US4772530A — Photosensitive materials containing ionic dye com…

Claim 1

Independent Claim 61 words

A photohardenable composition comprising a free radical addition polymerizable or crosslinkable compound and an ionic dye-reactive counter ion compound, said ionic dye-reactive counter ion compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslinking of said polymerizable or crosslinkable compound and being a stable non-transient compound prior to exposure to said actinic radiation.

Claim 2

Dependent Claim 61 words

A photohardenable composition comprising a free radical addition polymerizable or crosslinkable compound and an ionic dye-reactive counter ion compound, said ionic dye-reactive counter ion compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslinking of said polymerizable or crosslinkable compound and being a stable non-transient compound prior to exposure to said actinic radiation.

Claim 3

Dependent Claim 23 words

The photohardenable composition of claim 1 wherein said ionic dye-counter ion compound is soluble in said free radical addition polymerizable or crosslinked compound.

Claim 4

Dependent Claim 38 words

The photohardenable composition of claim 1 wherein said ionic dye-counter ion compound is characterized in that following exposure of said compound to light, said dye is excited to a singlet state which is quenched by said counter ion.

Claim 5

Dependent Claim 50 words

The photohardenable composition of claim 3 wherein following exposure of said ionic dye-counter ion compound to light, an electron is transferred from said dye to said counter ion or from said counter ion to said dye and the rate of said electron transfer is greater than a diffusion controlled rate.

Claim 6

Dependent Claim 14 words

The photohardenable composition of claim 1 wherein said compound is an anionic dye compound.

Claim 7

Dependent Claim 21 words

The photohardenable composition of claim 5 wherein said anionic dye is selected from the group consisting of xanthene and oxonol dyes.

Claim 8

Dependent Claim 17 words

The photohardenable composition of claim 1 wherein said polymerizable or crosslinkable compound is an ethylenically unsaturated compound.

Claim 9

Dependent Claim 25 words

The photohardenable composition of claim 5 wherein said ionic dye counter ion compound is an anionic dye-iodonium ion complex or an anionic dye-pyryllium ion complex.

Claim 10

Dependent Claim 13 words

The photohardenable composition of claim 8 wherein said dye is a xanthene dye.

Claim 11

Dependent Claim 77 words

A photosensitive material comprising a support having a layer of a photohardenable composition on the surface thereof, said composition comprising a free radical addition polymerization or crosslinkable compound and an ionic dye-reactive counter ion compound, said ionic dye-reactive counter ion compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslinking of said polymerizable or crosslinkable compound and being a stable non-transient compuond prior to exposure to said actinic radiation.

Claim 12

Dependent Claim 77 words

A photosensitive material comprising a support having a layer of a photohardenable composition on the surface thereof, said composition comprising a free radical addition polymerization or crosslinkable compound and an ionic dye-reactive counter ion compound, said ionic dye-reactive counter ion compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslinking of said polymerizable or crosslinkable compound and being a stable non-transient compuond prior to exposure to said actinic radiation.

Claim 13

Dependent Claim 21 words

The photosensitive material of claim 10 wherein said ionic dye-counter ion compound is soluble in said addition polymerization or crosslinkable compound.

Claim 14

Dependent Claim 39 words

The photosensitive material of claim 10 wherein said ionic dye-counter ion compound is further characterized in that following exposure of said compound to light, said dye is excited to a singlet state which is quenched by said counter ion.

Claim 15

Dependent Claim 50 words

The photosensitive material of claim 10 wherein following exposure of said ionic dye-counter ion compound to light, an electron is transferred from said dye to said counter ion or from said counter ion to said dye and the rate of said electron transfer is greater than a diffusion controlled rate.

Claim 16

Dependent Claim 14 words

The photosensitive material of claim 10 wherein said complex is an anionic dye complex.

Claim 17

Dependent Claim 21 words

The photosensitive material of claim 15 wherein said anionic dye is selected from the group consisting of xanthene and oxonol dyes.

Claim 18

Dependent Claim 17 words

The photosensitive material of claim 10 wherein said photopolyermizable or crosslinkable compound is an ethylenically unsaturated compound.

Claim 19

Dependent Claim 26 words

The photosensitive material of claim 14 wherein said ionic dye-counter ion compound is an anionic dye iodonium ion compound or an anionic dye pyryllium ion compound.

Claim 20

Dependent Claim 12 words

The photosensitive material of claim 17 wherein said dye is a xanthene.

Claim 21

Dependent Claim 92 words

A photosensitve material comprising a support having a layer of microcapsules on one surface thereof, sasid microcapsules having an image-forming agent associated therewith and containing an internal phase including a photohardenable composition, said composition comprising a free radical addition polymerizable or crosslinkable compound and an ionic dye-reactive counter ion compound, said ionic dye-reactive counter ion compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslining of said polymerizable or crosslinkable compound and being a stable non-transient compound prior to exposure to said actinic radiation.

Claim 22

Dependent Claim 92 words

A photosensitve material comprising a support having a layer of microcapsules on one surface thereof, sasid microcapsules having an image-forming agent associated therewith and containing an internal phase including a photohardenable composition, said composition comprising a free radical addition polymerizable or crosslinkable compound and an ionic dye-reactive counter ion compound, said ionic dye-reactive counter ion compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslining of said polymerizable or crosslinkable compound and being a stable non-transient compound prior to exposure to said actinic radiation.

Claim 23

Dependent Claim 21 words

The photosensitive material of claim 19 wherein said ionic dye-counter ion compound is soluble in said addition polymerizable or crosslinkable compound.

Claim 24

Dependent Claim 39 words

The photosensitive material of claim 19 wherein said ionic dye-counter ion compound is further characterized in that following exposure of said compound to light, said dye is excited to a singlet state which is quenched by said counter ion.

Claim 25

Dependent Claim 50 words

The photosensitive material of claim 19 wherein following exposure of said ionic dye-counter ion compound to light, an electron is transferred from said dye to said counter ion or from said counter ion to said dye and the rate of said electron transfer is greater than a diffusion controlled rate.

Claim 26

Dependent Claim 17 words

The photosensitive material of claim 19 wherein said ionic dye-counter ion compound is an anionic dye complex.

Claim 27

Dependent Claim 21 words

The photosensitive material of claim 23 wherein said anionic dye is selected from the group consisting of xanthene and oxonol dyes.

Claim 28

Dependent Claim 18 words

The photosensitive material of claim 19 wherein said photo polymerizable or photocrosslinkable compound is an ethylenically unsaturated compound.

Claim 29

Dependent Claim 22 words

The photosensitive material of claim 25 wherein said ionic dye-counter ion compound is an anionic dye-iodonium compound or an anionic dye-pyryllium compound.

Claim 30

Dependent Claim 16 words

The photosensitive material of claim 26 wherein said image-forming agent is a substantially colorless chromogenic material.

Claim 31

Dependent Claim 79 words

The photosensitive material of claim 19 wherein said material is useful in forming full color images and said microcapsules include a first set of microcapsules having a cyan image-forming agent associated therewith, a second set of microcapsules having a magenta image-forming agent associated therewith and a third set of microcpasules having a yellow image-forming agent associated therewith, at least one of said first, second and third sets of microcapsules containing said photohardenable composition contain said ionic dye-counter ion compound.

Claim 32

Dependent Claim 53 words

The photosensitive material of claim 28 wherein said material is useful in forming images by a process which comprises the steps of image-wise exposing said microcapsules to three distinct wavelengths of actinic radiation which respectively harden said first, second and third sets of microcapsules and subjecting said microcapsules to a uniform rupturing force.

Claim 33

Dependent Claim 18 words

The photosensitive material of claim 29 wherein at least one of said wavelengths is greater than 400 nm.

Claim 34

Dependent Claim 17 words

The photosensitive material of claim 30 wherein said three distinct wavelengths are red, green and blue light.

Claim 35

Dependent Claim 23 words

The photohardenable composition of claim 1 wherein essentially all of said dye present in said composition is ionically bonded to said counter ion.

Claim 36

Dependent Claim 23 words

The photosensitive material of claim 10 wherein essentially all of said dye present in said composition is ionically bonded to said counter ion.

Claim 37

Dependent Claim 23 words

The photosenstive material of claim 19 wherein essentially all of said dye present in said composition is ionically bonded to said counter ion.

Claim 38

Dependent Claim 34 words

The photohardenable composition of claim 1 wherein said ionic dye-reactive counter ion compound is further characterized in that it is soluble in trimethylolpropane triacrylate in an amount of at least about 0.1% by weight.

Claim 39

Dependent Claim 34 words

The photosensitive material of claim 10 wherein said ionic dye-reactive counter ion compound is further characterized in that it is soluble in trimethylolpropane triacrylate in an amount of at least about 0.1% by weight.

Claim 40

Dependent Claim 34 words

The photosensitive material of claim 19 wherein said ionic dye-reactive counter ion compound is further characterized in that it is soluble in trimethylolpropane triacrylate in an amount of at least about 0.1% by weight.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1991-09-20	1992-03-21	1992-09-20	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1995-09-20	1996-03-21	1996-09-20	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1999-09-20	2000-03-21	2000-09-20	$7700.00	Window Closed / Lapsed

Photosensitive materials containing ionic dye compounds as initiators

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