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:
Jan. 29, 2019
Filed:
Apr. 24, 2015
Applicant:
Ineos Styrolution Group Gmbh, Frankfurt, DE;
Inventors:
Assignee:
INEOS STYROLUTION GROUP GMBH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 25/12 (2006.01); C08L 55/02 (2006.01); C08F 279/02 (2006.01);
U.S. Cl.
CPC ...
C08F 279/02 (2013.01); C08L 25/12 (2013.01);
Abstract
The present invention relates to a process for the production of styrene graft copolymers comprising addition and graft copolymerization of styrene monomers A1 and vinyl cyanide monomers A2 to a graft base B where the ratio by mass of A1 to A2 in the monomer feed at the end of the monomer feed time is lower than the ration by mass integrated over the entire monomer feed time. The present invention further relates to a graft copolymer obtainable by a process according to the invention, a molding composition comprising such a graft copolymer, and a molding obtained from such a molding composition.