Flexible thermoplastic resins having improved tensile strength
AssigneeAtofina
InventorsThibaut Montanari, Chrystelle Guibouin, Marius Hert, Patrice Perret, Jacques Thomasset, Didier Roumilhac
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Abstract
The invention relates to a thermoplastic composition comprising at least one polymer (M) forming a matrix in which are dispersed at least one polymer (S) and at least one polymer (K) and such that its tensile strength is greater than that of a composition comprising only (M) and (S), the proportion by weight of (M) being the same.
Claims9
A thermoplastic composition comprising at least one polymer (M) forming a matrix, nodules of (K), encapsulated nodules wherein polymer (K) is entirely or partly encapsulated in at least one polymer (S), and nodules of (S),
- wherein the nodules are dispersed in the matrix, and the encapsulated nodules are smaller than the nodules of (S)
- and size of the encapsulated nodules is less than 0.5 μm.
A process for preparing a multiphase thermoplastic composition comprising at least one polymer (M) forming a matrix, nodules of (K), encapsulated nodules wherein polymer (K) is entirely or partly encapsulated in at least one polymer (S), and nodules of (S),
- wherein the nodules are dispersed in the matrix, and the encapsulated nodules are smaller than the nodules of (S)
- and size of the encapsulated nodules is less than 0.5 μm, which process comprises one step:
- simultaneously introducing (M), (K) and (S) in a device and mixing them.
Dependencies are inferred from the claim text.