US4614701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photocurable diazo or azide composition with acrylic copolymer having hydroxy and amino groups on separate acrylic monomer units
Assignee: SEKISUI FINE CHEMICAL Co Ltd A CORP OF JAPAN
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Filing: 1984-09-28
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Granted: 1986-09-30
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Expires: 2004-09-28
Abstract
Abstract A photocurable resin composition comprising (A) a copolymer composed of, as structural units, (a) 20 to 70% by weight of a hydroxyl group-containing acrylic monomer unit represented by the following formula <IMAGE> (I) wherein R1 and R2, independently from each other, represent a hydrogen atom, a methyl group or an ethyl group and n is 1, 2 or 3, and (b) 5 to 80% by weight of a nitrogen-containing acrylic monomer unit represented by the following formula <IMAGE> (II) or <IMAGE> (III) wherein R3 represents a hydrogen atom or a methyl group, X represents 0 or NH, R4 represents a linear or branched alkylene group having 2 or 3 carbon atoms, R5, R6 and R7, independently from each other, represent a hydrogen atom or a linear or branched alkyl group having 1 to 4 carbon atoms and Y(-) represents an anion of an acid, and (B) a diazo compound or an azide compound.
Inventors
- 👤 Hirofumi Mori
- 👤 Hitoshi Hori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:23
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/016; G03F7/021; G03F7/0212; G03F7/008; G03F7/012; G03F7/0125
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
202 words
A photocurable resin composition comprising a uniform mixture of: (A) 100 parts by weight of a copolymer which is water-soluble and dyeable with an acid dye and which is composed of, as structural units, (a) 20 to 70% by weight of a hydroxyl group-containing acrylic monomer unit represented by the formula ##STR9## wherein R 1 and R 2 , independently from each other, represent hydrogen, methyl or ethyl, and n is 1, 2 or 3, and (b) 25 to 60% by weight of a nitrogen-containing acrylic monomer unit represented by at least one of the formulae ##STR10## wherein R 3 represents hydrogen or methyl, X represents O or NH, R 4 represents a linear or branched alkylene group having 2 or 3 carbon atoms, R 5 , R 6 and R 7 , independently from each other, represent hydrogen or a linear or branched alkyl group having 1 to 4 carbon atoms, and Y.sup.⊖ represents an anion of an acid, and (B) 2-30 parts by weight of a diazo compound containing at least two diazo groups per molecule, or 10-30 parts by weight of an azide compound containing at least two azide groups per molecule, as a light sensitizer for the copolymer.
Claim 2
Dependent Claim
202 words
A photocurable resin composition comprising a uniform mixture of: (A) 100 parts by weight of a copolymer which is water-soluble and dyeable with an acid dye and which is composed of, as structural units, (a) 20 to 70% by weight of a hydroxyl group-containing acrylic monomer unit represented by the formula ##STR9## wherein R 1 and R 2 , independently from each other, represent hydrogen, methyl or ethyl, and n is 1, 2 or 3, and (b) 25 to 60% by weight of a nitrogen-containing acrylic monomer unit represented by at least one of the formulae ##STR10## wherein R 3 represents hydrogen or methyl, X represents O or NH, R 4 represents a linear or branched alkylene group having 2 or 3 carbon atoms, R 5 , R 6 and R 7 , independently from each other, represent hydrogen or a linear or branched alkyl group having 1 to 4 carbon atoms, and Y.sup.⊖ represents an anion of an acid, and (B) 2-30 parts by weight of a diazo compound containing at least two diazo groups per molecule, or 10-30 parts by weight of an azide compound containing at least two azide groups per molecule, as a light sensitizer for the copolymer.
Claim 3
Dependent Claim
17 words
The composition of claim 1 wherein the hydroxyl group-containing acrylic monomer units are derived from 2-hydroxyethyl methacrylate.
Claim 4
Dependent Claim
16 words
The composition of claim 1 wherein the nitrogen-containing acrylic monomer units are derived from N,N-dimethylaminopropyl methacrylamide.
Claim 5
Dependent Claim
17 words
The composition of claim 1 wherein the diazo compound is a condensation product between p-diazodiphenylamine and formaldehyde.
Claim 6
Dependent Claim
12 words
The composition of claim 1 wherein the azide compound is sodium 4,4'-diazidostilbene-2,2'-disulfonate.
Claim 7
Dependent Claim
18 words
The composition of claim 1 wherein the copolymer contains up to 20% by weight of other monomeric units.
Claim 8
Dependent Claim
28 words
The composition of claim 2 wherein the nitrogen-containing acrylic monomer units are derived from N,N-dimethylaminopropyl methacrylamide, and the diazo compound is a condensation product between p-diazodiphenylamine and formaldehyde.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-29 | 1990-03-31 | 1990-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-29 | 1994-03-31 | 1994-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-29 | 1998-03-31 | 1998-09-30 | $7700.00 | Window Closed / Lapsed |