Patent US4205018A successfully refreshed from Google Patents.
US4205018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation curable resin composition
Assignee: Somar Corp
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Filing: 1978-11-03
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Granted: 1980-05-27
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Expires: 1998-11-03
Abstract
Abstract A resin composition is disclosed comprising, as essential ingredients, (I) a urethanized epoxy resin or a urethanized epoxy resin acrylate or methacrylate, (II) a ketone resin and (III) a cross-linkable or polymerizable compound containing at least two ethylenically unsaturated groups.
Inventors
- 👤 Kohtaro Nagasawa
- 👤 Osamu Ogitani
- 👤 Ryuichi Fujii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:23
CPC Classifications
C; C08; C08F; C08F290/00; C08F290/08; C08F290/14; C08F290/144; C08F290/02; C08F290/06; Y; Y10; Y10S; Y10S525/00; Y10S525/922
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
127 words
A radiation curable resin composition comprising, as essential ingredients: (I) a urethanized epoxy resin obtained by reacting a compound containing at least one epoxy group and at least one hydroxyl group with a compound containing at least one isocyanate group, or a urethanized epoxy resin acrylate or methacrylate obtained by the addition of acrylic acid or methacrylic acid to said urethanized epoxy resin; (II) a ketone resin obtained by condensing a ketone compound with an aldehyde, and (III) a cross-linkable or polymerizable compound containing at least two ethylenically unsaturated groups, wherein said Components (I), (II) and (III) are present in amounts of 2 to 55% by weight for Component (I), 5 to 40% by weight for Component (II), and 5 to 93% by weight for Component (III).
Claim 2
Dependent Claim
127 words
A radiation curable resin composition comprising, as essential ingredients: (I) a urethanized epoxy resin obtained by reacting a compound containing at least one epoxy group and at least one hydroxyl group with a compound containing at least one isocyanate group, or a urethanized epoxy resin acrylate or methacrylate obtained by the addition of acrylic acid or methacrylic acid to said urethanized epoxy resin; (II) a ketone resin obtained by condensing a ketone compound with an aldehyde, and (III) a cross-linkable or polymerizable compound containing at least two ethylenically unsaturated groups, wherein said Components (I), (II) and (III) are present in amounts of 2 to 55% by weight for Component (I), 5 to 40% by weight for Component (II), and 5 to 93% by weight for Component (III).
Claim 3
Dependent Claim
15 words
The resin composition of claim 1, wherein said Component (I) is a urethanized epoxy resin.
Claim 4
Dependent Claim
16 words
The resin composition of claim 1, wherein said Component (I) is a urethanized epoxy resin acrylate.
Claim 5
Dependent Claim
43 words
The resin composition of claim 2, wherein said Components (I), (II) and (III) are present in amounts of 5 to 50% by weight for Component (I), 5 to 40% by weight for Component (II), and 10 to 80% by weight for Component (III).
Claim 6
Dependent Claim
43 words
The resin composition of claim 3, wherein said Components (I), (II) and (III) are present in amounts of 2 to 55% by weight for Component (I), 5 to 40% by weight for Component (II), and 5 to 93% by weight for Component (III).
Claim 7
Dependent Claim
43 words
The resin composition of claim 4, wherein said Components (I), (II) and (III) are present in amounts of 10 to 40% by weight for Component (I), 20 to 35% by weight for Component (II) and 30 to 70% by weight for Component (III).
Claim 8
Dependent Claim
43 words
The resin composition of claim 5, wherein said Components (I), (II) and (III) are present in amounts of 5 to 40% by weight for Component (I), 15 to 30% by weight for Component (II) and 30 to 80% by weight for Component (III).
Claim 9
Dependent Claim
39 words
The resin composition of claim 1, wherein said ketone resin is a dehydro-condensation product of at least one member selected from the group consisting of dialkyl ketones, cycloalkylene ketones, alkylaryl ketones, and diaryl ketones; and a lower alkyl aldehyde.
Claim 10
Dependent Claim
37 words
The resin composition of claim 1, wherein said Component (III) is a cross-linking agent containing 2 to 6 unsaturated groups obtained by esterifying a compound having 2 to 6 hydroxyl groups with acrylic acid or methacrylic acid.
Claim 11
Dependent Claim
62 words
The resin composition of claim 1, wherein said Component (III) is a polymerizable oligomer selected from the group consisting of a polyester acrylate obtained by reacting a polyester prepolymer containing free carboxylic groups with a hydroxyalkyl acrylate or a hydroxyalkyl methacrylate, or a polyester acrylate obtained by reacting a polyester prepolymer containing a free hydroxyl group with acrylic acid or methacrylic acid.
Claim 12
Dependent Claim
36 words
The resin composition of claim 1, wherein said Component (III) is a urethane acrylate or a urethane methacrylate obtained by reacting a urethane prepolymer containing an isocyanate group with a hydroxyalkyl acrylate or a hydroxymethyl methacrylate.
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) | 1983-05-27 | 1983-11-26 | 1984-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-27 | 1987-11-26 | 1988-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-27 | 1991-11-26 | 1992-05-27 | $7700.00 | Window Closed / Lapsed |