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    • 2. 发明申请
    • PLASTICIZER COMPOSITION FOR DEGRADABLE POLYESTER FILTER TOW
    • 用于可降解聚酯过滤器的塑化剂组合物
    • WO2013019616A2
    • 2013-02-07
    • PCT/US2012/048547
    • 2012-07-27
    • R. J. REYNOLDS TOBACCO COMPANYSEBASTIAN, Andries DonSEARS, Stephen BensonJACKSON, Thaddeus J.DOOLY, Grady Lance
    • SEBASTIAN, Andries DonSEARS, Stephen BensonJACKSON, Thaddeus J.DOOLY, Grady Lance
    • A24D3/08
    • A24D3/08A24D3/068A24D3/14
    • A filter material adapted for use as a filter element of a smoking article is provided, the filter material being in the form of a fibrous tow that includes a plurality of filaments of a degradable polyester and a plasticizer composition applied thereto, the plasticizer composition and the degradable polyester having a Relative Energy Difference calculated using Hansen Solubility Parameters of less than about 1.3. Exemplary degradable polyesters include polyglycolic acid, polylactic acid, polyhydroxyalkanoates, polycaprolactone, polybutylene succinate adipate and copolymers or blends thereof. Exemplary plasticizer compositions include one or more of dimethylisosorbide, propylene carbonate, methylbenzyl alcohol, glycerol carbonate acetate, glycerol carbonate ethyl ether, and mixtures thereof, optionally in combination with triacetin. Filter elements and smoking articles, such as cigarettes, that contain the filter material are also provided.
    • 提供适于用作吸烟制品的过滤元件的过滤材料,过滤材料为纤维丝束的形式,其包括多根可降解聚酯长丝和应用于其中的增塑剂组合物,增塑剂组合物和 使用Hansen溶解度参数计算的具有相对能量差的可降解聚酯小于约1.3。 示例性的可降解聚酯包括聚乙醇酸,聚乳酸,聚羟基链烷酸酯,聚己内酯,聚丁二酸丁二醇酯己二酸酯及其共聚物或共混物。 示例性的增塑剂组合物包括任选与三醋精组合的一种或多种二甲基异山梨醇,碳酸亚丙酯,甲基苄醇,甘油碳酸酯乙酸酯,甘油碳酸酯乙醚及其混合物。 还提供过滤元件和吸烟物品,例如含有过滤材料的香烟。