Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1998-02-05
1999-05-11
Hertzog, Ardith
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510344, 510441, 510444, 510463, 510490, C11D17/00;3/37;3/382;3/384
Patent
active
059027827
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to the use of polyamino acid containing compounds and salts thereof in detergent compositions. More particularly, it relates to the use of a polyamino acid, including polyaspartic acid, wherein said polyamino acid is in close physical proximity with a protein so as to protect it from degradation.
BACKGROUND OF THE INVENTION
Polyamino acid agents can be used in detergent compositions as builders or dispersing agents. Such disclosure is given in EP 454126 which described polyamino acids, including polyaspartic acid, as biodegradable builders/co-builders in the formulation of detergents. The said polymers, especially those derived from aspartic acid, glutamic acid and mixtures thereof, are described as resistant to heat, stable to pH, non toxic, non irritant and entirely biodegradable. However, a problem encountered by such use is the degradability of those polymers under storage and over a period of time. PCT/US93/12090 discloses the use of polyamino acid protected from contact with a level of alkalinity as would cause degradation thereof. The said polyamino acid is provided with a coating, encapsulated or mixed in the form of an agglomerate or granulate with at least one other material which is preferably an alkaline or alkaline reacting compound. However, research by the present Applicant has revealed that this kind of protection will also degrade under storage. This being `partially` due to the enzymatic action and alkaline hydrolysis.
It has now been found that a detergent composition containing a detersive surfactant, at least one polyamino acid compound and at least one protein wherein said polyamino acid compound and said protein are in close physical proximity shows enhanced storage stability.
A further advantage to the close physical proximity of said polyamino acid compound and said protein is the enhanced stability and protection against bleaches.
It is a further object of the present invention to provide a detergent composition with effective stain and soil removal performance.
SUMMARY OF THE INVENTION
The present invention relates to a detergent composition containing a detersive surfactant, at least one polyamino acid compound and at least one protein wherein said polyamino acid compound and said protein are in close physical proximity.
For the purpose of the present invention, the term close physical proximity means one of the following: said protein are in intimate admixture; least one layer contains the protein; contains the polyamino acid compound.
It has to be understood by close physical proximity that the polyamino acid compound and the protein are not two separate discrete particles in the detergent composition.
The polyamino acid compound and the protein mixture may be present within the detergent composition in a form selected from an agglomerate, a granulate, a tablet and mixture thereof.
Also provided herein is a process for producing such mixture in a form of an agglomerate within a detergent composition.
TECHNICAL FIELD OF THE INVENTION
The present invention contemplates dispersant containing detergent compositions having an excellent storage stability against enzymes as well as against bleaches. More particularly, it relates to a detergent composition containing a detersive surfactant, at least one polyamino acid compound and at least one protein wherein said polyamino acid compound and said protein are in close physical proximity.
An essential component for the purpose of the invention is a polyamino acid compound.
The expression `polyamino acid compound` includes herein not only a polyamino acid as such but also a derivative therof, such as an amide, an ester or a salt. The polyamino acid may be a homopolymer or may be a copolymer of two or more amino acids. The amino acid may be a D-amino acid, an L-amino acids or a mixture, e.g. a racemic mixture, therof. The amino acid include, for instance, alanine, glycine, tyrosine, serine and lysine, although glutamic, carboxyglutamic and aspartic acids are preferred. Of thes
REFERENCES:
patent: 4325829 (1982-04-01), Duggleby et al.
patent: 5084270 (1992-01-01), Ciaudelli
patent: 5183601 (1993-02-01), Jisai et al.
patent: 5266237 (1993-11-01), Freeman et al.
patent: 5284512 (1994-02-01), Koskan et al.
patent: 5520842 (1996-05-01), Ponce et al.
patent: 5643863 (1997-07-01), Guerin et al.
Hall Robin Gibson
Willey Alan David
Cook C. Brant
Hertzog Ardith
Procter & Gamble Company
Rasser Jacobus C.
Zerby Kim W.
LandOfFree
Detergent compositions comprising stabilised polyamino acid comp does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Detergent compositions comprising stabilised polyamino acid comp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detergent compositions comprising stabilised polyamino acid comp will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-245600