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US 4,067,893 AGranted
Aqueous urea metal complex composition
AssigneePoly-Chem Industries, Inc.
InventorHarry L. Lander
Life of this patent
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Abstract
Polymeric materials are prepared by polymerizing an organic compound containing at least two labile hydrogens in the presence of a zirconium, hafnium or titanium halide. The labile hydrogen atoms are provided by amides, including aminoplasts, carboxylic acids, polyhydroxy compounds or other compounds capable of forming reactive complexes with zirconium, hafnium and titanium halides. Aqueous media can be employed.
Claims2
An aqueous urea-metal complex composition comprising:
- a. a urea-metal complex consisting a metal selected from the group consisting of zirconium, hafnium or titanium is a mole ratio of 0.01 to 0.5 moles of metal to one mole of urea;
- and
- b. water, in a ratio of 0.3 to 10.0 moles of water per mole of urea;
- said composition having an acid value of less than one.
1 more element
Dependencies are inferred from the claim text.