1、Name of Product: Vinylpyrrolidone and vinyl acetate copolymer /Copovidon
CAS NO.：25249-54-1, 9003-39-8
2、Overview of performance:
Cosmetics: PVP/VA series products play a good role as film-former and hair- fixing agent. It’s hygroscopicity decrease with increase in the proportion of vinylacetate in the molecular. This property is extremely useful for PVP/VA as hair spays and hair- setlotion. If used with PVP- K30, the effect would be enhanced.
Other Utility: Remoistenable adhesive and other adhesives for paper. Viscosity-enhancing agent and protecting colloid for printing ink. Water-soluble PVP/VA 64 series, can act as emulsing agent and protecting colloid for plant-protecting Chemicals and other dispersing systems. Binder in coatings.
3、Technical Data:
|
specification
|
VP/VA
|
K value
|
vinylpyrrolidone %
|
Water %
|
solid-content %
|
|
VA73E
|
70/30
|
30-38
|
≤0.2
|
≤0.5
|
48-52
|
|
VA64E
|
60/40
|
30-36
|
≤0.2
|
≤0.5
|
48-52
|
|
VA64粉
|
60/40
|
26-34
|
≤0.2
|
≤0.5
|
≥95
|
|
VA55E
|
50/50
|
28-36
|
≤0.2
|
≤0.5
|
48-52
|
|
VA37E
|
30/70
|
28-36
|
≤0.2
|
≤0.5
|
48-52
|