US2835620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing vinyl resin granules and covering containing same
Assignee: FRANCIS JOHN WOODFORD BARTLETT
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Filing: 1955-04-04
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Granted: 1958-05-20
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Expires: 1975-04-04
Abstract
No abstract record available.
Inventors
- 👤 Bartlett Francis John Woodford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:43
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/005; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24934; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906; Y10T442/00; Y10T442/20; Y10T442/2762; Y10T442/277; Y10T442/2787
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
177 words
A METHOD FOR MAKING A MALLEABLE GRANULE HAVING AS THE SOLE RESINOUS COMPONENT THEREOF A PLASTICIZED RESIN FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE, COPOLYMERS OF VINYL CHLORIDE AND VINYL ACETATE AND COPOLYMERS OF VINYL CHLORIDE AND VINYLIDENE CHLORIDE AND MIXTURES THEREOF, WHICH COMPRISES MIXING A RESIN OBTAINED BY DISPERSION POLYMERIZATION OF THE SAID GROUP WITH A PLASTICIZER, RAISING THE VISCOSITY OF THE SAID RESIN-PLASTICIZER MIXTURE BY HEATING THE SAME FROM 90*C. TO 140* C., ADDING TO THE SAID MIXTURE A QUANTITY OF A RESIN OBTAINED BY EMULSION POLYMERIZATION OF THE AFOREMENTIONED GROUP SO THAT THE ENTIRE MIXTURE FORMS A THICK PASTE, ADDING TO THE SAID PASTY MIXTURE, FILLERS SO AS TO IMPART THERETO A DOUGHY TEXTURE AND ADDING TO THE SAID DOUGHY MIXTURE MORE OF THE DISPERSION POLYMER SO AS TO PROVIDE A MATERIAL CONTAINING AS ITS RESINOUS CONSTITUENTS 45 TO 90 PERCENT POLYMER OBTAINED BY EMULSION POLYMERIZATION AND 10 TO 55 PERCENT POLYMER OBTAINED BY DISPERSION POLYMERIZATION OF SUCH CONSISTENCY THAT IT CAN BE DISINTEGRATED INTO LUMPS OR GRANULES WITHOUT RECOAGULATION UNTIL SUBJECTED TO PRESSURE.
Claim 2
Independent Claim
177 words
A METHOD FOR MAKING A MALLEABLE GRANULE HAVING AS THE SOLE RESINOUS COMPONENT THEREOF A PLASTICIZED RESIN FROM THE GROUP CONSISTING OF POLYVINYL CHLORIDE, COPOLYMERS OF VINYL CHLORIDE AND VINYL ACETATE AND COPOLYMERS OF VINYL CHLORIDE AND VINYLIDENE CHLORIDE AND MIXTURES THEREOF, WHICH COMPRISES MIXING A RESIN OBTAINED BY DISPERSION POLYMERIZATION OF THE SAID GROUP WITH A PLASTICIZER, RAISING THE VISCOSITY OF THE SAID RESIN-PLASTICIZER MIXTURE BY HEATING THE SAME FROM 90*C. TO 140* C., ADDING TO THE SAID MIXTURE A QUANTITY OF A RESIN OBTAINED BY EMULSION POLYMERIZATION OF THE AFOREMENTIONED GROUP SO THAT THE ENTIRE MIXTURE FORMS A THICK PASTE, ADDING TO THE SAID PASTY MIXTURE, FILLERS SO AS TO IMPART THERETO A DOUGHY TEXTURE AND ADDING TO THE SAID DOUGHY MIXTURE MORE OF THE DISPERSION POLYMER SO AS TO PROVIDE A MATERIAL CONTAINING AS ITS RESINOUS CONSTITUENTS 45 TO 90 PERCENT POLYMER OBTAINED BY EMULSION POLYMERIZATION AND 10 TO 55 PERCENT POLYMER OBTAINED BY DISPERSION POLYMERIZATION OF SUCH CONSISTENCY THAT IT CAN BE DISINTEGRATED INTO LUMPS OR GRANULES WITHOUT RECOAGULATION UNTIL SUBJECTED TO PRESSURE.
Claim 3
Dependent Claim
37 words
A COVERING MATERIAL FOR FLOORS, WALLS, AND THE LIKE HAVING A RESINOUS LAYER AND A BACKING LAYER, AND IN WHICH THE RESINOUS LAYER IS FORMED FROM MALLEABLE GRANULES MADE IN ACCORDANCE WITH THE METHOD OF CLAIM 1.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |