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专利名称：Aqueous casting solutions for the
production of light-polarising foils or filmsbased on polyvinyl alcohol
发明人：CLAUSSEN, UWE, DR.,KROECK, FRIEDRICH W.,
DR.
申请号：EP122772.0申请日：191209公开号：EP0374654B1公开日：19950125
摘要：gie\ßl\ösungen to manufacture lichtpolarisierender films or sheetscontaining, based on the sum of the weights of (a) + (b) + (c) + (d) = 100% by weight, (a)30 - 95 wt.%, preferably 40 to 75 wt.% water, (b) 1 - isbn wt.%, preferably 4 to 30 wt. -%,vinylalkoholpoly\mer, (c) 0.01 to 5 wt.%. preferably 0.02 to 2% by weight,
dichroitischen dye, (d) 0.1 to 75 wt.%, preferably 0.5 to 50% by weight.-% of one or morelinks from the group of aliphatic polyols with 2 to 6 c \atomen, aliphatic
etherpolyole with 2 to 6 c atoms, c\₁ - \c\₄ - alkylether aliphatic polyolswith 2 to 6 c \atomen, aliphatic aminoalkohole with 2 to 4 c atoms, amides ofaliphatic c\₁ - c\₄ - carbons\äur en, and possibly an additional c\₁ -c\₄ - monoalkohol, and, if necessary, (e) otherfor gie\ßl\ösungen usualadditives, such as stabilizers, with use of glycerol alone the weight glycerol:vinyl\alkoholpolymer about 0.2 to 1: 1, preferably 0.3 to 0.5: 1.
申请人：BAYER AG,BAYER AG,BAYER AG
地址：DE
国籍：DE
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