US3878076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photocurable composition and a method of preparing same
Assignee: Nok Corp
•
Filing: 1973-06-13
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Granted: 1975-04-15
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Expires: 1993-06-13
Abstract
Abstract A photocurable composition and a method of preparing the composition are disclosed. The composition includes (a) a polyester having a photopolymerizable group in its side chains, obtained by a ring-opening alternating copolymerization of a glycidyl ester of a photopolymerizable Alpha , Beta unsaturated carboxylic acid and a carboxylic acid anhydride, and (b) a photopolymerization initiator. The composition may also include a photopolymerizable monomer.
Inventors
- 👤 Tadatomi Nishikubo
- 👤 Masahiko Kishida
- 👤 Masakazu Imaura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:03
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/56; C08G63/58; C08F; C08F299/00; C08F299/02; C08F299/04; C08F299/0407; C08F299/0421; C08F299/0428; C08F299/0435; G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/032; G03F7/038; G03F7/0388; Y; Y10; Y10S; Y10S525/00; Y10S525/904
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
14 words
A PHOTOCURABLE COMPOSITION COMPRISING (A) A POLYESTER HAVING A REPEATING UNIT OF THE FORMULA:
Claim 2
Dependent Claim
14 words
A PHOTOCURABLE COMPOSITION COMPRISING (A) A POLYESTER HAVING A REPEATING UNIT OF THE FORMULA:
Claim 3
Dependent Claim
30 words
A photocurable composition as defined in claim 1, wherein said composition includes a photopolymerizable monomer selected from the group consisting of acrylic acid ester monomer and methacrylic acid ester monomer.
Claim 4
Dependent Claim
29 words
A photocurable composition as defined in claim 2, wherein the photopolymerizable monomer is employed in the amount of up to about 70 percent by weight of the total composition.
Claim 5
Independent Claim
25 words
A method of preparing a polyester directly in the form of a solvent solution in which the polyester has a repeating unit of the formula:
Claim 6
Independent Claim
25 words
A method of preparing a polyester directly in the form of a solvent solution in which the polyester has a repeating unit of the formula:
Claim 7
Independent Claim
18 words
A method of preparing a photocurable composition, comprising (a) a polyester having a repeating unit of the formula:
Claim 8
Independent Claim
18 words
A method of preparing a photocurable composition, comprising (a) a polyester having a repeating unit of the formula:
References Cited (Backward Citations)
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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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |