Aqueous dispersion and process for preparation thereof

Details Aqueous dispersion and process for preparation thereof Aqueous dispersion and process for preparation thereof

1988-08-10

1990-11-13

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524500, 524502, 524505, 524517, 524522, 524523, 524526, 524527, C08L 5100

Patent

active

049702580

ABSTRACT:
When a hydrophobic thermoplastic resin such as an olefin resin and a water-insoluble or non-water-swelling polymer containing a carboxylic acid salt group are melt-kneaded in the presence of water, phase inversion of forming a dispersion comprising water as the dispersion medium phase and resin particles as the dispersed phase is caused even if the amount of water is very small. If an anionic surfactant, optionally together with a solvent or oil, is made present in the composition to be melt-kneaded, the size of dispersed particles can be greatly reduced in the formed aqueous dispersion even if a resin having a very high molecular weight or a high melt viscosity is used.

REFERENCES:
patent: 4174335 (1979-11-01), Ohdaira et al.

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