US4273906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerizable acetylenic oligomers
Assignee: International Business Machines Corp
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Filing: 1980-03-20
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Granted: 1981-06-16
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Expires: 2000-03-20
Abstract
Abstract Soluble, polymerizable oligomers having a number average molecular weight of from about 200 to about 10,000, are obtained by treating triethynylbenzene with an oxygen-carrying, amine-basic cupric salt complex catalyst in the presence of a molar excess over the monomer of an aromatic monacetylenic capping agent. The oligomers are used to form polymers which are adhesives and coatings.
Inventors
- 👤 James Economy
- 👤 Mary Ann Flandera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:53
CPC Classifications
C; C08; C08F; C08F38/00; C07; C07C; C07C15/00; C07C15/40; C07C15/50; C07C2/00; C07C2/02; C07C2/04; C07C2/38; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/0805; C07F7/18; C07F7/1804; C07C2531/00; C07C2531/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
45 words
A soluble, polymerizable oligomer having a number average molecular weight of from about 200 to about 10,000 obtained by reacting triethynylbenzene with an oxygen-carrying amine-basic cupric salt complex catalyst in the presence of a molar excess over the monomer of an aromatic monoacetylenic capping agent.
Claim 2
Dependent Claim
45 words
A soluble, polymerizable oligomer having a number average molecular weight of from about 200 to about 10,000 obtained by reacting triethynylbenzene with an oxygen-carrying amine-basic cupric salt complex catalyst in the presence of a molar excess over the monomer of an aromatic monoacetylenic capping agent.
Claim 3
Dependent Claim
19 words
An oligomer as claimed in claim 1 in which the molecular weight is from about 400 to about 2,000.
Claim 4
Dependent Claim
14 words
An oligomer as claimed in claim 1 which contains at least two diacetylene groups.
Claim 5
Dependent Claim
14 words
An oligomer as claimed in claim 1 in which the capping agent is phenylacetylene.
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) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |