| 摘要 |
PURPOSE:To obtain a pressure-sensitive adhesive which does not lose its adhesiveness even when highly concentrated alcohol acts upon it, is good in keying, does not swell and is useful to bond the openable label at the takeout opening of a wet tissue container by mixing a natural rubber with a liquid isoprene rubber and a tackifying resin. CONSTITUTION:100 pts.wt. natural rubber is mixed with, desirably, 20-200 pts.wt. liquid isoprene rubber and, desirably, 50-200 pts.wt. tackifying resin such as a petroleum, rosin or terpene resin and, optionally, an antioxidant and an ultraviolet absorber. |
