elasticity line has developed.

Abstract Nowadays, the topics of closed-loop and eco-design are raised very often, especially in chemical industry. To combine development with these trends, Purinova Sp. z o.o. has focused on pursuing use post-production condensate from polyester polyols production. this end, purification distillation processes have been adapted, both at laboratory production scale, to receive treated decrease...

Optimization of epoxidation by using response surface methodology (RSM) based on three-level three-factorial central composite design (CCD) was used. Response percentage relative oxirane content (%RCO) studied to determine the optimum reaction condition for production polyols. The predicted value model (85 %) excellent in accordance experimental (81 %). All parameters (temperature, molar ratio ...

A strategy to construct supported heterogeneous catalyst featured with immobilization-enhanced proton tolerance is reported by Shunjie Liu, Xianhong Wang et al. in their Research Article (e202305186). The catalysts are used synthesize colorless ultra-low molecular weight CO2-polyols.