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Title: Novel oxyalkylated polyol prepolymers, flame retardant interpolymers prepared therefrom, and processes for the preparation thereof

Abstract: Liquid oxyalkylated polyol prepolymers are prepared by oxyalkylating a prepolymer prepared from a hydroxy aromatic compound, an aldehyde and furfuryl alcohol with an alkylene oxide containing about 2-4 carbon atoms. The oxyalkylated polyol prepolymers have a viscosity of 1,000-500,000 centipoises at 25.degree. C. and contain about 1.1-6 moles of interpolymerized aldehyde, about 3.1-15 moles of interpolymerized furfuryl alcohol, and about 1-10 moles of interpolymerized alkylene oxide for each mole of interpolymerized hydroxy aromatic compound. The resultant prepolymers are highly reactive and may be further polymerized with or without monomers such as polyisocyanate to produce flame retardant solid or cellular interpolymers. Flame retardant solid or cellular polyurethanes are prepared in one variant by interpolymerizing organic polyisocyanates with the oxyalkylated polyol prepolymers. In another variant, flame retardant closed cell cellular interpolymers are provided. Processes are provided for preparing the aforementioned novel oxyalkylated polyol prepolymers and solid or cellular interpolymers.


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Inventors: Narayan, Thirumurti (Riverview, MI, US)
Cenker, Moses (Trenton, MI, US)

Application Number: 892271
Filing Date: 1978-03-31
Publication_date: 1979-07-31
Assignee: BASF Wyandotte Corporation (Wyandotte, MI)
Primary Class(es): 521/155 521/99, 521/112, 521/126, 521/127, 521/129, 521/130, 521/131, 521/171, 521/177, 528/44, 528/49, 528/53, 528/58, 528/79
Other Classes:
US Patent Ref:
2462054Feb, 1949Delmonte260/829.
2498656Feb, 1950De Groote et al.260/613.
2608536Aug, 1952Sterling260/2.
3186969Jun, 1965Cox et al.260/2.
3298973Jan, 1967Quarles et al.260/45.
3299167Jan, 1967Knowlson et al.260/56.
3312650Apr, 1967Case et al.260/56.
3390107Jun, 1968Tashlick et al.260/2.
3470118Sep, 1969Forster260/2.
3471631Oct, 1969Quintana174/68.
3549584Dec, 1970Sekera260/829.
3682845Aug, 1972Longley et al.260/2.
3686101Aug, 1972Davis et al.260/2.
3692706Sep, 1972Igglesden260/2.
3725333Apr, 1973Adkins et al.260/56.
3770671Nov, 1973McFarling260/2.
3919127Nov, 1975Larsen et al.260/829.
4016111Apr, 1977Wolff et al.106/15.

Other Refs:
Primary Examiner: Marquis, Melvyn I.
Assistant Examiner:
Attorney: Swick; Bernhard R., Van Landingham, Jr.; L. S., Dunn; Robert E.