Claims
- 1. a process for preparing in finely divided form a solid organic polymeric thermoplastic resin consisting of:
- (a) agitating a mixture of the resin while in the molten state, a dispersion-forming amount of water, and a dispersion-forming amount of an alkali metal salt of an organo-phosphate ester dispersing agent, to provide a hot aqueous dispersion of the resin; and,
- (b) cooling the dispersion to below about 100.degree. C. to provide solid particles of resin.
- 2. The process of claim 1 wherein solid particles of resin produced in step (b) are recovered from the aqueous dispersion.
- 3. The process of claim 1 wherein the resin is a polyolefin.
- 4. The process of claim 1 wherein the resin is polyethylene or polypropylene homopolymer or copolymer.
- 5. The process of claim 1 wherein the resin is ethylene-vinyl acetate copolymer.
- 6. The process of claim 1 wherein the alkali metal salt of the organophosphate ester dispersing agent is the sodium salt of said ester.
- 7. A process for preparing in finely divided form a solid organic polymeric thermoplastic resin consisting of:
- (a) agitating a mixture of the resin while in the molten state, a dispersion-forming amount of water, and a dispersion-forming amount of an alkali metal salt of an organophosphate ester dispersing agent in the presence of a base to regulate the particle size distribution of the dispersed resin; and,
- (b) cooling the dispersion to below about 100.degree. C. to provide solid particles of resin of controlled particle size distribution.
- 8. The process of claim 7 wherein solid particles of resin produced in step (b) are recovered from the aqueous dispersion.
- 9. The process of claim 7 wherein the resin is a polyolefin.
- 10. The process of claim 7 wherein the resin is polyethylene or polypropylene.
- 11. The process of claim 7 wherein the resin is ethylene-vinyl acetate copolymer.
Parent Case Info
This is a continuation of application Ser. No. 934,646, filed Aug. 17, 1978, now U.S. Pat. No. 4,208,528.
Foreign Referenced Citations (1)
Number |
Date |
Country |
88404 |
Mar 1971 |
DDX |
Continuations (1)
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Number |
Date |
Country |
Parent |
934646 |
Aug 1978 |
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