Froth and durable foam of dispersed olefin polymers, methods of making foam and articles prepared from same

The invention claims a water dispersion and its producing method and use thereof. A method for producing aqueous dispersion method of said method comprises: The extrusion machine of emulsion zone melting and kneading the following components to produce comprises 1-3% of the water solution of the product kneading: At least one thermoplastic resin the thermoplastic resin comprises ethylene and at least one comonomer alpha olefin copolymer the comonomer selected from c4 c20 linear second branched or cyclic olefin or by general formula is chr h2c compound represented by the formula wherein r is c1 c20 linear branched or cyclic alkyl or aryl c6 c20; And ii at least one dispersing agent; The extrusion machine of the dilution and cooling area diluting the melt kneading of the product which comprises more than 25% water; And c thus forming said water dispersion body wherein said aqueous dispersion of ph is 8-11 said aqueous dispersion of the average grain size is less than 5 um the aqueous dispersion of solid content is about 5% by volume about 74.