EP 1155112 A2 20011121 - DETERGENT TABLET
Title (en)
DETERGENT TABLET
Title (de)
WASCHMITTELTABLETTE
Title (fr)
PASTILLES DETERGENTES
Publication
Application
Priority
- GB 9815525 A 19980717
- GB 9818706 A 19980828
- US 9915491 W 19990709
Abstract (en)
[origin: WO0004117A2] A multi-phase detergent tablet for use in a washing machine, the tablet comprising: a first phase comprising alkalising agent, and a second phase comprising acidifying agent, and wherein the multi-phase tablet has an initial pH of at least 9, preferably at least 9.5 and a pH rate change index ( DELTA pH) of no more than about 0.15 units/min. Preferred are multi-phase detergent tablets wherein the alkalising agent is a silicate or mixture of silicates, especially a sodium silicate of the crystalline layered variety; while the acidifying agent is part of a (bi)carbonate/acid effervescent couple which acts as disrupting agent for the tablet. The multi-phase detergent tablets have improved pH control, cleaning and enzyme performance together with excellent product strength, integrity and dissolution characteristics.
IPC 1-7
IPC 8 full level
C11D 17/06 (2006.01); C11D 3/00 (2006.01); C11D 3/06 (2006.01); C11D 3/08 (2006.01); C11D 3/10 (2006.01); C11D 3/12 (2006.01); C11D 3/22 (2006.01); C11D 3/37 (2006.01); C11D 17/00 (2006.01)
CPC (source: EP)
C11D 3/0052 (2013.01); C11D 3/1273 (2013.01); C11D 3/222 (2013.01); C11D 17/0078 (2013.01); C11D 17/0086 (2013.01)
Citation (search report)
See references of WO 0004117A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0004117 A2 20000127; WO 0004117 A3 20010920; AU 5093599 A 20000207; BR 9912838 A 20010502; CA 2337408 A1 20000127; CA 2337408 C 20051115; EP 1155112 A2 20011121; HK 1043148 A1 20020906; JP 2002520476 A 20020709; TR 200100092 T2 20011022
DOCDB simple family (application)
US 9915491 W 19990709; AU 5093599 A 19990709; BR 9912838 A 19990709; CA 2337408 A 19990709; EP 99935461 A 19990709; HK 02102794 A 20020412; JP 2000560216 A 19990709; TR 200100092 T 19990709