Method for manufacturing and handling elastomer thermoplastic gels

摘要

Method of manufacturing granulates or continuous strips intended for feeding an extrusion machine, formed of a gel comprising at least, as majority elastomer, a styrene thermoplastic elastomer and more than 200 phr of an extender oil, each element of the granulate having a given surface area. The granulate element is sized so that the compactness, of a granulate element, is less than a value decreasing from 1500 m−1 to 375 m−1 and deposited on the surface of said granulates is an anti-tack agent having a value increasing from 2 cm3 to 8 cm3 per m2 of granulate surface area, when the mean size of the particles of said anti-tack agent increases from a value of 1 μm to 100 μm.

主权项

1. A method of manufacturing granulates or pellets comprising forming granulates or pellets formed of an elastomer gel comprising a styrene thermoplastic elastomer and more than 200 per hundred of elastomer by weight of an extender oil, each granulate or pellet being dimensioned so that a compactness of each granulate or pellet is between 1500 m−1 and 375 m−1, and, depositing on a surface of each of said granulates or pellets, are particles of an anti-tack agent having a volume between 2 cm3 and 8 cm3 per m2 of surface area of each granulate or pellet, a mean size of the particles of said anti-tack agent being between 1 μm and 100 μm.