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Product Name:Poly(Methylvinylether/Maleic Acid)Copolymer
Product Code:YNR-SP***,YNR-PP***
CAS NO.:25153-40-6
INCI Name:PVM/MA Copolymer
These polymers are free acid form of the copolymer of Methylvinyl ether and Maleic Anhdride,in liquid form.Avalilable in a range of Molecular weights with tunable rheological properties.Those polymers soluble in water,serve as excellent film formers and bioadhesive/mucosal adhesives.
Key Technical Parameters of Solution Form:
| Types |
YR-VM/MASP13 |
YR-VM/MASP70 |
YR-VM/MASP125 |
YR-VM/MASP250 |
| Appearance |
Slightly hazy viscous liquid
|
| pH Value(5% in water) |
1.5~2.5 |
1.5~2.5 |
1.5~2.5 |
1.5~2.5 |
| Active Conent |
12~15% |
12~15% |
12~15% |
12~15% |
| Color(APHA) |
200 max. |
200 max. |
200 max. |
200 max. |
| Specific Viscosity(1% in water) |
0.2~1.0 |
1.0~2.5 |
2.5~2.4 |
4.0~10.0 |
| Heavy Metals |
7 ppm max. |
7 ppm max. |
7 ppm max. |
7 ppm max. |
| Total Aerobic Plate Count |
500cfu/g max. |
500cfu/g max. |
500cfu/g max. |
500cfu/g max. |
| Mold/Yeast |
500cfu/g max. |
500cfu/g max. |
500cfu/g max. |
500cfu/g max. |
| Staphylococcus Aureus |
Negative |
Negative |
Negative |
Negative |
| Salmonella |
Negative |
Negative |
Negative |
Negative |
| Pseudomonas Aeruginosa |
Negative |
Negative |
Negative |
Negative |
| E.Coli |
Negative |
Negative |
Negative |
Negative |
| G-bacilli |
Negative |
Negative |
Negative |
Negative |
Key Techniacl Parameters of Powder Form:
| Types |
YR-VM/MA PP13 |
YR-VM/MAPP70 |
YR-VM/MAPP125 |
YR-VM/MAPP250 |
| Apperance |
White to off-white powder
|
| pH(5% in water) |
1.5~2.5 |
1.5~2.5 |
1.5~2.5 |
1.5~2.5 |
| Loss on drying |
6.0% max. |
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