ADHESIVE FOR HIGH-SPEED CAN MAKING

摘要

PURPOSE:To obtain an adhesive which enable high-speed can making by using a specific nylon 12 resin as a major component and a nucleating agent to increase the crystallization speed of the nylon 12 resin and raise the crystallization temperature. CONSTITUTION:The objective adhesive is composed of (A) 100 pts.wt. of a nylon 12 resin having a relative viscosity of 1.6 to 3.6, measured with 1% concentration polymer solution in 98% sulfuric acid at 25 deg.C, and (B) 0.005 to 1 pt.wt. of a nucleating agent, preferably a silicic acid nucleating agent, thus having less than 200 seconds of crystallization time from the start of crystallization to the time to reach the maximum heat release value, when isothermally crystallized at the temperature 10 deg.C lower than the melting point of component A according to the differential scanning thermal analysis.