Connected block branched polypropylene glycols

Details Connected block branched polypropylene glycols Connected block branched polypropylene glycols

C - Chemistry, Metallurgy

08

K

400/105, 402/151

C08K 5/05 (2006.01) C08G 18/63 (2006.01) C08G 18/64 (2006.01)

Patent

CA 1225093

- 79 - ABSTRACT OF THE DISCLOSURE Connected branch polyols comprising a core segment having a defined molecular weight, one core branch unit directly connected to each end of the core segment, at least one additional branch unit at each end connected directly or indirectly to each core branch unit, and linear polymer segments connected to the branch units are utilized in preparing a wide spectrum of polymer/ polyols formed by polymerizing one or more monomers in a base polyol and a connected branched polyol said polymer/ polyol being characterized by superior dispersion stability and viscosity to solids content relationship, the polymer/polyols in turn being employed to prepare polyurethanes having superior performance in flame retardancy tests.

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