shi - ru medicine null of polyester type

摘要

PURPOSE:To obtain the title sealant which has an excellent adhesive force, does not cause the sealed part to form longitudinal wrinkles, etc., and does not cause exudation, by mixing a specified solvent which can attack the material of the part to be sealed with a specified solvent which does not attack said material. CONSTITUTION:100pts.wt. solvent (attacker) which can attack a polyester film as the material of the part to be sealed and has a b.p. of 40-90 deg.C and a viscosity of 0.3-2.0cP (25 deg.C), such as methylene chloride or ethylene chloride, is mixed with 10-100pts.wt. solvent (diluent) which does not attack the polyester film as the material of the part to be sealed and has a b.p. of 30-85 deg.C and a viscosity of 0.2-0.5cP (25 deg.C), such as methyl acetate.