Polyester polyols for elastic polyurethanes (PU) are low molecular weight (MW) polymers (1000-4000 daltons) characterised by the presence of ester groups and terminal hydroxyl groups. The general ...

Aminic polyols are low molecular weight adducts of propylene oxide (PO) [and/or ethylene oxide; (EO)] made from aliphatic or aromatic polyamines such as: ethylenediamine (EDA), diethylene triamine ...

The main raw materials used for the production of polyurethanes are polyols, isocyanates and propylene oxide. The first of these is the subject of the latest Rapra Handbook: Chemistry and Technology ...

Map of the distribution of the aliphatic organics. Map of the AOs on Ceres, using as a proxy the 3.4-μm band depth (scale bar) derived by the Dawn VIR data, superimposed to a context map of the ...

We’ve probably all been told that to stay cool and dry, we should wear cotton – and yet sports shops are full of synthetic ‘technical fabrics’ designed to ‘wick away sweat’. So which ...

US scientists estimate it to be 5.6 million tonnes since we first started wearing those polyester and nylon garments in a big way in the 1950s. Just over half this mass - 2.9 million tonnes - has ...

NORTH CHARLESTON, S.C., September 30, 2024--(BUSINESS WIRE)--Ingevity Corporation (NYSE:NGVT) will launch Capa® HS, the next generation of polycaprolactone polyols for enhanced hydrolytic ...