# US 2019/0169410 A1 · Polymeric olefinic composition, lignin use and object

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- Number: US 2019/0169410 A1
- Document ID: US20190169410A1
- Status: Published application
- Kind: A1
- Application number: 16/324,372
- Filed: 2017-08-17
- Published: 2019-06-06
- Earliest claimed: 2016-08-19
- Assignees: Suzano Papel E Celulose S.A.
- Applicants: Suzano Papel E Celulose S.A.
- Inventors: Talyta TORREZAN; Henrique FINOCCHIO
- Web page: https://patentgrep.com/patent/US20190169410A1

## CPC

- C08L 23/12: Polypropene
- C08J 3/20: Compounding polymers with additives, e.g. colouring
- C08K 3/26: Carbonates; Bicarbonates
- C08K 3/346: {Clay}
- C08L 23/06: Polyethylene
- C08L 97/00: Compositions of lignin-containing materials (of polysaccharides C08L1/00 - C08L5/00)
- C08L 97/005: {Lignin}
- C09K 15/34: containing plant or animal materials of unknown composition
- C08K 2003/265: {Calcium, strontium or barium carbonate}
- C08L 2205/03: containing three or more polymers in a blend
- C08L 2310/00: Masterbatches
- 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)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

## Abstract

An olefinic polymer composition comprising at least one polyolefin, as well as a broadleaf tree lignin with pH below 7. The invention further relates to objects obtained from such a composition, and the use of broadleaf tree lignin with pH below 7 in the preparation of an olefinic polymer composition.

## Claims

### Claim 1

An olefinic polymer composition comprising at least one polyolefin, and a broadleaf tree lignin with pH below 7.

### Claim 2 (depends on 1)

The olefinic polymer composition according to claim 1, wherein the lignin has a nearly equitable ratio between fragments originating from trans-coniferyl and trans-sinapyl alcohols, with few fragments from trans-p-coumaryl alcohol.

### Claim 3 (depends on 1)

The olefinic polymer composition according to claim 1, wherein the lignin is eucalyptus lignin.

### Claim 4 (depends on 1)

The olefinic polymer composition according to claim 1, wherein the lignin is Kraft lignin.

### Claim 5 (depends on 1)

The olefinic polymer composition according to claim 1, wherein the purity of the lignin is greater than or equal to 85%.

### Claim 6 (depends on 1)

The olefinic polymer composition according to claim 1, wherein the lignin content is from 5% to 50% of the total weight of the composition.

### Claim 7 (depends on 1)

The olefinic polymer composition according to claim 1, wherein the lignin content is from 10 to 30% of the total weight of the composition.

### Claim 8 (depends on 1)

The olefinic polymer composition according to claim 1, wherein the at least one polyolefin is a thermoplastic polyolefin chosen from homopolymeric polyethylene and homopolymeric polypropylene.

### Claim 9 (depends on 1)

The olefinic polymer composition according to claim 1, further comprising one or more additional polymers, in addition to polyolefins, the additional polymer selected from the group consisting of polyamides, polyesters, polyalkylene glycols, polyacrylates, polymethylmetacrylates, polyanilydes, vinyl copolyols, and combinations thereof.

### Claim 10 (depends on 1)

The olefinic polymer composition according to claim 1, further comprising one or more additives selected from the group consisting of anti-oxidants, anti-UV agents, lubricants, plasticizers, stabilizers, compatibilizers, impact modifiers, pigments, dyes, antiflame agents and colorants.

### Claim 11 (depends on 1)

The olefinic polymer composition according to claim 1, further comprising fillers and/or reinforcements selected from the group consisting of talc, calcium carbonate, kaolin, mica, at least one clay, and fibers.

### Claim 12 (depends on 1)

The olefinic polymer composition according to claim 1, wherein the composition is a concentrate.

### Claim 13

(canceled)

### Claim 14 (depends on 1)

The olefinic polymer composition according to claim 1, wherein the composition is of reuse.

### Claim 15 (depends on 1)

An object obtained from an olefin thermoplastic composition according to claim 1.

### Claim 16 (depends on 12)

The olefinic polymer composition according to claim 12, wherein the concentrate is a master batch.