EUDRAGIT RS 12,5 is a copolymer of ethyl acrylate, methyl methacrylate and a low content of methacrylic acid ester with quaternary ammonium groups. The ammonium groups are present as salts and make the polymers permeable. Physical properties: It is a light yellow liquid of low viscosity, clear to slightly cloudy with a characteristic odour of the solvents. Characteristics: - Customized release profile by combination of RL and RS grades in different ratios
- Suitable for matrix structures
CAS number: 33434 – 24 – 1Chemical/ IUPAC name: Poly(ethyl acrylate-co-methyl methacrylate-co-trimethylammonioethyl methacrylate chloride) 1:2:0.1 INCI name: Acrylates / Ammonium Methacrylate Copolymer Information provided by Evonik |