US4915863A
Expired / Lapsed
US
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Bleaching composition
Assignee: Kao Corp
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Filing: 1988-08-08
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Granted: 1990-04-10
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Expires: 2008-08-08
Abstract
Abstract A bleaching composition comprises (a) a peroxide and (b) an organic peracid precursor having at least one group selected from (b-1) and (b-2) and then further comprises a detergent component(s). ##STR1##
Inventors
- 👤 Muneo Aoyagi
- 👤 Kazuhiro Takanashi
- 👤 Masaaki Yamamura
- 👤 Moriyasu Murata
- 👤 Hiroyuki Yamada
- 👤 Hiroyuki Araki
- 👤 Takanori Fukumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:33
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/395; C07; C07C; C07C255/00; C07C255/01; C07C255/24; C07C255/25; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3907; C11D3/3917; C11D3/3925; C11D3/3945
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
181 words
A bleaching composition comprising (a) hydrogen peroxide or a peroxide capable of releasing hydrogen peroxide in an aqueous solution, and (b) an organic peracid precursor, the mole ratio of (a)/(b) being in the range of from 99.9/0.1 to 20/80, said organic peracid precursor being at least one member selected from the group consisting of ##STR52## wherein X is an anion, R 1 is alkyl having 1 to 24 carbon atoms, and R 2 and R 3 are each alkyl having 1 to 3 carbon atoms; ##STR53## wherein X, R 2 and R 3 have the same meanings as defined above, R 21 is alkyl having 1 to 20 carbon atoms or phenyl, and n is a number of 1 to 3; ##STR54## wherein X has the same meaning as defined above; ##STR55## ##STR56## wherein X has the same meaning as defined above, R 31 , R 32 , R 33 and R 34 are each alkyl having 1 to 3 carbon atoms, and n 2 is a number of from 1 to 9; and, the reaction product of ##STR57## with chloroacetonitrile.
Claim 2
Dependent Claim
181 words
A bleaching composition comprising (a) hydrogen peroxide or a peroxide capable of releasing hydrogen peroxide in an aqueous solution, and (b) an organic peracid precursor, the mole ratio of (a)/(b) being in the range of from 99.9/0.1 to 20/80, said organic peracid precursor being at least one member selected from the group consisting of ##STR52## wherein X is an anion, R 1 is alkyl having 1 to 24 carbon atoms, and R 2 and R 3 are each alkyl having 1 to 3 carbon atoms; ##STR53## wherein X, R 2 and R 3 have the same meanings as defined above, R 21 is alkyl having 1 to 20 carbon atoms or phenyl, and n is a number of 1 to 3; ##STR54## wherein X has the same meaning as defined above; ##STR55## ##STR56## wherein X has the same meaning as defined above, R 31 , R 32 , R 33 and R 34 are each alkyl having 1 to 3 carbon atoms, and n 2 is a number of from 1 to 9; and, the reaction product of ##STR57## with chloroacetonitrile.
Claim 3
Dependent Claim
17 words
A bleaching detergent composition as claimed in claim 1, which further comprises at least one detergent component.
Claim 4
Dependent Claim
30 words
A composition as claimed in claim 1, which comprises granules of a blend of 100 parts by weight of (b) and 5 to 200 parts by weight of a binder.
Claim 5
Dependent Claim
16 words
A composition as claimed in claim 1, in which said component (b) consists essentially of ##STR58##
Claim 6
Dependent Claim
43 words
A composition as claimed in claim 1, in which said component (b) consists essentially of ##STR59## wherein R 121 is alkyl having 1 to 8 carbon atoms or phenyl, and X, R 2 and R 3 have the same meanings as defined above.
Claim 7
Dependent Claim
16 words
A composition as claimed in claim 1, in which said component (b) consists essentially of ##STR60##
Claim 8
Dependent Claim
16 words
A composition as claimed in claim 1, in which said component (b) consists essentially of ##STR61##
Claim 9
Dependent Claim
25 words
A composition as claimed in claim 7, in which in the formula R 31 , R 32 , R 33 and R 34 are methyl.
Claim 10
Dependent Claim
22 words
A composition as claimed in claim 1, in which said component (b) consists essentially of said reaction product of ##STR62## with chloroacetonitrile.
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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) | 1993-04-09 | 1993-10-09 | 1994-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-09 | 1997-10-09 | 1998-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-09 | 2001-10-09 | 2002-04-10 | $7700.00 | Window Closed / Lapsed |