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US4339524A
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Photosensitive resinous materials containing stilbazolium groups
Assignee: National Institute of Advanced Industrial Science and Technology
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Filing: 1981-04-14
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Granted: 1982-07-13
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Expires: 2001-04-14
Abstract
Abstract A partially saponified polyvinyl acetate having at least one stilbazolium group-containing photosensitive unit represented by the following general formula: <IMAGE> (wherein R1 is hydrogen atom, an unsubstituted or substituted alkyl group, an alkenyl group or an aralkyl group, R2 is hydrogen atom or an unsubstituted or substituted alkyl group, Y is a conjugated base of an inorganic or organic acid, m is an integer of 1 to 6, and n is 0 or 1) and an acetal unit represented by the following general formula: <IMAGE> (wherein R3 is hydrogen atom or an alkyl group); the acetal units being contained therein in an amount of approximately 0.5 to 10.0 mol % with respect to mole of the polyvinylalcohol units thereof; the stilbazolium group-containing units being contained therein in an amount of approximately 0.5 to 5.0 mol % with respect to mole of the polyvinylalcohol units thereof; and having a degree of polymerization of approximately 500 to 3,000 and a degree of saponification of approximately 60% or higher. This polyvinyl acetate can be used as photosensitive resinous materials or compositions suitable for the fluorescent screen of a cathode ray tube.
Inventors
- 👤 Kunihiro Ichimura
- 👤 Osamu Takeuchi
- 👤 Hideo Kusama
- 👤 Kazuo Yamazaki
- 👤 Akira Saka
- 👤 Hiroshi Ito
- 👤 Kunitaka Toyofuku
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:24
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388; C; C08; C08F; C08F8/00; C08F8/44
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
166 words
A partially saponified polyvinyl acetate having at least one stilbazolium group-containing photosensitive unit represented by the following general formula: ##STR8## (wherein R 1 is hydrogen atom, an unsubstituted or substituted alkyl group, an alkenyl group or an aralkyl group, R 2 is hydrogen atom or an unsubstituted or substituted group, Y is a conjugated base of an inorganic or organic acid, m is an integer of 1 to 6, and n is 0 or 1) and an acetal unit represented by the following general formula: ##STR9## (wherein R 3 is hydrogen atom or an alkyl group); the acetal units being contained therein in an amount of approximately 0.5 to 10.0 mol% with respect to mole of the polyvinylalcohol units thereof; the stilbazolium group-containing units being contained therein in an amount of approximately 0.5 to 5.0 mol% with respect to mole of the polyvinylalcohol units thereof and having a degree of polymerization of approximately 500 to 3,000 and a degree of saponification of approximately 60% or higher.
Claim 2
Dependent Claim
166 words
A partially saponified polyvinyl acetate having at least one stilbazolium group-containing photosensitive unit represented by the following general formula: ##STR8## (wherein R 1 is hydrogen atom, an unsubstituted or substituted alkyl group, an alkenyl group or an aralkyl group, R 2 is hydrogen atom or an unsubstituted or substituted group, Y is a conjugated base of an inorganic or organic acid, m is an integer of 1 to 6, and n is 0 or 1) and an acetal unit represented by the following general formula: ##STR9## (wherein R 3 is hydrogen atom or an alkyl group); the acetal units being contained therein in an amount of approximately 0.5 to 10.0 mol% with respect to mole of the polyvinylalcohol units thereof; the stilbazolium group-containing units being contained therein in an amount of approximately 0.5 to 5.0 mol% with respect to mole of the polyvinylalcohol units thereof and having a degree of polymerization of approximately 500 to 3,000 and a degree of saponification of approximately 60% or higher.
Claim 3
Dependent Claim
126 words
A photosensitive resinous material comprising a partially saponified polyvinyl acetate having at least one stilbazolium group-containing photosensitive unit represented by the following general formula: ##STR10## (wherein R 1 is hydrogen atom, an unsubstituted or substituted alkyl group, an alkenyl group or an aralkyl group, R 2 is hydrogen atom or an unsubstituted or substituted alkyl group, Y is a conjugated base of an inorganic or organic acid, m is an integer of 1 to 6, and n is 0 or 1) and an acetal unit represented by the following general formula: ##STR11## (wherein R 3 is hydrogen atom or an alkyl group); the acetal units being contained therein in an amount of approximately 0.5 to 10.0 mol% with respect to mole of the polyvinylalcohol units thereof.
Claim 4
Dependent Claim
126 words
A photosensitive resinous material comprising a partially saponified polyvinyl acetate having at least one stilbazolium group-containing photosensitive unit represented by the following general formula: ##STR10## (wherein R 1 is hydrogen atom, an unsubstituted or substituted alkyl group, an alkenyl group or an aralkyl group, R 2 is hydrogen atom or an unsubstituted or substituted alkyl group, Y is a conjugated base of an inorganic or organic acid, m is an integer of 1 to 6, and n is 0 or 1) and an acetal unit represented by the following general formula: ##STR11## (wherein R 3 is hydrogen atom or an alkyl group); the acetal units being contained therein in an amount of approximately 0.5 to 10.0 mol% with respect to mole of the polyvinylalcohol units thereof.
Claim 5
Dependent Claim
18 words
The photosensitive resinous material according to claim 2, wherein the acetal unit is formal, acetoacetal or butyral unit.
Claim 6
Dependent Claim
33 words
The photosensitive resinous material according to claim 2, wherein the stilbazolium group-containing units are contained in an amount of approximately 0.5 to 5.0 mol% with respect to mole of the polyvinylalcohol units thereof.
Claim 7
Dependent Claim
24 words
The photosensitive resinous material according to claim 2, wherein the partially saponified polyvinyl acetate has a degree of polymerization of approximately 500 to 3,000.
Claim 8
Dependent Claim
24 words
The photosensitive resinous material according to claim 2, wherein the partially saponified polyvinyl acetate has a degree of saponification of approximately 60% or higher.
Claim 9
Dependent Claim
18 words
The photosensitive resinous material according to claim 6, wherein the degree of saponification is approximately 70% or higher.
Claim 10
Dependent Claim
14 words
The photosensitive resinous material according to claim 2, further containing water as a solvent.
Claim 11
Dependent Claim
24 words
The photosensitive resinous material according to claim 8, wherein approximately 10 to 25% by weight of water is replaced by a water-soluble lower alcohol.
Claim 12
Dependent Claim
18 words
The photosensitive resinous material according to claim 9, wherein the water-soluble lower alcohol is methanol, ethanol or isopropanol.
Claim 13
Dependent Claim
127 words
A photosensitive resinous composition comprising a partially saponified polyvinyl acetate having at least one stilbazolium group-containing photosensitive unit represented by the following general formula: ##STR12## (wherein R 1 is hydrogen atom, an unsubstituted or substituted alkyl group, an alkenyl group or an aralkyl group, R 2 is hydrogen atom or an unsubstituted or substituted alkyl group, Y is a conjugated base of an inorganic or organic acid, m is an integer of 1 to 6, and n is 0 or 1) and an acetal unit represented by the following general formula: ##STR13## (wherein R 3 is hydrogen atom or an alkyl group); the acetal units being contained therein in an amount of approximately 0.5 to 10.0 mol% with respect to mole of the polyvinyl alcohol units thereof.
Claim 14
Dependent Claim
127 words
A photosensitive resinous composition comprising a partially saponified polyvinyl acetate having at least one stilbazolium group-containing photosensitive unit represented by the following general formula: ##STR12## (wherein R 1 is hydrogen atom, an unsubstituted or substituted alkyl group, an alkenyl group or an aralkyl group, R 2 is hydrogen atom or an unsubstituted or substituted alkyl group, Y is a conjugated base of an inorganic or organic acid, m is an integer of 1 to 6, and n is 0 or 1) and an acetal unit represented by the following general formula: ##STR13## (wherein R 3 is hydrogen atom or an alkyl group); the acetal units being contained therein in an amount of approximately 0.5 to 10.0 mol% with respect to mole of the polyvinyl alcohol units thereof.
Claim 15
Dependent Claim
18 words
The photosensitive resinous composition according to claim 11, wherein the acetal unit is formal, acetoacetal or butyral unit.
Claim 16
Dependent Claim
34 words
The photosensitive resinous composition according to claim 11, wherein the stilbazolium group-containing units are contained in an amount of approximately 0.5 to 5.0 mol% with respect to mole of the polyvinyl alcohol units thereof.
Claim 17
Dependent Claim
24 words
The photosensitive resinous composition according to claim 11, wherein the partially saponified polyvinyl acetate has a degree of polymerization of approximately 500 to 3,000.
Claim 18
Dependent Claim
24 words
The photosensitive resinous composition according to claim 11, wherein the partially saponified polyvinyl acetate has a degree of saponification of approximately 60% or higher.
Claim 19
Dependent Claim
18 words
The photosensitive resinous composition according to claim 15, wherein the degree of saponification is approximately 70% or higher.
Claim 20
Dependent Claim
14 words
The photosensitive resinous composition according to claim 11, further containing water as a solvent.
Claim 21
Dependent Claim
24 words
The photosensitive resinous composition according to claim 17, wherein approximately 10 to 25% by weight of water is replaced by a water-soluble lower alcohol.
Claim 22
Dependent Claim
18 words
The photosensitive resinous composition according to claim 18, wherein the water-soluble lower alcohol is methanol, ethanol or isopropanol.
Claim 23
Dependent Claim
14 words
The photosensitive resinous composition according to claim 11, further containing a pH adjusting agent.
Claim 24
Dependent Claim
15 words
The photosensitive resinous composition according to claim 20, wherein the pH adjusting agent is ammonia.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |