Patent ID: 7795368

Claim:
Oligomer or polymer comprising at least one structural unit which is selected from the group consisting of silicon cyanurates, [Si 3 (C 3 N 3 O 3 ) 4 ] n ; silicon cyamelurates, [Si 3 (C 6 N 7 O 3 ) 4 ] n ; silyl cyanurates, [Si(R a R b ) 1.5 (C 3 N 3 O 3 )] n ; silyl cyamelurates, [Si(R a R b ) 1.5 (C 6 N 7 O 3 )] n ; silsesquicyanurates, [Si(R a )(C 3 N 3 O 3 )] n ; and silsequicyamelurates, [Si(R a )(C 6 N 7 O 3 )] n ; wherein n represents a whole number between 1 and ∞, preferably 1 to 50,000, and R a and R b are independently selected from group α consisting of hydrogen, halogen, hydroxy, straight-chained or branched-chained (C 1 -C 18 )alkyl residue, (C 3 -C 7 ) cycloalkyl residue, a straight-chained or branched-chained (C 2 -C 18 ) alkenyl residue, a straight-chained or branched-chained (C 2 -C 18 ) alkinyl residue, a straight-chained or branched-chained (C 1 -C 6 ) alkoxy residue, furyl, furanyl, benzofuranyl, thienyl, thiazolyl, benzothiazolyl, thiadiazolyl, imidazolyl, pyrazolyl, triazolyl, tetrazolyl, pyrazinyl, pyrrolidinyl, pyrimidinyl, imidazolinyl, pyrazolidinyl, phenyl, phenoxy, benzyl, benzyloxy, naphthyl, naphthoxy and pyridyl, which can each be substituted with one to five substituents independently selected from group β consisting of a straight-chained or branched-chained (C 1 -C 6 ) alkyl residue, a (C 3 -C 7 ) cycloalkyl residue, a straight-chained or branched-chained (C 1 -C 6 ) alkoxy residue, halogen, hydroxy, amino, di(C 1 -C 6 )alkylamino, nitro, cyano, benzyl, 4-methoxybenzyl, 4-nitrobenzyl, phenyl and 4-methoxyphenyl.