Patent US4170481A successfully refreshed from Google Patents.
US4170481A
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Photosensitive polymer composition
Assignee: Toray Industries Inc
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Filing: 1977-11-07
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Granted: 1979-10-09
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Expires: 1997-11-07
Abstract
Abstract A photosensitive polymer composition comprising (1) either a (a) soluble polymer and photopolymerizable ethylenically unsaturated compound or (b) soluble polymer having photopolymerizable ethylenically unsaturated groups in the polymer chain, and (2) about 0.001 to 10 parts, by weight, of ascorbic acids and/or their derivatives to about 100 parts, by weight, of 1(a) or 1(b).
Inventors
- 👤 Tadashi Akama
- 👤 Kuniyuki Sakai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:51
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; C; C08; C08F; C08F291/00; C08F291/18; C08K; C08K5/00; C08K5/16; C08K5/17; C09; C09D; C09D4/00; C09D4/06; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/107; Y10S430/114; Y10S430/118
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
108 words
A photosensitive polymer composition comprising: (1) a photohardenable composition comprising a soluble polymer selected from the group consisting of: (a) a soluble polymer and photopolymerizable ethylenically unsaturated compound(s), or (b) a soluble polymer having photopolymerizable ethylenically unsaturated groups in the polymer chain, and (2) about 0.001 to 10 parts, by weight, per 100 parts, by weight, of (1)(a) or (1)(b) of a member selected from the group consisting of the ascorbic acids and their derivatives, said member comprising either an ascorbic acid, ascorbic acid ester, or ascorbic acid salt moiety and being adapted to provide stability to heat and storage for said photohardenable composition of (1)(a) or (1)(b).
Claim 2
Dependent Claim
108 words
A photosensitive polymer composition comprising: (1) a photohardenable composition comprising a soluble polymer selected from the group consisting of: (a) a soluble polymer and photopolymerizable ethylenically unsaturated compound(s), or (b) a soluble polymer having photopolymerizable ethylenically unsaturated groups in the polymer chain, and (2) about 0.001 to 10 parts, by weight, per 100 parts, by weight, of (1)(a) or (1)(b) of a member selected from the group consisting of the ascorbic acids and their derivatives, said member comprising either an ascorbic acid, ascorbic acid ester, or ascorbic acid salt moiety and being adapted to provide stability to heat and storage for said photohardenable composition of (1)(a) or (1)(b).
Claim 3
Dependent Claim
31 words
The photosensitive polymer composition of claim 1, wherein said member (2) comprises a member selected from the group consisting of L-ascorbic acid, D-isoascorbic acid, L-ascorbyl monostearate, sodium L-ascorbate and sodium D-isoascorbate.
Claim 4
Dependent Claim
31 words
The photosensitive polymer composition of claim 1, which further comprises about 0.01 to 10 parts, by weight, of a photosensitizer or photoinitiator to 100 parts, by weight, of the photohardenable composition.
Claim 5
Dependent Claim
14 words
The photosensitive polymer composition of claim 3, wherein said photoinitiator is benzoin alkyl ether.
Claim 6
Dependent Claim
29 words
The photosensitive polymer composition of claim 1, further containing about 0.001 to 1 part, by weight, of an inhibitor based on 100 parts, by weight, of the photohardenable composition.
Claim 7
Dependent Claim
30 words
The photosensitive polymer composition of claim 5, wherein said inhibitor is selected from the group consisting of phenolic compounds, quinones, aromatic nitro compounds, aromatic amines, mercaptans, phenothiazine and phosphorus compounds.
Claim 8
Dependent Claim
14 words
The photosensitive polymer composition of claim 6 wherein said inhibitor is a phenolic compound.
Claim 9
Dependent Claim
29 words
The photosensitive polymer composition of claim 7, wherein said phenolic compound is selected from the group consisting of hydroquinone, hydroquinone monomethyl ether, 2,5-di-tertiary-butyl cresol, 2,5-di-tertiary-butyl hydroquinone, and tertiary-butyl catechol.
Claim 10
Dependent Claim
12 words
The photosensitive polymer composition of claim 6, wherein said inhibitor is α-thioglycerine.
Claim 11
Dependent Claim
105 words
A photosensitive polymer composition comprising: (1) a soluble polyamide prepared by copolymerization reaction of a dibasic acid having 2 to 12 carbon atoms with a diamine having 1 to 16 carbon atoms, (2) a photopolymerizable ethylenically unsaturated compound, and (3) about 0.001 to 10 parts, by weight, per 100 parts by weight of (1) and (2) of a member selected from the group consisting of the ascorbic acids and their derivatives, said member (3) comprising either an ascorbic acid, ascorbic acid ester, or ascorbic acid salt moiety and being adapted to provide stability to heat and storage for said polyamide (1) and and compound (2).
Claim 12
Dependent Claim
105 words
A photosensitive polymer composition comprising: (1) a soluble polyamide prepared by copolymerization reaction of a dibasic acid having 2 to 12 carbon atoms with a diamine having 1 to 16 carbon atoms, (2) a photopolymerizable ethylenically unsaturated compound, and (3) about 0.001 to 10 parts, by weight, per 100 parts by weight of (1) and (2) of a member selected from the group consisting of the ascorbic acids and their derivatives, said member (3) comprising either an ascorbic acid, ascorbic acid ester, or ascorbic acid salt moiety and being adapted to provide stability to heat and storage for said polyamide (1) and and compound (2).
Claim 13
Dependent Claim
53 words
The photosensitive polymer composition of claim 10 wherein said photopolymerizable ethylenically unsaturated compound (2) is a member selected from the group consisting of the following compounds: ##STR3## wherein R is alkylene, xylylene, cyclohexylene, or phenylene; and ##STR4## wherein R' is a polyalkylene glycol residue derived from glycol having 2 to 5 carbon atoms.
Claim 14
Dependent Claim
74 words
A photosensitive polymer composition comprising: (1) a soluble polymer selected from the group consisting of: (a) a soluble polymer and photopolymerizable ethylenically unsaturated compound(s), or (b) a soluble polymer having photopolymerizable ethylenically unsaturated groups in the polymer chain, and (2) about 0.001-10 parts, by weight, per 100 parts by weight of (1)(a) or (1)(b), of a member selected from the group consisting of L-ascorbic acid, D-isoascorbic acid, L-ascorbyl monostearate, sodium L-ascorbate and sodium D-isoascorbate.
Claim 15
Dependent Claim
74 words
A photosensitive polymer composition comprising: (1) a soluble polymer selected from the group consisting of: (a) a soluble polymer and photopolymerizable ethylenically unsaturated compound(s), or (b) a soluble polymer having photopolymerizable ethylenically unsaturated groups in the polymer chain, and (2) about 0.001-10 parts, by weight, per 100 parts by weight of (1)(a) or (1)(b), of a member selected from the group consisting of L-ascorbic acid, D-isoascorbic acid, L-ascorbyl monostearate, sodium L-ascorbate and sodium D-isoascorbate.
References Cited (Backward Citations)
US3615629A
Cited
USB437894I5
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-10-08 | 1983-04-09 | 1983-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-08 | 1987-04-09 | 1987-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-08 | 1991-04-09 | 1991-10-09 | $7700.00 | Window Closed / Lapsed |