Mannich condensates having fire retardancy properties and manufa

Details Mannich condensates having fire retardancy properties and manufa Mannich condensates having fire retardancy properties and manufa

1983-10-25

1984-12-18

Cockeram, Herbert S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

252182, 528 73, C08G 1814, C08G 1832

Patent

active

044891784

ABSTRACT:
The invention relates to Mannich condensates of phenol, formaldehyde and diethanolamine in which a minor amount (e.g., less than 1%) of melamine is dissolved subsequent to alkoxylation with propylene oxide or a mixture of propylene oxide and ethylene oxide. The thus-prepared alkoxylated Mannich condensates are then used as all or a part of the polyol component in making a rigid polyurethane foam having improved fire retardancy properties.

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patent: 4317889 (1982-03-01), Pcolinsky
patent: 4335029 (1982-06-01), Dabi et al.
patent: 4369258 (1983-01-01), Johnson

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