US4045317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable polyene-polythiol compounds and methods for preparation and curing
Assignee: WR Grace and Co Conn
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Filing: 1976-06-11
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Granted: 1977-08-30
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Expires: 1996-06-11
Abstract
Abstract The invention disclosed is directed to new curable liquid polyene-polythiol compounds containing particular polar groups, at least one unsaturated carbon-to-carbon bond disposed at a terminal position on a main or pendant chain of the molecule and at least one terminally disposed thiol group, with the sum of the unsaturated bonds and thiol groups per polyene-polythiol molecule being at least 3. Upon curing in the presence of a free radical generator such as actinic radiation, the polar polyene-polythiol compounds form solid elastomeric and rigid products which are useful in a variety of applications including coatings, adhesives, sealants and molded articles.
Inventors
- 👤 Donald W. Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:03
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/28; C08F; C08F126/00; C08F126/02; C08G; C08G75/00; C08G75/02; C08G75/04; C08G75/045; C08J2381/00; C08J2381/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31533; Y10T428/31678; Y10T428/31692; Y10T428/31696; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
15 words
A method for forming a solid article comprising exposing a compound having the formula ##STR34##
Claim 2
Independent Claim
15 words
A method for forming a solid article comprising exposing a compound having the formula ##STR34##
Claim 3
Dependent Claim
13 words
The method of claim 1 wherein the free radical generator is actinic radiation.
Claim 4
Dependent Claim
23 words
The method of claim 2 wherein 0.0005-50 parts by weight of the compound of a photocuring rate accelerator is added to the compound.
Claim 5
Dependent Claim
14 words
The method of claim 1 wherein the free radical generator is high energy radiation.
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) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |