(19) |
 |
|
(11) |
EP 0 570 226 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
|
24.08.1994 Bulletin 1994/34 |
(43) |
Date of publication A2: |
|
18.11.1993 Bulletin 1993/46 |
(22) |
Date of filing: 13.05.1993 |
|
|
(84) |
Designated Contracting States: |
|
BE CH DE ES FR GB IT LI NL |
(30) |
Priority: |
13.05.1992 GB 9210500
|
(71) |
Applicant: THE ROBERT MCBRIDE GROUP LIMITED |
|
Middleton,
Manchester M26 4DP (GB) |
|
(72) |
Inventor: |
|
- Neil, Thomas Bruce
Merseyside L42 6QA (GB)
|
(74) |
Representative: Smart, Peter John |
|
W.H. BECK, GREENER & CO
7 Stone Buildings
Lincoln's Inn London WC2A 3SZ London WC2A 3SZ (GB) |
|
|
|
(54) |
Cleaning compositions |
(57) A homogenous thickened cleaner for hard surfaces comprises a water soluble abrasive,
a surfactant and a thickener in an aqueous base and the suspension of the abrasive
is achieved without using a high concentration of surfactant despite the high ionic
strength contributed by the abrasive through the use of an polyacrylate with anionic
side chains as the thickening agent. Typical compositions comprise 20 to 50 wt% sodium
bicarbonate or other abrasive, up to 5 wt% alkyl benzene sulphonate surfactant and
1 to 8 wt% anionic polyacrylate.