Back to results
US 5,326,814 AGranted
High-gloss latex paints and polymeric compositions for use therein
AssigneeRohm and Haas Company
InventorJohn Biale
Life of this patent
Estimating the term…
Abstract
A binder for use in high gloss latex paints comprises water, a copolymer, and less than about 1 weight percent surfactant. The copolymer comprises about 25 to about 60 weight percent soft monomer, about 40 to about 75 weight percent hard monomer, and about 1 to about 3 weight percent olefinic carboxylic acid monomer. In addition, the copolymer comprises about 0.5 to about 3 weight percent copolymerizable surfactant monomer and/or (i) about 0.5 to about 4 weight percent additional monomer selected from the group consisting of cyanoacetoxy-containing monomers and acetoacetoxy-containing monomers and (ii) about 0.5 to about 3 weight percent ethyleneureido-containing monomer.
Claims6
A copolymer comprising:
- (a) about 25 to about 60 weight percent soft monomer whose homopolymer has a T.sub.g of less than about -20.degree. C., the soft monomer being selected from the group consisting of nonfunctional acrylic monomers, non-functional methacrylic monomers, and mixtures thereof;
- (b) about 40 to about 75 weight percent hard monomer whose homopolymer has a T.sub.g of greater than about 30.degree. C., the hard monomer being selected from the group consisting of alkenyl aromatic monomers, non-functional acrylic monomers, non-functional methacrylic monomers, acrylonitrile monomer, and mixtures thereof, provided that the acrylonitrile monomer comprises less than about 10 weight percent of the copolymer;
- (c) about 1 to about 3 weight percent olefinic carboxylic acid monomer;
- (d) about 0.5 to about 3 weight percent copolymerizable surfactant monomer containing a group having the formula
- R--O--(CH.sub.2 CHO).sub.x --
- wherein R is selected from the group consisting of alkyl groups containing about 12 to about 20 carbon atoms and alkylaryl groups whose alkyl moiety contains about 8 to about 9 carbon atoms, x is greater than 40,
- (e) about 0.5 to about 4 weight percent additional monomer selected from the group consisting of cyanoacetoxy-containing monomers and acetoacetoxy-containing monomers having the respective formulas ##STR9## wherein R.sub.1 is selected from the group consisting of hydrogen and halogen, R.sub.2 is selected from the group consisting of hydrogen, halo, thio and monovalent organic radicals, R.sub.3 is a divalent radical, and R.sub.4 is selected from the group consisting of hydrogen and monovalent organic radicals;
- and
- (f) about 0.5 to about 3 weight percent ethyleneureido-containing monomer, and monomers (a), (b), and (c) in total constitute at least about 90 weight percent of the monomeric content of the copolymer.
6 more elements
A binder comprising:
- (i) water;
- (ii) less than about 1 weight noncopolymerizable surfactant, and
- (iii) a copolymer formed by reacting:
- (a) about 25 to about 60 weight percent soft monomer whose homopolymer has a T.sub.g of less than about -20.degree. C., the soft monomer being selected from the group consisting of nonfunctional acrylic monomers, non-functional methacrylic monomers, and mixtures thereof.
- (b) about 40 to about 75 weight percent hard monomer whose homopolymer has a T.sub.g of greater than about 30.degree. C., the hard monomer being selected from the group consisting of alkenyl aromatic monomers, non-functional acrylic monomers, non-functional methacrylic monomers, acrylonitrile monomer, and mixtures thereof, provided that the acrylonitrile monomer comprises less than about 10 weight percent of the copolymer;
- (c) about 1 to about 3 weight percent olefinic carboxylic acid monomer;
- (d) about 0.5 to about 3 weight percent copolymerizable surfactant monomer containing a group having the formula
- R--O--(CH.sub.2 CHO).sub.x --
- wherein R is selected from the group consisting of alkyl groups containing about 12 to about 20 carbon atoms and alkylaryl groups whose alkyl moiety contains about 8 to about 9 carbon atoms, x is greater than 40,
- (e) about 0.5 to about 5 weight percent wet adhesion promoting monomer.
7 more elements
A binder comprising:
- (i) water;
- (ii) less than about 1 weight noncopolymerizable surfactant, and
- (iii) a copolymer formed by reacting:
- (a) about 25 to about 60 weight percent soft monomer whose homopolymer has a T.sub.g of less than about -20.degree. C., the soft monomer being selected from the group consisting of nonfunctional acrylic monomers, non-functional methacrylic monomers, and mixtures thereof.
- (b) about 40 to about 75 weight percent hard monomer whose homopolymer has a T.sub.g of greater than about 30.degree. C., the hard monomer being selected from the group consisting of alkenyl aromatic monomers, non-functional acrylic monomers, non-functional methacrylic monomers, acrylonitrile monomer, and mixtures thereof, provided that the acrylonitrile monomer comprises less than about 10 weight percent of the copolymer;
- (c) about 1 to about 3 weight percent olefinic carboxylic acid monomer;
- (d) about 0.5 to about 3 weight percent copolymerizable surfactant monomer containing a group having the formula
- R--O--(CH.sub.2 CHO).sub.x --
- wherein R is selected from the group consisting of alkyl groups containing about 12 to about 20 carbon atoms and alkylaryl groups whose alkyl moiety contains about 8 to about 9 carbon atoms, x is greater than 40,
- (e) about 0.5 to about 4 weight percent additional monomer selected from the group consisting of cyanoacetoxy-containing monomers and acetoacetoxy-containing monomers having the respective formulas ##STR10## wherein R.sub.1 is selected from the group consisting of hydrogen and halogen, R.sub.2 is selected from the group consisting of hydrogen, halo, thio and monovalent organic radicals, R.sub.3 is a divalent radical, and R.sub.4 is selected from the group consisting of hydrogen and monovalent organic radicals, and
- (f) about 0.5 to about 3 weight percent ethyleneureido-containing monomer.
8 more elements
A copolymer comprising:
- (a) about 25 to about 60 weight percent soft monomer whose homopolymer has a Tg of less than about -20.degree. C., the soft monomer being selected from the group consisting of nonfunctional acrylic monomers, non-functional methacrylic monomers, and mixtures thereof.
- (b) about 40 to about 75 weight percent hard monomer whose homopolymer has a Tg of greater than about 30.degree. C., the hard monomer being selected from the group consisting of alkenyl aromatic monomers, non-functional acrylic monomers, non-functional methacrylic monomers, acrylonitrile monomer, and mixtures thereof, provided that the acrylonitrile monomer comprises less than about 10 weight percent of the copolymer;
- (c) about 1 to about 3 weight percent olefinic carboxylic acid monomer;
- (d) about 0.5 to about 4 weight percent additional monomer selected from the group consisting of cyanoacetoxy-containing monomers and acetoacetoxy-containing monomers having the respective formulas ##STR11## wherein R.sub.1 is selected from the group consisting of hydrogen and halogen, R.sub.2 is selected from the group consisting of hydrogen, halo, thio and monovalent organic radicals, R.sub.3 is a divalent radical, and R.sub.4 being selected from the group consisting of hydrogen and monovalent organic radicals, and
- (e) about 0.5 to about 3 weight percent ethyleneureido-containing monomer,
- wherein monomers (a), (b), and (c) in total constitute at least about 90 weight percent of the monomeric content of the copolymer.
3 more elements
Dependencies are inferred from the claim text.