Heat-seal coatings

Abstract

The present disclosure includes articles formed from substrates with coatings, e.g., articles with heat-sealed coatings, and methods of preparation thereof. At least one of the coatings of the articles herein may serve as a water barrier. The coatings may comprise, for example, polymer(s), or polymer(s) and mineral(s), and may include one layer or multiple layers of such material(s) or combinations of materials. At least one of the coatings may comprise a discontinuous layer. The articles herein may be used as containers, such as paper cups.

Description

[0001] claim priority [0002] This PCT International Application claims the benefit of priority to U.S. Provisional Patent Application No. 62 / 587,598, filed November 17, 2017, the subject matter of which is incorporated herein by reference in its entirety. technical field [0003] Embodiments of the present disclosure generally relate to coatings, such as heat seal coatings, compositions and articles comprising such coatings, and methods of making the same. Background technique [0004] Various coatings are used to prevent degradation that may occur when exposed to water or other moisture. For example, paper products used to package liquids or food products are often coated with hydrophobic materials, such as polymers. However, the protection provided by polymer coatings may not be sufficient. For example, coatings provided on only one surface or coatings that are not heat-sealable may allow moisture to penetrate the container and compromise its strength or stability. Ad...

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