TH9854B - Carbonate resins, polymers containing low volatility aromatic phosphate ester compounds. - Google Patents

Abstract

The invention revealed a mixture of carbonate polymers consisting of (a) carbonate polymers with an average molecular weight of 20,000 to 40,000 and (b) percent by weight from more than 0.1 to Less than 1.0 (based on weight of carbonate polymer mixtures), low volatility aromatic phosphate ester compounds (c) weight percentages from 0.01 to 1.0 (based on weight Of compound carbonate polymers) of alkali metal salts with a pH of at least 7, preferably aromatic phosphate ester with low volatility. This was chosen from Among the oligomers of aromatic phosphate ester or haloaryyl phosphate compounds, it was found that it would be better to use low-volatility aromatic phosphate ester. Which from past experience Weight loss of not more than 5% at 250 ํ C in a thermogravimetric analysis. (thermogravimetre analysis) (TGA) with a heat rate of 20 ํ C per minute, which is better, not more than 40% at 300 ํ C. It was found that according to this mixture, it was acceptable according to laboratory criteria. (UL-94) V-2 sequence, without obvious deferment. From the assembly feature Good combination of resin of carbonate polymer In the use of extruded sheets, it was found that it was better to combine the basic alternative with the alkali metal salt which achieved the effect of the V-2 sequence.

Claims (2)

1. Mixture Carbonate Polymer Containing (a) carbonate polymers With average weight Of molecular weights from 20,000 to 40,000 and an anti-ignition additive containing (b) low volatility aromatic phosphate ester compounds from more than 0.1 to less than 1.0% wt. (Depending on the weight of the carbonate-polymer mixture) and (c) the alkali metal salt with a pH of at least 7 from 0.001 to 0.1% by weight (depending on the weight of the Mixture Carbonate Polymer) 2. Mixture Carbonate Polymer According to claim No. 1, where aromatic phosphate ester with low volatility Selected from a group of aromatic phosphate ester oligomers or haloaryyl phosphate compounds. 3. Carbonate polymers mixtures. According to claim 1, where aromatic phosphate ester with low volatility This was selected from a group of oligomers of aromatic phosphate ester or henaryyl phosphate compounds, from past experience there was a weight loss of no more than 5% by weight at 250 ° C. When it was heated to a temperature of 500 ํ C in thermogravimetric (TGA) analysis with a heating rate of 20 ํ C per minute. 4. Mixture of carbonate polymers according to the claim. Item 1 Where aromatic phosphate ester with low volatility is selected from a group of aromatic phosphate ester oligomers or haloryl phosphate compounds. The weight was lost not more than 40% at 300 ํ C when heated to 500 ํ C in the TGA with a heating rate of 20 ํ C per minute. 5. Mixture of carbonate polymer. Clause 1 contains (b) low volatility aromatic phosphate ester compound from 0.2 to 0.6 6. Carbonate polymer mixture. According to claim 1, containing (b) low volatility aromatic phosphate ester compounds from 0.3 to 0.5 7. Carbonate polymer mixtures. According to claim No. 1, where the carbonate polymer has weight Average molecular weight from 26,000 to 36,000. 8. Mixture of carbonate polymer. According to claim No. 1 that does not contain anti-additives Can resist ignition with a halogen base Alkali metal salts Or alkali-earth metal, antimony, bismuth or poly (Tetra Fluoroethylene). 9. Mixture of carbonate polymers. According to claim 1, which is unique in that the sample Test molded from mixtures and has a thickness of one-sixteen inches (1.6mm) and one-eight inches (3.2mm) with a UL-94 test rate of V-2 1 0. Poly carbonate mixtures. Mercedes According to claim 1, containing (b) aromatic oligomers Phosphate ester with low volatility 1 1. Mixture of carbonate polymer. According to claim 1, containing (b) low-volatility haloaryyl phosphate ester compound 1 2. Carbonate-polymer mixture. According to claim 1, containing (b) low-volatility aromatic phosphate ester oligomers. This can be denoted by the formula (chemical formula) where R is selected from the group containing the radical C1-C20, alkylines or linear, branched or cyclic alkylidines. Or the radical C6-C30 arylene containing one or more groups of aromatic pneumonia or its substituted derivatives of any of the same; Z is a mono-valent radical, C6 arylene, and n is approximately 1 to approx. 3 1. 3. Mixture of carbonate polymers. According to claim 1, containing (b) low-volatility haloaryyl phosphate ester compounds. That may be denoted by the formula (chemical formula), where each independent sample R is selected from a group containing (ii) radicals C6-C30 arylene containing one or more aromatic nuclei groups. And (iii) the C6-C30 arylene-containing brominate radicals with aromatic nuclei One group or more And with at least 1 to 5 bromine radicals, haloryl phosphate radicals have at least C6-C30 brominate radicals, one arylene radical with one or more aromatic nuclei. Than and has 1 to 5 radicals of brominated radicals 1 4. Mixture of carbonate polymers According to claim 11, consisting of (b) the oligomer compounds of resorcinol Low-volatility diphenyl phosphate ester 1 5. Mixture of carbonate polymers according to claim 1, containing oligomers, bisphenol A, diphenyl phosphate s. 1 6. Mixture of carbonate polymers. According to claim 1, consisting of (b) tris (2, 4) - dibromophenyl phosphate 1 7. Carbonate polymer mixtures According to the claim No. 1, which has no other than Carbonate Polymer 1 8. Mixture Carbonate Polymer According to claim 1, containing (c) alkali metal salts from approximately 0.001 to approximately 0.1 percent by weight. (Depending on the weight of the substance Mix carbonate polymer) 1 9. Mixing carbonate polymer According to claim No. 18 where (c) this alkali metal salt It is an aromatic compound, sulfur and alkali metals. It is selected from the sodium-containing group. Or potassium 2 0. Mixture carbonate polymer. According to claim 19, where the alkali metal salt has a PH of at least 7.5 2. 1. Mixture Carbonate Polymer According to claim 19, where this alkali metal salt is aromatic, sulfimide and alkali metal Were selected from a group containing sodium or potassium 2 2. Extruded Plates Which was prepared from a carbonate polymer according to claim 18.