US4340707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid, UV-hardenable coating agent and binder
Assignee: Roehm GmbH Darmstadt
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Filing: 1980-10-17
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Granted: 1982-07-20
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Expires: 2000-10-17
Abstract
Abstract What is disclosed are a liquid coating and binding agent, hardenable under the influence of ultraviolet radiation, comprising an oligomer of the formula [(CH.sub.2 ═CHCOO).sub.m ROOCC.sub.2 H.sub.4 ].sub.2 S or [(CH.sub.2 ═CHCOO).sub.m ROOCC.sub.2 H.sub.4 S].sub.p R', and a method for its preparation by the reaction of hydrogen sulfide or of a polymercaptan of the formula R'(SH)p with a polyacrylic acid ester of the formula (CH.sub.2 ═CHCOO).sub.m+1 R.
Inventors
- 👤 Peter Quis
- 👤 Theodor Schroth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:29
CPC Classifications
C; C09; C09D; C09D4/00; C09J; C09J4/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31573; Y10T428/31576; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
98 words
A liquid coating agent and binder, hardenable under the influence of ultraviolet radiation, comprising at least one oligomer of the formula [(CH.sub.2 ═CHCOO).sub.m ROOCC.sub.2 H.sub.4 ].sub.2 S wherein R is an (m+1)-valent aliphatic group having 2 to 12 carbon atoms and is an aliphatic hydrocarbon group or two or more of such groups joined pairwise by an oxygen atom to form an ether or polyether and m is an integer from 1 to 3, said oligomer or oligomers having an average molecular weight between 370 and 1000 and an average double bond equivalent weight of at most 500.
Claim 2
Dependent Claim
98 words
A liquid coating agent and binder, hardenable under the influence of ultraviolet radiation, comprising at least one oligomer of the formula [(CH.sub.2 ═CHCOO).sub.m ROOCC.sub.2 H.sub.4 ].sub.2 S wherein R is an (m+1)-valent aliphatic group having 2 to 12 carbon atoms and is an aliphatic hydrocarbon group or two or more of such groups joined pairwise by an oxygen atom to form an ether or polyether and m is an integer from 1 to 3, said oligomer or oligomers having an average molecular weight between 370 and 1000 and an average double bond equivalent weight of at most 500.
Claim 3
Dependent Claim
21 words
A coating agent and binder as in claim 1 having a viscosity from 5000 to 70000 mPa s at 20° C.
Claim 4
Dependent Claim
21 words
A coating agent and binder as in claim 1 which additionally comprises a free-radically polymerizable monomer as a further hardenable component.
Claim 5
Dependent Claim
17 words
A coating and binding agent as in claim 1 which additionally comprises an ultraviolet sensitive polymerization initiator.
Claim 6
Dependent Claim
35 words
A coating and binding agent as in claim 4 wherein said ultraviolet sensitive polymerization initiator is a combination of a thioxanthone compound, a different conventional ultraviolet sensitive polymerization initiator, and a secondary or tertiary amine.
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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) | 1985-07-19 | 1986-01-18 | 1986-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-19 | 1990-01-18 | 1990-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-19 | 1994-01-18 | 1994-07-20 | $7700.00 | Window Closed / Lapsed |