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    • 2. 发明申请
    • PROCESS FOR PRODUCING A NON-TRANSPARENT MICROVOIDED SELF-SUPPORTING FILM
    • 生产非透明微胶囊自支撑膜的方法
    • WO2008040699A1
    • 2008-04-10
    • PCT/EP2007/060373
    • 2007-10-01
    • AGFA-GEVAERTQUINTENS, Dirk
    • QUINTENS, Dirk
    • G03C1/795B41M5/41B41M5/50C08J5/18C08L67/02
    • G03C1/7954B29C55/06B29C55/143B29K2033/18B29K2067/00B29K2105/0032B29K2105/0088B29K2105/04B29K2711/12B29K2995/0025B41M5/36B41M5/41B41M5/508B41M2205/02B41M2205/12C08J5/18C08J2367/02C08K3/013C08L25/12C08L67/02Y10S430/165Y10T156/10Y10T428/24802Y10T428/24893Y10T428/249953Y10T428/249978Y10T428/249992Y10T428/254Y10T428/31786Y10T428/31855C08L2666/06C08L35/00C08L25/00
    • A process for producing a non-transparent microvoided self- supporting film comprising the steps of: i) mixing at least one linear polyester having together monomer units consisting essentially of terephthalate, isophthalate and aliphatic dimethylene with the molar ratio of isophthalate monomer units to terephthalate monomer units being at least 0.02 to provide a linear polyester matrix; at least one amorphous high polymer with a higher glass transition temperature than the glass transition temperature of said linear polyester matrix and/or at least one crystalline high polymer having a higher melting point than the glass transition temperature of said linear polyester matrix; and optionally at least one ingredient from the group of ingredients consisting of inorganic opacifying pigments, whitening agents, UV-absorbers, light stabilizers, antioxidants, flame retardants and colorants in a kneader or an extruder; ii) forming the mixture produced in step i) in a thick film followed by quenching; iii) longitudinally stretching the thick film at a stretching force of >4 N/mm 2 to at least twice the initial length; and iv) transversly stretching the longitudinally stretched film from step (iii) to at least twice the initial width; the use of the non-transparent microvoided axially stretched film produced according to the above-described process as a synthetic paper; and the use of the non-transparent microvoided axially stretched film produced according to the above-described process image recording elements.
    • 一种制备不透明微孔自支撑膜的方法,包括以下步骤:i)将至少一种线性聚酯与单体单元单体组成的单体单元与对苯二甲酸酯单体的摩尔比基本上由对苯二甲酸酯,间苯二甲酸酯和脂肪族二亚甲基组成的单体单体混合 单元为至少0.02以提供线性聚酯基质; 至少一种具有比所述线性聚酯基质的玻璃化转变温度高的玻璃化转变温度和/或具有比所述线性聚酯基体的玻璃化转变温度更高的熔点的至少一种结晶高分子的至少一种无定形高分子; 和任选的至少一种成分,由捏合机或挤出机中的无机遮光颜料,增白剂,紫外线吸收剂,光稳定剂,抗氧化剂,阻燃剂和着色剂组成的成分组成; ii)在厚膜中形成步骤i)中制备的混合物,随后淬火; iii)以> 4N / mm 2的拉伸力将厚膜纵向拉伸至初始长度的至少两倍; 和iv)将从步骤(iii)的纵向拉伸膜横向拉伸至初始宽度的至少两倍; 使用根据上述方法制造的非透明微孔轴向拉伸膜作为合成纸; 以及使用根据上述处理图像记录元件制造的非透明微孔轴向拉伸膜。