US2819981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making flexible, vapor-permeable, water-resistant vinyl films and the like having improved slip and hand
Assignee: Goodrich Corp
•
Filing: 1955-02-23
•
Granted: 1958-01-14
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Expires: 1975-02-23
Abstract
No abstract record available.
Inventors
- 👤 Robert E Schornstheimer
- 👤 Hugh P Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:33
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/26; C08J2327/00; C08J2327/02; C08J2327/04; Y; Y10; Y10S; Y10S424/00; Y10S424/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
THE METHOD WHICH COMPRISES MIXING TOGETHER TO FORM A NONAQUEOUS POLYMERIC COMPOSITION A POLYMER OF A MONOMERIC MATERIAL IN WHICH EACH MONOMERIC CONSTITUENT CONTAINS A SINGLE OLEFINIC DOUBLE BOND AND IN WHICH THE PREDOMINANT MONOMER IS A HALOETHYLENE HAVING FROM 1 TO 2 HALOGEN ATOMS ON ONLY ONE CARBON ATOM, A PLASTICIZER FOR SAID POLYMER, A WATER-SOLUBLE SOFTENER FOR SAID POLYMER AND FROM ABOUT 50 TO 300% BY WEIGHT BASED ON THE WEIGHT OF THE POLYMER OF A SOLID, FINELY-DIVIDED, NONHYGROSCOPIC WATER-SOLUBLE PORE-FORMING MATERIAL, FORMING A RELATIVELY THIN CONTINUOUS FUSED LAYER OF SAID COMPOSITION AND TREATING SAID LAYER WITH AN AQUEOUS SOLUTION TO REMOVE SAID SOFTENER AND SAID NONHYGROSCOPIC MATERIAL TO PROVIDE A SLICK AND SHINY, VAPOR-PERMEABLE, WATER-RESISTANT LAYER OF SAID POLYMERIC COMPOSITION WITH IMPROVED HAND AND SLIP CHARACTERISTICS, SAID SOFTENER AND SAID PLASTICIZER BEING PRESENT IN A TOTAL AMOUNT OF FROM ABOUT 30 TO 200 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF SAID POLYMER AND SAID SOFTENER BEING PRESENT IN A MINOR AMOUNT AS COMPARED TO SAID PLASTICIZER.
Claim 2
Independent Claim
171 words
THE METHOD WHICH COMPRISES MIXING TOGETHER TO FORM A NONAQUEOUS POLYMERIC COMPOSITION A POLYMER OF A MONOMERIC MATERIAL IN WHICH EACH MONOMERIC CONSTITUENT CONTAINS A SINGLE OLEFINIC DOUBLE BOND AND IN WHICH THE PREDOMINANT MONOMER IS A HALOETHYLENE HAVING FROM 1 TO 2 HALOGEN ATOMS ON ONLY ONE CARBON ATOM, A PLASTICIZER FOR SAID POLYMER, A WATER-SOLUBLE SOFTENER FOR SAID POLYMER AND FROM ABOUT 50 TO 300% BY WEIGHT BASED ON THE WEIGHT OF THE POLYMER OF A SOLID, FINELY-DIVIDED, NONHYGROSCOPIC WATER-SOLUBLE PORE-FORMING MATERIAL, FORMING A RELATIVELY THIN CONTINUOUS FUSED LAYER OF SAID COMPOSITION AND TREATING SAID LAYER WITH AN AQUEOUS SOLUTION TO REMOVE SAID SOFTENER AND SAID NONHYGROSCOPIC MATERIAL TO PROVIDE A SLICK AND SHINY, VAPOR-PERMEABLE, WATER-RESISTANT LAYER OF SAID POLYMERIC COMPOSITION WITH IMPROVED HAND AND SLIP CHARACTERISTICS, SAID SOFTENER AND SAID PLASTICIZER BEING PRESENT IN A TOTAL AMOUNT OF FROM ABOUT 30 TO 200 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF SAID POLYMER AND SAID SOFTENER BEING PRESENT IN A MINOR AMOUNT AS COMPARED TO SAID PLASTICIZER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |