Poly(Methylvinylether/Maleic Acid)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 |
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| 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 |
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| 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. | 6.0% max. | 6.0% max. | 6.0% max |
| Specific Viscosity | 0.2~1.0 | 1.0~2.5 | 2.5~4.0 | 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 |
Applications:
These Copolymers are available for use in hair care and oral care products.In toothpaste and mouths rinses,it helps control formation and growth of tartar,prtects enamel from dietary acid and retains active ingredients.The strong bioadhesive founction of the polymer retains antimicrobical agents,flavors,coolants,breath fresheners,medicants and other insoluble actives in the mouth.
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