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. 05, 2011
Filed:
Jun. 29, 2006
Hung Dang Ngoc, Limeil Brevannes, FR;
Hung Dang Ngoc, Limeil Brevannes, FR;
Eliokem S.A.S., Villejust, FR;
Abstract
The present invention relates to rubbery core/shell polymers that have improved heat and ultraviolet light resistance. These polymers can be blended with thermoplastics to make leathery compositions. The core/shell polymers of this invention have an inner core and an outer shell. The inner core is has repeat units which are derived from (a) butyl acrylate, (b) a member selected from the group consisting of methyl methacrylate, ethyl methacrylate, methyl acrylate, and ethyl acrylate, (c) optionally, an alkoxy ethyl acrylate or an alkoxy ethyl methacrylate, (d) acrylonitrile, (f) a cross-linking agent, and (g) a monomer containing reactive cure sites The outer core has repeat units which are derived from (d) acrylonitrile, (e) styrene, and (f) additional cross-linking agent. The outer core of these polymers is void of repeat units that are derived from methyl methacrylate.