Structured latex core-shell polymer particles suitable for use i

Details Structured latex core-shell polymer particles suitable for use i Structured latex core-shell polymer particles suitable for use i

1985-12-23

1987-05-19

van Balen, William J.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

525902, C08K 534, C08K 513, B32B 2708

Patent

active

046667776

ABSTRACT:
A structured latex polymer particle suitable for use in the preparation of a wet-laid composite sheet having good wet-end and end-use properties. The structured latex particle has a core region comprising from about 10 to about 40 percent of the total polymer particle volume and a shell region comprising from about 60 to about 90 percent of the total polymer particle volume and comprising a vinyl acid. The core region is prepared to have good end-use properties as measured by tensile and elongation and the shell region is prepared to have good wet-end properties as measured by deposition and drainage time. The subject structured latex polymer particles are thus advantageously employed in the preparation of composite sheets of all types to thus form an economical and high quality composite sheet.

REFERENCES:
patent: 4264678 (1981-04-01), Nelsen et al.
patent: 4419471 (1983-12-01), Nelsen et al.

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