Chemical Name:
Methacrylic acid-ethyl acrylate copolymer (weight ratio ≈ 1:1)

中文名:
甲基丙烯酸-丙烯酸乙酯共聚物水分散体 (L30D-55 / MAE 30DP)
甲基丙烯酸共聚物 C型 (L100-55干粉规格在 CDE 曾用名)

English name:
Methacrylic Acid and Ethyl Acrylate Copolymer Dispersion (NF36)
Methacrylic Acid - Ethyl Acrylate Copolymer (1:1) Dispersion 30 Per Cent (EP9.0)

Japanese name:
メタクリル酸コポリマーLD / 乾燥メタクリル酸コポリマーLD（医薬品添加物規格）

CAS: 25212-88-8
UNII：NX76LV5T8J

Quality specification: CP、USP、EP、JPE

Physical properties
Properties: Milky white low viscosity liquid (L 30D-55) or white powder (L 100-55); slightly odor. The solids contained 0.7% sodium lauryl sulfate and 2.3% polysorbate 80.
Average molecular weight Mw: ≈320,000 g/mol;  

Tg: 96 °C.
Extensibility: Poor (10-30% plasticizer added).

Chemical properties
Anionic property, weakly acidic;
Swell at pH <5.5 , permeability; dissolve below pH > 5.5  (duodenal release).

Chemical name:
Methyl methacrylate-methyl methacrylate copolymer (weight ratio ≈1:1)
中文名:
甲基丙烯酸共聚物A型
聚丙烯酸树脂II (CP2015)
English name:
Methacrylic Acid and Methyl Methacrylate Copolymer (1:1) (NF36)
Methacrylic Acid - Methyl Methacrylate Copolymer (1:1) (EP9.0)
Japanese name:
メタクリル酸コポリマーL（医薬品添加物規格）

CDE Registration No.:F20200000241

CAS: 25086-15-1

UNII: 74G4R6TH13

Packing specification: 10kg/barrel

Quality specification：CP、USP、EP、JPE

Physical properties
Properties: white granules or powder (L 100); slightly odor.
Mw: ≈125,000 g/mol
Tg: not available (pyrolysis)
Extensibility: very poor (plasticizer with 40-50% copolymer weight).

Chemical properties
Anionic property, weakly acidic;
pH <6.0 swell, permeability; pH > 6.0 dissolution (jejunal release).

Chemical name:
Methyl methacrylate-methyl methacrylate copolymer (weight ratio ≈ 1:2)
中文名:
甲基丙烯酸共聚物B型
聚丙烯酸树脂III (CP2015)
English name:
Methacrylic Acid and Methyl Methacrylate Copolymer (1:2) (NF36)
Methacrylic Acid - Methyl Methacrylate Copolymer (1:2) (EP9.0)
Japanese name:
メタクリル酸コポリマーS（医薬品添加物規格）

CAS: 25086-15-1

UNII: 5KY68S2577

Packing specification: 10kg/barrel

Quality specification：CP、USP、EP、JPE

Physical properties
Properties: white granules or powder (S 100); slightly odor.
Mw: ≈125,000 g/mol
Tg: not available (pyrolysis)
Extensibility: very poor (plasticizer with 40~50% copolymer weight ratio)

Chemical properties
Anionic property, weakly acidic;
pH < 7.0 swell, permeable; pH > 7.0 dissolution (colon release).