ANTI-BLOCKING AGENTS AND COMPOSITIONS FOR SYNTHETIC RESIN FILMS

摘要

An anti-blocking agent for synthetic resin films comprising secondary particles of hydrotalcites having an average secondary particle diameter falling in the range of 1 to 8 .mu.m, said hydrotalcites being represented by the following formula (1) in which M2+ stands for Mg2+ or Mg2+ and zn2+, An- stands for an anion of n valence, and x and m stand each for a positive number satisfying the following formula: