公开(公告)号：US5464689A

公开(公告)日：1995-11-07

申请号：US260446

申请日：1994-06-14

申请人： Hiroshi Matsumura ,  Takaaki Shimada ,  Takayuki Hisanaka ,  Yoshiki Ochi ,  Tetsuo Kuwaki ,  Yoshinobu Muta

发明人： Hiroshi Matsumura ,  Takaaki Shimada ,  Takayuki Hisanaka ,  Yoshiki Ochi ,  Tetsuo Kuwaki ,  Yoshinobu Muta

IPC分类号： B29C55/02 ,  B29K67/00 ,  C08J5/18 ,  C08J9/00 ,  C08K3/00 ,  C08L67/00 ,  C08L67/04 ,  C08L101/16

CPC分类号： C08J5/18 ,  C08L67/04 ,  C08J2367/04 ,  Y10T428/249986

摘要： A resin composition which comprises 95 to 60 volume % of a resin mixture of 40 to 85% by weight of a copolymer between D-hydroxybutyrate and D-hydroxyvalerate containing 8 to 15 mol % of D-hydroxyvalerate-derived monomer unit and 60 to 15% by weight of poly-.epsilon.-caprolactone, and 5 to 40 volume % of an inorganic filler or fillers, a porous film produced from the resin composition and having a void volume of 10 to 70%, and a process for producing the porous film are disclosed. The film can be produced by melting the resin composition, forming it into a film, and stretching the film in at least one direction. The porous film can easily be degraded by microorganisms. Examples of the inorganic filler include barium sulfate, with the particle size being preferably 0.1 to 10.0 .mu.m.

摘要翻译： 一种树脂组合物，其包含95至60体积％的40至85重量％的D-羟基丁酸酯和含有8至15摩尔％的D-羟基戊酸酯衍生的单体单元的D-羟基戊酸酯的共聚物的树脂混合物和60至15 重量％的聚ε-己内酯和5〜40体积％的无机填料或填料，由树脂组合物制成的空隙体积为10〜70％的多孔膜，以及多孔膜的制造方法 被披露。 该薄膜可通过熔化树脂组合物，将其形成薄膜并沿至少一个方向拉伸薄膜而制备。 多孔膜容易被微生物降解。 无机填料的实例包括硫酸钡，其粒径优选为0.1-10.0μm。