US2779743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticizing vinyl resins
Assignee: Elastomer Chemical Corp
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Filing: 1951-12-04
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Granted: 1957-01-29
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Expires: 1971-12-04
Abstract
No abstract record available.
Inventors
- 👤 Edmund H Schwencke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:34
CPC Classifications
C; C08; C08K; C08K5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
THE METHOD OF PLASTICIZING VINYL ESTER RESINS SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE AND A COPOLYMER OF VINYL CHLORIDE AND VINYL ACETATE WHICH COMPRISES MELTING ALUMINUM STEARATE INTO DIOCTY PHTHALATE IN PROPORATIONS OF ONE PART ALUMINUM STEARATE TO BETWEEN FIVE AND TEN PARTS PLASTICIZER, ADDING TRICRESYL PHOSPHATE TO BRING THE MIXTURE TO THE PROPORTIONS OF ONE PART ALUMINUM STEARATE TO BETWEEN SEVENTY-FIVE AND ONE HUNDRED AND TWENTY-FIVE PARTS TOTAL PLASTICIZER, AND MIXING SAID MIXTURE WITH RAESIN IN PROPORTIONS OF ONE PART RESIN TO BETWEEN ONE AND ONE AND THREE-QUARTER PARTS PLASTICIZER.
Claim 2
Independent Claim
93 words
THE METHOD OF PLASTICIZING VINYL ESTER RESINS SELECTED FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE AND A COPOLYMER OF VINYL CHLORIDE AND VINYL ACETATE WHICH COMPRISES MELTING ALUMINUM STEARATE INTO DIOCTY PHTHALATE IN PROPORATIONS OF ONE PART ALUMINUM STEARATE TO BETWEEN FIVE AND TEN PARTS PLASTICIZER, ADDING TRICRESYL PHOSPHATE TO BRING THE MIXTURE TO THE PROPORTIONS OF ONE PART ALUMINUM STEARATE TO BETWEEN SEVENTY-FIVE AND ONE HUNDRED AND TWENTY-FIVE PARTS TOTAL PLASTICIZER, AND MIXING SAID MIXTURE WITH RAESIN IN PROPORTIONS OF ONE PART RESIN TO BETWEEN ONE AND ONE AND THREE-QUARTER PARTS PLASTICIZER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |