| 摘要 |
PURPOSE:To obtain the titled sealant flexible and impact-resistant at low temperatures with improved gun extrudability and adhesivity to duct itself, by blending polyolefin polymer, tackifier and natioxidant in a specific proportion. CONSTITUTION:The objective sealant can be obtained by blending (A) 100pts.wt. of a polyolefin polymer (e.g., normal PP), (B) 20-200pts.wt. of a tackifier (e.g., cumarone-indene resin) and (C) 0.1-5pts.wt. of an antioxidant (e.g., octylated diphenylamine).
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