Abstract: A specific mixture of polyols, at least one of which contains the transesterification product of the polymer polylactic acid with natural oils. The mixture of polyols can be used as one component of a two-component adhesive for laminating flexible packaging. The other component comprises an isocyanate-functionalized compound. The two components are combined before use and the resulting adhesive can be used to bond films to form a flexible packaging material.

Abstract: Disclosed is a transesterified polylactic acid product which has been transesterified with a diol and at least one natural oil. The transesterified polylactic acid product has surprisingly improved properties compared to unmodified polylactic acid including: a liquid state at room temperature, a reduced melting temperature and increased solubility in a variety of solvents. Also disclosed is a method for producing the transesterified polylactic acid product. The transesterified polylactic acid product is economical to produce and includes a high content of renewable resources. In addition, the product is biodegradable.

Abstract: A specific mixture of polyols, at least one of which contains the transesterification product of the polymer polylactic acid with natural oils. The mixture of polyols can be used as one component of a two-component adhesive for laminating flexible packaging. The other component comprises an isocyanate-functionalized compound. The two components are combined before use and the resulting adhesive can be used to bond films to form a flexible packaging material.

Abstract: Disclosed is a transesterified polylactic acid product which has been transesterified with a diol and at least one natural oil. The transesterified polylactic acid product has surprisingly improved properties compared to unmodified polylactic acid including: a liquid state at room temperature, a reduced melting temperature and increased solubility in a variety of solvents. Also disclosed is a method for producing the transesterified polylactic acid product. The transesterified polylactic acid product is economical to produce and includes a high content of renewable resources. In addition, the product is biodegradable.

Abstract: Disclosed is a transesterified polylactic acid product which has been transesterified with a diol and at least one natural oil. The transesterified polylactic acid product has surprisingly improved properties compared to unmodified polylactic acid including: a liquid state at room temperature, a reduced melting temperature and increased solubility in a variety of solvents. Also disclosed is a method for producing the transesterified polylactic acid product. The transesterified polylactic acid product is economical to produce and includes a high content of renewable resources. In addition, the product is biodegradable.

Abstract: Disclosed is a transesterified polylactic acid product which has been transesterified with a diol and at least one natural oil. The transesterified polylactic acid product has surprisingly improved properties compared to unmodified polylactic acid including: a liquid state at room temperature, a reduced melting temperature and increased solubility in a variety of solvents. Also disclosed is a method for producing the transesterified polylactic acid product. The transesterified polylactic acid product is economical to produce and includes a high content of renewable resources. In addition, the product is biodegradable.

Abstract: A radiation-curable laminating adhesive is provided which contains a) at least one urethane (meth)acrylate oligomer and b) at least one additional (meth)acrylate-functionalized component selected from the group consisting of carboxylic acid-functionalized ester-containing (meth)acrylate monomers and polybutadiene poly(meth)acrylates. The adhesive may also contain other components such as (meth)acrylic polyol (meth)acrylates. Flexible packaging laminates may be obtained by using the aforedescribed adhesive to adhere thin polymeric and/or metallic films together, the adhesive being exposed to an amount of radiation effective to cure the adhesive.

Abstract: Adhesive compositions useful for laminating cellulosic substrates are formulated using an aqueous emulsion of a vinyl ester polymer such as polyvinyl acetate, one or more monomers or oligomers functionalized with (meth)acrylate groups, and a photoinitiator. The adhesive is cured by drying and exposing the adhesive to UV or visible light and is particularly useful for attaching clear films to cellulosic substrates such as paper and boxboard (e.g., in the manufacture of envelopes or folding cartons having windows).

Abstract: A printed image on the outside surface of a food package fabricated using a thin, flexible substrate may be protected against degradation during retorting of the food package by radiation curing a layer of a liquid composition placed on the outside surface. The liquid composition contains at least one radiation-curable monomer or oligomer containing one or more (meth)acrylate groups per molecule and one or more functional groups per molecule selected from the group consisting of hydroxyl groups and carboxylic acid groups, such as an epoxy (meth)acrylate and/or carboxylic acid-functionalized (meth)acrylate.