MIDDLE LAYER FOR LAMINATED GLASS AND LAMINATED GLASS

PROBLEM TO BE SOLVED: To ensure good moisture resistance by which whitening is suppressed, and sufficient adhesive power adjusting effect, superior transparency, weather resistance and adhesiveness are obtained by incorporating a polyvinyl acetal resin (C), a plasticizer, a metallic salt of a specified carboxylic acid and a specified carboxylic acid. SOLUTION: A metallic salt (A) of a 1-4C carboxylic acid and a 5-28C carboxylic acid or a metallic salt (B) of a 5-28C carboxylic acid and a 1-4C carboxylic acid are used. A polyvinyl butyral resin having 60-70% degree of butyral formation and a polymerization degree of 1,000-2,000 is suitable for use as a resin C. The plasticizer is, e.g. dihexyl adipate and the amount of the plasticizer is preferably 20-60 pts.wt. based on 100 pts.wt. resin C. The metallic salt A is preferably magnesium acetate or magnesium propionate and the metallic salt B is preferably magnesium 2-ethylbutyrate or magnesium 2- ethylhexanoate.