Compositions – Preservative agents – Anti-corrosion
Patent
1979-12-19
1982-08-17
Garris, Bradley
Compositions
Preservative agents
Anti-corrosion
366124, 366136, 366159, B01F 312, B01F 508, B01F 510, B01F 1102
Patent
active
043448593
ABSTRACT:
Combination of steps are disclosed which enable the preparation of stable latices of high solids content. The process is characterized, inter alia, by the establishment of a flow of steam as a continuous phase into which an emulsion of a cement of the polymer is dispersed as an aerosol of latex droplets in a solvent-vapor continuum, followed by coalescence of the latex droplets and separation of the resulting coalesced liquid phase from the resulting solvent-vapor phase. In one embodiment provision is made for the continuous production of aqueous emulsion of polymer solvent cement essentially entirely of precursor latex particle size, which may be of narrow size distribution, or may have imparted thereto a wider size distribution, or an altered particle size or viscosity or both.
In other embodiments special provisions are made for altering the viscosity of the aqueous polymer/solvent emulsion and/or of the latex product, by special treatment of at least a part thereof before delivery from the system.
REFERENCES:
patent: 3835061 (1974-09-01), Burke
patent: 4115316 (1978-09-01), Burke
patent: 4127332 (1978-11-01), Thiruvengadam et al.
Exxon Research and Engineering Company
Garris Bradley
Houghton J. Y.
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