High molecular weight polymers from waste raw materials
AssigneeRepsol, S.A.
InventorsJosé Román Galdämez Peña, María Dolores Blanco Gonzälez, Sonia Segura Fernández, Laura Marín Perales, Carolina Ruiz Orta, Ana Isabel Real Guerrero, Mónica García Ruiz
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Abstract
A polyether carbonate polyol with a nominal functionality of 3 or more includes an equivalent molecular weight between 20,000 and 500,000 Da, and content of between 0.5 wt % and 35 wt % of CO2 based on the total weight of the polyether carbonate polyol. The polyether carbonate polyol has adhesive and impact modifying properties.
Claims11
A polyether carbonate polyol with a nominal functionality of 3 or more, having an equivalent molecular weight between 20,000 and 75,000 Da, and a content of between 0.5 wt % and 35 wt % of CO2, based on the total weight of the polyether carbonate polyol,
- wherein
- nominal functionality refers to the average number of active hydrogen atoms of the initiator or initiators used in its preparation;
- and
- the equivalent molecular weight is calculated according to the formula
- Equivalent molecular weight=56,100/IOH
- wherein IOH is the hydroxyl number in mg of KOH per grams of sample, as calculated according to ASTM E1899-16.
Dependencies are inferred from the claim text.