C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
403/36, 402/45,
C08G 8/08 (2006.01) C08G 16/02 (2006.01) C08G 18/12 (2006.01) C08G 18/54 (2006.01)
Patent
CA 1123990
Abstract of the Disclosure Liquid prepolymers are prepared by interpolymerizing monomers including a hydroxy aromatic compound, an aldehyde and furfuryl alcohol. The resultant liquid prepolymers have a viscosity of about 100-500,000 centipoises at 25°C and contain about 1.1-6 moles of interpolymerized aldehyde and about 3.1-15 moles of interpolymerized furfuryl alcohol for each mole of interpolymerized hydroxy aromatic compound. The prepolymers are highly reactive and may be polymerized with or without other monomers to produce flame retardant solid or cellular interpolymers. In one variant, flame retardant solid or cellular polymers are produced by interpoly- merizing organic polyisocyanates with the prepolymers. In another variant, solid or cellular interpolymers are produced by polymerizing the prepolymers without monomers such as polyisocyanate in the presence of unreacted furfuryl alcohol. Processes are provided for preparing the aforementioned novel liquid prepolymers and solid or cellular interpolymers.
291373
Cenker Moses
Narayan Thirumurti
Basf Wyandotte Corporation
Robic Robic & Associes/associates
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