Patent US4174311A successfully refreshed from Google Patents.
US4174311A
Expired / Lapsed
US
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Hardenable composition containing diisopropylbenzene dihydroperoxide
Assignee: Denka Co Ltd
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Filing: 1977-12-21
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Granted: 1979-11-13
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Expires: 1997-12-21
Abstract
Abstract A hardenable composition comprises (1) an acrylate and/or methacrylate monomer; (2) diisopropylbenzene dihydroperoxide as a hardener and a hardening accelerator.
Inventors
- 👤 Tatsuo Nakano
- 👤 Shozo Hori
- 👤 Ikuji Kishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:19
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/10; C09D; C09D4/00; C09J; C09J4/00; C09K2200/00; C09K2200/06; C09K2200/0615; C09K2200/0625
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
59 words
A hardenable composition which consists essentially of (1) an acrylate and/or a methacrylate monomer, wherein the monomer contains more than 50 wt. % of acrylate and/or methacrylate, (2) more than 0.5 wt. part of a hardener consisting essentially of diisopropylbenzene dihydroperoxide and (3) more than 0.01 wt. part of a hardening accelerator to 100 wt. parts of total monomers.
Claim 2
Dependent Claim
59 words
A hardenable composition which consists essentially of (1) an acrylate and/or a methacrylate monomer, wherein the monomer contains more than 50 wt. % of acrylate and/or methacrylate, (2) more than 0.5 wt. part of a hardener consisting essentially of diisopropylbenzene dihydroperoxide and (3) more than 0.01 wt. part of a hardening accelerator to 100 wt. parts of total monomers.
Claim 3
Dependent Claim
18 words
A hardenable composition according to claim 1 wherein three components are stored in a form of mixture thereof.
Claim 4
Dependent Claim
21 words
A hardenable composition according to claim 1 wherein the acrylate and/or methacrylate is admixed with diisopropylbenzene dihydroperoxide and a polymerization inhibitor.
Claim 5
Dependent Claim
18 words
A hardenable composition according to claim 1 wherein the acrylate and/or methacrylate is admixed with the hardening accelerator.
Claim 6
Dependent Claim
16 words
A hardenable composition according to claim 1 wherein a paraffin wax is incorporated in the composition.
Claim 7
Dependent Claim
27 words
A hardenable composition according to claim 1 wherein an inorganic or organic powder for a viscosity control or for a modification of the hardened product is incorporated.
Claim 8
Dependent Claim
19 words
A hardenable composition according to claim 1 wherein the hardening accelerator is a reducing agent of a redox catalyst.
Claim 9
Dependent Claim
79 words
A hardenable composition comprising two components which can be separately stored prior to final admixing wherein component A comprises an acrylate and/or a methacrylate monomer and more than 0.5 wt. part of a hardener consisting essentially of diisopropylbenzene dihydroperoxide and component B comprises an acrylate and/or methacrylate monomer and more than 0.01 wt. part of a hardening accelerator to 100 wt. parts of total monomers, wherein the total monomer contains more than 50 wt. % of acrylate and/or methacrylate.
Claim 10
Dependent Claim
79 words
A hardenable composition comprising two components which can be separately stored prior to final admixing wherein component A comprises an acrylate and/or a methacrylate monomer and more than 0.5 wt. part of a hardener consisting essentially of diisopropylbenzene dihydroperoxide and component B comprises an acrylate and/or methacrylate monomer and more than 0.01 wt. part of a hardening accelerator to 100 wt. parts of total monomers, wherein the total monomer contains more than 50 wt. % of acrylate and/or methacrylate.
Claim 11
Dependent Claim
15 words
A hardenable composition according to claim 8, wherein component A also includes a polymerization inhibitor.
References Cited (Backward Citations)
CA563899A
Cited
US2232515A
Cited
US2649425A
Cited
US2626968A
Cited
US2638460A
Cited
US2950270A
Cited
US3137681A
Cited
GB913590A
Cited
US3853827A
Cited
US3851017A
Cited
US3970505A
Cited
US4052547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-11-12 | 1983-05-14 | 1983-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-12 | 1987-05-14 | 1987-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-12 | 1991-05-14 | 1991-11-13 | $7700.00 | Window Closed / Lapsed |