Heat-sealable adhesive composition and uses thereof

Abstract

A heat-sealable adhesive composition comprises a polyhydroxyalkanoate and a booster. The polyhydroxyalkanoate is present in an amount of at least 40%. The booster is selected from: an acrylate-based polymer in an amount of 0.5 to 60%; a starch or modified starch in an amount of 0.1 to 30%; a PVOH or EVOH in an amount of 0.1 to 30%; a cellulose derivative in an amount of 0.1 to 10%; silica in an amount of 0.1 to 10%; and combinations thereof. The stated percentages are by weight of the composition on a dry matter basis. The booster improves one or more properties of the polyhydroxyalkanoate, such as the rate at which hot tack ramps up and/or the seal strength of the adhesive. Also provided is packaging including the adhesive composition, as well as methods of using the adhesive composition and the use of a booster in an adhesive composition.

Dependencies are inferred from the claim text.