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    PVP-A共聚系列

    chemical structure: Copolymer of vinylpyrrolidone and vinylacetate
    CTFAName: CAS NO: PVP/VA copolymer
    25086-89-9
    Physical Properties: exists as white or milky white powder, and colorless or slight yellow transparent liquid. The clarity of the aqueous solution depends on the proportion of vinylpyrrolidone and vinylacetate.
    specification:
    Product
    VP/VA Ration
    K Value
    pH Value(5% in water)
    Water
    Solid Content
    Sulphated Ash(%,max.)
    Residue NVP(%,max.)
    Residue VA(%,max.)
    Heavy Metals(ppm max.)
    PVP/VA 64P
    60/40
    26-34
    4.0-7.0
    5.0% max.
    95% min.
    0.1
    0.03
    0.01
    20
    PVP/VA 64W
    60/40
    26-34
    4.0-7.0
    48-52%
    48-52%
    0.1
    0.03
    0.01
    20
    PVP/VA 73W
    70/30
    26-34
    4.0-7.0
    48-52%
    48-52%
    0.1
    0.03
    0.01
    20
    PVP/VA 37E
    30/70
    24-32
    --
    0.5%
    48-52%
    0.1
    0.03
    0.01
    20
    PVP/VA 55E
    50/50
    30-38
    -
    0.5%
    48-52%
    0.1
    0.03
    0.01
    20
    PVP/VA 64E
    60/40
    26-34
    -
    0.5%
    48-52%
    0.1
    0.03
    0.01
    20
    PVP/VA 73E
    70/30
    30-38
    -
    0.5%
    48-52%
    0.1
    0.03
    0.01
    20
    Application: Cosmetic Industry: PVP A series products act film-former and hair-fixing agent in cosmetics. Their hygroscopicity decrease with the increasing of the proportion of vinylacetate in the copolymer. Other industries: It performs very well in remoistenable adhesive, adhesives for paper and coating. It can be used as viscosity-enhancing agent for printing ink a protecting aloud for lent-protecting chemicals.
    , ,
    姚记国际