Abstract: A process for producing a thermoformable and bondable fabric in which the fabric is biodegradable and/or compostable. The process comprises extruding a polymeric blend to form a plurality of filaments, the filaments collectively comprising the fabric.

Abstract: A process for producing a thermoformable and bondable fabric in which the fabric is biodegradable and/or compostable. The process comprises extruding a polymeric blend to form a plurality of filaments, the filaments collectively comprising the fabric.

Abstract: A process for producing a thermoformable and bondable fabric in which the fabric is biodegradable and/or compostable. The process comprises extruding a polymeric blend to form a plurality of filaments, the filaments collectively comprising the fabric.

Abstract: A thermoplastic, biodegradable polymer blend having a high surface energy and good adhesion without the need for pretreatment, is made up of starch in the range 10% to 60% by weight of the polymer blend, at least one further carrier polymers in the range 40% to 90% by weight of the polymer blend and one or more process aids in the range 0% to 0.5% by weight of the polymer blend. The polymer blends typically have a surface energy after processing of at least 40 mN/m.

Abstract: A bio-resin composition contains cellulose acetate and a biodegradable secondary polymer in a ratio of at least 10:1 by weight of the total weight of the composition wherein the secondary polymer is an aliphatic polyester such as polybutylene succinate or an aliphatic co-polyester such as polybutylene succinate adipate or an aliphatic/aromatic polyester such as polybutylene adipate terephthalate. The secondary polymer may be present in an amount up to 10% by weight, more preferably up to 6% by weight and more preferably still in the range 2% to 3% by weight of the total weight of the composition where the combined amount of secondary polymer and cellulose acetate may be up to 85% of the total weight of the composition.

Abstract: A thermoplastic, biodegradable polymer blend showing high surface energy and good adhesion without the need for pre-treatment consists of starch in the range 10% to 60% by weight of the polymer blend, one or more further carrier polymers in the range 40% to 90% by weight of the polymer blend and one or more process aids in the range 0% to 0.5% by weight of the polymer blend. The polymer blends typically have a surface energy after processing of at least 40 mN/m.

Abstract: A starch based polymer blend suitable for extrusion coating, lamination of paper, film, coated or metallised film, foil, and fibrous webs comprises starch in the range 10% to 60% by weight of the polymer blend, one or more further carrier polymers in the range 40% to 90% by weight of the polymer blend, and optionally one or more process aids in the range 0% to 0.1% by weight of the polymer blend wherein the polymer blend has a melt flow index of at least 10 g/10 min (5 kg, 190 C).

Abstract: A bio-resin composition contains cellulose acetate and a biodegradable secondary polymer in a ratio of at least 10:1 by weight of the total weight of the composition wherein the secondary polymer is an aliphatic polyester such as polybutylene succinate or an aliphatic co-polyester such as polybutylene succinate adipate or an aliphatic/aromatic polyester such as polybutylene adipate terephthalate. The secondary polymer may be present in an amount up to 10% by weight, more preferably up to 6% by weight and more preferably still in the range 2% to 3% by weight of the total weight of the composition where the combined amount of secondary polymer and cellulose acetate may be up to 85% of the total weight of the composition.

Abstract: A dyestuff capable of undergoing a clearly visible colour change when contacted with a color-developing material is dispersed in the body of a plastics film and used in the identification of goods. The film can be used for packaging of the goods or as a label or seal affixed to the goods. When testing the authenticity of packaging goods, the plastics film is marked with the color-developing chemical to produce a colored mark on the package. The dyestuff is preferably a latent dyestuff which is colorless and invisible to the eye under ambient conditions for use of the film but which forms a clearly visible color when contacted with the color-developing material.

Abstract: A process for the manufacture of a composite laminate which includes a thermoplastic film laminated to a substrate. The front surface of the film has a regular embossed pattern of protrusions which have a height in the range of 0.5 to 10 microns and a separation in the range 20 to 400 microns. The rear surface of the film confronts and is bonded to the substrate. The manufacturing process of the composite includes the steps of applying a layer of a melt adhesive between the rear surface of the film having a regular embossed pattern on its front surface and the substrate to form a composite, and running the composite of the film, the layer and the substrate between nip rollers to apply pressure to the composite whilst the adhesive is in a heated condition, so as to effect thermal lamination of the film to the substrate.