Bruce C Hager

US Patent:

20070021559, Jan 25, 2007

Filed:

Jul 21, 2005

Appl. No.:

11/186339

Inventors:

Andreas Seidel - Dormagen, DE
Dieter Wittmann - Leverkusen, DE
Bruce Hager - Canonsburg PA, US

International Classification:

C08L 51/00
C08L 69/00
B32B 27/00

US Classification:

525067000

Abstract:

An impact modified thermoplastic molding composition comprising aromatic polycarbonate and/or polyester carbonate and a rubber-modified graft polymer prepared by the bulk, solution or bulk-suspension polymerization process is disclosed. The composition that is characterized by its low content of lithium ions features improved hydrolytic resistance.

US Patent:

20070060678, Mar 15, 2007

Filed:

Sep 14, 2005

Appl. No.:

11/226636

Inventors:

Eckhard Wenz - Koln, DE
Pierre Moulinie - Leverkusen, DE
Thomas Eckel - Dormagen, DE
Vera Buchholz - Koln, DE
Dieter Wittmann - Leverkusen, DE
Bruce Hager - Canonsburg PA, US
Fred Zaganiacz - Pittsburgh PA, US

International Classification:

C08K 5/49

US Classification:

524115000

Abstract:

A thermoplastic molding composition suitable for preparing articles by thermoforming is disclosed. The molding composition that comprise A) branched, aromatic poly(ester)carbonate, B) graft polymer, C) an optional vinyl(co)polymer and or polyalkylene terephthalate, D) at least one flame retarding phosphorous compound selected from the group consisting of mono- and oligomeric phosphorus and phosphonic acid esters, phosphonate amines and phosphazenes and E) talc, is characterized in that its flexural modulus at room temperature is at least 3000 N/mmand that its falling dart energy at break, at −30 C., is at least 40.0 J. Sheets extruded of the composition are suitable for making useful articles by thermoforming.

US Patent:

20140275366, Sep 18, 2014

Filed:

Mar 13, 2013

Appl. No.:

13/799395

Inventors:

- Pittsburgh PA, US
James P. Mason - Carnegie PA, US
Bruce L. Hager - Canonsburg PA, US
Marina Rogunova - Pittsburgh PA, US

International Classification:

C08L 69/00
C08L 33/20

US Classification:

524127, 524430, 524281

Abstract:

Flame-retardant polycarbonate compositions and methods for increasing the flame-retardancy of polycarbonate compositions are disclosed. A glass fiber, alumina particles, and wollastonite particles are added to polycarbonate compositions. The addition of the glass fiber, alumina particles, and wollastonite particles to the polycarbonate composition produces a polycarbonate composition having a frame-retardance rating of UL 94 5V-A at 2.3 mm thickness or less. The inventive compositions retain good surface quality.