High frequency weldable and cooling flexible polymer mixture and its use

摘要

A high frequency weldable and cold flexible polymer mixture containing a polymer of ethylene with polar comonomers, a terpolymer and/or copolymer of ethylene, propylene, and/or butylene, and polar comonomers, and a thermoplastic polyolefin is new. A high frequency weldable and cold flexible polymer mixture containing (wt.%): a copolymer of ethylene with polar comonomers (1-30), selected from: (a) vinyl ester of 2-8C carboxylic acids, 1-2C alkyl acrylate and/or methacrylate, where the copolymer has a melt index MFI (in accordance with DIN 53 735, 190 degrees C, 2.16 kg) of 0.1-30 g/10 min and a comonomer content of about 25 wt.%; (b) a component (b1) and/or (b2) selected from (b1) a terpolymer, where the monomer is selected from the three groups: (1) ethylene, propylene, and/or butylenes, (2) vinyl ester of 2-8C saturated carboxylic acids, 1-12C alkyl acrylate and/or methacrylate, and (3) carbon monoxide and/or glycidyl acrylate or methacrylate, where (wt.%) the content of monomers (1) is about 30-90, monomers (2) about 10-70, and monomers (3) about 1-20, and the MFI of the terpolymer is about 0.1-30 g/0 min; (b2) a copolymer in which the monomer is selected from: (1) ethylene propylene, and/or butylene, and (2) a vinyl ester of saturated 2-8C carboxylic acids, 1-12C alkyl acrylate and/or methacrylate, of MFI 0.1-30 g/10 min and comonomer content about 25 wt.%; and (c) a thermoplastic polyolefin (35-75) of m.pt. about 115 degrees C, selected from: ethylene homopolymer or copolymer, propylene homopolymer or copolymer, or their mixtures, where the polymer can be grafted with unsaturated carboxylic acid unsaturated dicarboxylic acid, their esters and/or anhydrides (0.1-7, especially 0.5-5), where the amounts of (a) to (c) = 100% and the amount of (a)+(b1) or (a)+(b2) = 50 wt.% on the total amount of polymer mixture. An Independent claim is included for a film or shaped body with a content of polymer mixture as above.