Liquid mixtures based on ethylene polymers, a process for producing them and a coating or bonding process in which they are used

摘要

PCT No. PCT/FR86/00146 Sec. 371 Date Dec. 16, 1986 Sec. 102(e) Date Dec. 16, 1986 PCT Filed Apr. 29, 1986 PCT Pub. No. WO86/06398 PCT Pub. Date Nov. 6, 1986.The liquid mixtures according to the invention comprise at least one ethylene polymer (A) and at least one solvent (B), and are characterized in that: (a) the ethylene polymer (A) comprises at least one terpolymer having a fluidity index comprised between 2 and 500 dg/min and comprising: from 83 to 95.7 moles % of units derived from ethylene, from 4 to 15 moles % of units derived from at least one alkyl acrylate or methacrylate, the alkyl group having from 1 to 6 atoms of carbon, and from 0.3 to 2 moles % of units derived from maleic anhydride, (b) the solvent (B) is selected from amongst aliphatic, cycloaliphatic and aromatic hydrocarbons having from 5 to 12 atoms of carbon, dechlorinated solvents and esters. The process comprises in a first step the dissolution of polymer (A), by stirring, in the solvent (B) at a temperature T (expressed in Celcius degrees) such that: 35