EP0098129A1
Expired / Lapsed
EP
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Detergent additive product
Assignee: Procter and Gamble Co
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Filing: 1983-06-27
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Granted: —
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Expires: 2003-06-27
Abstract
Abstract A detergent additive product comprising a C5-C18 aliphatic peroxy carboxylic acid bleach precursor in water releasable combination with a non particulate flexible substrate in a weight ratio of precursor to substrate of 30:1 to 1:10. The aliphatic portion of the precursor incorporates a linear chain including and extending from the carbonyl carbon of from 6 to 10 carbon atoms. The product can also include peracetic acid precursors and other compatible organic and inorganic detergent components.
Inventors
- 👤 Frederick Edward Hardy
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 05:25
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/395; C11D3/39; C11D3/3902; C11D3/3905; C11D3/3907; C11D17/00; C11D17/04; C11D17/041; C11D17/046; C11D3/3935; C11D7/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
103 words
A detergent additive product comprising a) a composition comprising a peroxyacid bleach precursor having the general formula wherein R is a C 5 -C 18 alkyl group wherein the longest portion of the linear alkyl chain extending from and including the carbonyl carbon contains from 6 to 10 carbon atoms, and L is a leaving group the conjugate acid of which has a pKa in the range from 6 to 13, said peroxy bleach precursor being in water-releasable combination with b) a non particulate flexible substrate, the weight ratio of the precursor to the substrate being in the range from 30:1 to 1:10.
Claim 2
Dependent Claim
103 words
A detergent additive product comprising a) a composition comprising a peroxyacid bleach precursor having the general formula wherein R is a C 5 -C 18 alkyl group wherein the longest portion of the linear alkyl chain extending from and including the carbonyl carbon contains from 6 to 10 carbon atoms, and L is a leaving group the conjugate acid of which has a pKa in the range from 6 to 13, said peroxy bleach precursor being in water-releasable combination with b) a non particulate flexible substrate, the weight ratio of the precursor to the substrate being in the range from 30:1 to 1:10.
Claim 3
Dependent Claim
9 words
A detergent additive product according to Claim 1 wherein.
Claim 4
Dependent Claim
24 words
A detergent additive product according to either one of. Claims 1 and 2 wherein R is a C 5 -C 9 linear alkyl group.
Claim 5
Dependent Claim
34 words
A detergent additive product according to any one of Claims 1-3 wherein the conjugate acid of leaving group L has a pKa in the range from 7 to 11, preferably from 8 to 10.
Claim 6
Dependent Claim
104 words
A detergent additive product according to any one of Claims 1-4 wherein the leaving group L is selected from wherein R 2 is an alkyl group containing from 1 to 4 carbon atoms; R 3 is H or R 2 ; Z is H, R 2 or halide; Y is selected from - SO 3 M - OSO 3 M - CO 2 M - N + (R 2 ) 3 Q - - N(R 2 ) 2 →O wherein M is H, alkali metal or ammonium; and Q is halide or methosulphate; and x is 0 or an integer from 1 to 4.
Claim 7
Dependent Claim
34 words
A detergent additive product according to Claim 5 wherein L has the formula a) in which Z is H, x is 0 and Y is - SO 3 M or - CO 2 M.
Claim 8
Dependent Claim
21 words
A detergent additive product according to any one of Claims 1-6 wherein R comprises a C 7 -C 8 alkyl group.
Claim 9
Dependent Claim
67 words
A detergent additive product according to any one of the preceding Claims wherein the composition also contains a peroxyacetic acid bleach precursor, the ratio of the bleach precursor containing the linear C 6 -C 10 carbon chain to the peroxyacetic acid precursor being such as to provide a C 6 -C 10 linear carbon chain-containing peroxy acid:peracetic acid molar ratio in the'range of from 1:1 to 1:10.
Claim 10
Dependent Claim
25 words
A detergent additive product according to Claim 8 wherein the peroxyacetic acid bleach precursor is selected from tetra acetyl ethylene diamine and penta acetyl glucose.
Claim 11
Dependent Claim
43 words
A detergent additive product according to any one of the preceding Claims wherein the linear C 6 -C 10 carbon chain-containing bleach precursor and any other bleach precursor present therewith has a particle size less than 180 microns, preferably less than 100 microns.
Claim 12
Dependent Claim
101 words
A detergent additive product according to any one of the preceding claims wherein the composition also comprises a processing aid in the form of a waxy solid having a melting point in the range 30-70°C and selected from C 12 -C 20 fatty acids, C 14 -C 18 primary and secondary alcohols and ethylene oxide condensates of said fatty acids and alcohols containing from 15 to 80 moles of ethylene oxide per mole of alcohol or acid, polyethylene glycols of MWt 4,000-10,000, sorbitan mono, di and triesters of C 12 -C 20 fatty acids and mixtures of any of the foregoing.
Claim 13
Dependent Claim
19 words
A detergent additive product according to any one of the preceding claims wherein the composition is substantially . anhydrous.
Claim 14
Dependent Claim
35 words
A detergent additive product according to any one of the preceding claims also incorporating a source of hydrogen peroxide, the weight ratio of hydrogen peroxide source to substrate being in the range 10:1 to 1:3.
Claim 15
Dependent Claim
25 words
A detergent additive product according to Claim 10 wherein the source of hydrogen peroxide is spatially separated from the composition comprising the peroxyacid bleach precursor.
Claim 16
Dependent Claim
31 words
A detergent additive product according to Claim 14 wherein the source of hydrogen peroxide is selected from sodium perborate tetrahydrate, sodium perborate monohydrate, sodium percarbonate and urea hydrogen peroxide addition compounds.
References Cited (Backward Citations)
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