# US 2019/0169401 A1 · Colored composite material with cellulose fibers

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- Number: US 2019/0169401 A1
- Document ID: US20190169401A1
- Status: Published application
- Kind: A1
- Application number: 15/833,439
- Filed: 2017-12-06
- Published: 2019-06-06
- Earliest claimed: 2017-12-06
- Assignees: Ford Global Technologies, LLC
- Applicants: Ford Global Technologies, LLC
- Inventors: Richard Gall; Paul Kenneth Dellock; Stuart Salter; Talat Karmo; LaRon Michelle Brown
- Web page: https://patentgrep.com/patent/US20190169401A1

## CPC

- C08L 1/02: Cellulose; Modified cellulose
- C08J 3/22: using masterbatch techniques
- C08J 5/045: {with vegetable or animal fibrous material}
- C08J 5/10: characterised by the additives used in the polymer mixture
- C08K 3/34: Silicon-containing compounds
- C08L 91/00: Compositions of oils, fats or waxes; Compositions of derivatives thereof
- C08L 101/00: Compositions of unspecified macromolecular compounds
- B29B 7/42: with screw or helix
- B29K 2001/00: Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
- B29K 2023/12: {PP, i.e. polypropylene}
- B29K 2105/0005: {containing compounding ingredients (releasing, lubricating or separating agents B29C33/56, fibers B29K2105/08, B29K2105/12; fillers B29K2105/16, recycled material B29K2105/26)}
- B29K 2105/0032: {Pigments, colouring agents or opacifiyng agents}
- C08J 2301/02: Cellulose; Modified cellulose
- C08J 2323/02: not modified by chemical after treatment
- C08J 2423/12: Polypropene
- C08K 3/04: Carbon
- C08K 3/346: {Clay}
- C08K 5/09: Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K 5/14: Peroxides
- C08L 23/02: not modified by chemical after-treatment
- C08L 2205/16: Fibres; Fibrils
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C08J: WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H (working, e.g. shaping, of plastics B29)
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- B29B: PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS

## Abstract

A material includes a base polymer, cellulose fibers dispersed through the base polymer, a pigment coloring the base polymer and the cellulose fibers, and a sealant selected from epoxidized soybean oil and polyolefin. The sealant coats and seals the cellulose fibers.

## Claims

### Claim 1

A material comprising:
a base polymer;
cellulose fibers dispersed through the base polymer;
a pigment coloring the base polymer and the cellulose fibers; and
a sealant selected from the group consisting of epoxidized soybean oil and polyolefin, the sealant coating and sealing the cellulose fibers.

### Claim 2 (depends on 1)

The material as recited in claim 1, wherein the base polymer is polyolefin.

### Claim 3 (depends on 1)

The material as recited in claim 1, wherein the sealant is at least 5% by weight.

### Claim 4 (depends on 3)

The material as recited in claim 3, wherein the base polymer is at least 25% by weight and the pigment is at least 5% by weight.

### Claim 5 (depends on 4)

The material as recited in claim 4, wherein the cellulose fibers are at least 40% by weight.

### Claim 6 (depends on 1)

The material as recited in claim 1, further comprising reinforcement particles dispersed in the base polymer.

### Claim 7 (depends on 6)

The material as recited in claim 6, wherein the cellulose fibers are at least 10% by weight.

### Claim 8 (depends on 1)

The material as recited in claim 1, further comprising a compatibilizer selected from the group consisting of dicumyl peroxide, maleic anhydride, and combinations thereof.

### Claim 9

A material comprising:
at least 25% by weight of a polyolefin base polymer;
at least 40% by weight of cellulose fibers dispersed through the polyolefin base polymer;
at least 5% of a pigment, the pigment coloring the base polymer and the cellulose fibers; and
a sealant selected from the group consisting of at least 1% of epoxidized soybean oil, at least 0.4% of polyolefin, and combinations thereof.

### Claim 10 (depends on 9)

The material as recited in claim 9, wherein the sealant is at least 5% by weight of the epoxidized soybean oil or at least 2% by weight of the polyolefin.

### Claim 11 (depends on 10)

The material as recited in claim 10, wherein the cellulose fibers are at least 45% by weight and the polyolefin base polymer is at least 35% by weight.

### Claim 12 (depends on 11)

The material as recited in claim 11, wherein the pigment is at least 7% by weight.

### Claim 13 (depends on 9)

The material as recited in claim 9, further comprising a compatibilizer selected from the group consisting of dicumyl peroxide, maleic anhydride, and combinations thereof.

### Claim 14

A method of fabricating a material, comprising:
loading at least a base polymer, cellulose fibers, and a pigment into a mixer that includes a worm gear, the worm gear rotating to pre-mix the base polymer, the cellulose fibers, and the pigment, wherein the loading is at a first axial position of the worm gear;
loading a sealant into the mixer at a second axial position of the worm gear that is downstream of the first axial position, the worm gear mixing the epoxidized soybean oil with the pre-mixture of the base polymer, the cellulose fibers, and the pigment to form a final mixture, wherein the sealant is selected from the group consisting of epoxidized soybean oil and polyolefin; and
the worm gear extruding the final mixture through a die.

### Claim 15 (depends on 14)

The method as recited in claim 14, wherein the final mixture has a composition:
at least 25% by weight of a polyolefin base polymer,
at least 40% by weight of cellulose fibers dispersed through the polyolefin base polymer,
at least 5% of a pigment, the pigment coloring the base polymer and the cellulose fibers, and
a sealant selected from the group consisting of at least 1% of epoxidized soybean oil, at least 0.4% of polyolefin, and combinations thereof.

### Claim 16 (depends on 15)

The method as recited in claim 15, wherein the sealant is at least 5% by weight of the epoxidized soybean oil or at least 2% by weight of the polyolefin.

### Claim 17 (depends on 16)

The method as recited in claim 16, wherein the cellulose fibers are at least 45% by weight and the polyolefin base polymer is at least 35% by weight.

### Claim 18 (depends on 17)

The method as recited in claim 17, wherein the pigment is at least 7% by weight.

### Claim 19 (depends on 9)

The method as recited in claim 9, further comprising loading a compatibilizer into the mixer at the first axial position with the base polymer, the cellulose fibers, and the pigment, the compatibilizer selected from the group consisting of dicumyl peroxide, maleic anhydride, and combinations thereof.
