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US3930868A Expired / Lapsed US ⏱️ 0.0 years remaining

Light sensitive arylglyoxyacrylate compositions

Assignee: Richardson Co
•
Filing: 1973-05-23
•
Granted: 1976-01-06
•
Expires: 1993-05-23
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Abstract

Abstract A light-sensitive composition comprising novel arylglyoxyalkyl acrylates that exhibits useful light sensitivity. The basic structure of the new compositions, which may also themselves be polymerized are as follows: ##EQU1## wherein Ar represents an aromatic structure selected from the group consisting of benzene, naphthalene and substituted products of each, R 1 represents an alkyl group having from one to ten carbon atoms, R 2 represents a grouping selected from the group consisting of hydrogen, or a lower alkyl group having from one to five carbon atoms and R 3 represents an alkenyl group having from one to 10 carbon atoms and singular unsaturation. The light-sensitive compositions may themselves be utilized in photochemistry as photopolymers, they may be combined with suitable solvents and additives or polymerized with suitable backbone polymers to provide substances which can be used as light-sensitive coatings. These coatings may be placed on substrates and in one instance as presensitized lithographic plates.

Inventors

  • 👤 Thaddeus M. Muzyczko
  • 👤 Donald W. Fieder

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 07:38
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/032; G03F7/038; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/112

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 72 words
A light sensitive and polymerizable composition having the following general structure: ##EQU13## wherein X represents an aromatic or a heterocyclic structure, R 1 represents an alkyl group having from one to ten carbon atoms, R 2 represents a grouping selected from the group consisting of hydrogen, or a lower alkyl group having from one to five carbon atoms, and R 3 represents an alkenyl group having from one to 10 carbon atoms.
Claim 2
Dependent Claim 72 words
A light sensitive and polymerizable composition having the following general structure: ##EQU13## wherein X represents an aromatic or a heterocyclic structure, R 1 represents an alkyl group having from one to ten carbon atoms, R 2 represents a grouping selected from the group consisting of hydrogen, or a lower alkyl group having from one to five carbon atoms, and R 3 represents an alkenyl group having from one to 10 carbon atoms.
Claim 3
Dependent Claim 6 words
Claim 1 wherein X is benzene.
Claim 4
Dependent Claim 6 words
Claim 1 wherein X is naphthalene.
Claim 5
Dependent Claim 9 words
Claim 1 wherein R 1 has two carbon atoms.
Claim 6
Dependent Claim 9 words
Claim 1 wherein R 2 has one carbon atom.
Claim 7
Dependent Claim 8 words
Claim 1 wherein R 3 has singular unsaturation.
Claim 8
Dependent Claim 9 words
Claim 1 wherein R 3 has one carbon atom.
Claim 9
Dependent Claim 19 words
Claim 1 wherein Ar is benzene, R 1 has two carbon atoms, and R 2 has one carbon atom.
Claim 10
Dependent Claim 25 words
A photopolymeric relief plate having from about 0.005 to about 0.05 inches of a coating described in claim 1 placed on a suitable backing member.
Claim 11
Dependent Claim 18 words
A lithographic printing plate comprising the light sensitive composition of claim 1 placed on a suitable backing member.

References Cited (Backward Citations)

US2367660A Cited
US3770602A Cited
US3725116A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-01-05 1979-07-07 1980-01-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-01-05 1983-07-07 1984-01-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-01-05 1987-07-07 1988-01-06 $7700.00 Window Closed / Lapsed

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