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:
May. 09, 2006
Filed:
Dec. 08, 2003
Daniel H. Bolton, Aliquippa, PA (US);
Pierre Moulinie, Imperial, PA (US);
David M. Derikart, Tarentum, PA (US);
Nicanor Kohncke, Pittsburgh, PA (US);
Daniel H. Bolton, Aliquippa, PA (US);
Pierre Moulinie, Imperial, PA (US);
David M. Derikart, Tarentum, PA (US);
Nicanor Kohncke, Pittsburgh, PA (US);
Bayer MaterialScience LLC, Pittsburgh, PA (US);
Abstract
A compatible blend of polycarbonate resin with a vinyl (co)polymer blending partner is disclosed. The preparation of inventive blend comprise reactive blending of polycarbonate, a vinyl (co)polymer and a novel compatibilizer in the presence of a transesterification catalyst and under conditions of time and temperature designed to promote transesterification. The compatibilizer is the polymerized reaction product of at least one vinyl monomer that contains no hydroxy groups and a hydroxyl containing monomer conforming to (I)where R denotes H or C–Calkyl, Rdenotes H, Cl, Br, C–Calkyl, cyclohexyl, or C–Calkoxy, a is 0 or 1, b is 0 or 1, c is 0 or 1, n is an integer of 0 to 4 and X is an OH group. The compatible blends of the invention are characterized by their improved properties.