U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Thermoplastic polycarbonate moulding compositions

Patent 4692488 Issued on September 8, 1987. Estimated Expiration Date: Icon_subject June 18, 2006. 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.

Patent References

Re31165

3005795

3294871

3404122

3852394

Thermoplastic moulding compositions
Patent #: 3989770
Issued on: 11/02/1976
Inventor: Prinz ,   et al.

Flame-resistant polymer mixtures
Patent #: 4463130
Issued on: 07/31/1984
Inventor: Serini ,   et al.

Flame-resistant polymer mixtures
Patent #: 4481338
Issued on: 11/06/1984
Inventor: Serini ,   et al.

Polymer composition based on a polycarbonate and a graft copolymer
Patent #: 4560725
Issued on: 12/24/1985
Inventor: Van Bokhoven ,   et al.

Process for the preparation and/or further processing of polymer blends Patent #: 4564654
Issued on: 01/14/1986
Inventor: Serini ,   et al.

Inventors

Application

No. 06/875495 filed on 06/18/1986

US Classes:

524/139, Phosphorus directly bonded to at least one O and at least one H or C only524/140, P directly bonded to oxygen only524/141, Aryl group524/143, Cresyl phosphate, e.g., di, etc.524/504, Solid graft or solid graft-type copolymer with other solid polymer, SICP, or SPFI524/537Solid polymer or SICP derived from an -O-(C=O)O- or hal-(C=O)-O- containing reactant

Examiners

Primary: Jacobs, Lewis T.

Attorney, Agent or Firm

International Classes

C08L 69/00 (20060101)
C08K 5/51 (20060101)
C08K 5/00 (20060101)

Foreign Application Priority Data

1985-06-29 DE

Abstract

The present invention relates to high-impact, flame-repellant thermoplastic polycarbonate moulding compositions consisting of halogen-free polycarbonates, halogen-free copolymers of styrenes and (meth)acrylonitrile, halogen-free phosphorus compounds of the formula (I) ##STR1## tetrafluoroethylene polymers and small amounts of graft polymers and, if appropriate, effective amounts of stabilizers, pigments, flow control agents, mould release agents and/or antistatics, and a process for their preparation.

Other References

  • Chemical Abstracts, vol. 90, Nr. 18, Apr. 1979, p. 36, Nr. 138688v, Columbus, Ohio "Heat Stabilizers for Polycarbonate" Author: Ohara, Osamu
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