| 摘要 |
PURPOSE:To provide the title composition uniform in the dispersion of organic foaming agent. capable of giving foams having uniformly dispersed cells with their size uniform and good in appearance, comprising PE, an organic foaming agent, solid paraffin and an oil at specified proportion. CONSTITUTION:The objective composition comprising (A) 100 pts.wt. of PE, (B) 0.2-1.5 pts.wt. of an organic foaming agent (pref. a compound solid at ordinary temperature and generating gas when heated. e.g. dinitrosopentamethylenetetramine), (C) 0.2-1.5 pts.wt. of solid paraffin (pref. an oligomer 1000-10000 in average molecular weight and 100-120 deg.C in softening point) and (D) 0.1-1.0 pt.wt. of an oil (pref. spindle oil). |
