Unitary porous themoplastic writing nib

Details Unitary porous themoplastic writing nib Unitary porous themoplastic writing nib

1974-04-23

1976-03-09

Ansher, Harold

Coating implements with material supply

Material flows through porous tool

Wick feed from within reservoir to tool

428306, 428402, 428421, 260 25B, 401215, B43K 500, C08J 900, B32B 518

Patent

active

039429032

ABSTRACT:
A process is provided to form spherical thermoplastic particles that involves dispersing a thermoplastic powder in a liquid that is a partial solvent for the thermoplastic, breaking the dispersion into droplets, forming thermoplastic spheres by heating the droplets to a temperature sufficient to at least partially solubilize the thermoplastic and to evaporate the solvent. Unique products, including porous structures, may be produced from material formed by this process.

REFERENCES:
patent: 3022542 (1962-02-01), Davis
patent: 3397938 (1968-08-01), Juelss
patent: 3540914 (1970-11-01), Lin
patent: 3558392 (1971-01-01), Goodenow et al.
patent: 3558582 (1971-01-01), Bacskai

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