首页>
外国专利>
Process for fabricating tough polyethylene terephthalate articles with low gas and organic liquid permeability
Process for fabricating tough polyethylene terephthalate articles with low gas and organic liquid permeability
展开▼
机译:具有低气体和有机液体渗透性的坚韧聚对苯二甲酸乙二醇酯制品的制造方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
Tough articles having low permeability to organic liquids and vapors are melt-fabricated from a blend of polyethylene terephthalate and a toughening polymer, which can be an alpha -olefin/ alpha , beta -unsaturated carboxylic copolymer, an ionomer derived from such copolymer by neutralization with magnesium or zinc ions, or an E/X/Y copolymer in which E is ethylene, X being a lower alkyl acrylate, methacrylate, or ethacrylate, and Y being glycidyl methacrylate or glycidyl acrylate, by observing conditions such that crystallization of polyethylene terephthalate is minimized, such as by maintaining the surfaces of melt-fabricating equipment in contact with the polymer blend below 1000C or by rapidly quenching the article if made at a higher temperature, and by avoiding the presence of nucleating agents in the polymer blend.
展开▼
机译:由聚对苯二甲酸乙二酯和增韧聚合物(可以是α-烯烃/α-β-不饱和羧酸共聚物)的增韧混合物熔融制备坚韧的物品,该混合物对有机液体和蒸汽具有较低的渗透性,该离聚物是通过用镁或锌离子,或E / X / Y共聚物,其中E是乙烯,X是丙烯酸低级烷基酯,甲基丙烯酸酯或乙基丙烯酸酯,Y是甲基丙烯酸缩水甘油酯或丙烯酸缩水甘油酯,其观察条件应使聚对苯二甲酸乙二醇酯结晶为最小化,例如通过保持熔融制造设备与聚合物共混物接触的表面低于100℃或通过在较高温度下将产品快速淬火,以及避免聚合物共混物中存在成核剂。
展开▼