IP Library Granted Patent US 8,741,992
Granted Patent B2
US 8,741,992 · App. 13/513,787 · Granted Jun 3, 2014

Polycarbonate compositions with phenolically substituted triazine derivative

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Quick Facts
Patent No.
US 8,741,992
App. No.
13/513,787
Granted
Jun 3, 2014
Kind
B2
Abstract

Disclosed is a composition comprising polycarbonate and from 0.0001 weight % to 0.1000 weight % of 2-(2,4-dihydroxy)phenyl-4,6-di(4-phenyl)phenyl-1,3,5-triazine.

Claims (12)

1. A composition comprising polycarbonate and from 0.0001 weight % to 0.1000 weight % of 2-(2,4-dihydroxy)phenyl-4,6-di(4-phenyl)phenyl-1,3,5-triazine.

2. The composition of claim 1 , further comprising from 0.0001 weight % to 10.0000 weight % of at least one further UV absorber.

3. The composition of claim 1 , wherein the at least one further UV absorber is selected from the group consisting of benzotriazoles and triazines.

4. The composition of claim 3 , wherein the composition contains from 0.0001 weight % to 10.000 weight %, based on the total weight of the composition, of at least one UV absorber from the group of the benzotriazoles.

5. A moulding comprising the composition of claim 1 .

6. The moulding of claim 5 , wherein the moulding is produced by extrusion or by injection-moulding.

7. The moulding of claim 5 , wherein the moulding is a single-layer or multi-layer solid, multi-wall or corrugated sheet, wherein one or more of the layers of the sheet comprises the composition of claim 1 .

8. The moulding of claim 7 , wherein the moulding is a multi-layer sheet, wherein at least one layer comprising the composition of claim 1 is produced by coextrusion.

9. A high optical quality moulding comprising the composition of claim 1 .

10. The composition of claim 1 , wherein said composition comprises from 0.001 weight % to 0.090 weight % of 2-(2,4-dihydroxy)phenyl-4,6-di(4-phenyl)phenyl-1,3,5-triazine.

11. The composition of claim 3 , wherein said composition comprises from 0.0001 weight % 0.4000 weight %, based on the total weight of the composition, of at least one UV absorber selected from the group consisting of benzotriazoles.

12. The composition of claim 3 , wherein said composition comprises from 0.001 weight % to 0.050 weight %, based on the total weight of the composition, of at least one UV absorber selected from the group consisting of benzotriazoles.

Assignments (4)
CHANGE OF NAME Recorded Apr 6, 2016
From: BAYER MATERIALSCIENCE AG
To: COVESTRO DEUTSCHLAND AG
Reel/Frame 038365/0392 →
CHANGE OF NAME Recorded Mar 21, 2016
From: BAYER MATERIALSCIENCE AG
To: COVESTRO DEUTSCHLAND AG
Reel/Frame 038188/0842 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 9, 2016
From: BAYER INTELLECTUAL PROPERTY GMBH
To: BAYER MATERIALSCIENCE AG
Reel/Frame 038045/0298 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 22, 2012
From: MEYER, ALEXANDER; RUEDIGER, CLAUS; BLASCHKE, ULRICH; WAGNER, MICHAEL
To: BAYER INTELLECTUAL PROPERTY GMBH
Reel/Frame 028825/0391 →