A composite Elastic material with improved Elastic properties at body temperature, the process for forming the sameUnderwear / Underpants and an article containing such material.

摘要

The present Invention comprises a Laminate bonded Yarn of continuous feeding has improved measures to temperaturacorporal Elastic Properties.The laminate comprises at least a First and a Second Elastic Layer which is sandwiched between at least a capaelu00e1stica,The Elastic layer is a Copolymer (SEPS) Triple polystyrene Block Poly (ethylene / propylene) - polystyrene pesomolecular has an average of about 20 g / mol.Elporc entaje Weight of styrene is about 18%, and the percentage by weight of ethylene / propylene esaproximadamente 82%.The increase of the molecular weight on the Block EP remains Constant, while the molecular weight of styrene Block increase Dens idadde interleavingThe persistence length of Polymer chain and the relaxation time.The rate of decrease of Rolling load resultantey measurements of load loss during a period of 12 hours temperaturacorporal mo showed a marked improvement over theS productoscfsbl known. The laminate is particularly useful as a material for side panel in underwear / Underpants Learning due to Resistance to the temperaturacorporal alaflojamiento.