Novel radiation sensitive compounds and radiation sensitive compositions containing the same

Claim 2

A pyrylium-type salt having the formula: ##STR20## wherein: each of X 1 and X 2 , which may be the same or different, represents oxygen, sulfur, or selenium; each of Y 1 and Y 2 , which may be the same or different, represents the atoms necessary to complete a heterocyclic unsaturated ring nucleus having 6 or 10 ring atoms including a selenium, sulfur or oxygen hetero ring atom and 5 or 9 carbon ring atoms; each of R 1 , R 2 , and R 3 , which may be the same or different, represents hydrogen, halogen, cyano, nitro, alkyl having 1 to about 4 carbon atoms in the alkyl group, or aryl, with the proviso that at least one of R 1 , R 2 , or R 3 represents phenyl or alkoxyphenyl; and Z.sup.⊖ represents an anionic function.

Claim 3

A pyrylium-type salt as described in claim 1 wherein: each of R 1 -R 3 , which may be the same or different, represents hydrogen, alkyl, phenyl or alkoxyphenyl; the heterocyclic ring containing Y 1 represents a group having one of the following structures: ##STR21## and wherein the heterocyclic ring containing Y 2 represents a group having one of the following structures: ##STR22## wherein each of X 1 and X 2 , which may be the same or different, represents oxygen or sulfur; Z represents an anionic function; and each of R 4 , R 5 , R 6 , R 7 , R 8 , and R 9 , which may be the same or different, represents hydrogen, alkyl having 1 to 4 carbon atoms in the alkyl group, phenyl, and when taken together any two R 4 -R 9 groups attached to adjacent carbon ring atoms represent the atoms necessary to complete an aryl ring.

Claim 4

A pyrylium-type salt selected from the group consisting of 4-[3-(2,6-Diphenyl-4H-pyran-4-ylidene)-2-phenylpropen-1-yl]-2,6-diphenylpyrylium perchlorate; 4-[3-(2,6-Diphenyl-4H-pyran-4-ylidene)-2-phenylpropen-1-yl]flavylium perchlorate; 4-[3-(4H-Benzopyran-4-ylidene)-2-phenylpropen-1-yl]flavylium perchlorate; and 4-[3-(2,6-Diphenyl-4H-pyran-4-ylidene)-2-(p-methoxyphenyl)propen-1-yl]-2,6-diphenylpyrylium perchlorate.

Claim 5

A pyrylium-type salt selected from the group consisting of 4-[3-(2,6-Diphenyl-4H-pyran-4-ylidene)-2-phenylpropen-1-yl]-2,6-diphenylpyrylium perchlorate; 4-[3-(2,6-Diphenyl-4H-pyran-4-ylidene)-2-phenylpropen-1-yl]flavylium perchlorate; 4-[3-(4H-Benzopyran-4-ylidene)-2-phenylpropen-1-yl]flavylium perchlorate; and 4-[3-(2,6-Diphenyl-4H-pyran-4-ylidene)-2-(p-methoxyphenyl)propen-1-yl]-2,6-diphenylpyrylium perchlorate.

Claim 6

A radiation sensitive composition comprising a radiation sensitive material which absorbs radiation having a wavelength of greater than about 680 nm., said material having the formula: ##STR23## wherein: each of X 1 and X 2 , which may be the same or different, represents oxygen, sulfur, or selenium; each of Y 1 and Y 2 , which may be the same or different, represents the atoms necessary to complete a heterocyclic unsaturated ring nucleus having 6 or 10 ring atoms including a selenium, sulfur or oxygen hereto ring atom and 5 or 9 carbon ring atoms; each of R 1 , R 2 , and R 3 , which may be the same or different, represents hydrogen, halogen, cyano, nitro, alkyl having 1 to about 4 carbon atoms in the alkyl group, or aryl, with the proviso that at least one of R 1 , R 2 , or R 3 represents phenyl or alkoxyphenyl; and Z.sup.⊖ represents an anionic function.

Claim 7

A radiation sensitive composition comprising a radiation sensitive material which absorbs radiation having a wavelength of greater than about 680 nm., said material having the formula: ##STR23## wherein: each of X 1 and X 2 , which may be the same or different, represents oxygen, sulfur, or selenium; each of Y 1 and Y 2 , which may be the same or different, represents the atoms necessary to complete a heterocyclic unsaturated ring nucleus having 6 or 10 ring atoms including a selenium, sulfur or oxygen hereto ring atom and 5 or 9 carbon ring atoms; each of R 1 , R 2 , and R 3 , which may be the same or different, represents hydrogen, halogen, cyano, nitro, alkyl having 1 to about 4 carbon atoms in the alkyl group, or aryl, with the proviso that at least one of R 1 , R 2 , or R 3 represents phenyl or alkoxyphenyl; and Z.sup.⊖ represents an anionic function.

Claim 8

A radiation sensitive composition comprising a radiation sensitive pyrylium-type salt and a non-interfering carrier for said salt, said salt having the formula: ##STR24## wherein: each of X 1 and X 2 , which may be the same or different, represents oxygen, sulfur, or selenium; each of Y 1 and Y 2 , which may be the same or different, represents the atoms necessary to complete a heterocyclic unsaturated ring nucleus having 6 or 10 ring atoms including a selenium, sulfur or oxygen hetero ring atom and 5 or 9 carbon ring atoms; each of R 1 , R 2 , and R 3 , which may be the same or different, represents hydrogen, halogen, cyano, nitro, alkyl having 1 to about 4 carbon atoms in the alkyl group, or aryl, with the proviso that at least one of R 1 , R 2 , or R 3 represents aryl; and Z.sup.⊖ represents an anionic function.

Claim 9

A radiation sensitive composition comprising a radiation sensitive pyrylium-type salt and a non-interfering carrier for said salt, said salt having the formula: ##STR24## wherein: each of X 1 and X 2 , which may be the same or different, represents oxygen, sulfur, or selenium; each of Y 1 and Y 2 , which may be the same or different, represents the atoms necessary to complete a heterocyclic unsaturated ring nucleus having 6 or 10 ring atoms including a selenium, sulfur or oxygen hetero ring atom and 5 or 9 carbon ring atoms; each of R 1 , R 2 , and R 3 , which may be the same or different, represents hydrogen, halogen, cyano, nitro, alkyl having 1 to about 4 carbon atoms in the alkyl group, or aryl, with the proviso that at least one of R 1 , R 2 , or R 3 represents aryl; and Z.sup.⊖ represents an anionic function.

Claim 10

A radiation sensitive composition as defined in claim 5 wherein said composition comprises said radiation sensitive material admixed in a non-interfering liquid or in a non-interfering binder.

Claim 11

A radiation sensitive composition as defined in claim 5 wherein: each of R 1 -R 3 , which may be the same or different, represent hydrogen, alkyl, phenyl or alkoxyphenyl; the heterocyclic ring containing Y 1 represents a group having one of the following structures: ##STR25## and wherein the heterocyclic ring containing Y 2 represents a group having one of the following structures: ##STR26## wherein each of X 1 and X 2 , which may be the same or different, represents oxygen or sulfur; Z represents an anionic function; and each of R 4 , R 5 , R 6 , R 7 , R 8 , and R 9 , which may be the same or different, represents hydrogen, alkyl having 1 to 4 carbon atoms in the alkyl group, phenyl, and when taken together any two R 4 -R 9 groups attached to adjacent carbon ring atoms represent the atoms necessary to complete an aryl ring.

Claim 12

A radiation sensitive composition as defined in claim 5 wherein said pyrylium-type salt is selected from the group consisting of 4-[3-(2,6-Diphenyl-4H-pyran-4-ylidene)-2-phenylpropen-1-yl]-2,6-diphenylpyrylium perchlorate; 4-[3-(2,6-Diphenyl-4H-pyran-4-ylidene)-2-phenylpropen-1-yl]flavylium perchlorate; 4-[3-(4H-Benzopyran-4-ylidene)-2-phenylpropen-1-yl]flavylium perchlorate; and 4-[3-(2,6-Diphenyl-4H-pyran-4-ylidene)-2-(p-methoxyphenyl)propen-1-yl]-2,6-diphenylpyrylium perchlorate.