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US 5,688,846 AGranted
Spiro-pyranic compounds endowed with photochromic characteristics
AssigneeMinistero Dell `Universita` E Della Ricerca Scientifica E Tecnologica
InventorsPietro Allegrini, Nereo Nodari, Vincenzo Malatesta, Luciana Crisci
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Abstract
Polymeric compositions comprising a polymer and photochromic compounds belonging to the class of spiro-pyrans, having the general formula (I): ##STR1##
Claims8
A polymeric composition comprising a polymer and a photochromic compound having the formula (I):
- ##STR14## wherein:
- (a) R.sub.1 to R.sub.10 are independently selected from the group consisting of hydrogen;
- linear and branched C.sub.1 -C.sub.5 alkyl groups, optionally having 1-5 halogens;
- hydroxy groups;
- C.sub.1 -C.sub.5 alkoxy groups;
- C.sub.1 -C.sub.5 acyloxy groups;
- carboxy-C.sub.1 -C.sub.5 alkyl groups;
- cyano groups;
- C.sub.2 -C.sub.5 alkenyl groups;
- benzyl groups;
- halogens;
- amine groups;
- mono-(C.sub.1 -C.sub.5)-alkyl amino groups;
- di-(C.sub.1 -C.sub.5)-alkyl amino groups;
- (C.sub.3 -C.sub.10)-cycloalkyl amino groups;
- piperidino, piperazino, and morpholino groups;
- carboxy groups;
- C.sub.2 -C.sub.5 alkenyl carboxy groups;
- aminocarbonyl groups;
- N-(C.sub.1 -C.sub.5)-alkyl-substituted aminocarbonyl groups;
- N,N-di-(C.sub.1 -C.sub.5)-alkyl-substituted aminocarbonyl groups;
- nitro groups;
- sulfonic groups;
- (C.sub.1 -C.sub.5)-alkyl-sulfonate groups;
- aryl-sulfonate groups;
- aryl groups selected from the group consisting of phenyl, biphenyl, and naphthyl groups;
- and carbonyl groups selected from the group consisting of alkyl carbonyls, phenyl carbonyls, naphthyl carbonyls and benzyl carbonyls;
- wherein the halogen is fluorine, chlorine, bromine, or iodine;
- or
- (b) each of the substituents from R.sub.7 to R.sub.10 alternatively represents, jointly with the group adjacent thereto, a ring structure having a formula selected from the following formulas (II) , (III) and (IV):
- ##STR15## and substituents R.sub.1 to R.sub.6 and R.sub.11 to R.sub.29 represent the same groups contained by R.sub.1 to R.sub.10 in part (a).
28 more elements
A polymeric composition comprising:
- (A) at least one polymer selected from the group consisting of polyethylene, ethylene-vinyl acetate copolymer, polyether-amine, polypropylene, polymethyl methacrylate, poly(vinyl alcohol), poly(vinyl butyral), cellulose acetatebutyrate, epoxy, polysiloxanic, urethanic resins, polycarbonate, polydiethylene glycol bis(allyl carbonate), polyamides, polyesters and mixtures thereof;
- (B) a photochromatic compound having the formula (I):
- ##STR16## wherein:
- (a) R.sub.1 to R.sub.10 are independently selected from the group consisting of hydrogen;
- linear and branched C.sub.1 -C.sub.5 alkyl groups, optionally having 1-5 halogens;
- hydroxy groups;
- C.sub.1 -C.sub.5 alkoxy groups;
- C.sub.1 -C.sub.5 acyloxy groups;
- carboxy-C.sub.1 -C.sub.5 alkyl groups;
- cyano groups;
- C.sub.2 -C.sub.5 alkenyl groups;
- benzyl groups;
- halogens;
- amine groups;
- mono-(C.sub.1 -C.sub.5)-alkyl amino groups;
- di-(C.sub.1 -C.sub.5)-alkyl amino groups;
- (C.sub.3 -C.sub.10)-cycloalkyl amino groups;
- piperidino, piperazino, and morpholino groups;
- carboxy groups;
- C.sub.2 -C.sub.5 alkenyl carboxy groups;
- aminocarbonyl groups;
- N-(C.sub.1 -C.sub.5)-alkyl-substituted aminocarbonyl groups;
- N,N-di-(C.sub.1 -C.sub.5)-alkyl-substituted aminocarbonyl groups;
- nitro groups;
- sulfonic groups;
- (C.sub.1 -C.sub.5)-alkyl-sulfonate groups;
- aryl-sulfonate groups;
- aryl groups selected from the group consisting of phenyl, biphenyl, and naphthyl groups;
- and carbonyl groups selected from the group consisting of alkyl carbonyls, phenyl carbonyls, naphthyl carbonyls and benzyl carbonyls;
- wherein the halogen is fluorine, chlorine, bromine, or iodine;
- or
- (b) each of the substituents from R.sub.7 to R.sub.10 alternatively represents, jointly with the group adjacent thereto, a ring structure having a formula selected from the following formulas (II), (III) and (IV):
- ##STR17## and substituents R.sub.1 to R.sub.6 and R.sub.11 to R.sub.29 represent the same groups contained by R.sub.1 to R.sub.10 in part (a).
30 more elements
Dependencies are inferred from the claim text.