Ultraviolet absorbing material and ultraviolet absorbing plate

Details Ultraviolet absorbing material and ultraviolet absorbing plate Ultraviolet absorbing material and ultraviolet absorbing plate

C - Chemistry, Metallurgy

07

F

C07F 7/10 (2006.01) B05D 5/06 (2006.01) B32B 17/00 (2006.01) B32B 17/10 (2006.01) C03C 17/30 (2006.01) C08G 77/388 (2006.01) C09D 5/32 (2006.01) C09D 183/08 (2006.01) G02B 1/10 (2006.01) G02F 1/1335 (2006.01)

Patent

CA 2258779

An ultraviolet absorbing material prepared by reacting (a) an aminosilane compound of general formula (1) or a derivative thereof wherein R1 is C1-C10 alkylene or -(CH2)m-NH- (wherein m is an integer of 1 to 4); R2's are each independently hydrogen, hydroxyl, halogeno, C1-C10 alkyl or C1-C10 alkoxy, with the proviso that at least one of R2's is C1-C10 alkoxy; and n is an integer of 0 or above with (b) an ultraviolet absorber having a carboxyl group in the molecule in such a way as to form an amide linkage resulting from the above aminosilane compound or derivative thereof. This material can form an ultraviolet absorbing layer and is favorably applicable to ultraviolet- absorbing glass (ultraviolet absorbing plate), optical devices and light modulators.

Matériau absorbant les ultraviolets, préparé en faisant réagir (a) un composé aminosilane ayant la formule générale (1) ou un dérivé de celui-ci, formule dans laquelle R?1¿ représente C¿1?-C¿10? alkylène ou -(CH¿2?)¿m?-NH- [m étant un nombre entier de 1 à 4]; les R?2¿ représentent chacun, indépendamment, hydrogène, hydroxyl, halogéno, C¿1?-C¿10? alkyl ou C¿1?-C¿10? alcoxy, à condition qu'au moins l'un des R?2¿ soit C¿1?-C¿10? alcoxy; et n est un nombre entier égal ou supérieur à 0, avec (b) un absorbeur d'ultraviolets comprenant un groupe carboxyl dans la molécule afin de former une liaison amide résultant du composé aminosilane indiqué ci-dessus ou un dérivé de celui-ci. Ce matériau peut former une couche d'absorption des ultraviolets et est applicable avantageusement sur du verre d'absorption des ultraviolets (plaques d'absorption des ultraviolets), des dispositifs optiques et des modulateurs de lumière.

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