US4886840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diluent for UV and EB curable resins
Assignee: Kohjin Holdings Co Ltd
•
Filing: 1987-01-05
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Granted: 1989-12-12
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Expires: 2007-01-05
Abstract
Abstract Acryloylmorpholine and/or methacryloylmorpholine useful as a reactive diluent for UV and EB curable resin compositions, which has low skin irritation, a little odor, low volatility, low weight loss and high workability and which provides, without imparing work environment, UV and EB curable compositions having a high curing rate and capable of forming films of high hardness with small deformation.
Inventors
- 👤 Hideaki Mukohyama
- 👤 Hiroshi Oka
- 👤 Kenji Shibusawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:16
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
60 words
A resin composition curable by irradiation with ultraviolet rays or electron beams, which comprises a photopolymerizable prepolymer and 5 to 50 parts by weight per 100 parts by weight of said prepolymer, of a compound of the formula wherein R is hydrogen atom or methyl group, said prepolymer being a (meth)acrylate prepolymer having a viscosity of more than 2,000 cps.
Claim 2
Dependent Claim
60 words
A resin composition curable by irradiation with ultraviolet rays or electron beams, which comprises a photopolymerizable prepolymer and 5 to 50 parts by weight per 100 parts by weight of said prepolymer, of a compound of the formula wherein R is hydrogen atom or methyl group, said prepolymer being a (meth)acrylate prepolymer having a viscosity of more than 2,000 cps.
Claim 3
Dependent Claim
31 words
The composition of claim 1, wherein the compound of formula (1) is present in an amount of 10 to 30 parts by weight per 100 parts by weight of said prepolymer.
Claim 4
Dependent Claim
36 words
The composition of claim 1, which contains a photopolymerizable monofunctional vinyl monomer in an amount such that the weighted average primary skin irritation index of said compound (1) and vinyl monomer is not more than 2.
Claim 5
Dependent Claim
28 words
The composition of claim 3, wherein the total amount of the compound (1) and vinyl monomer is from 5 to 50 % by weight based on said prepolymer.
Claim 6
Dependent Claim
11 words
The composition of claim 1, which contains a photopolymerizable polyfunctional monomer.
Claim 7
Dependent Claim
17 words
The composition of claim 1, which contains a photoinitiator in an amount sufficient to initiate the polymerization.
Claim 8
Dependent Claim
15 words
The composition of claim 6, wherein said photoinitiator is used in combination with a sensitizer.
Claim 9
Dependent Claim
12 words
The composition of claim 1, which has a viscosity below 3,000 cps.
References Cited (Backward Citations)
US3891441A
Cited
US3845056A
Cited
US3876594A
Cited
US4235686A
Cited
JPS53147024A
Cited
JPS5474102A
Cited
US4143013A
Cited
US4252888A
Cited
GB2195643A
Cited
JPS63130608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-11 | 1993-06-12 | 1993-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-11 | 1997-06-12 | 1997-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-11 | 2001-06-12 | 2001-12-12 | $7700.00 | Window Closed / Lapsed |