(2)The following entries for E 1206 and E 1207 are inserted after the entry for E 1205 (Basic methacrylate copolymer):‘E 1206 NEUTRAL METHACRYLATE COPOLYMERSynonyms | Ethyl acrylate methyl methacrylate polymer; Ethyl acrylate, methyl methacrylate polymer; Ethyl acrylate, polymer with methyl methacrylate; Methyl methacrylate, ethyl acrylate polymer; Methyl methacrylate, polymer with ethyl acrylateDefinition | Neutral methacrylate copolymer is a fully polymerised copolymer of methyl methacrylate and ethyl acrylate. It is produced using a process of emulsion polymerisation. It is manufactured by redox initiated polymerisation of the monomers ethyl acrylate, methyl methacrylate by using a free radical donor redox initiator system stabilised with polyethylene glycol monostearyl ether and vinylic acid/sodium hydroxide. Residual monomers are removed by means of water vapour distillation.CAS No | 9010-88-2Chemical name | Poly(ethylacrylate-co-methyl methacrylate) 2:1Chemical formula | Poly[(CH2:CHCO2CH2CH3)-co-(CH2:C(CH3)CO2CH3)]Weight average molecular weight | Approximately 600000 g/molAssay/Residue on evaporation | 28,5–31,5 %1 g dispersion is dried in an oven for 3 hours at 110 °C.Description | Milky-white dispersion (the commercial form is a 30 % dispersion of the dry substance in water) of low viscosity with a faint characteristic odour.Infrared absorption spectroscopy | Characteristic of the compoundViscosity | Max. 50 mPa.s, 30 rpm/20 °C (Brookfield viscosimetry)pH-value | 5,5–8,6Relative density (at 20 °C) | 1,037–1,047Solubility | The dispersion is miscible with water in any proportion. The polymer and the dispersion are freely soluble in acetone, ethanol and isopropyl alcohol. Not soluble when mixed with 1 N sodium hydroxide in a ratio of 1:2.Sulphated ash | Not more than 0,4 % in the dispersionResidual monomers | Total of monomers (sum of methyl methacrylate and ethyl acrylate): not more than 100 mg/kg in the dispersionResidual emulsifier | Polyethylene glycol monostearyl ether (macrogol stearyl ether 20) not more than 0,7 % in the dispersionSolvent residues | Ethanol not more than 0,5 % in the dispersionMethanol not more than 0,1 % in the dispersionArsenic | Not more than 0,3 mg/kg in the dispersionLead | Not more than 0,9 mg/kg in the dispersionMercury | Not more than 0,03 mg/kg in the dispersionCadmium | Not more than 0,3 mg/kg in the dispersionE 1207 ANIONIC METHACRYLATE COPOLYMERSynonyms | Methyl acrylate, methyl methacrylate, methacrylic acid polymer; Methacrylic acid, polymer with methyl acrylate and methyl methacrylateDefinition | Anionic methacrylate copolymer is a fully polymerised copolymer of methacrylic acid, methyl methacrylate and methyl acrylate. It is manufactured in aqueous medium by emulsion polymerisation of methyl methacrylate, methyl acrylate and methacrylic acid using a free radical initiator stabilised with sodium lauryl sulphate and polyoxyethylene sorbitan monooleate (polysorbate 80). Residual monomers are removed by means of water vapour distillation.CAS No | 26936-24-3Chemical name | Poly (methyl acrylate-co-methylmethacrylate-co-methacrylic acid) 7:3:1Chemical formula | Poly[(CH2:CHCO2CH3)-co-(CH2:C(CH3)CO2CH3)-co-(CH2:C(CH3)COOH)]Weight average molecular weight | Approximately 280000 g/molAssay/Residue on evaporation | 28,5–31,5 %1 g of the dispersion is dried in an oven for 5 hours at 110 °C.9,2–12,3 % methacrylic acid units on dry substance.Description | Milky-white dispersion (the commercial form is a 30 % dispersion of the dry substance in water) of low viscosity with a faint characteristic odour.Infrared absorption spectroscopy | Characteristic of the compoundViscosity | Max. 20 mPa.s, 30 rpm/20 °C (Brookfield viscosimetry)pH-value | 2,0–3,5Relative density (at 20 °C) | 1,058–1,068Solubility | The dispersion is miscible with water in any proportion. The polymer and the dispersion are freely soluble in acetone, ethanol and isopropyl alcohol. Soluble when mixed with 1 N sodium hydroxide in a ratio of 1:2. Soluble above pH 7,0.Acid value | 60–80 mg KOH/g of dried substanceSulphated ash | Not more than 0,2 % in the dispersionResidual monomers | Total of monomers (sum of methacrylic acid, methyl methacrylate and methyl acrylate): not more than 100 mg/kg in the dispersionResidual emulsifiers | Sodium lauryl sulphate not more than 0,3 % on the dry substancePolysorbate 80 not more than 1,2 % on the dry substanceSolvent residues | Methanol not more than 0,1 % in the dispersionArsenic | Not more than 0,3 mg/kg in the dispersionLead | Not more than 0,9 mg/kg in the dispersionMercury | Not more than 0,03 mg/kg in the dispersionCadmium | Not more than 0,3 mg/kg in the dispersion