US3725504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fast curing polychloroprene acrylic adhesive
Assignee: Lord Corp
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Filing: 1970-12-30
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Granted: 1973-04-03
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Expires: 1990-12-30
Abstract
Abstract An adhesive composition capable of curing in a matter of minutes in the presence of free radical vinyl polymerization catalysis consisting essentially of: A, from about 10 to about 52 percent, by weight, of a syrupy copolymer of polychloroprene, methylmethacrylate and styrene; B, from about 7 to below about 15 percent of methacrylic acid, and C, from about 40 to about 83 percent of a solution of an acrylate polymer in methylmethacrylate.
Inventors
- 👤 W Owston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:46
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02; C09; C09J; C09J4/00; C09J4/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
23 words
The composition of claim 1 wherein the polychlorprene in component A is present in an amount from about 12 to about 20 percent.
Claim 2
Dependent Claim
43 words
The composition of claim 1 wherein the relative proportions of A, B and C are from about 15 to about 50 percent of A, from about 8 to about 12 percent of B and from about 42 to about 75 percent of C.
Claim 3
Dependent Claim
23 words
The composition of claim 3 wherein the polychloroprene in component A is present in an amount from about 12 to about 20 percent.
Claim 4
Dependent Claim
14 words
The composition of claim 1 wherein the acrylate polymer in component C is polymethylmethacrylate.
Claim 5
Dependent Claim
23 words
The composition of claim 5 wherein the polychlorprene in component A is present in an amount from about 12 to about 20 percent.
Claim 6
Dependent Claim
43 words
The composition of claim 5 wherein the relative proportions of A, B and C are from about 15 to about 50 percent of A, from about 8 to about 12 percent of B and from about 42 to about 75 percent of C.
Claim 7
Dependent Claim
23 words
The composition of claim 7 wherein the polychloroprene in component A is present in an amount from about 12 to about 20 percent.
Claim 8
Dependent Claim
16 words
The composition of claim 1 wherein said acrylate polymer comprises an interpolymer of methylmethacrylate and ethylacralate.
Claim 9
Dependent Claim
23 words
The composition of claim 9 wherein the polychloroprene in component A is present in an amount from about 12 to about 20 percent.
Claim 10
Dependent Claim
43 words
The composition of claim 9 wherein the relative proportions of A, B and C are from about 15 to about 50 percent of A, from about 8 to about 12 percent of B and from about 42 to about 75 percent of C.
Claim 11
Dependent Claim
23 words
The composition of claim 11 wherein the polychloroprene in component A is present in an amount from about 12 to about 20 percent.
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) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |