Patent US3896077A successfully refreshed from Google Patents.
US3896077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater adhesive
Assignee: Individual
•
Filing: 1970-11-30
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Granted: 1975-07-22
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Expires: 1990-11-30
Abstract
Abstract Pastes of Alpha -cyanoacrylic acid esters and insoluble fillers can be applied to surfaces submerged in water for securing thereto, in situ, a wide variety of metallic and non-metallic substances.
Inventors
- 👤 Fred Leonard
- 👤 George Brandes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:14
CPC Classifications
C; C09; C09J; C09J4/00; A; A61; A61K; A61K6/00; A61K6/80; A61K6/884; A61K6/887
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
108 words
A COMPOSITION HAVING A PASTE-LIKE CONSISTENCY AND CONTAINING, AS ESSENTIAL INGREDIENTS, (A) AT LEAST ONE B-UNSUBSTITUTED A-CYANOACRYLIC ACID ESTER WHICH IS LIQUID AT ROOM TEMPERATURE AND ATMOSPHERIC PRESSURE, THE A-CYANOACRYLIC ACID ESTER CONSISTING OF THE ACYL GROUP H2C=C(CN)-COO-AND A GROUP A CARBON ATOM OF WHICH IS DIRECTLY BOUND TO THE AVAILABLE BOND OF AN OXYGEN ATOM OF SAID ACYL GROUP, AND (B) WATER-INSOLUBLE SOLID FILLER WHICH IS ESSENTIALLY INERT WITH RESPCT TO THE A-CYANOACRYLIC ACID ESTER AND INSOLUBLE THEREIN, THE FILLER BEING CAPABLE OF FORMING A PASTE-LIKE CONSISTENCY WITH THE A-CYANOACRYLIC ACID ESTER AND BEING PRESENT IN THE COMPOSITION IN AN AMOUNT SUFFICIENT TO FORM THE PASTE-LIKE CONSISTENCY.
Claim 2
Dependent Claim
108 words
A COMPOSITION HAVING A PASTE-LIKE CONSISTENCY AND CONTAINING, AS ESSENTIAL INGREDIENTS, (A) AT LEAST ONE B-UNSUBSTITUTED A-CYANOACRYLIC ACID ESTER WHICH IS LIQUID AT ROOM TEMPERATURE AND ATMOSPHERIC PRESSURE, THE A-CYANOACRYLIC ACID ESTER CONSISTING OF THE ACYL GROUP H2C=C(CN)-COO-AND A GROUP A CARBON ATOM OF WHICH IS DIRECTLY BOUND TO THE AVAILABLE BOND OF AN OXYGEN ATOM OF SAID ACYL GROUP, AND (B) WATER-INSOLUBLE SOLID FILLER WHICH IS ESSENTIALLY INERT WITH RESPCT TO THE A-CYANOACRYLIC ACID ESTER AND INSOLUBLE THEREIN, THE FILLER BEING CAPABLE OF FORMING A PASTE-LIKE CONSISTENCY WITH THE A-CYANOACRYLIC ACID ESTER AND BEING PRESENT IN THE COMPOSITION IN AN AMOUNT SUFFICIENT TO FORM THE PASTE-LIKE CONSISTENCY.
Claim 3
Dependent Claim
38 words
A composition according to claim 1 having 1 to 3 parts by weight of the ester, from 1 to 3 parts by weight of the filler and from 0 to 0.3 part by weight of finely divided silica.
Claim 4
Dependent Claim
13 words
A composition according to claim 2 wherein each ester is an alkyl ester.
Claim 5
Dependent Claim
21 words
A composition according to claim 3 wherein the alkyl of at least one ester has from 1 to 3 carbon atoms.
Claim 6
Dependent Claim
14 words
A composition according to claim 4 wherein the sole ester is propyl- Alpha -cyanoacrylate.
Claim 7
Dependent Claim
21 words
A composition according to claim 3 wherein the alkyl of at least one ester has from 4 to 8 carbon atoms.
Claim 8
Dependent Claim
59 words
A composition according to claim 2 wherein each Alpha -cyanoacrylic acid ester is a monomer of the formula H2C C(CN)-CO-OR wherein R is a member selected from the group consisting of alkyl having from 1 to 10 carbon atoms; alkoxyalkyl having from 1 to 10 atoms, the alkoxy having from 1 to 4 carbon atoms; cyclohexyl; phenyl and allyl.
Claim 9
Dependent Claim
81 words
A composition according to claim 7 in which said filler comprises at least one member selected from the group consisting of calcium carbonate, calcium sulfate dihydrate, calcium oxide, calcium sulfate, titanium dioxide, zinc oxide, zinc hydroxide, magnesium oxide, stannic oxide, stannous oxide, aluminum oxide, aluminum silicate, calcium silicate, zinc silicate, calcium aluminate, mercuric oxide, silver oxide, cuprous oxide, cupric oxide, strontium oxide, ferrous oxide, ferric oxide, zinc phosphate, calcium phosphate, aluminum phosphate, talc, barium sulfate, barium carbonate and calcium sulfate hemihydrate.
Claim 10
Dependent Claim
14 words
A composition according to claim 2 wherein the filler is inorganic and weakly alkaline.
Claim 11
Dependent Claim
13 words
A composition according to claim 2 wherein the filler is inorganic and neutral.
Claim 12
Dependent Claim
13 words
A composition according to claim 2 wherein the filler is inorganic and acidic.
Claim 13
Dependent Claim
33 words
A composition according to claim 2 wherein the filler comprises at least one member selected from the group consisting of calcium carbonate, calcium sulfate hemihydrate, calcium sulfate dihydrate, calcium sulfate and barium carbonate.
Claim 14
Dependent Claim
11 words
A composition according to claim 2 containing finely divided amorphous silica.
Claim 15
Dependent Claim
60 words
A composition according to claim 2 having from 0 to 0.2 part by weight of finely divided silica and wherein the Alpha -cyanoacrylic acid ester has an acidic inhibitor content such that one gram of said ester admixed with 0.2 gram of sodium chloride and 50 milliliters of water results in an admixture having a pH from 2.45 to 4.1.
Claim 16
Dependent Claim
17 words
A composition according to claim 13 wherein the sole Alpha -cyanoacrylic acid ester is n-butyl- Alpha -cyanoacrylate.
Claim 17
Dependent Claim
17 words
A composition according to claim 13 wherein the sole Alpha -cyanoacrylic acid ester is isobutyl- Alpha -cyanoacrylate.
Claim 18
Dependent Claim
17 words
A composition according to claim 13 wherein the sole Alpha -cyanoacrylic acid ester is amyl- Alpha -cyanoacrylate.
Claim 19
Dependent Claim
17 words
A composition according to claim 13 wherein the sole Alpha -cyanoacrylic acid ester is hexyl- Alpha -cyanoacrylate.
Claim 20
Dependent Claim
17 words
A composition according to claim 14 wherein the sole Alpha -cyanoacrylic acid ester is heptyl- Alpha -cyanoacrylate.
Claim 21
Dependent Claim
17 words
A composition according to claim 14 wherein the sole Alpha -cyanoacrylic acid ester is octyl- Alpha -cyanoacrylate.
Claim 22
Dependent Claim
17 words
A composition according to claim 14 wherein the sole Alpha -cyanoacrylic acid ester is 2-ethylhexyl- Alpha -cyanoacrylate.
Claim 23
Dependent Claim
30 words
A process for preparing a composition according to claim 14 which comprises admixing the Alpha -cyanoacrylic acid ester with the filler and any silica until a smooth paste is obtained.
Claim 24
Dependent Claim
14 words
A composition according to claim 1 containing a free-radical-inhibiting amount of monomethylether of hydroquinone.
Claim 25
Dependent Claim
13 words
A composition according to claim 1 consisting essentIally of ingredients (a) and (b).
References Cited (Backward Citations)
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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) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |