The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 2017
Filed:
Dec. 14, 2011
Christophe Navarro, Bayonne, FR;
Stephane Girois, Norfolk, VA (US);
Elisabeth Bay, Hagetmau, FR;
Jean-claude Saint-martin, Escondeaux, FR;
Christophe Navarro, Bayonne, FR;
Stephane Girois, Norfolk, VA (US);
Elisabeth Bay, Hagetmau, FR;
Jean-Claude Saint-Martin, Escondeaux, FR;
Arkema France, Colombes, FR;
Abstract
The present invention relates to new impact modifiers and a process for making these new impact modifiers and their use in polymeric compositions. More particularly the present invention relates to a new polymeric impact modifier with a core-shell structure made by a multistage polymerization process comprising at least one gradient polymer. The present invention relates as well to a process preparing such an impact modifier, especially its recovery process after the end of the polymerization. The present invention also relates to a thermoplastic composition comprising the new impact modifier.