Process for preparing highly transparent plastics for...

C - Chemistry – Metallurgy – 08 – F

Patent

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C08F 22/10 (2006.01) C07C 323/12 (2006.01) G02B 1/04 (2006.01)

Patent

CA 2492206

The invention relates to a method for producing a highly transparent plastic, obtained by the free radical copolymerisation of a blend containing compounds of formulae (I) and (II), in which the respective R1 variables independently of one another represent hydrogen or a methyl group, the respective R2 variables independently of one another represent a linear or branched, aliphatic or cycloaliphatic group or a substituted or unsubstituted aromatic or heteroaromatic group and m and n respectively of one another represent a whole number greater than or equal to 0, where m + n > 0. Said plastic is characterised in that it can be obtained from a blend that contains more than 10 mol %, (in relation to the total quantity of the compounds of formulae (I) and (II)), of the compounds of formula (II), where m+n=2. The invention also relates to the blend of compounds (I) and (II), to a method for producing said blend and to particular uses of the highly transparent plastics.

L'invention concerne un procédé de production de matière plastique hautement transparente, obtenue par copolymérisation radicalaire d'un mélange contenant des composés correspondant aux formules (I) et (II). Dans lesdites formules, les symboles R?1¿ représentent, indépendamment l'un de l'autre, hydrogène ou un groupe méthyle, les symboles R?2¿ représentent indépendamment l'un de l'autre, un groupe aliphatique ou cycloaliphatique linéaire ou ramifié ou bien un groupe aromatique ou hétéroaromatique substitué ou non substitué, et m et n représentent, indépendamment l'un de l'autre, un nombre entier supérieur ou égal à 0, la somme m + n étant supérieure à 0. Ladite matière plastique se caractérise en ce qu'elle peut être obtenue à partir d'un mélange qui contient plus de 10 % en moles, par rapport à la quantité totale des composés des formules (I) et (II), de composés correspondant à la formule (II) où m + n = 2. L'invention concerne également le mélange des composés (I) et (II), des procédés de production d'un tel mélange et des utilisations particulières de telles matières plastiques hautement transparentes.

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