FIELD: varnish-and-paint industry. SUBSTANCE: epoxy-urethane varnish designed to protect aluminum alloy and steel articles. Epoxy-urethane varnish comprises epoxy-urethane resin, organic solvent, and amine-type hardener, said epoxy-urethane resin being epoxy-urethane oligomer of formula with average molecular weight 1900 and content of active epoxide groups 6-7%. Above-mentioned hardener is, more particularly, organosilicon diamine of formula with average molecular weight 566 and content of active amino groups 5.7%. All constituents are used in specified proportions. EFFECT: enabled formation of coatings showing high non-wettability, water resistance, chemical resistance, and elasticity, which allows their use for protection of metal structures from atmospheric and chemical influences. 2 tbl
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ORGANOSILICON DIAMINES AS HARDENING AGENTS FOR EPOXIDE COMPOSITIONS | 2002 |
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EPOXY COMPOSITION FOR COATING | 2007 |
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Authors
Dates
2004-06-10—Published
2002-11-25—Filed