Vegetable oil based polyols and polyurethanes made therefrom

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...

Reexamination Certificate

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C528S044000, C554S001000

Reexamination Certificate

active

07960444

ABSTRACT:
Polyols useful in the manufacture of polyurethanes are disclosed. The polyols are prepared by reacting a vegetable oil based (hydroxymethyl containing) monomer with a polyol, polyamine or aminoalcohol under vacuum.

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patent: 2162083 (1996-05-01), None
patent: 0106491 (1984-04-01), None
Petrović et al. (Sturcture and Properteis of Polyurethane Based on Halogenated and Nonhalogenated Soy-Polyols, J. Polym. Sci., Part A: Polym. Chem, 2000, 38, 4062-4069).
T.H. Khoe, F.H. Otey and E.N. Frankei, “Rigid Urethane Foams from Hydroxymethylated Linseed Oil and Polyol Esters”, Northern Regional Research Laboratory, Peoria, Illinois 61604 USA, (1972).
Journal of Polymers and the Environment (2002), 10(1/2), 49-52. “Polyols and Polyurethanes from Hydroformylation of Soybean Oil.” Guo, Andrew; Demydov, Dima; Zhang, Wei; Petrovic, Zoran S. Kansas Polymer Research Center, Business and Technology Institute, Pittsburg, KS, USA. Publisher: Kluwer Academic/Plenum Publishers.

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