BASF offers a wide range of vinylpyrrolidone
homopolymers with different molecular weights
(K-values) under the name LUVITEC® K. The
products are available as a powder or as
aqueous solutions. Characteristic parameters
of all LUVITEC® K-grades are listed in Table 1.
Details of the test methods and product
specifications are available on request.
High molecular weight PVP powders –
LUVITEC® K 80, K 85, K 90 and K 90 HM –
are packed under an inert gas atmosphere
to maintain its molecular weight. This packaging
guarantees a storage stability of the
powder product in the original container at
room temperature for at least 3 years.
2.1.1