US4149988A
Expired / Lapsed
US
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Decomposition inhibitors for chloroisocyanurates
Assignee: Olin Corp
•
Filing: 1977-05-26
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Granted: 1979-04-17
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Expires: 1997-05-26
Abstract
Abstract Decomposition of chloroisocyanurates such as trichloroisocyanuric acid or alkali metal dichloroisocyanurates is inhibited by the presence of alkaline earth metal sulfates. The sulfates may be used in compositions with a solid chloroisocyanurate or they may be added separately, for example, to packages containing the chloroisocyanurate.
Inventors
- 👤 James P. Brennan
- 👤 John M. Casberg
- 👤 Clair H. Putnam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:02
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/48; A; A01; A01N; A01N59/00; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/30; C07D251/36; C11D3/395; C11D3/3951
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
35 words
A composition consisting of a solid chloroisocyanurate selected from the group consisting of trichloroisocyanuric acid, dichloroisocyanuric acid and alkali metal salts of dichloroisocyanuric acid and a decomposition inhibiting portion of an alkaline earth metal sulfate.
Claim 2
Dependent Claim
35 words
A composition consisting of a solid chloroisocyanurate selected from the group consisting of trichloroisocyanuric acid, dichloroisocyanuric acid and alkali metal salts of dichloroisocyanuric acid and a decomposition inhibiting portion of an alkaline earth metal sulfate.
Claim 3
Dependent Claim
25 words
The composition of claim 1 in which said decomposition inhibiting portion is from about 0.01 to about 20 percent by weight of said solid chloroisocyanurate.
Claim 4
Dependent Claim
24 words
The composition of claim 2 in which said alkaline earth metal sulfate is selected from the group consisting of calcium sulfate and magnesium sulfate.
Claim 5
Dependent Claim
15 words
The composition of claim 3 in which said chloroisocyanurate is trichloroisocyanuric acid or sodium dichloroisocyanurate.
Claim 6
Dependent Claim
14 words
The composition of claim 4 in which said alkaline earth metal sulfate is anhydrous.
Claim 7
Dependent Claim
25 words
The composition of claim 5 in which said decomposition inhibiting portion is from about 0.1 to about 15 percent by weight of said solid chloroisocyanurate.
Claim 8
Dependent Claim
15 words
The composition of claim 5 in which said alkaline earth metal sulfate is calcium sulfate.
Claim 9
Dependent Claim
15 words
The composition of claim 5 in which said alkaline earth metal sulfate is magnesium sulfate.
Claim 10
Dependent Claim
83 words
A moisture resistant package containing a solid chloroisocyanurate capable of evolving a gaseous chloramine compound on decomposition and a decomposition inhibitor selected from the group consisting of an alkaline earth metal sulfate and mixtures of said alkaline earth metal sulfate with an alkali metal bicarbonate or an alkali metal sulfite, which is capable of inhibiting the evolution of said gaseous chloramine compound, said solid chloroisocyanurate being selected from the group consisting of trichloroisocyanuric acid, dichloroisocyanuric acid and alkali metal salts of dichloroisocyanuric acid.
Claim 11
Dependent Claim
83 words
A moisture resistant package containing a solid chloroisocyanurate capable of evolving a gaseous chloramine compound on decomposition and a decomposition inhibitor selected from the group consisting of an alkaline earth metal sulfate and mixtures of said alkaline earth metal sulfate with an alkali metal bicarbonate or an alkali metal sulfite, which is capable of inhibiting the evolution of said gaseous chloramine compound, said solid chloroisocyanurate being selected from the group consisting of trichloroisocyanuric acid, dichloroisocyanuric acid and alkali metal salts of dichloroisocyanuric acid.
Claim 12
Dependent Claim
29 words
The moisture resistant package of claim 9 in which said decomposition inhibitor is present in an amount from about 0.01 to about 10 percent by weight of said chloroisocyanurate.
Claim 13
Dependent Claim
24 words
The moisture resistant package of claim 10 in which said decomposition inhibitor is selected from the group consisting of calcium sulfate and magnesium sulfate.
Claim 14
Dependent Claim
17 words
The moisture resistant package of claim 11 in which said chloroisocyanurate is trichloroisocyanuric acid or sodium dichloroisocyanurate.
Claim 15
Dependent Claim
32 words
The moisture resistant package of claim 12 in which said decomposition inhibitor is calcium sulfate present in an amount of from about 0.1 to about 1 percent by weight of said chloroisocyanurate.
Claim 16
Dependent Claim
18 words
The moisture resistant package of claim 10 in which said decomposition inhibitor is physically separate from said chloroisocyanurate.
Claim 17
Dependent Claim
26 words
The moisture resistant package of claim 9 in which said decomposition inhibitor is a mixture of said alkaline earth metal sulfate and an alkali metal bicarbonate.
Claim 18
Dependent Claim
34 words
The moisture resistant package of claim 15 in which said alkali metal bicarbonate is present in an amount of from about 10 to about 90 percent by weight of said alkaline earth metal sulfate.
Claim 19
Dependent Claim
26 words
The moisture resistant package of claim 16 in which said chloroisocyanurate is trichloroisocyanuric acid and said alkaline earth metal sulfate is calcium sulfate or magnesium sulfate.
Claim 20
Dependent Claim
25 words
The moisture resistant package of claim 17 in which said alkaline earth metal sulfate is calcium sulfate and said alkali metal bicarbonate is sodium bicarbonate.
Claim 21
Dependent Claim
26 words
The moisture resistant package of claim 14 in which said decomposition inhibitor is a mixture of said alkaline earth metal sulfate and an alkali metal sulfite.
Claim 22
Dependent Claim
34 words
The moisture resistant package of claim 19 in which said alkali metal sulfite is present in an amount of from about 10 to about 90 percent by weight of said alkaline earth metal sulfate.
Claim 23
Dependent Claim
20 words
The moisture resistant package of claim 20 in which said alkaline earth metal sulfate is calcium sulfate or magnesium sulfate.
Claim 24
Dependent Claim
14 words
The moisture resistant package of claim 21 in which said composition is sodium sulfite.
Claim 25
Dependent Claim
17 words
The moisture resistant package of claim 11 in which said alkaline earth metal sulfate is magnesium sulfate.
References Cited (Backward Citations)
US3454699A
Cited
US3431206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-16 | 1982-10-16 | 1983-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-16 | 1986-10-16 | 1987-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-16 | 1990-10-16 | 1991-04-17 | $7700.00 | Window Closed / Lapsed |