Flame retardant thermoplastic resin composition having excellent weatherability

Patent 7772303 Issued on August 10, 2010. Estimated Expiration Date:

December 11, 2027. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3639506

3789091

3789901

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3883613

Organo-phosphorus flame-retardant for polyurethane foams prepared from graft polyoxyalkylene polyether polyols
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Inventor: Otten

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Inventors

Assignee

CHEIL INDUSTRIES INC.

Application

No. 11953910 filed on 12/11/2007

US Classes:

524/99Six-membered nitrogen ring, e.g., pyridine, etc.

Examiners

Primary: Szekely, Peter

Attorney, Agent or Firm

Summa, Additon & Ashe, P.A.

Foreign Patent References

4209029 DE 09/01/1993
0 075 863 EP 04/01/1983
0731140 EP 09/01/1996
0947547 EP 10/01/1999
1069157 EP 01/01/2001
1069158 EP 01/01/2001
1070744 EP 01/01/2001
60-079048 JP 05/01/1985
61-009450 JP 01/01/1986
10-195287 JP 07/01/1998
11-501348 JP 02/01/1999
11-140270 JP 05/01/1999
11-343382 JP 12/01/1999
2001-040172 JP 02/01/2001
2001-0009848 KR 02/01/2001
2001-0083602 KR 09/01/2001
2003-0030421 KR 04/01/2003
2003-0078189 KR 10/01/2003
2004-0003563 KR 01/01/2004
2004-0027104 KR 04/01/2004
2004-0058773 KR 07/01/2004
9627637 WO 09/01/1996
98/11160 WO 03/01/1998
00/17268 WO 03/01/2000
2005/012416 WO 02/01/2005
2006/039440 WO 04/01/2006

International Classes

C08K 5/3432
C08K 5/5333

Abstract

Disclosed herein is a flame retardant thermoplastic resin composition having excellent weatherability comprising (A) about 100 parts by weight of a rubber modified aromatic vinyl resin comprising (a1) about 15 to about 100% by weight of a grafted copolymer resin prepared by graft-polymerizing about 5 to 65% by weight of a rubbery polymer, about 10 to 95% by weight of an aromatic vinyl monomer and about 0 to 40% by weight of a monomer copolymerizable with said aromatic vinyl monomer; and (a2) about 0 to 85% by weight of a copolymer resin prepared by polymerizing about 40 to 90% by weight of an aromatic vinyl monomer and about 10 to 60% by weight of a monomer copolymerizable with said aromatic vinyl monomer; (B) about 0.1 to about 10 parts by weight of a ring-shaped alkyl phosphonate ester compound; and (C) about 0.05 to about 3 parts by weight of a HALS compound.

Other References

English translation of Chinese Office Action in counterpart Chinese Application No. 200710161095.5, mailed on Dec. 18, 2009.
Chinese Office Action in counterpart Chinese Application No. 200710161095.5, mailed on Dec. 18, 2009.