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发明授权
CN101613463B 用于耐蒸煮的包装粘合剂的聚酯多元醇 有权

用于耐蒸煮的包装粘合剂的聚酯多元醇
摘要：
本发明涉及一种聚酯多元醇，其原料配方按重量百分比包括：36.2％～42.2％的多元醇、57.8％～63.8％的多元酸，合成所采用的助剂包括抗氧化剂和催化剂；多元醇为混合多元醇，其中包括乙二醇、二乙二醇、新戊二醇和三羟甲基丙烷；多元酸为混合多元酸，其中包括己二酸、间苯二甲酸和苯酐；催化剂为包含硝酸铋与四异丁基钛酸酯或四异丙基钛酸酯的组合物。采用上述技术方案的聚酯多元醇可以作为主剂来制作包装用粘合剂，且制得的粘合剂经熟化后具有非常好的耐蒸煮的性能。
摘要（英）：

The invention relates to a polyester polyol which comprises the raw materials by weight percent: 36.2-42.2% of polyalcohol and 57.8-63.8% of polyprotic acid; auxiliary agents used for synthesizing include antioxidant and catalyst; the polyalcohol is mixed polyalcohol containing ethanediol, diethylene glycol, neopentyl glycol and trimethylolpropane; the polyprotic acid is mixed polyprotic acid containing adipic acid, isophthalic acid and phthalic anhydride; and the catalyst comprises the composition of bismuth nitrate and the 4-isobutyl titanate or 4-isopropyl titanate. By adopting the technical proposal, the obtained polyester polyol can be taken as main agent for manufacturing the packaging adhesive, and the prepared adhesive has very good steam resistant property after being cured.

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