Coating processes – With pretreatment of the base – Preapplied reactant or reaction promoter or hardener
Patent
1975-03-12
1977-03-15
Hoffman, James R.
Coating processes
With pretreatment of the base
Preapplied reactant or reaction promoter or hardener
260 75N, 260 75UA, 427333, C08G 6352, B05D 310
Patent
active
040125424
ABSTRACT:
A two component system is disclosed for forming rigid polyester reaction products in which each component is storable for an appreciable period of time but reacts upon contact with each other to form the rigid reaction product within a relatively short time. One component comprises a pre-catalyzed polyester resin which normally has a short pot life but which is extended by an excessive amount of an inhibitor. The second component is a synergistic accelerator combination consisting essentially of a metal soap and an aromatic tertiary amine. When the two components interreact, the accelerator combination overcomes the action of the excessive amount of the inhibitor and brings about a normal polymerization of the polyester resin. Optionally, the accelerator combination is part of a fibrous reinforcement and the aromatic amine is solid at room temperatures. This enables the second component to be more readily used in a dry, handleable form for easy storage.
REFERENCES:
patent: 3135625 (1964-06-01), Ingrassia
patent: 3240619 (1966-03-01), Winchester
patent: 3271182 (1966-09-01), Varlet
patent: 3271183 (1966-09-01), Varlet
patent: 3325304 (1967-06-01), Hauck
patent: 3644612 (1972-02-01), Meyer et al.
Golownia Robert F.
Kipp Kevin K.
Oswitch Stanley
Ferro Corporation
Hoffman James R.
Simmons Milton L.
Taylor Wesley B.
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