Aqueous composition comprising oligomeric esterquats

Cleaning compositions for solid surfaces – auxiliary compositions – Auxiliary compositions for cleaning – or processes of preparing – Textile softening or antistatic composition

Reexamination Certificate

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Details

C510S504000, C510S329000, C510S330000, C510S473000

Reexamination Certificate

active

06992058

ABSTRACT:
The application relates to a medium viscosity, clear fabric softening composition, comprising(a) from about 1 to 20 wt. % of an oligomeric esterquat, derived from the reaction of an alkanol amine with (i) a polycarboxylic acid; and (ii) a fatty alcohol or a fatty acid; or (iii) a mixture of a fatty alcohol and a fatty acid, followed by partial quaternization (leading to a mixture of oligomeric esteramine and of esterquat);(b) at least about 0.2 wt. % dipropylene glycol, said fabric softening composition being free of isopropanol, ethylene glycol, propylene glycol and polyglycols;(c) an effective amount of a water insoluble perfume; and(d) an effective amount of a thickening agent to provide a viscosity of from 80 to 700 mPa.s in the softening composition, said thickening agent being selected from the group consisting of (i) non-ionic water-soluble cellulosic polymer derived from the condensation of cellulose and ethylene oxide and/or propylene oxide; (ii) ethoxylated and/or propoxylated fatty alcohol polyurethane associative thickener; and (iii) cationic polyacrylate copolymer.

REFERENCES:
patent: 6300307 (2001-10-01), Bermejo et al.
patent: 6432895 (2002-08-01), Bigorra et al.
patent: 6465419 (2002-10-01), Bermejo Oses et al.
patent: 197 43 687 (1998-11-01), None
patent: 1 136 471 (2003-07-01), None
patent: WO 01/47489 (2001-07-01), None

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