# US 10,246,618 B2 · PEBA for direct adhesion to TPE

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- Number: US 10,246,618 B2
- Document ID: US10246618B2
- Status: Granted
- Kind: B2
- Application number: 15/192,276
- Filed: 2016-06-24
- Published: 2016-12-29
- Granted: 2019-04-02
- Earliest claimed: 2015-06-26
- Assignees: Arkema France
- Applicants: Arkema France
- Inventors: René-Paul Eustache; Mathieu Sabard; Yves Deyrail; Quentin Pineau; Inci Turan-Altuntas; Martin Pouzet; Atsushi Yoshitake
- Web page: https://patentgrep.com/patent/US10246618B2

## CPC

- C09J 187/005: {Block or graft polymers not provided for in groups C09J101/00 - C09J185/04}
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 27/08: of synthetic resin
- B32B 27/285: {comprising polyethers}
- B32B 27/34: comprising polyamides
- B32B 37/06: characterised by the heating method
- C08G 69/40: Polyamides containing oxygen in the form of ether groups (C08G69/12, C08G69/32 take precedence)
- C08G 81/00: Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers (involving only carbon-to-carbon unsaturated bond reactions C08F299/00 {; polyester-amides C08G69/44; polyester-imides C08G73/16; polyamides-imides C08G73/14; block- or graft polymers containing polysiloxane sequences C08G77/42})
- C08L 77/06: Polyamides derived from polyamines and polycarboxylic acids (C08L77/10 takes precedence)
- C09J 5/06: involving heating of the applied adhesive
- B32B 2371/00: Polyethers, e.g. PEEK, i.e. polyether-etherketone; PEK, i.e. polyetherketone
- B32B 2377/00: Polyamides
- B32B 2437/02: Gloves, shoes
- C08G 2170/20: Compositions for hot melt adhesives
- C08G 2170/90: Compositions for adhesives used in footwear
- C09J 2475/006: in the substrate
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

The invention relates to a copolymer having polyamide PA blocks and polyether PE blocks, in which PA is of diamine.diacid X.Y type; X, the number of carbons of the diamine, is within the range from 6 to 14, and Y, the number of carbons of the diacid, is within the range from 6 to 18. The invention also relates to the use of the said copolymer in a process of direct adhesion between two TPE materials for increasing the peel strength between these materials.

## Claims

### Claim 1

A composite article comprising at least two polymer materials which adhere directly to one another, wherein:
a first polymer material is made of a copolymer having polyamide PA blocks and polyether PE blocks (PEBA), in which the number of carbons of the diamine in the PA blocks is within the range from 6 to 14, and the number of carbons of the diacid in the PA blocks is within the range from 6 to 18, and
a second polymer material is made of thermoplastic elastomer (TPE) chosen from identical PEBA with a flexural modulus different from that of the copolymer, PEBA of composition different from that of the said copolymer, copolyether-block-ester (COPE) and/or copolyether-block-urethane (TPU).

### Claim 2 (depends on 1)

The composite article according to claim 1, in which the number of carbons of the diamine in the PA blocks is 6 or 10, and the number of carbons of the diacid in the PA blocks is 10 or 12.

### Claim 3 (depends on 1)

The composite article according to claim 1, in which PE is chosen from polytetramethylene glycol (PTMG), polypropylene glycol (PPG), polytrimethylene glycol (PO3G) and/or polyethylene glycol (PEG).

### Claim 4 (depends on 1)

The composite article according to claim 1, in which the said copolymer comprises from 51 to 90% by weight of polyamide blocks and respectively from 49 to 10% by weight of polyether blocks, with respect to the total weight of copolymer.

### Claim 5 (depends on 1)

The composite article according to claim 1, in which the number-average molecular weight (Mn) of the PA blocks is within the range from 500 to 10,000.

### Claim 6 (depends on 1)

The composite article according to claim 1, in which the number-average molecular weight (Mn) of the PE blocks is within the range from 400 to 1000.

### Claim 7 (depends on 1)

The composite article according to claim 1, wherein the composite article is configured for use in the manufacture of sports equipment, as a component of footwear, as a medical device, as a transmission belt, as an antistatic additive, as waterproof-breathable film, as support for active molecules, as colouring agent, as welding agent, as decorative element and/or as additive for polyamide.