EP0139330A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Rinse aid
Assignee: Unilever PLC
•
Filing: 1984-10-10
•
Granted: —
•
Expires: 2004-10-10
Abstract
Abstract The use of a layered clay, e.g. a synthetic hectorite, is a rinse aid composition for use after a dishwashing operation significantly reduces the formation of spots and film on the rinsed articles when dry.
Inventors
- 👤 Machiel Goedhart
- 👤 Franciscus Hermannus Gortemaker
- 👤 Hermanus Christoffel Kemper
- 👤 Hendrik Simon Kielman
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 01:43
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/12; C11D3/124; C11D3/1246; C11D3/1253; C11D3/126
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
25 words
A rinse aid composition, suitable for use in an aqueous rinse liquor, characterised in that the composition comprises a layered clay in an aqueous medium.
Claim 2
Dependent Claim
25 words
A rinse aid composition, suitable for use in an aqueous rinse liquor, characterised in that the composition comprises a layered clay in an aqueous medium.
Claim 3
Dependent Claim
31 words
A composition according to claim 1, characterised in that the composition comprises an amount of the layered clay such that the rinse liquor contains 0.001-1 g of the clay per litre.
Claim 4
Dependent Claim
29 words
A composition according to claim 2, characterised in that the layered clay is selected from the group consisting of the smectites, kaolins, illites, chlorites, attapulgites and mixed layer clays.
Claim 5
Dependent Claim
23 words
A composition according to claim 3, characterised in that the layered clay is slected from the group consisting of hectorites, montmorillonites and bentonites.
Claim 6
Dependent Claim
16 words
A composition according to claim 4, characterised in that the layered clay is a synthetic hectorite.
Claim 7
Dependent Claim
22 words
A composition according to claims 1-5, characterised in that it is a liquid composition further comprising a wetting agent and a solvent.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.