IP Library Patent Application 13933371
Patent Application
App. No. 13/933,371

POLYCARBONATE COMPOSITION WITH LOW STATIC PERFORMANCE

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Quick Facts
Patent No.
US None
App. No.
13/933,371
Abstract

The present invention provides a process for reducing static charge in a polycarbonate part involving combining a polycarbonate and a diphosphite to form a composition and molding a part from the composition, wherein the part exhibits reduced static charge compared to a part made without addition of the diphosphite.

Claims (8)

1 . A process for reducing static charge in a polycarbonate part comprising: combining a polycarbonate and a diphosphite to form a composition; and

molding a part from the composition,

wherein the part exhibits reduced static charge compared to a part made without addition of the diphosphite.

2 . The process according to claim 1 , wherein the diphosphite comprises bis(2,4-dicumylphenyl)pentaerythritol diphosphite.

3 . The process according to claim 1 , wherein the diphosphite is included in an amount of from about 0.04% by weight to about 0.4% by weight based on the weight of the composition.

4 . The process according to claim 1 , wherein the part comprises an automobile headlight lens.

5 . A composition made by a process comprising combining a polycarbonate and a diphosphite to form a composition, wherein a part made from the composition exhibits reduced static charge compared to a part made from a composition without addition of the diphosphite.

6 . A part made by the process according to claim 1 .

Assignments (2)
CHANGE OF NAME Recorded Oct 16, 2015
From: BAYER MATERIALSCIENCE LLC
To: COVESTRO LLC
Reel/Frame 036876/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 13, 2013
From: FRANCIS, ROBYN; MASON, JAMES P.; GERACE, MICHAEL A.
To: BAYER MATERIALSCIENCE LLC
Reel/Frame 030996/0989 →