Patent US1366241A successfully refreshed from Google Patents.
Patent US4308118A successfully refreshed from Google Patents.
US4308118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deep section curable epoxy resin putty
Assignee: General Electric Co
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Filing: 1979-06-29
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Granted: 1981-12-29
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Expires: 1999-06-29
Abstract
Abstract A composition uniquely adapted for use as a heat and ultraviolet light hardenable putty for filling metal surfaces comprises an epoxidic prepolymer, a catalyst precursor combination comprising an aromatic sulfonium salt of a complex halogenide and an aromatic iodonium salt of a complex halogenide, a copper salt catalyst activator, and a mineral filler in an amount sufficient to produce a paste-like consistency.
Inventors
- 👤 Charles D. Dudgeon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:08
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/34; C08; C08G; C08G59/00; C08G59/18; C08G59/68; Y; Y10; Y10T; Y10T428/00; Y10T428/20
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
85 words
A polymerizable composition comprising (i) an epoxidic prepolymer; (ii) an effective amount of a catalyst precursor combination therefore comprising (a) from 10 to 90 parts by weight of an aromatic sulfonium salt of a complex halogenide and (b) from 90 to 10 parts by weight of an aromatic iodonium salt of a complex halogenide; (iii) a small but effective amount of a copper salt catalyst activator; and (iv) a mineral filler in an amount at least sufficient to produce a paste-like consistency in said composition.
Claim 2
Dependent Claim
85 words
A polymerizable composition comprising (i) an epoxidic prepolymer; (ii) an effective amount of a catalyst precursor combination therefore comprising (a) from 10 to 90 parts by weight of an aromatic sulfonium salt of a complex halogenide and (b) from 90 to 10 parts by weight of an aromatic iodonium salt of a complex halogenide; (iii) a small but effective amount of a copper salt catalyst activator; and (iv) a mineral filler in an amount at least sufficient to produce a paste-like consistency in said composition.
Claim 3
Dependent Claim
72 words
A composition as defined in claim 1 wherein said epoxidic prepolymer is selected from (a) an epoxidic ester having two epoxycycloalkyl groups; (b) an epoxy resin prepolymer consisting predominently of the monomeric diglycidyl ether of bisphenol-A; (c) a polyepoxidized phenol novolak or cresol novolak; (d) a polyglycidyl ether of a polyhydric alcohol; (e) a diepoxide of a cycloalkyl or alkylcycloalkyl hydrocarbon or ether; or (f) a mixture of any of the foregoing.
Claim 4
Dependent Claim
69 words
A polymerizable composition as defined in claim 1 which further comprises (v) a polyesterpolyol or polyether polyol, a carbonyl-terminated rubbery copolymer of butadiene and acrylonitrile, a hydroxy-terminated copolymer of butadiene and acrylonitrile, a glycidyl ether of a monohydric alcohol, or a mixture of any of the foregoing in an amount of up to one and one-half times the amount by weight of epoxidic prepolymer (i) present in said composition.
Claim 5
Dependent Claim
27 words
A composition as defined in claim 2 wherein said epoxidic ester (i)(a) is selected from 3,4-epoxycyclohexylmethyl 3,4-epoxycyclohexanecarboxylate, bis(3,4-epoxy-6-methylcyclohexylmethyl)adipate, bis(3,4-epoxycyclohexylmethyl)adipate or a mixture of any of the foregoing.
Claim 6
Dependent Claim
16 words
A composition as defined in claim 4 wherein said epoxidic ester (i)(a) is 3,4-epoxycyclohexylmethyl 3,4-epoxycyclohexane carboxylate.
Claim 7
Dependent Claim
32 words
A composition as defined in claim 1 wherein said catalyst precursor combination (ii) comprises from about 0.5 to about 15 parts by weight per 100 parts by weight of epoxidic prepolymer (i).
Claim 8
Dependent Claim
16 words
A composition as defined in claim 1 wherein said catalyst precursor component (ii)(a) comprises triphenylsulfonium hexaflurorantimonate.
Claim 9
Dependent Claim
24 words
A composition as defined in claim 1 wherein said catalyst precursor component (ii)(b) comprises diphenyliodonium hexafluoroarsenate, diphenyliodonium hexafluorophosphate or a mixture of the foregoing.
Claim 10
Dependent Claim
16 words
A composition as defined in claim 8 wherein said catalyst precursor component (ii)(b) comprises diphenyliodonium hexafluoroarsenate.
Claim 11
Dependent Claim
33 words
A composition as defined in claim 1 wherein said copper salt catalyst activator (iii) comprises from 0.1 to 10 parts by weight per 100 parts by weight of said catalyst precursor combination (ii).
Claim 12
Dependent Claim
36 words
A composition as defined in claim 1 wherein said copper salt catalyst activator (iii) comprises a copper halide, copper benzoate, copper stearate, copper gluconate, copper citrate, copper naphthenate or a mixture of any of the foregoing.
Claim 13
Dependent Claim
16 words
A composition as defined in claim 11 wherein said copper salt catalyst activator comprises copper naphthenate.
Claim 14
Dependent Claim
32 words
A composition as defined in claim 1 wherein said mineral filler (iv) comprises from about 10 to about 500 parts by weight per 100 parts by weight of epoxidic prepolymer component (i).
Claim 15
Dependent Claim
28 words
A composition as defined in claim 1 wherein said filler component (iv) is selected from barytes, silica, talc, mica dust, or a mixture of any of the foregoing.
Claim 16
Dependent Claim
14 words
A composition as defined in claim 14 wherein said filler component (iv) comprises talc.
Claim 17
Dependent Claim
14 words
A composition as defined in claim 3 wherein component (v) comprises a polyester polyol.
Claim 18
Dependent Claim
55 words
A method for filling depressions, for bridging protrusions or for joining adjacent surfaces in a substrate which comprises applying a filling, bridging or bonding amount of a composition as defined in claim 1 to said substrate and exposing said composition to radiant energy until the composition polymerizes and filling, bridging or bonding is substantially complete.
Claim 19
Dependent Claim
43 words
An article of manufacture which comprises a substrate at least a part of which has been filled, bridged or bonded by applying a composition as defined in claim 1 and exposing said composition to radiant energy until the composition has substantially completely polymerized.
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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) | 1984-12-28 | 1985-06-29 | 1985-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-28 | 1989-06-29 | 1989-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-28 | 1993-06-29 | 1993-12-29 | $7700.00 | Window Closed / Lapsed |