US5091280A — Light- and heat-sensitive recording material

Claim 1

Independent Claim 161 words

A light- and heat-sensitive recording material comprising a support having thereon at least one light- and heat-sensitive layer comprising, (1) microcapsules comprising a wall and a core containing an electron donative colorless dye, and (2) a light-hardenable composition arranged outside of said microcapsules containing (a) a polymerizable compound having at least one atom with an unpaired electron and at least one ethylenically unsaturated bond in the molecule, (b) a photopolymerization initiator, and (c) an electron acceptive developer, the wall of said microcapsules having increased permeability to the electron acceptive developer and polymerizable compound upon heating, wherein said light-hardenable composition is imagewise hardened by imagewise exposure of the recording material to light to form a hardened latent image, and subsequently under heating, the electron acceptive developer diffuses into the microcapsules in both the exposed portions and the unexposed portions whereas the polymerizable compound diffuses into the microcapsules in the unexposed portions only, to thereby obtain a color image in the exposed portions.

Claim 2

Dependent Claim 161 words

A light- and heat-sensitive recording material comprising a support having thereon at least one light- and heat-sensitive layer comprising, (1) microcapsules comprising a wall and a core containing an electron donative colorless dye, and (2) a light-hardenable composition arranged outside of said microcapsules containing (a) a polymerizable compound having at least one atom with an unpaired electron and at least one ethylenically unsaturated bond in the molecule, (b) a photopolymerization initiator, and (c) an electron acceptive developer, the wall of said microcapsules having increased permeability to the electron acceptive developer and polymerizable compound upon heating, wherein said light-hardenable composition is imagewise hardened by imagewise exposure of the recording material to light to form a hardened latent image, and subsequently under heating, the electron acceptive developer diffuses into the microcapsules in both the exposed portions and the unexposed portions whereas the polymerizable compound diffuses into the microcapsules in the unexposed portions only, to thereby obtain a color image in the exposed portions.

Claim 3

Dependent Claim 37 words

The light- and heat-sensitive recording material as in claim 1, wherein said atom is present in a bonding selected from the group of ester bond, amide bond, amine bond, carbonyl bond and ether bond in the molecule.

Claim 4

Dependent Claim 32 words

The light- and heat-sensitive recording material as in claim 1, wherein said polymerizable vinyl monomer has a molecular weight of from 200 to 1,000 and has a plurality of ethylenical double bonds.

Claim 5

Dependent Claim 37 words

The light- and heat-sensitive recording material as in claim 1, wherein said recording material has at least two light- and heat-sensitive layers and an interlayer containing an ultraviolet absorbent is present between said light- and heat-sensitive layers.

Claim 6

Dependent Claim 20 words

The light- and heat-sensitive recording material as in claim 4, wherein said ultraviolet absorbent is dispersed as fine particles thereof.

Claim 7

Dependent Claim 16 words

The light- and heat-sensitive recording material as in claim 4, wherein said ultraviolet absorbent is latex-dispersed.

Claim 8

Dependent Claim 24 words

The light- and heat-sensitive recording material as in claim 4, wherein said ultraviolet absorbent is a latex formed by copolymerizing a ultraviolet absorbent monomer.

Claim 9

Dependent Claim 209 words

The light- and heat-sensitive recording material as in claim 1, wherein said recording material has at least two light- and heat-sensitive layers and said photopolymerization initiator present in at least one of the light- and heat-sensitive layers is a compound represented by formula (I) or (II); ##STR17## wherein X represents a halogen atom; Y represents --C(X) 3 , --NH 2 , --NHR', --N(R') 2 , or --OR', wherein R' represents an alkyl group, a substituted alkyl group, an aryl group or a substituted aryl group; and R represents --C(X) 3 , an alkyl group, a substituted alkyl group an aryl group, a substituted aryl group, or a substituted alkenyl group; ##STR18## wherein R 1 represents an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, a substituted alkenyl group, R 4 CO-- or R 4 OCO--, wherein R 4 represents an alkyl group, a substituted alkyl group, an aryl group, or a substituted aryl group; R 2 represents a hydrogen atom, an alkyl group, a substituted alkyl group, an aryl group, or a substituted aryl group; and R 1 and R 2 may form together an aromatic ring; R 3 represents an alkyl group or a substituted alkyl group; and Z represents a counter anion.

Claim 10

Dependent Claim 49 words

The light- and heat-sensitive recording material as in claim 7, wherein each of said light- and heat-sensitive layers other than the uppermost layer contains an ultraviolet absorbent and the photo-polymerization initiator present in each layer other than the lowermost layer is a compound represented by formula (I) or (II).

Claim 11

Dependent Claim 46 words

The light- and heat-sensitive recording material as in claim 7, wherein interlayer(s) containing an ultraviolet absorbent is present between the light- and heat-sensitive layers and the photopolymerization initiator present in each layer other than the lowermost layer is a compound represented by formula (I) or (II).

Claim 12

Dependent Claim 27 words

The light- and heat-sensitive recording material as in claim 1, wherein a protective layer comprising an organic polymer is present on the uppermost light- and heat-sensitive layer.

Claim 13

Dependent Claim 18 words

The light- and heat-sensitive recording material as in claim 10, wherein said protective layer contains matting agent particles.

Claim 14

Dependent Claim 22 words

The light- and heat-sensitive recording material as in claim 10, wherein said protective layer contains a hardening agent for the organic polymer.

Claim 15

Dependent Claim 22 words

The light- and heat-sensitive recording material as in claim 11, wherein said protective layer contains a hardening agent for the organic polymer.

Claim 16

Dependent Claim 120 words

A light- and heat-sensitive recording material comprising a support having thereon at least one light- and heat-sensitive layer comprising, (1) microcapsules comprising a wall and a core containing an electron donative colorless dye, and (2) a light-hardenable composition arranged outside of said microcapsules containing (d) an electron acceptive polymerizable vinyl monomer and (b) a photopolymerization initiator, the wall of said microcapsules having increased permeability to the polymerizable vinyl monomer upon heating, wherein said light-hardenable composition is imagewise hardened by imagewise exposure of the recording material to light to form a hardened latent image, and subsequently under heating, the polymerizable vinyl monomer diffuses into the microcapsules in the unexposed portions only, to thereby obtain a color image in the unexposed portions.

Claim 17

Dependent Claim 120 words

A light- and heat-sensitive recording material comprising a support having thereon at least one light- and heat-sensitive layer comprising, (1) microcapsules comprising a wall and a core containing an electron donative colorless dye, and (2) a light-hardenable composition arranged outside of said microcapsules containing (d) an electron acceptive polymerizable vinyl monomer and (b) a photopolymerization initiator, the wall of said microcapsules having increased permeability to the polymerizable vinyl monomer upon heating, wherein said light-hardenable composition is imagewise hardened by imagewise exposure of the recording material to light to form a hardened latent image, and subsequently under heating, the polymerizable vinyl monomer diffuses into the microcapsules in the unexposed portions only, to thereby obtain a color image in the unexposed portions.

Claim 18

Dependent Claim 37 words

The light- and heat-sensitive recording material as in claim 15, wherein said recording material has at least two light- and heat-sensitive layers and an interlayer containing an ultraviolet absorbent is present between said light- and heat-sensitive layers.

Claim 19

Dependent Claim 20 words

The light- and heat-sensitive recording material as in claim 15, wherein said ultraviolet absorbent is dispersed as fine particles thereof.

Claim 20

Dependent Claim 16 words

The light- and heat-sensitive recording material as in claim 15, wherein said ultraviolet absorbent is latex-dispersed.

Claim 21

Dependent Claim 24 words

The light- and heat-sensitive recording material as in claim 15, wherein said ultraviolet absorbent is a latex formed by copolymerizing a ultraviolet absorbent monomer.

Claim 22

Dependent Claim 208 words

The light- and heat-sensitive recording material as in claim 15, wherein said recording material has at least two light- and heat-sensitive layers and said photopolymerization initiator present in at least one of the light- and heat-sensitive layers is a compound represented by formula (I) or (II); ##STR19## wherein X represents a halogen atom; Y represents --C(X) 3 , --NH 2 , --NHR', --N(R') 2 , or --OR', wherein R' represents an alkyl group, substituted alkyl group, an aryl group, or a substituted aryl group; and R represents --C(X) 3 , an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, or a substituted alkenyl group; ##STR20## wherein R 1 represents an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, a substituted alkenyl group, R 4 CO-- or R 4 OCO--, wherein R 4 represents an alkyl group, a substituted alkyl group, an aryl group, or a substituted aryl group; R 2 represents a hydrogen atom, an alkyl group, a substituted alkyl group, an aryl group, or a substituted aryl group; and R 1 and R 2 may form together an aromatic ring; R 3 represents an alkyl group or a substituted alkyl group; and Z represents a counter anion.

Claim 23

Dependent Claim 49 words

The light- and heat-sensitive recording material as in claim 19, wherein each of said light- and heat-sensitive layers other than the uppermost layer contains an ultraviolet absorbent and the photopolymerization initiator present in each layer other than the lowermost layer is a compound represented by formula (I) or (II).

Claim 24

Dependent Claim 46 words

The light- and heat-sensitive recording material as in claim 19, wherein interlayer(s) containing an ultraviolet absorbent is present between the light- and heat-sensitive layers and the photopolymerization initiator present in each layer other than the lowermost layer is a compound represented by formula (I) or (II).

Claim 25

Dependent Claim 27 words

The light- and heat-sensitive recording material as in claim 15, wherein a protective layer comprising an organic polymer is present on the uppermost light- and heat-sensitive layer.

Claim 26

Dependent Claim 18 words

The light- and heat-sensitive recording material as in claim 22, wherein said protective layer contains matting agent particles.

Claim 27

Dependent Claim 22 words

The light- and heat-sensitive recording material as in claim 22, wherein said protective layer contains a hardening agent for the organic polymer.

Claim 28

Dependent Claim 22 words

The light- and heat-sensitive recording material as in claim 23, wherein said protective layer contains a hardening agent for the organic polymer.

Claim 29

Independent Claim 147 words

A method for forming an image comprising: (A) imagewise exposing to light a light- and heat-sensitive recording material comprising a support having thereon at least one light- and heat-sensitive layer comprising, (1) microcapsules comprising a wall and a core containing an electron donative colorless dye, and (2) a light-hardenable composition arranged outside of said microcapsules containing (a) a polymerizable compound having at least one atom with an unpaired electron and at least one ethylenically unsaturated bond in the molecule, (b) a photopolymerization initiator, and (c) an electron acceptive developer, the wall of said microcapsules having increased permeability to the electron acceptive developer and polymerizable compound upon heating, to thereby harden the light-hardenable composition in the exposed portions of the recording material; and (B) heating the recording material under the condition where the microcapsules are not ruptured to form color in the hardened portions of the recording material.

Claim 30

Independent Claim 147 words

A method for forming an image comprising: (A) imagewise exposing to light a light- and heat-sensitive recording material comprising a support having thereon at least one light- and heat-sensitive layer comprising, (1) microcapsules comprising a wall and a core containing an electron donative colorless dye, and (2) a light-hardenable composition arranged outside of said microcapsules containing (a) a polymerizable compound having at least one atom with an unpaired electron and at least one ethylenically unsaturated bond in the molecule, (b) a photopolymerization initiator, and (c) an electron acceptive developer, the wall of said microcapsules having increased permeability to the electron acceptive developer and polymerizable compound upon heating, to thereby harden the light-hardenable composition in the exposed portions of the recording material; and (B) heating the recording material under the condition where the microcapsules are not ruptured to form color in the hardened portions of the recording material.

Claim 31

Independent Claim 123 words

A method for forming an image comprising: (A) imagewise exposing to light a light- and heat-sensitive recording material comprising a support having thereon at least one light- and heat-sensitive layer comprising, (1) microcapsules comprising a wall and a core containing an electron donative colorless dye, and (2) a light-hardenable composition arranged outside of said microcapsules containing (d) an electron acceptive polymerizable vinyl monomer and (b) a photopolymerization initiator, the wall of said microcapsules having increased permeability to the polymerizable vinyl monomer upon heating, to thereby harden the light-hardenable composition in the exposed portions of the recording material; and (B) heating the recording material under the condition where the microcapsules are not ruptured to form color in the unhardened portions of the recording material.

Claim 32

Independent Claim 123 words

A method for forming an image comprising: (A) imagewise exposing to light a light- and heat-sensitive recording material comprising a support having thereon at least one light- and heat-sensitive layer comprising, (1) microcapsules comprising a wall and a core containing an electron donative colorless dye, and (2) a light-hardenable composition arranged outside of said microcapsules containing (d) an electron acceptive polymerizable vinyl monomer and (b) a photopolymerization initiator, the wall of said microcapsules having increased permeability to the polymerizable vinyl monomer upon heating, to thereby harden the light-hardenable composition in the exposed portions of the recording material; and (B) heating the recording material under the condition where the microcapsules are not ruptured to form color in the unhardened portions of the recording material.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1995-02-24	1995-08-26	1996-02-25	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1999-02-24	1999-08-26	2000-02-25	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2003-02-24	2003-08-26	2004-02-25	$7700.00	Window Closed / Lapsed

Light- and heat-sensitive recording material

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