Aqueous coating composition
AssigneeJsr Corporation
InventorsTakeshi Mogi, Minoru Katou, Katsuhiko Tsuruoka
Life of this patent
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Abstract
An aqueous coating composition comprising (A) an aqueous dispersing material which is a copolymer having a glass transition temperature (Tg) of 80° C. or less which is obtained by the copolymerization a specific unsaturated carboxylic acid, (meth)acrylic acid alkyl ester, and other monomers and (B) a specific aminoalcohol compound in a specific proportion. The aqueous coating composition is safe due to absence of heavy metals, produces excellent gloss and has a fine external appearance when coated, and exhibits superior durability and water resistance which are represented by black heel mark resistance and anti-scuff properties. The composition is particularly useful as a floor coating material.
Claims20
An aqueous coating composition comprising:
- (A) 100 parts by weight (solid basis) of an aqueous dispersing material comprising a copolymer having a glass transition temperature (Tg) of 80° C. or less which is prepared by the copolymerization of (a) 2-40 wt % of α,β-unsaturated carboxylic acid (monomer (a)), (b) 2-40 wt % of (meth)acrylic acid alkyl ester (monomer (b)), and (C) 0-78 wt % of monomers (monomer (c)) polymerizable with the monomer (A) and monomer (b), and
- (B) 0.1-100 parts by weight of a compound having the following formula (1),
- R3−nNXn (1)
- wherein R represents a hydrogen atom, an alkyl group having 1-12 carbon atoms, or an aminoalkyl group having 1-12 carbon atoms, X represents a hydroxyalkyl group having 1-10 carbon atoms, and n is an integer from 1-3, provided that two or more Rs, if present may be either different or identical and two or more Xs, if present, may be either different or identical.
Dependencies are inferred from the claim text.