PACKAGE AND PRESERVING METHOD FOR SOLID BODY OF CARBOXYLIC ANHYDRIDE MODIFIED CHLORINATED POLYOLEFIN

摘要

PROBLEM TO BE SOLVED: To provide a package and preserving method for the solid body of carboxylic anhydride modified chlorinated polyolefin used as paint or a binder resin for primer to protect or dress polyolefin base resin, which can suppress the change in physical properties even after long storage. SOLUTION: This package for the solid body of carboxylic anhydride modified chlorinated polyolefin is formed by being covered with a composite film which has a water vapor permeability of 1.5 g/m2 for less than 24 hours measured by ASTM D895 ('Standard Test Method Water Vapor Permeability of Packages') (measurement condition; temperature 37.8±1.1 deg.C, relative humidity 90±2%) and the solid body is perserved therewith.