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STRIPPING METHOD FOR AN ARTICLE IN TRANSPARENT POLYMER MATERIAL AND USE FOR MAKING AN ARTICLE IN TRANSPARENT POLYMER SUCH AS AN OPHTHALMIC LENS
STRIPPING METHOD FOR AN ARTICLE IN TRANSPARENT POLYMER MATERIAL AND USE FOR MAKING AN ARTICLE IN TRANSPARENT POLYMER SUCH AS AN OPHTHALMIC LENS
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机译:用于透明聚合物材料的制品的剥离方法以及用于将透明聚合物制成例如眼科镜片的制品的用途
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摘要
The invention concerns a method which consists in: (a) heating the article uniformly in the mould, at a temperature ranging between Tg + 20 °C and Tg + 80 °C, where Tg is the glass transition temperature of the transparent polymer material, without separating the article and the mould parts; and (b) applying an external mechanical force for separating at least one of the mould parts from the article while the latter is at said stripping temperature.
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