and where -A2 comprises monomer units selected from CH2═C(CH3)COOC1-4-alkyl, CH2═C(H)COOC1-4-alkyl hydroxyethylene methacrylate, 2-acrylamido-2-methylpropanesulphonic acid, trimethylolpropane triacrylate and pentaerythritol tetraacrylate or mixtures thereof. and for n=2 the individual radicals A may be identical or different, and -A2 is...
source Optical Component patent applications http://www.freshpatents.com/-dt20131121ptan20130308189.php
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source Optical Component patent applications http://www.freshpatents.com/-dt20131121ptan20130308189.php
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