Abstract:
The present invention relates to a group of novel electrochromic materials. More specifically, it relates to electrochromic materials based on either single or two-core viologen systems and the use of these viologen systems as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.
Abstract:
A naphthopyran compound represented by the formula (I) wherein: n1, n2, p, m and q represent an integer; R1, R2 and R4, represent a group selected from halogen, -Ra, -OH, -ORa, -SH, -SRa, -NH2, -NRaRa1, -NRbRc, -CO-Ra, -CO2Ra1, -OC(O)-Rd, -X-(Re)-Y, linear or branched (C1-C18) perfluoroalkyl group, wherein Ra, Ra1, Rb, Rc, X, Y, Re, and Rd are as defined in the description; Z represents a group selected from CO, CS, SO, SO2, CO2, C(O)S, CS2, C(O)NH, C(O)NRa, C(S)NH, C(S)NRa and C=NRa; R3 represents a group selected from halogen, -Ra, linear or branched (C1-18) perfluoroalkyl group -OH, -ORa, -SH, -SRa, -NH2, and -NRaRa1; R6 represents a group selected from -Ra which may be optionally substituted, linear or branched (C1-18) perfluoroalkyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl, which may be optionally substituted; R5 represents a group selected from: halogen, -Ra, linear or branched (C1-18) perfluoroalkyl group, -OH, -ORa, -SH, -SRa, -NH2, -NRaRa1, -CO-Ra, -O-C(O)-Ra and -CO2Ra1; or when q is equal to 2, then two R5 together represents further a group -O-(CH2)q1-O- wherein q1 represents an integer comprised from 1 to 3 inclusive.
Abstract:
3h-nafto[2,1-b]piranos como corantes dicróicos fotocrômicos e artigo óptico que os contém um composto de naftopirano representado pela fórmula (i): onde n~ 1~, n~ 2~, p, q são um número inteiro compreendido de 0 a 5, inclusive; m é um número inteiro compreendido de 0 a 4, inclusive; r1 e r2 representam um grupo selecionado a partir de halogênio, -r~ a~, -oh, - or~ a~, -sh, sr~ a~, nh~ 2~, nr~ a~r~a~ ~ 1~, nr~ b~ ~ c~,-co-r~ a~, e ~co~ 2~r~ a~ ~ 1~ , onde r~ a~, r~ a~ ~ 1~, r~ b~ e r~ c~ são como definidos no relatório descritivo; r~ 3~ representa um grupo selecionado a partir de halogênio, - r~ a~, -oh, or~ a~, sh, -sr~ a~, nh~ 2~, e -nr~ a~r~ a~ ~1~; r~ 4~ representa um grupo selecionado a partir de halogênio, -r~ a~, -oh, -or~ a~, sh, -sr~ a~, nh~ 2~, nr~ a~r~ a~ ~ 1~, co-r~ a~, e -co~ 2~r~ a~~ 1; r~ 5~ representa um grupo selecionado a partir de: halogênio, -r~ a~ , -oh, -or~ a~, -sh, -sr~ a~, nh~ 2~, e -nr~ a~r~ a~ ~ 1~, onde r~ a~ e r~ a~ ~ 1~ são como definidos mais acima, ou quando q for igual a 2, então dois r~ 5~ juntos re- presentam adicionalmente um grupo -o-(ch~ 2~)~ q~~ 1~- o-, onde qi representa um número inteiro compreendido de 1 a 3, inclusive.
Abstract:
The present invention relates to a group of novel electrochromic materials. More specifically, it relates to electrochromic materials based on either single or two-core viologen systems and the use of these viologen systems as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.
Abstract:
A naphthopyran compound represented by the formula (I) wherein: n1, n2, p, m and q represent an integer; R1, R2 and R4, represent a group selected from halogen, -Ra, -OH, -ORa, -SH, -SRa, -NH2, -NRaRa1, -NRbRc, -CO-Ra, -CO2Ra1, -OC(O)-Rd, -X-(Re)-Y, linear or branched (C1-C18) perfluoroalkyl group, wherein Ra, Ra1, Rb, Rc, X, Y, Re, and Rd are as defined in the description; Z represents a group selected from CO, CS, SO, SO2, CO2, C(O)S, CS2, C(O)NH, C(O)NRa, C(S)NH, C(S)NRa and C=NRa; R3 represents a group selected from halogen, -Ra, linear or branched (C1-18) perfluoroalkyl group -OH, -ORa, -SH, -SRa, -NH2, and -NRaRa1; R6 represents a group selected from -Ra which may be optionally substituted, linear or branched (C1-18) perfluoroalkyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl, which may be optionally substituted; R5 represents a group selected from: halogen, -Ra, linear or branched (C1-18) perfluoroalkyl group, -OH, -ORa, -SH, -SRa, -NH2, -NRaRa1, -CO-Ra, -O-C(O)-Ra and -CO2Ra1; or when q is equal to 2, then two R5 together represents further a group -O-(CH2)q1-O- wherein q1 represents an integer comprised from 1 to 3 inclusive.
Abstract:
A naphthopyran compound represented by the formula (I) wherein: n1, n2, p, m and q represent an integer; R1, R2 and R4, represent a group selected from halogen, -Ra, -OH, -ORa, -SH, -SRa, -NH2, -NRaRa1, -NRbRc, -CO-Ra, -CO2Ra1, -OC(O)-Rd, -X-(Re)-Y, linear or branched (C1-C18) perfluoroalkyl group, wherein Ra, Ra1, Rb, Rc, X, Y, Re, and Rd are as defined in the description; Z represents a group selected from CO, CS, SO, SO2, CO2, C(O)S, CS2, C(O)NH, C(O)NRa, C(S)NH, C(S)NRa and C=NRa; R3 represents a group selected from halogen, -Ra, linear or branched (C1-18) perfluoroalkyl group -OH, -ORa, -SH, -SRa, -NH2, and -NRaRa1; R6 represents a group selected from -Ra which may be optionally substituted, linear or branched (C1-18) perfluoroalkyl, cycloalkyl, heterocycloalkyl, aryl, and heteroaryl, which may be optionally substituted; R5 represents a group selected from: halogen, -Ra, linear or branched (C1-18) perfluoroalkyl group, -OH, -ORa, -SH, -SRa, -NH2, -NRaRa1, -CO-Ra, -O-C(O)-Ra and -CO2Ra1; or when q is equal to 2, then two R5 together represents further a group -O-(CH2)q1-O- wherein q1 represents an integer comprised from 1 to 3 inclusive.