PVC mixture and method for its production
AssigneeNorsk Hydro ASA
InventorsBård Sæthre, Steinar Pedersen
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Abstract
A PVC mixture which can be converted into plastisol, prepared by a process with comprises mixing a dispersion of spherical and compact PVC particles with a narrow size distribution (CV 0-25%) in the range 10 to 50 micrometers, with a PVC latex produced by standard emulsion-, dispersion-, miniemulsion-, microsuspension-, or seed-polymerisation in such a way that the PVC particles are homegeneously dispersed without agglomeration in the aqueous phase, and processing the resulting dispersion into a free flowing dry powder.
Claims13
A process for producing a PVC mixture which can be converted into plastisol, which comprises mixing a dispersion of spherical and compact PVC particles with a narrow size distribution (CV 0-25%) in the range 10 to 50 micrometers, with a PVC latex produced by standard emulsion-, dispersion-, miniemulsion-, microsuspension-, or seed-polymerisation, in such a way that the PVC particles are homogeneously dispersed without agglomeration in the aqueous phase, and processing the resulting dispersion into a free flowing dry powder.
A PVC mixture which can be converted into plastisol, prepared by a process with comprises mixing a dispersion of spherical and compact PVC particles with a narrow size distribution (CV 0-25%) in the range 10 to 50 micrometers, with a PVC latex produced by standard emulsion-, dispersion-, miniemulsion-, microsuspension-, or seed-polymerisation, in such a way that the PVC particles are homogeneously dispersed without agglomeration in the aqueous phase, and processing the resulting dispersion into a free flowing dry powder.
Dependencies are inferred from the claim text.