Organometallic compositions and polyisocyanate compositions...

Details Organometallic compositions and polyisocyanate compositions... Organometallic compositions and polyisocyanate compositions...

2005-06-21

2005-06-21

Sample, David (Department: 1755)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

C502S103000, C556S138000, C522S023000, C528S055000, C528S056000, C528S059000

Reexamination Certificate

active

06908875

ABSTRACT:
An organometallic composition, suitable for use in curing polyisocyanate compositions, includes a complex of at least one metal selected from iron, cobalt and aluminum and at least one β-dicarbonyl compound wherein when the metal is iron (II) or cobalt (II) the molar ratio of β-dicarbonyl compound to metal is in the range from 2.1:1 to 10:1, and when the metal is aluminum (III), iron (III) or cobalt (III) the molar ratio of β-dicarbonyl compound to metal is in the range from 3.1:1 to 10:1. A polyisocyanate composition containing the organometallic composition and a process for binding lignocellulosic material is also described.

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