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Application filed by Ustav Makromolekularni ChemiefiledCriticalUstav Makromolekularni Chemie
Priority to CS673088ApriorityCriticalpatent/CS274968B2/en
Publication of CS673088A2publicationCriticalpatent/CS673088A2/en
Publication of CS274968B2publicationCriticalpatent/CS274968B2/en
The solution concerns a method of production of plano-convex lenses, which consists in the fact that a mixture of monomers with polymer catalyser, like for example diisopropylpercarbonate or benzoinethylether, is applied on a bearing plate with a horizontal planar surface, delimited by a circular edge. Then this mixture is polymerised and when the polymerization is terminated the lens is separated from the bearing plate.
CS673088A1988-10-111988-10-11Method of plano-convex lens production
CS274968B2
(en)
Composite polyesther belts which are used especially as basis for magnetic material for recording and magnetic materials for recording obtained by this process
Solid object, partic. contact lens - prepd. from polymer with simultaneous inter-penetration networks formed from crosslinked hydrophilic and hydrophobic polymers