Patent ID: 9200232
Filing Date: 2015-12-01
Classification: C10M,C10N,G01N

Abstract:
1. A method to determine the predisposition of a polymer to form network or gel in a composition by polymer-polymer interaction, comprising the steps of: (a) obtaining a composition consisting essentially of a polymer in a diluent, wherein the polymer is at least one alpha-olefin copolymer, and (b) determining at least one of (i) the phase lag (angle) of the response strain or stress δ, or (ii) the tangent (tan) δ of the composition by subjecting the composition to sinusoidal (oscillating) stress or strain of certain amplitude and frequency, and (c) assessing at least one of the (i) δ or (ii) tan(δ) determined, thereby determining the predisposition of the polymer to form a network or gel, whereby when at least one of δ is >60° or tan(δ) is >2, determining that said polymer has a reduced predisposition to form a network or gel by polymer-polymer interaction.