# US 8,772,358 B2 · Lecithin and plasticizer compositions and methods

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- Number: US 8,772,358 B2
- Document ID: US8772358B2
- Status: Granted
- Kind: B2
- Application number: 12/993,282
- Filed: 2009-11-12
- Published: 2011-09-15
- Granted: 2014-07-08
- Earliest claimed: 2008-11-12
- Assignees: Archer Daniels Midland Company
- Applicants: Shireen S. Baseeth; Teodora Tabuena-Salyers; Bruce R. Sebree
- Inventors: Shireen S. Baseeth; Teodora Tabuena-Salyers; Bruce R. Sebree
- Web page: https://patentgrep.com/patent/US8772358B2

## CPC

- C09K 23/017: {Mixtures of compounds}
- C09B 67/0085: {Non common dispersing agents}
- C09C 1/24: Oxides of iron
- C09C 1/48: Carbon black
- C09C 1/56: Treatment of carbon black {; Purification}
- C09D 7/45: Anti-settling agents
- C09D 11/03: characterised by features other than the chemical nature of the binder
- C01P 2006/22: Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
- C01P 2006/60: Optical properties, e.g. expressed in CIELAB-values
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09B: ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES {, e.g. PIGMENTS}; MORDANTS; LAKES (fermentation or enzyme using processes to synthesise a desired chemical compound C12P)
- C09C: TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES (treatment of materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone C04B14/00, C04B18/00, C04B20/00); PREPARATION OF CARBON BLACK {; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS}
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)
- C01P: INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

## Abstract

The present invention is directed towards compositions having lecithin and a plasticizer. Processes for producing such compositions are further disclosed. The present invention is also directed towards uses of the novel compositions as a dispersant in order to disperse compounds, such as in the fields of coatings, inks, cosmetics and the like. In one embodiment, the dispersants of the present invention are used to disperse pigments.

## Claims

### Claim 1

A composition comprising:
a crude filtered lecithin;
a plasticizer selected from the group consisting of di-(2-ethylhexyl) adipate (DEHA), dioctyl adipate (DOA), and combinations of any thereof: and
a co-surfactant selected from the group consisting of a tall fatty acid ethoxylate, an anionic aliphatic phosphate ester, and combinations of any thereof.

### Claim 2 (depends on 1)

The composition of claim 1, wherein the composition comprises less than 1 g/L of volatile organic compounds.

### Claim 3 (depends on 1)

The composition of claim 1, wherein the composition has a viscosity of 2,000 centipoise or less at 25° C.

### Claim 4 (depends on 1)

The composition of claim 1, further comprising a pigment.

### Claim 5 (depends on 4)

The composition of claim 4, wherein the pigment is selected from the group consisting of an organic pigment, an inorganic pigment, a carbon black pigment and combinations of any thereof.

### Claim 6 (depends on 1)

The composition of claim 1, further comprising a resin.

### Claim 7

A composition comprising:
a crude filtered lecithin comprises from 80% to 90% by weight of the composition;
a plasticizer selected from the group consisting of di-(2-ethylhexyl) adipate (DEHA), dioctyl adipate (DOA), and combinations of any thereof, the plasticizer comprising from 5% to 10% by weight of the composition; and
a co-surfactant comprising from 5% to 15% by weight of the composition.

### Claim 8 (depends on 7)

The composition of claim 7, wherein the composition comprises less than 1 g/L of volatile organic compounds.

### Claim 9 (depends on 7)

The composition of claim 7, wherein the composition has a viscosity of 2,000 centipoise or less at 25° C.

### Claim 10 (depends on 7)

The composition of claim 7, further comprising a pigment.

### Claim 11 (depends on 10)

The composition of claim 10, wherein the pigment is selected from the group consisting of an organic pigment, an inorganic pigment, a carbon black pigment and combinations of any thereof.

### Claim 12 (depends on 7)

The composition of claim 7, further comprising a resin.