发明名称 |
METHOD OF MANUFACTURING OF A CHOLESTERIC LAYER |
摘要 |
The invention pertains to a method of manufacturing a layer of a cholesterically ordered polymer material, in which the material is oriented in such a way that the axis of the molecular helix of the cholesterically ordered material extends transversely to the layer, wherein the method comprises the steps: a) providing a layer comprising a cholesterically ordered mixture of a low-molecular weight polymerizable material and a high-molecular weight material, which high-molecular weight material comprises a quantity of a convertible group, which in its non-converted and in its converted state determines the pitch or the material to a different extent, the conversion of said high-molecular weight material being inducible by radiation, and the layer absorbs said radiation; b) irradiating the layer to convert at least a part of the convertible groups it the irradiated parts of the layer; c) letting at least the low-molecular weight material reorient to form the required helical structure; d) at least partially polymerizing and/or cross-linking the low-molecular weight material with itself and/or with the high-molecular weight material to freeze in the formed structure. |
申请公布号 |
EP1561134(A1) |
申请公布日期 |
2005.08.10 |
申请号 |
EP20030809815 |
申请日期 |
2003.10.07 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
WEGH, RENE, T.;LUB, JOHAN |
分类号 |
C09K19/38;G02B5/30;G02F1/1335;(IPC1-7):G02B5/30;C09K19/02 |
主分类号 |
C09K19/38 |
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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