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    • 72. 发明公开
    • Polymers having decreased surface energy
    • 表面能降低的聚合物
    • EP0645425A2
    • 1995-03-29
    • EP94850160.6
    • 1994-09-21
    • ARIZONA CHEMICAL COMPANY
    • Gardiner, Eric S.Geoghegan, John T.
    • C08L23/02C08L67/00C08L67/02
    • C08L23/02C08L23/06C08L23/10C08L23/12C08L67/02C08L93/04Y10T428/31663Y10T428/31855C08L83/00C08L2666/18C08L2666/02C08L23/00
    • A method for forming a polymer with a decreased surface energy. The method comprises the steps of mixing from about 99.5% to about 95.0% of a polymer selected from the group consisting of polyolefin and polyester with from about 0.5% to about 5.0% of a surface modifying agent having the structure R¹-A-Si(R²R³)-O-[Si(R⁴R⁵)-O] n -Si-(R⁶R⁷)-A-R 8, and forming the mix of polymer and additive to a desired form. R¹ and R⁸ are selected from the group consisting of derivatives of aliphatic or aliphatic/aromatic alcohols or mono-acids with a molecular weight of between about 250 to about 600 daltons, and A is selected from the group consisting of -O-, -NH-C(O)-NH-(CH₂)₃-, and -C(O)-NH-(CH₂)₃-. The agent is substantially intimately mixed with the polymer. The present invention also discloses a polymeric material with an increased surface energy prepared according to the method, a release liner, a method for forming injection molded or blow molded polymeric articles where the articles have a non-fugitive release agent, and a film extrusion processing aid comprising an additive for compounding with a polymeric composition being extruded.
    • 形成具有降低的表面能的聚合物的方法。 该方法包括以下步骤:将约99.5%至约95.0%选自聚烯烃和聚酯的聚合物与约0.5%至约5.0%具有结构R 1 -A-Si的表面改性剂( R 2 R 3)-O- [Si(R 4 R 5)-O] n -Si-(R 6 R 6)-A-R 8,并形成聚合物和添加剂的混合物至所需形式。 R 1和R 6选自分子量为约250-约600道尔顿的脂族或脂族/芳族醇或单酸的衍生物,A选自-O - , - NH -C(O)-NH-(CH 2)3 - 和-C(O)-NH-(CH 2)3 - 。 试剂与聚合物基本密切混合。 本发明还公开了根据该方法制备的具有提高的表面能的聚合物材料,释放衬垫,用于形成注塑或吹塑聚合物制品的方法,其中制品具有非挥发性脱模剂和膜挤出加工 其包含用于与被挤出的聚合物组合物配混的添加剂。