Polyester/acrylic hybrid latexes for printing inks with improved

Details Polyester/acrylic hybrid latexes for printing inks with improved Polyester/acrylic hybrid latexes for printing inks with improved

1997-07-14

1999-06-15

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524513, C09D 500

Patent

active

059122811

ABSTRACT:
An aqueous-dispersion comprising a polyester (A) having repeat units from at least one dicarboxylic acid, at least one difunctional sulfomonomer containing at least one metal sulfonate group attached to an aromatic nucleus wherein said functional groups are carboxyl or hydroxyl, and at least one difunctional glycol; and a polymer (B) having repeat units from styrene or one or more derivatives of styrene; a hydroxyalkyl(meth)-acrylate; and a carboxyl group containing monomer selected from methacrylic acid, acrylic acid, itaconic acid and mixtures thereof. Polymer (B) is formed from monomers polymerized in the presence of an aqueous dispersion of polyester (A). The aqueous dispersion may be used in various coatings and inks having excellent water resistance, alkaline resistance, and redispersibility.

REFERENCES:
patent: 4939233 (1990-07-01), Jenkins et al.
patent: 4946932 (1990-08-01), Jenkins
patent: 5268412 (1993-12-01), Raynolds
patent: 5274025 (1993-12-01), Stockl
patent: 5342877 (1994-08-01), Clark
patent: 5344872 (1994-09-01), Debord

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