发明名称 |
ANTI-MICROBIAL POLYMERIC FILM AND METHOD OF MANUFACTURE OF SAID FILM |
摘要 |
A method of manufacture of an anti-microbial polymeric film comprising coextruding a polymeric substrate layer comprising a first layer of a first polymeric material and a second layer of a second polymeric material wherein the crystalline melting temperature (TM2) of said second polymeric material is lower than the crystalline melting temperature (TM1) of the first polymeric material; stretching the coextruded substrate in a first direction; optionally stretching the substrate layer in a second, orthogonal direction; disposing on the surface of the polymeric second layer a composition comprising a particulate antimicrobial compound and a liquid vehicle, and preferably also a surfactant; and heat-setting the stretched film at a temperature above the crystalline melting temperature (TM2) of the second polymeric material but below the crystalline melting temperature (TM1) of the first polymeric material; wherein the composition is applied to the polymeric second layer after the coextrusion step but before the heat-setting step; such that in the final film said second layer comprises said anti-microbial compound in an amount of from about 1 to about 80% by weight of said polymeric material of the second layer is described. Anti-microbial films are also described. |
申请公布号 |
KR20110059564(A) |
申请公布日期 |
2011.06.02 |
申请号 |
KR20107028836 |
申请日期 |
2009.06.10 |
申请人 |
DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP |
发明人 |
ROBINSON JULIAN NEAL;EVESON ROBERT W.;RAKOS KARL;BROWN DAVID;SYMONDS JACKIE;STEPHENSON DEBBIE A. |
分类号 |
B29D7/01;B29C55/02;B29C71/00;B65D81/28 |
主分类号 |
B29D7/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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