# US 11,441,025 B2 · Release components to increase anti-adhesion properties of thermoplastic packaging material

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- Number: US 11,441,025 B2
- Document ID: US11441025B2
- Status: Granted
- Kind: B2
- Application number: 16/303,405
- Filed: 2017-05-22
- Published: 2020-10-08
- Granted: 2022-09-13
- Earliest claimed: 2016-05-24
- Assignees: Clariant International Ltd.
- Applicants: Clariant International Ltd
- Inventors: Natascha Schelero; Thierry Muller; Angelica Marson; Alessandra Stella Sacchi
- Web page: https://patentgrep.com/patent/US11441025B2

## CPC

- C08L 25/06: Polystyrene
- C08K 3/22: of metals
- C08K 3/26: Carbonates; Bicarbonates
- C08K 5/053: Polyhydroxylic alcohols
- C08K 5/103: with polyalcohols
- C08L 23/06: Polyethylene
- C08K 2003/2224: {Magnesium hydroxide}
- C08K 2003/2227: {of aluminium}
- C08K 2003/267: {Magnesium carbonate}
- C08K 2201/014: Additives containing two or more different additives of the same subgroup in C08K
- C08L 2203/16: used for films
- C08L 2207/062: HDPE
- C08L 2207/066: LDPE (radical process)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)

## Abstract

The invention relates to a composition Z comprising a component A, component B and/or C, and component D, wherein the component A is a thermoplastic material selected from the group consisting of polyolefins, polyolefin copolymers and polystyrenes; the component B is an organic additive selected from the group consisting of glycerol, a polyglycerol, a glycerol ester, a polyglycerol ester and a combination thereof; the component C is an organic additive selected from the group consisting of sorbitol, a sorbitol ester, sorbitan, a sorbitan ester, and a combination thereof; the component D is an inorganic additive selected from the group of layered double hydroxides.

## Claims

### Claim 1

A formed plastic container having an inner surface layer comprising a composition Z;
wherein composition Z includes a component A, a component D and at least one of component B or component C, or both components B and C, wherein:
the component A is a thermoplastic material selected from the group consisting of a polyolefin, polyolefin copolymer and polystyrene;
the component B is an organic additive selected from the group consisting of glycerol, a polyglycerol, a glycerol ester, a polyglycerol ester and a combination thereof;
the component C is an organic additive selected from the group consisting of sorbitol, a sorbitol C8-C18 alkyl ester, sorbitan, a sorbitan C8-C18 alkyl ester, and a combination thereof;
the component D is an inorganic additive selected from the group of layered double hydroxides in an amount from 0.1 to 15%, based on a total weight of composition Z;
wherein said container is a multilayer container, provided that when component A is a polystyrene composition Z includes component A, component D and both components B and C.

### Claim 2 (depends on 1)

The formed plastic container as claimed in claim 1, wherein component B is present in an amount of from 0.05 to 20%, based on a total weight of composition Z.

### Claim 3 (depends on 1)

The formed plastic container as claimed in claim 1, wherein component C is present in an amount of from 0.05 to 20%, by weight, based on a total weight of composition Z.

### Claim 4 (depends on 1)

The formed plastic container as claimed in claim 1, wherein component D is present in an amount of from 1 to 5%, based on a total weight of composition Z.

### Claim 5 (depends on 1)

The formed plastic container as claimed in claim 1, wherein component D is a hydrotalcite.

### Claim 6 (depends on 1)

The formed plastic container as claimed in claim 1, wherein composition Z further comprises one or more further additives as component E.

### Claim 7 (depends on 6)

The formed plastic container as claimed in claim 6, wherein component E is a colorant.

### Claim 8 (depends on 1)

The formed plastic container as claimed in claim 1, wherein the composition Z contains from 14 to 99.98% by weight of component A;
from 0.01 to 70% by weight of component C; wherein component C is sorbitan, or a sorbitan ester;
from 1 to 15% by weight of component D;
from 0 to 80% by weight component E;
with the % by weight being based in each case on a total weight of the composition Z;
and with the % by weight of the components A, C, D and optionally E always adding up to 100%.

### Claim 9 (depends on 1)

The formed plastic container as claimed in claim 1, wherein the container contains a food or beverage product.

### Claim 10 (depends on 1)

The formed plastic container as claimed in claim 1, wherein the container contains personal care, cosmetics, pharmaceutical, household, or industrial products.

### Claim 11 (depends on 1)

A method for preparing composition Z as claimed in claim 1, comprising the step of physically mixing component A, component D and at least one of component B or component C, or both components B and C.

### Claim 12 (depends on 11)

A method for preparing composition Z as claimed in claim 11, comprising the step of physically mixing components A, C, and D.

### Claim 13

A formed plastic container having an inner surface layer comprising a composition Z;
wherein composition Z includes a component A, a component D and a component C, wherein:
the component A is a thermoplastic material selected from the group consisting of a polyolefin, polyolefin copolymer and polystyrene;
the component C is an organic additive selected from the group consisting of sorbitol, a sorbitol C8-C18 alkyl ester, sorbitan, a sorbitan C8-C18 alkyl ester, and a combination thereof; and
the component D is an inorganic additive selected from the group of layered double hydroxides in an amount from 0.1 to 15%, based on a total weight of composition Z.

### Claim 14 (depends on 13)

The formed plastic container as claimed in claim 13, wherein component C is sorbitan, or a sorbitan ester.

### Claim 15 (depends on 13)

The formed plastic container as claimed in claim 13, wherein component C is present in an amount from 0.05 to 20%, by weight, based on a total weight of composition Z.

### Claim 16 (depends on 14)

The formed plastic container as claimed in claim 14, wherein component C is present in an amount from 0.1 to 5%, by weight, based on a total weight of composition Z.

### Claim 17 (depends on 13)

The formed plastic container as claimed in claim 13, wherein component D is a hydrotalcite.

### Claim 18 (depends on 13)

The formed plastic container as claimed in claim 13, wherein component D is present in an amount from 1 to 5%, based on a total weight of composition Z.

### Claim 19 (depends on 13)

The formed plastic container as claimed in claim 13, wherein the composition Z contains:
from 88% to 99.98% by weight of component A;
from 0.01 to 5% by weight of component C;
from 0.01 to 10% by weight of component D;
from 0 to 10% by weight of an optional component E;
with the % by weight being based in each case on a total weight of the composition Z;
and with the % by weight of the components A, C, D and optionally E always adding up to 100%.

### Claim 20 (depends on 13)

The formed plastic container as claimed in claim 13, wherein said container is a multilayer container.
