Patent EP0315224A1 successfully refreshed from Google Patents.
EP0315224A1
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EP
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Doll or other children's toy with photochromatic characteristics and the method for its preparation
Assignee: Enichem Sintesi SpA
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Filing: 1988-07-28
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Granted: —
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Expires: 2008-07-28
Abstract
Abstract A doll or other children's toy with photochromatic characteristics are formed from an opaque organic polymer material containing on its surface or incorporated within its material at least one photochromatic organic compound chosen from the classes of spirooxazines and spiropiranes. The methods for preparing said photochromatic objets are described.
Inventors
- 👤 Enrico Traverso
- 👤 Luciana Crisci
- 👤 Nicola Casilli
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 05:42
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/45; C08K5/46; C08K5/47; A; A63; A63H; A63H9/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3415; C08K5/3417; C08K5/35; C09; C09B; C09B57/00; D; D06; D06P; D06P1/00; D06P1/90; D06P3/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
49 words
A doll or other children's toy of opaque organic polymer material, containing on its surface or incorporated within its material at least one photochromatic compound chosen from the class of the spiro-oxazines of Formula (I) or from the class of the spiropiranes of Formula (II), (III), (IV) or (V).
Claim 2
Dependent Claim
49 words
A doll or other children's toy of opaque organic polymer material, containing on its surface or incorporated within its material at least one photochromatic compound chosen from the class of the spiro-oxazines of Formula (I) or from the class of the spiropiranes of Formula (II), (III), (IV) or (V).
Claim 3
Dependent Claim
26 words
A doll or other children's toy according to claim 1, characterized in that the photochromatic organic compound is chosen from the class of the spiro-oxazines (I).
Claim 4
Dependent Claim
41 words
A doll or other children's toy as claimed in claim 2, characterized in that said spiro-oxazines (I) are: 1,3,3,4,5 or 1,3,3,5,6-pentamethyl spiro (indoline-2,3′-[3H]-naphtho-(2,1-b)-(1,4)-oxazine); 1,3,3-trimethyl spiro (indoline-2,3′-[3H]-naphtho-(2,1-b)-(1,4)-oxazine); 1,3,3-trimethyl spiro (indoline-6′-(1-piperidyl)-2,3′-[3H]-naphtho-(2,1-b)-(1,4)-oxazine); 1,3,3-trimethyl spiro (indoline-6′-(1-morpholyl)-2,3′-[3H]-naphtho-(2,1-b)-(1,4)-oxazine); 1,3,3,4,5- or 1,3,3,5,6-pentamethyl spiro (indoline-6′-(1-piperidyl)-2,3′-[3H]-naphtho-(2,1-b)-(1,4)-oxazine); and 1,3,3-trimethyl spiro (indoline-6′-(1-piperidyl)-9′-(methoxy)-2,3′-[3H]-naphtho-(2,1-b)-(1,4)-oxazine).
Claim 5
Dependent Claim
36 words
A doll or other children's toy according to claim 1, characterized by containing said photochromatic compound incorporated in the material and in a quantity of from 0.01 to 1% by weight with respect of the polymer.
Claim 6
Dependent Claim
34 words
A doll or other children's toy according to claim 4, characterized in that the said photochromatic compound is present in a quantity of from 0.02 to 0.4% by weight with respect to the polymer.
Claim 7
Dependent Claim
29 words
A doll or other children's toy according to claim 1, characterized in that the polymer material is chosen from rigid polyvinylchloride, plasticized polyvinylchloride, polyurethane, polyolefines, polystirene and elastomers (rubbers).
Claim 8
Dependent Claim
25 words
A doll or other children's toy according to claim 6, characterized in that said polymer material is chosen from plasticized polyvinylchloride, polyethylene and elastomers (rubbers).
Claim 9
Dependent Claim
33 words
A doll or other children's toy according to claim 1, characterized in that it additionally contains one or more white or coloured inorganic pigments, white or coloured organic pigments and opacizing inorganic masses.
Claim 10
Dependent Claim
51 words
Process for the preparation of a doll or other children's toy according to claims 1 to 8, characterized in that at least one photochromatic organic compound with Formula from (I) to (V) is incorporated in an article of opaque polymer material, or is applied to the surface of the article itself.
Claim 11
Dependent Claim
63 words
Process according to claim 9, characterized in that at least one photochromatic compound with Formula from (I) to (V) is mixed with an opaque polymer material, or relative prepolymer, in a quantity of from 0.01 to 1% and preferably from 0.02 to 0.4% by weight with respect to the polymer or prepolymer and the mixture thus obtained is transformed into the finished object.
Claim 12
Dependent Claim
59 words
Process according to claim 9, characterized in that at least one photochromatic compound with Formula from (I) to (V) is applied to the surface of the object formed of opaque polymer material in the form of a varnish which contains said photochromatic compound in a quantity of from 0.01 to 1% and preferably from 0.02 to 0.4% by weight.
Claim 13
Dependent Claim
66 words
Process according to claim 9, characterized in that at least one organic photochromatic compound with Formula from (I) to (V) is applied to the surface of the object formed of opaque polymer material by impregnation of the object itself with a solution of the photochromatic compound in an organic solvent at a concentration of from 0.01 to 5% and preferably from 0.05 to 3% by weight.
Claim 14
Dependent Claim
33 words
Process according to claim 9, characterized in that at least a photochromatic compound with Formula from (I) to (V) is thermally transferred onto the surface of the object formed of opaque polymer material.
References Cited (Backward Citations)
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