| (19) |
 |
|
(11) |
EP 0 875 556 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
24.01.2001 Bulletin 2001/04 |
| (43) |
Date of publication A2: |
|
04.11.1998 Bulletin 1998/45 |
| (22) |
Date of filing: 09.03.1998 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
Designated Extension States: |
|
AL LT LV MK RO SI |
| (30) |
Priority: |
29.04.1997 US 841110
29.04.1997 US 841198
|
| (71) |
Applicant: ECOLAB INC. |
|
St. Paul Minnesota 55102 (US) |
|
| (72) |
Inventors: |
|
- Lentsch, Steven E.
St. Paul, Minnesota 55116 (US)
- Sopha, Matthew J.
St. Paul, Minnesota 55117 (US)
- Man, Victor F.
St. Paul, Minnesota 55108 (US)
|
| (74) |
Representative: Bond, Bentley George et al |
|
Haseltine Lake & Co., Imperial House, 15-19 Kingsway
London WC2B 6UD
London WC2B 6UD (GB) |
|
| |
|
| (54) |
Rinse aid for plasticware |
(57) A rinse aid composition for use on plasticware is herein described which requires
lower concentration of conventional hydrocarbon surfactants, exhibits adequate sheeting
on the plasticware and acceptable drying time which prior rinse aids have failed to
provide without special handling. The compositions described contain hydrocarbon surfactants
and a polyether or polybetaine polysiloxane copolymer surfactant alone or in combination
with a fluorinated hydrocarbon surfactant. The composition may be formulated as a
solid or liquid suitable for dilution to form an aqueous rinse used to contact the
plasticware in a warewashing machine.