US 10,246,618 B2Granted

PEBA for direct adhesion to TPE

AssigneeArkema France

InventorsRené-Paul Eustache, Mathieu Sabard, Yves Deyrail, Quentin Pineau, Inci Turan-Altuntas, Martin Pouzet, Atsushi Yoshitake

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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.

Claims7

Dependent claims

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).

Dependencies are inferred from the claim text.

Facts

Application: 15/192,276Filed 24 Jun 2016
Priority: FR 15 5600026 Jun 2015
Published: US 2016/0376483 A129 Dec 2016
Granted: 2 Apr 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

C09J 187/005
Adhesives based on unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated…: block or…
B32B 7/12
Interconnection of layers: using interposed adhesives or interposed materials with bonding properties
B32B 27/08
As the main or only constituent of a layer, which is next to another layer of the same or of a different material: of synthetic resin
B32B 27/285
Comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42: comprising polyethers

Family

US 2016/0376483 A1Pre-grant publication · published 29 Dec 2016
US 10,246,618 B2This patent

From the US filing history. Foreign family members aren’t listed.

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