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公开(公告)号:US20130096194A1
公开(公告)日:2013-04-18
申请号:US13692391
申请日:2012-12-03
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Aizoh Sakurai , Kana Akainaga , Naoyuki Toriumi , James S. Mrozinski , Matthew J. Schmid
IPC: A61K47/30
CPC classification number: A61K47/30 , B29C55/005 , B29K2067/00 , B29K2067/046 , B29K2105/04 , B29K2995/006 , C08J9/0023 , C08J9/0066 , C08J9/26 , C08J9/283 , C08J2201/046 , C08J2367/04 , C08K3/34 , C08K5/0083 , C08K5/11
Abstract: The present disclosure describes a method for forming microporous and antimicrobial articles. The method comprises preparing an initial composition containing a semicrystalline polylactic acid material, a nonpolymeric aliphatic ester diluent, and a nucleating agent. The initial composition is heated to form a melt blended composition. Upon cooling, the melt blended composition phase separates into a composition having two continuous phases. A network of interconnected micropores may be formed by stretching the composition, by removing at least a portion of the nonpolymeric aliphatic ester diluent from the composition, or a combination thereof.
Abstract translation: 本公开描述了形成微孔和抗微生物制品的方法。 该方法包括制备含有半结晶聚乳酸材料,非聚合脂族酯稀释剂和成核剂的初始组合物。 将初始组合物加热以形成熔融共混组合物。 在冷却时,熔融共混组合物相分离成具有两个连续相的组合物。 通过从组合物中除去至少一部分非聚合脂族酯稀释剂或其组合,可以通过拉伸组合物形成相互连接的微孔网。