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EP0507478A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Fabric softening composition

Assignee: Unilever PLC
•
Filing: 1992-03-20
•
Granted: —
•
Expires: 2012-03-20
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Abstract

Abstract A fabric softening composition comprising a water insoluble cationic fabric softening agent and a nonionic stabilising agent wherein the water insoluble cationic fabric softening agent is a biodegradable quaternary ammonium material with at least one ester link and the nonionic stabilising agent is selected from: i. a linear C 8 to C₂₂ alcohol alkoxylated with 10 to 20 moles of alkylene oxide, or ii. a C₁₀ to C₂₀ alcohol or mixtures thereof. The invention also provides a process for making the liquid fabric softening composition comprising the steps of i. mixing and heating the cationic fabric softening agent and nonionic stabilising agent to form a melt and ii. dispersing the melt in water.

Inventors

  • 👤 Simon Richard Unilever Research Ellis
  • 👤 Graham Andrew Unilever Research Turner

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-04 10:20
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/835; C11D3/00; C11D3/0005; C11D3/001; C11D3/0015; C11D1/38; C11D1/62; C11D1/72

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 72 words
A fabric softening composition comprising a water insoluble cationic fabric softening agent and a nonionic stabilising agent characterised in that the water insoluble cationic fabric softening agent is a biodegradable quaternary ammonium material with at least one ester link and the nonionic stabilising agent is i. a linear C 8 to C₂₂ alcohol alkoxylated with 10 to 20 moles of alkylene oxide, or ii. a C₁₀ to C₂₀ alcohol or mixtures thereof.
Claim 2
Dependent Claim 29 words
A composition as claimed in claim 1 wherein the nonionic stabilising agent is a linear C 8 to C₂₂ alcohol alkoxylated with 10 to 20 moles of alkylene oxide.
Claim 3
Dependent Claim 26 words
A composition as claimed in claim 1 or claim 2 characterised in that the composition comprises at least 1% by weight of the quaternary ammonium material.
Claim 4
Dependent Claim 25 words
A composition as claimed in any preceding claim characterised in that the composition comprises from 0.1 to 10% by weight of the nonionic stabilising agent.
Claim 5
Dependent Claim 25 words
A composition as claimed in any preceding claim characterised in that the composition also comprises more than 0.1% by weight of a fatty acid material.
Claim 6
Dependent Claim 47 words
A composition as claimed in any preceding claim characterised in that the composition comprises from 3% to 50% by weight of the quaternary ammonium material, from 0.5% to 5% by weight of the nonionic stabilising agent and from 0.5 to 20% by weight of fatty acid material.
Claim 7
Dependent Claim 23 words
A composition as claimed in any preceding claim characterised in that the nonionic stabilising agent has an HLB of between 10 and 20.
Claim 8
Dependent Claim 20 words
A composition as claimed in claim 7 wherein the nonionic stabilising agent has an HLB of between 12 and 20.
Claim 9
Dependent Claim 36 words
A fabric softening composition as claimed in any preceding claim wherein the water insoluble cationic comprises a compound having two C₁₂₋₂₈ alkyl or alkenyl groups connected to the N atom via one or more ester links.
Claim 10
Dependent Claim 45 words
Process for making a liquid fabric softening composition as claimed in any of claims 1 to 9 comprising the steps of i. mixing and heating the cationic fabric softening agent and nonionic stabilising agent to form a melt and ii. dispersing the melt in water.

References Cited (Backward Citations)

FR2257728A1 Cited
EP0293953A2 Cited
US4789491A Cited
EP0309052A2 Cited
EP0331237A2 Cited
EP0346634A1 Cited

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