Abstract: A copolyester film comprising a copolyester which comprises repeating units derived from a diol, a dicarboxylic acid and a poly(alkylene oxide), wherein the copolyester film further comprises a first metal ion-containing component selected from conductive ceramic particulate materials, and wherein the film may further comprise additional metal ions from one or more sources other than said conductive ceramic particulate material.

Abstract: A polymeric film comprising a polyester substrate layer and a heat-scalable polymeric layer disposed on one surface of said polyester substrate layer, wherein the heat-scalable polymeric layer comprises copolyester A having a glass transition temperature Tg(A) in an amount WA and copolyester B having a glass transition temperature Tg(B) in an amount WB, wherein: (i) WA>WB; (ii) WA is at least 50 wt % by total weight of the heat-scalable polymeric layer; (iii) WB is at least 10 wt % by total weight of the heat-scalable polymeric layer; (iv) Tg(A)>Tg(B); (v) Tg(B) is in the range of ?35° C. to ?10° C.; and (vi) Tg(A) is preferably in the range of ?15° C. to 5° C.

Abstract: A current collector comprising a biaxially oriented polymeric substrate layer and a first metal layer on a side of the polymeric substrate layer, wherein the polymeric substrate layer exhibits positive thermal expansion in air at 200° C. in each of the transverse direction (TD) and machine direction (MD). The polymeric substrate layer has a thickness of no more than 12 pm and the first metal layer has a thickness of no more than 1000 nm.

Abstract: A polyester film comprising a polymeric phosphonate flame retardant in an amount of from about 1.0 to about 25.0 wt % by total weight of the film and further comprising at least one metal cation selected from the group consisting of Group I and Group II metal cations.

Abstract: A laminate and a method for preparing a laminate are provided. The method comprises the steps of providing a container or sheet which comprises a fibrous material, disposing a primer composition onto at least one surface of the container or sheet to form a primer layer on the container or sheet, and also disposing a polymeric liner film onto a surface of the primer layer to form a lined container or sheet. The primer composition comprises at least one sulfopolyester.

Abstract: A breathable, heat-sealable, composite film comprising substrate layer (A), a primer coating layer (B) disposed on the substrate layer, and a heat-sealable coating layer (C) disposed on the primer coating layer is provided, wherein (i) said substrate layer (A) comprises a polyester comprising monomeric units derived from one or more diol(s) and one or more dicarboxylic acid(s); (ii) said primer coating layer (B) comprises a cross-linked sulfopolyester; and (iii) said heat-sealable coating layer (C) comprises a first copolyester.

Abstract: A thermoformable biaxially oriented coextruded polyester film comprising a copolyester base layer B, a first polyester outer layer A1 and a second polyester outer layer A2, wherein said outer layers are disposed on opposite surfaces of said base layer, and wherein: (i) said base layer B comprises a copolyester derived from terephthalic acid (TA) and a second aromatic dicarboxylic acid and one or more diol(s), wherein said second aromatic dicarboxylic acid is present in the copolyester in an amount of from about 5 to about 20 mol % of the acid fraction of the copolyester; (ii) the polyester of each of said outer layers A1 and A2 is selected from polyethylene terephthalate (PET); and (iii) the thickness of the base layer constitutes at least 90% of the total thickness of the coextruded multi-layer polyester film.

Abstract: A polyester film comprising a polymeric phosphonate flame retardant in an amount of from about 1.0 to about 25.0 wt % by total weight of the film and further comprising at least one metal cation selected from the group consisting of Group I and Group II metal cations.

Abstract: A thermoformable biaxially oriented coextruded polyester film comprising a copolyester base layer B, a first polyester outer layer A1 and a second polyester outer layer A2, wherein said outer layers are disposed on opposite surfaces of said base layer, and wherein: (i) said base layer B comprises a copolyester derived from terephthalic acid (TA) and a second aromatic dicarboxylic acid and one or more diol(s), wherein said second aromatic dicarboxylic acid is present in the copolyester in an amount of from about to 5 about 20 mol % of the acid fraction of the copolyester; (ii) the polyester of each of said outer layers A1 and A2 is selected from polyethylene terephthalate (PET); and (iii) the thickness of the base layer constitutes at least 90% of the total thickness of the coextruded multi-layer polyester film.

Abstract: A composite film includes a) a self-supporting layer of a polymer film (such as a polyester), b) an optional primer layer on the polymer film layer, wherein the primer layer includes a PVdX (X being halo), acrylic or vinyl resin; and c) a layer of heat seal composition on the primer layer, wherein the heat seal composition includes a polyolefin plastomer (POP) resin and a tackifier that constitutes at least 20 wt % of the heat seal composition. The composite film may be formed by applying a coating composition including the heat seal composition in a solvent to a primer layer on the polymer film or directly on the polymer film in absence of the optional primer layer, and then evaporating the solvent. The composite film may be heat-sealed to a surface of a container or a self-supporting film.

Abstract: A heat-sealable composite film comprising an oriented polyester substrate layer having a first and second surface is provided. Disposed on the first surface of the substrate layer is a heat- sealable polymeric coating layer comprising a styrenic linear block copolymer thermoplastic elastomer, an ethylene vinyl acetate (EVA) copolymer and a tackifying resin. Also described is a sealed container comprising a receptacle containing a food product, and a lid formed from said heat-sealable composite film.

Abstract: Photovoltaic cells which comprise a back plane comprising a polyester film and an adhesive coating derived from an ethylene vinyl acetate copolymer and an oxazoline crosslinking agent and methods for forming the same are described.

Abstract: A composite film comprising a of amide substrate layer having a first and second surface, and a primer coating layer disposed on the first surface of the substrate layer, wherein the primer coating layer is derived from a composition comprising an acid copolymer resin, an organic crosslinker and an acid catalyst. A heat-sealable coating is applied on the primer.

Abstract: A polyester film comprising a polymeric phosphonate flame retardant in an amount of from about 1.0 to about 25.0 wt % by total weight of the film and further comprising at least one metal cation selected from the group consisting of Group I and Group II metal cations.

Abstract: The use of titanium dioxide particles coated by an organic coating for increasing the hydrolysis resistance of an oriented polyester film, particularly wherein the organic coating does not comprise or is not derived from a silane, and particularly wherein the organic coating is selected from an organophosphorus compound and a polymeric organic coating; and oriented polyester films comprising such titanium dioxide particles coated by an organic coating; and photovoltaic cells comprising such films.

Abstract: A composite film includes a) a self-supporting layer of a polymer film (such as a polyester), b) an optional primer layer on the polymer film layer, wherein the primer layer includes a PVdX (X being halo), acrylic or vinyl resin; and c) a layer of heat seal composition on the primer layer, wherein the heat seal composition includes a polyolefin plastomer (POP) resin and a tackifier that constitutes at least 20 wt % of the heat seal composition. The composite film may be formed by applying a coating composition including the heat seal composition in a solvent to a primer layer on the polymer film or directly on the polymer film in absence of the optional primer layer, and then evaporating the solvent. The composite film may be heat-sealed to a surface of a container or a self-supporting film.

Abstract: A tube comprising a first channel and a second channel wherein each of said first and second channels extends along the longitudinal axis of said tube, and wherein said tube is constituted by a first heat-sealable polymeric film A and a second heat-sealable polymeric film B. Said polymeric films A and B each have a first surface (A1, B1) and a second heat-sealable surface (A2, B2) respectively. Polymeric films A and B are disposed such that said heat-sealable surfaces A2 and B2 are in contact with and adhered to each other by heat-seal bonds which do not extend across the full surface area of said heat-sealable surfaces A2 and B2. Also described are methods of making the tube, a kit comprising a plurality of polymeric films for forming the tube, and methods for using the tube in the delivery of injectable chemicals.

Abstract: The invention is concerned with a blade for a tape measure, wherein the blade comprises an elongate metal substrate and further comprises at least one oriented polyamide protective film. The oriented polyamide protective film comprises an oriented polyamide substrate film and may comprise a heat-sealable polymeric coating layer.

Abstract: A method of preparing a multi-layer assembly, or of protecting a surface of a multi-layer substrate from damage and/or contamination and/or debris, said method comprising the steps of: (i) providing a composite film comprising a polymeric base layer having a first and second surface and disposed on the first surface thereof a polymeric protective layer having a first surface and a second surface such that the first surface of the said base layer is in contact with the first surface of the polymeric protective layer, wherein said polymeric protective layer comprises an ethylene-based copolymer, and preferably wherein the polymeric base layer comprises a polyester derived from one or more diol(s) and one or more dicarboxylic acid(s); (ii) removing said polymeric protective layer from the first surface of said base layer; (iii) disposing on the exposed first surface of said base layer one or more functional layers to provide a multi-layer substrate, wherein the, or at least the uppermost, functional layer compri

Abstract: Use of a copolyester film in the manufacture of a lithium-ion wet cell battery comprising an anode, a cathode and an electrolyte, wherein the copolyester film comprises a copolyester which comprises repeating units derived from a diol, a dicarboxylic acid and a poly(alkylene oxide)glycol.