US4450302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peroxide blends
Assignee: Hercules LLC
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Filing: 1982-08-09
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Granted: 1984-05-22
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Expires: 2002-08-09
Abstract
Abstract Disclosed are novel blends of peroxides that have melting points of about 5° C. and lower. The blends consist essentially of (1) t-butyl cumyl peroxide, (2) bis(α-t-butylperoxyisopropyl)benzene, and (3) dicumyl peroxide.
Inventors
- 👤 Chester R. Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:39
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
87 words
As a new composition of matter, a peroxide blend having a melting point of about 5° C. and lower consisting essentially of: (1) from about 40% to about 60% t-butyl cumyl peroxide; (2) from about 5% to about 25% of a mixture of the meta and para isomers of bis(α-t-butylperoxyisopropyl) benzene, the mixture of meta and para isomers being in the proportion of between 1.5:1 to 4:1; and (3) dicumyl peroxide in an amount sufficient to make the total of (1), (2) and (3) equal to 100%.
Claim 2
Dependent Claim
87 words
As a new composition of matter, a peroxide blend having a melting point of about 5° C. and lower consisting essentially of: (1) from about 40% to about 60% t-butyl cumyl peroxide; (2) from about 5% to about 25% of a mixture of the meta and para isomers of bis(α-t-butylperoxyisopropyl) benzene, the mixture of meta and para isomers being in the proportion of between 1.5:1 to 4:1; and (3) dicumyl peroxide in an amount sufficient to make the total of (1), (2) and (3) equal to 100%.
Claim 3
Dependent Claim
87 words
As a new composition of matter, a peroxide blend having a melting point of about 5° C. and lower consisting essentially of: (1) from about 45% to about 55% t-butyl cumyl peroxide; (2) from about 10% to about 25% of a mixture of the meta and para isomers of bis(α-t-butylperoxyisopropyl) benzene, the mixture of meta and para isomers being in the proportion of between 1.5:1 to 4:1; and (3) dicumyl peroxide in an amount sufficient to make the total of (1), (2) and (3) equal to 100%.
Claim 4
Dependent Claim
87 words
As a new composition of matter, a peroxide blend having a melting point of about 5° C. and lower consisting essentially of: (1) from about 45% to about 55% t-butyl cumyl peroxide; (2) from about 10% to about 25% of a mixture of the meta and para isomers of bis(α-t-butylperoxyisopropyl) benzene, the mixture of meta and para isomers being in the proportion of between 1.5:1 to 4:1; and (3) dicumyl peroxide in an amount sufficient to make the total of (1), (2) and (3) equal to 100%.
Claim 5
Dependent Claim
27 words
The composition of claim 1 wherein peroxide (2) of the blend is a mixture of the meta and para isomers in the ratio of 1.93 to 1.
Claim 6
Dependent Claim
27 words
The composition of claim 1 wherein peroxide (2) of the blend is a mixture of the meta and para isomers in the ratio of 4 to 1.
Claim 7
Dependent Claim
27 words
The composition of claim 2 wherein peroxide (2) of the blend is a mixture of the meta and para isomers in the ratio of 1.93 to 1.
Claim 8
Dependent Claim
27 words
The composition of claim 2 wherein peroxide (2) of the blend is a mixture of the meta and para isomers in the ratio of 4 to 1.
References Cited (Backward Citations)
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Cited
US2888424A
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US3079370A
Cited
US2826570A
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US4239644A
Cited
US4202790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-22 | 1987-11-21 | 1988-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-22 | 1991-11-21 | 1992-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-22 | 1995-11-21 | 1996-05-22 | $7700.00 | Window Closed / Lapsed |