US4025548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation curable oligomers
Assignee: OBrien Corp
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Filing: 1974-02-04
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Granted: 1977-05-24
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Expires: 1994-02-04
Abstract
Abstract Oligomers produced by reacting low molecular weight epoxy compounds and low molecular weight mono-hydroxy vinyl compounds having at least one vinylic unsaturation, either in the form of vinyl groups, allylic, acrylic or methacrylic radicals attached thereto, wherein the resulting oligomers have more than one vinylic group per molecule.
Inventors
- 👤 Thomas F. Huemmer
- 👤 Bruce A. Edison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:58
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2603; C08G65/2615; C08J; C08J3/00; C08J3/28
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
80 words
A radiation-curable oligomer which comprises a prepolymer reaction product produced when an epoxy compound is cationically initiated in the presence of at least a stoichiometric equivalent amount of a vinyl mono-hydroxy terminator compound, wherein said epoxy compound has a molecular weight between 70 and 2000 and wherein said epoxy compound contains between 1 and 6 epoxy groups per molecule and wherein said prepolymer reaction product has a plurality of radiation sensitive vinyl groups and is substantially free of oxirane oxygen.
Claim 2
Dependent Claim
80 words
A radiation-curable oligomer which comprises a prepolymer reaction product produced when an epoxy compound is cationically initiated in the presence of at least a stoichiometric equivalent amount of a vinyl mono-hydroxy terminator compound, wherein said epoxy compound has a molecular weight between 70 and 2000 and wherein said epoxy compound contains between 1 and 6 epoxy groups per molecule and wherein said prepolymer reaction product has a plurality of radiation sensitive vinyl groups and is substantially free of oxirane oxygen.
Claim 3
Dependent Claim
16 words
A radiation curable oligomer, as described in claim 1, wherein said polyepoxy material is approximately difunctional.
Claim 4
Dependent Claim
23 words
A radiation curable oligomer, as described in claim 2, wherein said epoxy compound has a molecular weight between about 150 and about 600.
Claim 5
Dependent Claim
23 words
A radiation curable oligomer, as described in claim 3, wherein polyepoxy difunctional compound has an epoxy equivalent weight between about 75 and 300.
Claim 6
Dependent Claim
25 words
A radiation curable oligomer, as described in claim 1, wherein the epoxy compound is an epoxidized oil having a functionality between about 2 and 6.
Claim 7
Dependent Claim
23 words
A radiation curable oligomer, as described in claim 5, wherein the epoxidized oil has an epoxy equivalent weight between about 175 and 750.
Claim 8
Dependent Claim
22 words
A radiation curable oligomer, as described in claim 1, wherein said vinyl mono-hydroxy compound contains more than 1 vinyl group per molecule.
Claim 9
Dependent Claim
20 words
A radiation curable oligomer, as described in claim 7, wherein said vinyl mono-hydroxy compound contains at least one acrylate group.
Claim 10
Dependent Claim
20 words
A radiation curable oligomer, as described in claim 8, wherein said radiation sensitive vinyl mono-hydroxy compound is a pentaerthyritol triacrylate.
Claim 11
Dependent Claim
26 words
A radiation curable oligomer, as described in claim 8, wherein said radiation sensitive vinyl mono-hydroxy composition comprises a mixture of a hydroxyalkyl acrylate and pentaerthyritol triacrylate.
Claim 12
Dependent Claim
28 words
A radiation curable oligomer, as described in claim 1, wherein said epoxy compound is mono-functional and has a molecular weight in the range of about 70 to 250.
Claim 13
Dependent Claim
22 words
A radiation curable oligomer, as described in claim 11, wherein said vinyl mono-hydroxy compound contains at least 2 vinyl groups per molecule.
Claim 14
Dependent Claim
20 words
A radiation curable oligomer, as described in claim 12, wherein said vinyl mono-hydroxy compound contains at least one acrylate group.
Claim 15
Dependent Claim
20 words
A radiation curable oligomer, as described in claim 13, wherein said radiation sensitive vinyl mono-hydroxy compound is a pentaerthyritol triacrylate.
Claim 16
Dependent Claim
27 words
A radiation curable oligomer, as described in claim 13, wherein said radiation sensitive vinyl mono-hydroxy composition comprises a mixture of a hydroxy alkyl acrylate and pentaerthyritol triacrylate.
References Cited (Backward Citations)
US3551246A
Cited
US3551311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-23 | 1980-11-22 | 1981-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-23 | 1984-11-22 | 1985-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-23 | 1988-11-22 | 1989-05-24 | $7700.00 | Window Closed / Lapsed |