US3198773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Large size vinyl chloride polymer particles from emulsion latex
Assignee: Honeywell International Inc
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Filing: 1962-09-13
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Granted: 1965-08-03
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Expires: 1982-09-13
Abstract
No abstract record available.
Inventors
- 👤 Stoloff Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:44
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; C08J3/122; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A PROCESS FOR THE PRODUCTION OF LARGE SIZE POLYMER PARTICLES SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF VINYL CHLORIDE AND COPOLYMERS OF VINYL CHLORIDE WITH OTHER ETHYLENICALLY UNSATURATED COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF VINYL ACETATE, VINYL PROPIONATE, DIETHYL MALEATE AND VINYLIDENE CHLORIDE FROM EMULSION LATEX CONTAINING SAID POLYMERS WHICH COMPRISES SPRAY DRYING THE EMULSION LATEX TO REMOVE THE AQUEOUS PHASE OF THE EMULSION LATEX AND PRODUCE SMALL SIZE PARTICLES OF POLYMER, THEREAFTER ADMIXING AND DISPERSING SAID SMALL SIZE PARTICLES OF POLYMER WITH ADDITIONAL EMULSION LATEX TO GIVE A RATIO OF ADDED SOLIDS TO ORIGINAL LATEX SOLIDS OF 0.25:1-1.5:1 BY WEIGHT, SPRAY DRYING SAID MIXTURE OF SMALL PARTICLES OF POLYMER DISPERSED IN THE EMULSION LATEX TO REMOVE THE AQUEOUS PHASE OF THE MIXTURE AND PRODUCE LARGE SIZE PARTICLES OF POLYMER.
Claim 2
Dependent Claim
132 words
A PROCESS FOR THE PRODUCTION OF LARGE SIZE POLYMER PARTICLES SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF VINYL CHLORIDE AND COPOLYMERS OF VINYL CHLORIDE WITH OTHER ETHYLENICALLY UNSATURATED COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF VINYL ACETATE, VINYL PROPIONATE, DIETHYL MALEATE AND VINYLIDENE CHLORIDE FROM EMULSION LATEX CONTAINING SAID POLYMERS WHICH COMPRISES SPRAY DRYING THE EMULSION LATEX TO REMOVE THE AQUEOUS PHASE OF THE EMULSION LATEX AND PRODUCE SMALL SIZE PARTICLES OF POLYMER, THEREAFTER ADMIXING AND DISPERSING SAID SMALL SIZE PARTICLES OF POLYMER WITH ADDITIONAL EMULSION LATEX TO GIVE A RATIO OF ADDED SOLIDS TO ORIGINAL LATEX SOLIDS OF 0.25:1-1.5:1 BY WEIGHT, SPRAY DRYING SAID MIXTURE OF SMALL PARTICLES OF POLYMER DISPERSED IN THE EMULSION LATEX TO REMOVE THE AQUEOUS PHASE OF THE MIXTURE AND PRODUCE LARGE SIZE PARTICLES OF POLYMER.
References Cited (Backward Citations)
US2187877A
Cited
US2674593A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |