Process for curing polyurethane coatings and compositions

Details Process for curing polyurethane coatings and compositions Process for curing polyurethane coatings and compositions

1988-11-18

1992-02-25

McCamish, Marion E.

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

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522 27, 522 28, 522 29, 522 55, 522 59, 522 64, 522174, 528 51, 528 56, 528 85, C08G 1822, C08G 1882

Patent

active

050914391

ABSTRACT:
Compounds of the formula ##STR1## in which a is 1, 2, or 3, R.sup.1 is an uncharged, carbocyclic or heterocyclic aromatic ring, unsubstituted or substituted, R.sup.2 is an unsubstituted or substituted cyclopentadienyl or indenyl anion, and .vertline.X.vertline..sup.a- is an a-valent anion, are suitable for use as latent curing catalysts for two-component polyurethane coatings which are activated by irradiation with actinic light or by heating.

REFERENCES:
patent: 4076657 (1978-01-01), Kracklauer
patent: 4143002 (1979-03-01), Gill
patent: 4220731 (1980-09-01), Zuppinger
patent: 4377646 (1983-03-01), Blout
patent: 4549945 (1985-10-01), Lindstrom
patent: 4613660 (1986-09-01), Goel
McManus, JCS Chem. Comm., 253 (1974).
Korshak, CA 76, 114905y (1972).
McManus, CA 79, 116025x (1973).

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