Modified release agent for improved polycarbonate stability

Patent metadata

Field	Value
Publication number	US-2016355668-A1
Application number	US-201415110843-A
Country	US
Kind code	A1
Filing date	Dec 29, 2014
Priority date	Jan 6, 2014
Publication date	Dec 8, 2016
Grant date	—

Abstract

The presently disclosed subject matter relates to polycarbonate compositions and methods of manufacturing the polycarbonate compositions. In one exemplary embodiment, a polycarbonate composition of the present disclosure includes one or more polycarbonate polymers, one or more catalysts and one or more bi-functional additive agents, wherein the bi-functional additive has quenching and release activities.

First claim

1 . A polycarbonate composition, comprising:
one or more polycarbonate polymers; one or more catalysts; and one or more one bi-functional additive agents; wherein the bi-functional additive agent has quenching and release activities.

2 . The composition of claim 1 , wherein the one or more bi-functional additive agents is selected from a carboxylic acid derivative of glycerol monostearate, a sulphonic acid derivative of glycerol monostearate, a carboxylic acid derivative of pentaerythritol tristearate, a sulphonic acid derivative of pentaerythritol tristearate, and combinations thereof.

3 . The composition of claim 1 , wherein the one or more polycarbonate polymers is generated from a melt polycondensation reaction of an aromatic dihydroxy compound and a carbonic acid diester in the presence of a catalyst.

4 . The composition of claim 1 , wherein the one or more bi-functional additive agents is present in the amount of about 1.0 to about 10.0 parts per million.

5 . The composition of claim 1 , wherein the one or more catalysts comprises an alkali metal, an alkaline earth metal, and combinations thereof.

6 . The composition of claim 1 , further comprising one or more mold release agents.

7 . The composition of claim 6 , wherein the one or more mold release agents is selected from glycerol monostearate, pentaerythritol tetrastearate, and combinations thereof.

8 . The composition of claim 1 , further comprising an additive selected from heat stabilizers, stabilization adjuvants, plasticizers, antioxidants, photostabilizers, nucleating agents, heavy metal-inactivating agents, flame retardants, lubricants, antistatic agents, colorants, ultraviolet absorbers, and combinations thereof.

9 . A method for generating a polycarbonate composition, comprising:
introducing a feedstream comprising an aromatic dihydroxy compound and carbonic acid diester into a reactor in the presence of one or more catalysts to generate one or more polycarbonate polymers; and adding one or more bi-functional additive agents that has quenching and release activities to the one or more polycarbonate polymers to generate a polycarbonate composition.

10 . The method of claim 9 , wherein the aromatic dihydroxy compound is bisphenol-A.

11 . The method of claim 9 , wherein the carbonic acid diester is diphenyl carbonate.

12 . The method of claim 9 , wherein the one or more bi-functional additive agents is selected from a carboxylic acid derivative of glycerol monostearate, a sulphonic acid derivative of glycerol monostearate, a carboxylic acid derivative of pentaerythritol tristearate, a sulphonic acid derivative of pentaerythritol tristearate, or combinations thereof.

13 . The method of claim 9 , wherein the one or more catalysts comprises an alkali metal, an alkaline earth metal, and combinations thereof.

14 . The method of claim 9 , wherein the one or more catalysts comprises potassium hydroxide.

15 . The method of claim 9 , further comprising transporting the one or more polycarbonate polymers to an extruder to form an extrudate, wherein the one or more bi-functional additive agents is added to the polycarbonate polymers in the extruder.

16 . A method for generating a polycarbonate composition, comprising:
producing one or more polycarbonate polymers in the presence of one or more catalysts; and adding one or more bi-functional additive agents that has quenching and release activities to the one or more polycarbonate polymers to generate a polycarbonate composition.

17 . The method of claim 16 , wherein the one or more bi-functional additive agents is selected from a carboxylic acid derivative of glycerol monostearate, a sulphonic acid derivative of glycerol monostearate, a carboxylic acid derivative of pentaerythritol tristearate, a sulphonic acid derivative of pentaerythritol tristearate, or combinations thereof.

18 . The method of claim 16 , wherein the one or more catalysts comprises an alkali metal, an alkaline earth metal, and combinations thereof.

19 . The method of claim 16 , wherein the one or more catalysts comprises potassium hydroxide.

20 . The method of any claim 16 , wherein the one or more catalysts comprises potassium hydroxide.

Assignees

• Saudi Basic Ind Corp

Inventors

• Seoane Carlos Godinez

Classifications

• C08G64/307 Primary

  and phenols · CPC title

• C08K3/22

  of metals · CPC title

• C08K5/09

  Carboxylic acids; Metal salts thereof; Anhydrides thereof · CPC title

• C08K5/092

  Polycarboxylic acids · CPC title

• C08L69/00 Primary

  Compositions of polycarbonates; Compositions of derivatives of polycarbonates · CPC title