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Polymeric Compositions Comprising Modified Polymers and Water-based Overprint varnishes, Coatings, Inks, Adhesives and Dispersions Containing the Same

IP.com Disclosure Number: IPCOM000127545D
Publication Date: 2005-Aug-31

Publishing Venue

The IP.com Prior Art Database

Abstract

A bulk polymerization process for the preparation of modified polymeric products is disclosed including charging continuously into a reaction zone at least one ethylenically unsaturated acid-functional monomer and optionally at least one alkanol having the formula ROH, where R is a linear or branched chain alkyl moiety having at least 4 carbon atoms. The process also includes modification of the polymeric product by incorporation of an amine with greater than 4 carbon atoms. The modified polymeric products can be used in a number of water-based compositions including overprint varnishes, inks, coatings, adhesives, floor polishes, paints, barrier coatings, primers, coil coatings, wax dispersions, oil dispersions, wax emulsions, oil emulsions, functional paper coatings, foil coatings, paper sizing agents, and pigment dispersions.

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POLYMERIC COMPOSITIONS COMPRISING MODIFIED POLYMERS

Abstract

    A bulk polymerization process for the preparation of modified polymeric products is disclosed including charging continuously into a reaction zone at least one ethylenically unsaturated acid-functional monomer and optionally at least one alkanol having the formula ROH, where R is a linear or branched chain alkyl moiety having at least 4 carbon atoms. The process also includes modification of the polymeric product by incorporation of an amine with greater than 4 carbon atoms. The modified polymeric products can be used in a number of water-based compositions including overprint varnishes, inks, coatings, adhesives, floor polishes, paints, barrier coatings, primers, coil coatings, wax dispersions, oil dispersions, wax emulsions, oil emulsions, functional paper coatings, foil coatings, paper sizing agents, and pigment dispersions.

Introduction

    The present disclosure relates to a bulk polymerization process for the preparation of modified polymeric products, to the modified polymeric products made by the process, to processes for preparing emulsions and dispersions utilizing the modified polymeric products, and to overprint varnishes (OPVs), inks, coatings, surfactants, adhesives, paints, primers, and floor polishes containing the modified polymeric products.

    Conventional solvent-based industrial finishes and coatings have presented many problems to date. Organic solvents can pollute the workplace and environment. In addition, many organic solvents are readily ignited, toxic, expensive, and lower the quality of finishes, and they can add undesirable colors to an otherwise colorless finish. As a replacement for these solvent-based finishes, the trend in the polymer industry has been toward high solids, liquid coatings and polymerization processes reducing or eliminating solvents.

    High solids coatings offer significant advantages over conventional, solvent-based coatings. For example, high solids coatings do not pollute the air, they reduce or eliminate exudation of fumes in use, they reduce the energy requirements for their preparation in terms of material, energy expended and labor, and unlike solvent-based systems, they do not present significant fire and toxicity problems. One of the most enduring and difficult problems in preparing and utilizing high solids coatings is the selection and control of viscosity. Significant efforts have been made to improve processes and polymeric products for use in high solids applications. For example, various methods of characterizing polymers such as the number average molecular weight (Mn), weight average molecular weight (Mw), and the sedimentation average molecular weight (Mz) and ratios calculated using these characteristics such as the polydispersity ratio (Mw/Mn) and the dispersion index (Mz/Mn) have been investigated and adjusted to obtain polymeric products with viscosities useful for high solids applications. Although these eff...