US4057535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive for gluing together soft body tissues
Assignee: Individual
•
Filing: 1976-04-14
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Granted: 1977-11-08
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Expires: 1996-04-14
Abstract
Abstract An adhesive for gluing together soft body tissues, which has the following composition, wt.%: aromatic diisocyanate, from 1 to 50 Macrodiisocyanate of the general formula ##STR1## where R is an aromatic diisocyanate radical; R' is a polyether or polyester radical, from 98.9 to 30; 2,4,6-tris(dimethylaminomethyl)phenol, from 0.1 to 20. The proposed adhesive is effective for gluing together soft body tissues in a tissue fluid medium; it is highly elastic; it is rapidly intergrown with live tissues and eliminated from the body; and it has a controlled setting time.
Inventors
- 👤 Tatyana Esperovna Lipatova
- 👤 Roman Alexandrovich Veselovsky
- 👤 Georgy Alexandrovich Pkhakadze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:53
CPC Classifications
C; C09; C09J; C09J175/00; C09J175/04; A; A61; A61L; A61L24/00; A61L24/04; A61L24/046; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/16; C08G18/18; C08G18/1825; Y; Y10; Y10S; Y10S521/00; Y10S521/905
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
45 words
An adhesive for gluing together soft body tissues, which has the following composition, wt.%: aromatic diisocyanate, from 1 to 50 macrodiisocyanate of the general formula ##STR5## where R is an aromatic diisocyanate radical R' is a polyether or polyester radical, from 98.9 to 30 2.
Claim 2
Dependent Claim
45 words
An adhesive for gluing together soft body tissues, which has the following composition, wt.%: aromatic diisocyanate, from 1 to 50 macrodiisocyanate of the general formula ##STR5## where R is an aromatic diisocyanate radical R' is a polyether or polyester radical, from 98.9 to 30 2.
Claim 3
Dependent Claim
29 words
4,6-tris(dimethylaminomethyl)phenol, from 0.1 to 20. 2. An adhesive as set forth in claim 1, wherein the aromatic diisocyanate is selected from the group consisting of toluylenediisocyanate, 4,4'-diphenylmethanediisocyanate and naphthylenediisocyanate.
Claim 4
Dependent Claim
51 words
An adhesive as set forth in claim 1, wherein the macrodiisocyanate has the formula ##STR6## where R is a radical of an aromatic diisocyanate selected from the group consisting of toluylenediisocyanate, 4,4'-diphenylmethanediisocyanate and naphthylenediisocyanate; R' is a radical of a polyester selected from the group consisting of polydiethyleneglycoladipate, polyethyleneglycoladipate and polydiethyleneglycolsebacate.
Claim 5
Dependent Claim
63 words
An adhesive as set forth in claim 1, wherein the macrodiisocyanate has the formula ##STR7## where R is a radical or an aromatic diisocyanate selected from the group consisting of toluylenediisocyanate, 4,4'-diphenylmethanediisocyanate and naphthylenediisocyanate; R' is a radical of a polyether selected from the group consisting of polyhydroxypropyleneglycol, polyhydroxyethyleneglycol, polytetramethyleneglycol, the copolymer of propyleneglycol with ethyleneglycol, and the copolymer of propyleneglycol with tetramethyleneglycol.
Claim 6
Dependent Claim
21 words
An adhesive for gluing together soft body tissues, which has the following composition, wt.%: toluylenediisocyanate, 10 macrodiisocyanate of the formula ##STR8##
Claim 7
Dependent Claim
21 words
An adhesive for gluing together soft body tissues, which has the following composition, wt.%: toluylenediisocyanate, 10 macrodiisocyanate of the formula ##STR8##
Claim 8
Dependent Claim
2 words
4,6-tris(dimethylaminomethyl)phenol, 20.
Claim 9
Dependent Claim
2 words
4,6-tris(dimethylaminomethyl)phenol, 20.
Claim 10
Dependent Claim
21 words
An adhesive for gluing together soft body tissues, which has the following composition, wt.%: toluylenediisocyanate, 10 macrodiisocyanate of the formula ##STR9##
Claim 11
Dependent Claim
21 words
An adhesive for gluing together soft body tissues, which has the following composition, wt.%: toluylenediisocyanate, 10 macrodiisocyanate of the formula ##STR9##
Claim 12
Dependent Claim
2 words
4,6-tris(dimethylaminomethyl)phenol, 10.
Claim 13
Dependent Claim
2 words
4,6-tris(dimethylaminomethyl)phenol, 10.
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) | 1980-11-07 | 1981-05-09 | 1981-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-07 | 1985-05-09 | 1985-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-07 | 1989-05-09 | 1989-11-08 | $7700.00 | Window Closed / Lapsed |