Puncture-resistant air-impermeable laminate for an inflatable article

摘要

Airtight and puncture-resistant multilayer elastomer laminate that can be used in particular in an inflatable article, such as a pneumatic tire for a vehicle, comprising at least the following three layers (phr signifying parts by weight per hundred parts of rubber (elastomer) in each composition considered): as an airtight first layer, a first elastomer composition comprising at least 50 phr of a diene elastomer; as a puncture-resistant second layer, a self-sealing second elastomer composition comprising at least 50 phr of a saturated thermoplastic styrene elastomer and more than 200 phr of an extender oil; as an adhesive third layer or interphase between the above two layers, a third composition comprising at least 30 phr of an unsaturated thermoplastic styrene elastomer.

主权项

1. An airtight and puncture-resistant multilayer elastomer laminate that can be used in particular in an inflatable article, comprising at least the following three layers (phr signifying parts by weight per hundred parts of rubber (elastomer) in each composition considered):
as an airtight first layer, a first elastomer composition comprising at least 50 phr of a diene elastomer; as a puncture-resistant second layer, a self-sealing second elastomer composition comprising at least 50 phr of a saturated thermoplastic styrene (abbreviated to TPS) elastomer and more than 200 phr of an extender oil; and as an adhesive interphase or third layer, positioned between the above two layers, a third composition comprising at least 30 phr of an unsaturated TPS elastomer.