Aqueous Dispersions of Functionalized Low Molecular Weight Polymers for Rubber to Textile Adhesion

The use of aqueous dispersions of functionalized low molecular weight polymers for rubber to textile adhesion applications is introduced.  Functionalized low molecular weight polymers have previously been used to formulate rubber compounds that exhibit improved adhesion performance.  Aqueous dispersions of the polymers can allow for a wider range of application including waterborne formulations.

 Aqueous dispersions of functionalized low molecular weight polymers show good stability, low viscosity, and small particle size.  The hydrophobic and hydrophilic components of the dispersions allow for interaction between polar and non-polar substrates.  Compatibility with other polymer latexes is demonstrated.  Formulating with standard latexes can reduce tack; improve the adhesion, water-resistance and mechanical properties of the overall blend.   A modified T-peel adhesion method shows that formulations containing the dispersions of functionalized polymers dramatically improve adhesion between model substrates and cured rubber.  The aqueous dispersions of functionalized low molecular weight polymers provide a less complex and more environmentally acceptable formulating alternative.