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US4702997A Expired / Lapsed US ⏱️ 0.0 years remaining

Photopolymerizable laminate

Assignee: Asahi Kasei Corp
•
Filing: 1986-02-06
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Granted: 1987-10-27
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Expires: 2006-02-06
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Abstract

Abstract A photopolymerizable laminate comprising a photopolymerizable layer and a support layer, said photopolymerizable layer containing; (1) 5 to 95% by weight, based on the total weight of the photopolymerizable layer, of a binder comprising a vinyl polymer or a vinyl copolymer, (2) 95 to 5% by weight, based on the total weight of the photopolymerizable layer, of a monomeric component containing at least 50% by weight of at least one compound selected from the group consisting of the photopolymerizable unsaturated compounds represented by the formulae (A), (B) and (C) shown below and having a value of molecular weight/number of double bonds contained of 1000 or less, and (3) 0.01 to 30% by weight, based on the total weight of the photopolymerizable layer, of a photopolymerization initiator. ##STR1##

Inventors

  • 👤 Hideo Ai
  • 👤 Akihiko Ideda
  • 👤 Jiro Sato

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 08:29
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/025; G03F7/027

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 290 words
In the formation of a resist image by exposing selected areas of a laminate including a photopolymerizable layer to actinic light, dissolving away the areas which were not exposed to the light and leaving the areas exposed to the light, the dissolution being effected with an organic solvent, the improvement which comprises employing as the laminate a photopolymerizable laminate consisting essentially of a photopolymerizable layer and a support layer, said photopolymerizable layer containing: (1) 5 to 95% by weight, based on the total weight of the photopolymerizable layer, of a binder comprising a vinyl polymer or a vinyl copolymer, (2) 95 to 5% by weight, based on the total weight of the photopolymerizable layer, of a monomeric component containing at least 50% by weight of at least one compound selected from the group consisting of the photopolymerizable unsaturated compounds represented by the formula (A) shown below and having a value of molecular weight/number of double bonds contained of 1000 or less, ##STR40## wherein n is an interger of 0 or more; R 1 is hydrogen or methyl; X is a divalent C 1-8 aliphatic hydrocarbon group, ##STR41## (where R 3 is a C 1-4 alkyl group, p is an integer of 1 to 10, q and r are each an integer of 1 to 4); R 2 is a C 1-6 alkyl group or CH 2 --O--R 4 (where R 4 is phenyl, an aryl group or a C 1-6 alkyl group); Y is a hexamethylene group; Z is ##STR42## (where t is an integer of 2 to 10, x is an integer of 1 to 30, Z 1 is ##STR43## (3) 0.01 to 30% by weight, based on the total weight of the photopolymerizable layer, of a photopolymerization initiator.
Claim 2
Dependent Claim 290 words
In the formation of a resist image by exposing selected areas of a laminate including a photopolymerizable layer to actinic light, dissolving away the areas which were not exposed to the light and leaving the areas exposed to the light, the dissolution being effected with an organic solvent, the improvement which comprises employing as the laminate a photopolymerizable laminate consisting essentially of a photopolymerizable layer and a support layer, said photopolymerizable layer containing: (1) 5 to 95% by weight, based on the total weight of the photopolymerizable layer, of a binder comprising a vinyl polymer or a vinyl copolymer, (2) 95 to 5% by weight, based on the total weight of the photopolymerizable layer, of a monomeric component containing at least 50% by weight of at least one compound selected from the group consisting of the photopolymerizable unsaturated compounds represented by the formula (A) shown below and having a value of molecular weight/number of double bonds contained of 1000 or less, ##STR40## wherein n is an interger of 0 or more; R 1 is hydrogen or methyl; X is a divalent C 1-8 aliphatic hydrocarbon group, ##STR41## (where R 3 is a C 1-4 alkyl group, p is an integer of 1 to 10, q and r are each an integer of 1 to 4); R 2 is a C 1-6 alkyl group or CH 2 --O--R 4 (where R 4 is phenyl, an aryl group or a C 1-6 alkyl group); Y is a hexamethylene group; Z is ##STR42## (where t is an integer of 2 to 10, x is an integer of 1 to 30, Z 1 is ##STR43## (3) 0.01 to 30% by weight, based on the total weight of the photopolymerizable layer, of a photopolymerization initiator.
Claim 3
Dependent Claim 12 words
A process according to claim 1, wherein the organic solvent is 1,1,1-trichloroethane.
Claim 4
Dependent Claim 13 words
A process according to claim 1, wherein (2) is the sole monomeric component.

References Cited (Backward Citations)

GB1379228A Cited
US4088498A Cited
US4019972A Cited
US4296196A Cited
US4499163A Cited
US4438190A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-10-26 1991-04-27 1991-10-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-10-26 1995-04-27 1995-10-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-10-26 1999-04-27 1999-10-27 $7700.00 Window Closed / Lapsed

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