摘要:
The invention relates to a coextruded, peelable, and biaxially oriented polyester film with a base layer (B) and with at least one outer layer (A) applied to this base layer (B). The outer layer (A) is heat-sealable and features good peelability with respect to nonpolar substrates, such as polystyrene and polypropylene. The heat-sealable and peelable outer layer (A) includes a copolymer of ethylene and polar-ethylene. The invention further relates to a process for the production of the film and to packaging formed from the film.
摘要:
The invention relates to a white opaque film formed from a crystallizable thermoplastic, preferably thermo-plastic polyester in the form of polyethylene terephthalate, barium sulfate and titanium dioxide as pigments, at least one optical brightener, and optionally at least one dye soluble in the thermoplastic. The film optionally includes, an additional functionality, e.g. in the form of an adhesive coating, of a coating with aminosilane or silicone, of UV resistance, of hydrolysis resistance, of flame retardancy, or of a sealable outer layer.
摘要:
The invention relates to a hydrolysis-stable polyester film comprising a polyester, whose thickness is preferably in the range from 0.4 to 500 μm. The film comprises polyester and at least one hydrolysis stabilizer and is distinguished by its low hydrolysis rate. The invention furthermore relates to a process for the production of the film and its use.
摘要:
The invention relates to an at least two-layer polyester film with a total thickness of from about 5 to about 200 μm which comprises polyethylene terephthalate and from about 2 to about 20% by weight—based on the weight of the entire film—of polyethylene naphthalate, and also at least one functional outer layer.
摘要:
The invention relates to a white opaque film formed from a crystallizable thermoplastic, preferably thermo-plastic polyester in the form of polyethylene terephthalate, barium sulfate and titanium dioxide as pigments, at least one optical brightener, and optionally at least one dye soluble in the thermoplastic. The film optionally includes, an additional functionality, e.g. in the form of an adhesive coating, of a coating with aminosilane or silicone, of UV resistance, of hydrolysis resistance, of flame retardancy, or of a sealable outer layer.
摘要:
A process is described for production of a biaxially oriented film which comprises at one crystallizable thermoplastic as main constituent and comprises at least 500 ppm, based on the weight of thermoplastic, of a pigment. The production process uses at least 20% by weight, based on the weight of the film, of recycled material of the same type whose molecular weight has been increased by condensation processes.
摘要:
The invention relates to an at least three-layer, biaxially oriented polyester film with two white outer layers and carbon-black-filled base layer, where the thickness of the outer layers is from 4 to 15 μm, the thickness of the base layer is ≧the total of the thicknesses of the outer layers, the white outer layers include at least 15% by weight of TiO2, the base layer includes at least 4% by weight of TiO2, the carbon-black-containing base layer includes from 1 to 8% by weight of carbon black, and the SV value of the film is at least 600, where all % by weight data are based on the weight of the respective layer, and also to a process for the production of this type of film and to the use of the film in particular in blinds, including roller blinds, Venetian blinds, or projection screens, or in displays.
摘要:
Biaxially stretched film with polymeric constituents formed mainly of polyester in which the film includes at least one copper salt and one halide, with the resulting film having an AC (alternating current) dielectric strength of at least 100 kV/mm at 23° C. and 50 Hz. The invention further relates to the use of the film of the invention, in particular in solar modules, and also to a process for its production.
摘要:
The invention relates to a polyester film comprising at least one base layer (B) and at least one antimicrobially active coating, where this antimicrobial coating a) comprises an ammonium silane of the following formula (I) where R1 and R2 are in each case identical or different and, independently of each other, are hydrogen moieties or C1-C8-alkyl moieties, which are straight-chain or—in the case of C3-C8-alkyl moieties—can be branched, R1 and R2 preferably being identical and being —CH3; in aqueous dispersions, one, two or all of the R1 moieties are hydrogen; n is greater than 0 and smaller than 10, preferably from 2 to 5, and particularly preferably 3; m is greater than 0 and smaller than 30, preferably from 6 to 25, and particularly preferably from 15 to 20, and very particularly preferably 17; X− is chloride, sulfate, or nitrate; and b) the thickness of the coating is smaller than 1 μm, preferably smaller than 0.3 μm, and particularly preferably smaller than 0.15 μm.