Patent EP0303520A2 successfully refreshed from Google Patents.
EP0303520A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Bleaching composition
Assignee: Kao Corp
•
Filing: 1988-08-15
•
Granted: —
•
Expires: 2008-08-15
Abstract
Abstract A bleaching composition comprises (a) a peroxide and (b) an orgnanic peracid precursor having at least one group selected from (b-1) and (b-2) and further comprises at least one detergent component.
Inventors
- 👤 Muneo Aoyagi
- 👤 Kazuhiro Takanashi
- 👤 Masaaki Yamamura
- 👤 Moriyasu Murata
- 👤 Hiroyuki Yamada
- 👤 Hiroyuki Araki
- 👤 Takanori Fukumoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 21:44
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: 13
Claim 1
Independent Claim
24 words
A bleaching composition which comprises (a) a peroxide and (b) an organic peracid precursor having at least one of the following groups and (b-2).
Claim 2
Dependent Claim
24 words
A bleaching composition which comprises (a) a peroxide and (b) an organic peracid precursor having at least one of the following groups and (b-2).
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
96 words
A composition as claimed in Claim 1, in which said precursor has the following generic formula (b-3) in which R1 is a C1 to C24 alkyl, a C1 to C24 alkenyl, an alkaryl having a C1 to C24 alkyl, a substituted C1 to C24 alkyl, a substituted C1 to C24 alkenyl, an alkaryl having a C1 to C24 alkyland at least one other substituent, R2 and R3 are each independently a C1 to C3 alkyl, hydroxyalkyl having 1 to 3 carbon atoms, - (C2H40)n H, n being 1 to 6, -CH2-CN and X is an anion.
Claim 5
Dependent Claim
73 words
A compsosition as claimed in Claim 1, in which said precursor has the following generic formula (b-4) in which R1 is a C1 to C20 alkyl, a C1 to C20 alkenyl, an aryl, a substituted C1 to C20 alkyl, a substituted C1 to C20 alkenyl, a substituted aryl, R2 and R3 are each a C1 to C3 alkyl, a hydroxyalkyl having 1 to 3 carbon atoms or -(C2H40)nH, n being 1 to 3.
Claim 6
Dependent Claim
62 words
A composition as claimed in Claim 1, in which said precursor has either of the following generic formulae (b-5) or (b-6) in which each of R1 to R5 is independently hydrogen, a C1 to C10 alkyl, a C1 to C10 alkenyl, a substituted C1 to C10 alkyl, a substituted C1 to C10 alkenyl, carboxyl, sulfonyl or cyano, and X is an anion.
Claim 7
Dependent Claim
20 words
A composition as claimed in Claim 1, in which said precursor is an alkylene diamine compound or a polyalkylenepolyamine compound.
Claim 8
Dependent Claim
45 words
A compositioon as claimed in Claim 1, in which said precursor has the following generic formula (b-7) in which R1, R2, R3 and R4 are each independently a C1 to C6 alkyl, n is an integer from 1 to 16 and X is an anion.
Claim 9
Dependent Claim
20 words
A composition as claimed in Claim 1, which the mole ratio of (a) to (b) ranges from 99.9/0.1 to 20/80.
Claim 10
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 20 parts by weight of a binder.
Claim 11
Dependent Claim
12 words
A cationic compound having the generic formula (b-7) defined in Claim 7.
Claim 12
Dependent Claim
36 words
A compound as claimed in Claim 10, in which in the formula R1, R2, R3 and R4 are independently alkyl groups having 1 to 3 carbon atoms and n is an integer from 1 to 9.
Claim 13
Dependent Claim
19 words
A compound as claimed in Claim 11, in which in the formula R1, R2, R3 and R4 are methyl.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.