| 摘要 |
PURPOSE:To obtain a water-base self-adhesive composition having excellent adhesiveness to polyolefin and transparency, by incorporating an emulsion of a specified rosin-base tackifier resin into a (meth)acrylate polymer emulsion. CONSTITUTION:An emulsion of a resin having a softening point of 110-150 deg.C, comprising at least one tackifier resin selected from a polyhydric alcohol ester of a rosin-modified phenolic resin or a polymeric rosin, a polyhydric alcohol ester of a partially maleated disproportionated rosin, and a polyhydric alcohol ester of a partially fumarated disproportionated rosin, is mixed with an emulsion of an acrylic polymer consisting mainly of a (meth)acrylate, thus giving an objective water-base self-adhesive composition. The suitable amount of the former is 5-30pts.wt., on a solid basis, based on 100pts.wt. of the latter.
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