An ultra-fast marine-biodegradable composite film can include at least one water-soluble layer, and at least one marine-biodegradable layer disposed in contact with the at least one water-soluble layer. The composite film can include a plurality of the water-soluble layer, and a plurality of the marine-biodegradable layer interspaced between the marine-biodegradable layers. The composite film may be used for packaging, including food packaging. Methods of preparing an ultra-fast marine-biodegradable composite film are also disclosed.

In an embodiment, the invention comprises a thermoformable sheet which comprises a polymer layer, and a barrier layer disposed adjacent the polymer layer. The barrier layer comprises a plurality of particles coated in an adhesion promotor. The plurality of coated particles are dispersed in a barrier solution of polyvinyl alcohol.

A roofing membrane composite includes a roofing membrane and a protective film removable affixed to a top major surface of the roofing membrane without an adhesive layer between the protective film and the roofing membrane, wherein the protective film includes at least one layer with at least one polyolefin. A method for producing a roofing membrane composite and a method for waterproofing a roof substrate.

A retort food pouch is disclosed, including at least one sidewall and a pouch closure. The sidewall is a multi-layer structure which is made up of: (1) a biodegradable heat-sealable layer which includes polyhydroxyalkanoates; (2) a barrier layer which includes aluminum and/or polyhydroxyalkanoates; (3) optionally, a nylon layer; and (4) a biodegradable printed layer which also includes polyhydroxyalkanoates and/or cellulose. These layers are adhered together with one or more adhesives to form the multi-layer structure.

The invention relates to a flooring panel suitable for constructing a floor covering, which panel comprises a core layer and a decorative top layer and a layer situated between the core layer and the decorative top layer which enables improves sound performance.

A composite panel structure of a polymer matrix cote sandwiched by metal layers is described. The polymer matrix comprises 1-30 wt % fluoropolymer and 70-99 wt % of a flame retardant mineral. The fluoropolymer may be polyvinylidene fluoride (PVDF) with a high limiting oxygen index, which confers fire resistance properties to the polymer matrix and the composite panel structure. The composite panel structure may be used on the exterior of buildings and may fulfill building code requirements for the polymer matrix core being noncombustible as determined by ASTM E136 and CAN/ULC S114 compliance.

The invention provides multilayer surface coverings each having a layer obtained from a filler- containing PVC plastisol and obtained from a filler-free PVC plastisol, each of which comprises a plasticizer composition comprising bis(2-ethylhexyl) cyclohexane-1,4-dicarboxylate. Such surface coverings may be used as floor coverings or as imitation leather.

A multi-layered membrane comprising skin layers including an ethylene-based olefinic block copolymer (EBOC); and two or more core layers including a propylene-based elastomer (PBE).

This application provides a composite film for a cable wrapping layer and a preparation method for the same. The composite film for the cable wrapping layer includes a PE film layer, a PET film layer laminated at the PE film layer, an aluminum foil layer laminated at the PET film layer, and a bonding layer arranged between the PET film layer and the aluminum foil layer. The PE film layer is made of raw materials having the following parts by weight: 40-45 parts of LLDPE with a melt index of 0.9-1.1 g/10 min and a density of 0.920-0.922 g/cm.sup.3, 35-40 parts of m-LLDPE with a melt index of 1.9-2.1 g/10 min and a density of 0.917-0.920 g/cm.sup.3 and 15-25 parts of ethylene-vinyl acetate copolymer.

The invention discloses a bionic laminated thermal insulation material, which imitates a multi-thin laminated and thin-layer micro-pore structure of Sequoia sempervirens bark with fire resistance, corrosion resistance and excellent thermal insulation performance. A low thermal conductivity microporous powder is used as main raw material, while reinforcing agent, plasticizer and porosity agent are added to form microporous thin-layer units, and each thin-layer unit is bonded and laminated to make a laminated thermal insulation material. The thermal conductivity of the finished products is as low as 0.02˜0.05 W/m.Math.k, with good thermal insulation and mechanical properties, which can be used in a temperature range below 1000° C., with better thermal insulation and energy-saving effect and toughness than ordinary thermal insulation materials, significantly reducing the thickness of the insulation layer, and can be widely used in industrial furnaces, thermal engineering devices, insulation pipes and other fields.