Urethanic polymerization by chelating agents acting as catalysts

Details Urethanic polymerization by chelating agents acting as catalysts Urethanic polymerization by chelating agents acting as catalysts

1978-08-21

1980-12-02

Cockeram, H. S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521107, 521124, 521125, 521126, 521127, 521128, 521130, 521131, 521902, 528 55, 528 56, 528 57, C08G 1818, C08G 1822, C08G 1814, C08G 1848

Patent

active

042372356

ABSTRACT:
Urethane polymers are produced by reacting isocyanate with hydroxyl compounds in the presence of a catalytic amount of a chelating catalyst or cocatalyst which is a complex of a chelating agent with metallic ions and which does not react with the reagents.

REFERENCES:
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patent: 3028345 (1962-04-01), Johnson
patent: 3108975 (1963-10-01), Lambert et al.
patent: 3422036 (1969-01-01), Ellegast et al.
patent: 3634345 (1972-01-01), Diehr et al.
patent: 3798198 (1974-03-01), Hole
patent: 3896052 (1975-07-01), Lockwood et al.
patent: 4011180 (1977-03-01), Lockwood et al.
patent: 4026836 (1977-05-01), Zimmerman et al.
patent: 4101465 (1978-07-01), Lockwood et al.
patent: 4126742 (1978-11-01), Carleton et al.

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