Product Information
Chemical Name Poly(Methyl Vinyl Ether-alt-Maleic Anhydride)
CAS No 9011-16-9INCI PVM/MA Copolymer
Appearance White /off-white fine powder
Commercial grades Multiple molecular-weight grades (130k-2,000k)
Chemphysical Properties
‑ Solubility: Insoluble in pure water; hydrolyzes and dissolves in aqueous alkaline solution; soluble in ketones & esters
‑ Bulk density:0.34‑0.45 g/cm³
‑ Character: Good flexible film-forming performance, high binding strength, easy to derivatize
‑ Stability: Stable under dry normal storage conditions
Quality Specification
| Test Item | Standard |
|---|---|
| Appearance | White to off‑white powder |
| Assay (polymer) | ≥98.0 % |
| Loss on drying | ≤2.0 % |
| Residual maleic anhydride | Not detected |
| Intrinsic viscosity (1% MEK solution) | 0.1‑4.0 (depends on MW grade) |
Application & Use
Cosmetics: Hair-spray, hair gel, mousse; film-former for hair-fixing formulas.
Oral care: Denture adhesive, dental binding agent.
Pharmaceutical: Tablet binder, sustained-release excipient.
Industrial: Dispersant, thickener, adhesive, coating additive.
Packing Delivery & Storage
‑ Packing:25 kg fibre drum; small package 1 kg/bag
‑ Storage: Keep tightly sealed, cool dry warehouse, avoid moisture absorption
‑ Shelf-life:24 months under proper storage
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