Heat and oil resistant thermoplastic elastomer
OwnerTomi Heiskanen, Christer Bergstrom +2inventors
InventorsTomi Heiskanen, Christer Bergstrom, Johanna Lampinen, Ville Nurminen
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Abstract
A thermoplastic elastomer. It is produced by impregnating a heat resistant polycondenzation copolymer containing soft segments with acrylate monomers and radical initiators and polymerizing the monomers inside the pellets. By incorporating a cross-linked polyacrylate phase into a block-elastomer based on an engineering polymer, such as polyester, polyamide or polyurethane, softer compounds having excellent heat and oil resistance are obtained.
Claims18
A thermoplastic elastomer with good heat and oil resistance, characterized in that it is produced by impregnating a heat resistant polycondenzation copolymer containing soft segments with acrylate monomers and radical initiators and polymerizing and cross-linking the monomers inside the pellets.
The thermoplastic elastomer according to any of the preceding claims, wherein the polymerized and cross-linked acrylate monomers form 1 to 90 parts by weight, in particular 10 to 70 parts by weight, of the total polymer.
A method of producing a thermoplastic elastomer with good heat and oil resistance, characterized by impregnating a heat resistant polycondenzation copolymer containing soft segments with acrylate monomers and radical initiators and polymerizing and cross-linking the monomers inside the pellets.
Dependencies are inferred from the claim text.