Method for the manufacture of a polybranched organic/ inorganic hybrid polymer suitable as a light protective additive in a total process comprising a sol-gel process in which hydrolysable metal compounds with functional amino groups are reacted by means of hydrolysis and condensation, characterized in that the total process comprises at least one additional step in which one or more of said functional amino groups are reacted with an aromatic carboxylic acid derivative comprising a group with a proton donating ability in ortho position to the carboxylic acid derivative group, while the sol-gel process comprises at least two steps in a defined chronological sequence, i) the first step being the formation of a core under controlled hydrolysis and condensation with a silane of formula: NH 2 -B- Si(-Y) 3 Where B is a linkage group chosen among saturated or unsaturated C 1 -C 18 alkylene, substituted or unsusbstituted arylene, in which the carbon chains may include one or more branches and/ or one or more carbon atom may be substituted by the elements oxygen, nitrogen, sulphur, silicon, and boron, while Y is a hydroysable residue, ii) in at least one subsequent step UV absorbing branches are developed by reacting two groups B-NH2 with one carboxylic acid or carboxylic acid derivative comprising one of said chemical structures: where R 1 - R 4 are chosen among groups such as hydrogen, unsubstituted saturated or unsaturated C 1 -C 24 -alkyl, substituted saturated or unsaturated C 1 -C 24 -alkyl, substituted or unsubstituted aryl, halogen, hydroxyl, substituted or unsubstituted amine, aliphatic or aromatic carbonyl, while one or more carbon atoms in the carbon chains of said compounds can be substituted by one or more element chosen among oxygen, nitrogen, sulphur, phosphorus, silicon, and boron, or where R 1 -R 4 are chosen among the condensation products or addition products of one or more types of chemical compositions such as acids, alcohols, phenols, amines, aldehydes, or epoxides and where R 1 -R 4 can form substituted or unsubstituted aromatic ring structures that together with the existing aromatic ring form a larger ring structure than phenyl, while M, Z are chosen among O, N, S and where R 5 -R 7 are chosen among R1-O, R 1 R 2 N or R 1 -S. i) the first step being the formation of a core under controlled hydrolysis and condensation with a silane of formula: NH 2 -B- Si(-Y) 3 Where B is a linkage group chosen among saturated or unsaturated C 1 -C 18 alkylene, substituted or unsusbstituted arylene, in which the carbon chains may include one or more branches and/ or one or more carbon atom may be substituted by the elements oxygen, nitrogen, sulphur, silicon, and boron, while Y is a hydroysable residue, ii) in at least one subsequent step UV absorbing branches are developed by reacting two groups B-NH2 with one carboxylic acid or carboxylic acid derivative comprising one of said chemical structures: where R 1 - R 4 are chosen among groups such as hydrogen, unsubstituted saturated or unsaturated C 1 -C 24 -alkyl, substituted saturated or unsaturated C 1 -C 24 -alkyl, substituted or unsubstituted aryl, halogen, hydroxyl, substituted or unsubstituted amine, aliphatic or aromatic carbonyl, while one or more carbon atoms in the carbon chains of said compounds can be substituted by one or more element chosen among oxygen, nitrogen, sulphur, phosphorus, silicon, and boron, or where R 1 -R 4 are chosen among the condensation products or addition products of one or more types of chemical compositions such as acids, alcohols, phenols, amines, aldehydes, or epoxides and where R 1 -R 4 can form substituted or unsubstituted aromatic ring structures that together with the existing aromatic ring form a larger ring structure than phenyl, while M, Z are chosen among O, N, S and where R 5 -R 7 are chosen among R1-O, R 1 R 2 N or R 1 -S.