Patent US3060512A successfully refreshed from Google Patents.
US3060512A
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US
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Solventless extrusion method for making shaped microporous articles from thermoplastic resinous material
Assignee: Uniroyal Inc
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Filing: 1959-05-25
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Granted: 1962-10-30
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Expires: 1979-05-25
Abstract
No abstract record available.
Inventors
- 👤 Frank S Martin
- 👤 Edward L Sillcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:21
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/28; B; B29; B29C; B29C44/00; B29C44/34; B29C44/3442; B29C44/36; B29C44/46; B29C44/50; B29C44/505; B29C48/00; B29C48/03; B29C48/07; B29C48/25; B29C48/30; B29C48/35; C04B33/30; C08; C08J; C08J9/00; C08J9/24; H; H01; H01M; H01M50/00; H01M50/40; H01M50/403; H01M50/406; H01M50/409; H01M50/411; H01M50/414; B29C48/08; B29K; B29K2027/00; B29K2027/06; B29K2105/00; B29K2105/06; B29K2105/16; B29L; B29L2007/00; B29L2031/00; B29L2031/34; B29L2031/3468; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A METHOD OF MAKING A SHAPED MICROPOROUS ARTICLE COMPRISING IN COMBINATION THE STEPS OF ADVANCING INTO A CONFINED SPACE A THERMOPLASTIC RESIN AND SILICA HYDROGEL CONTAINING 20 TO 45% SOLIDS, THE WEIGHT RATIO OF RESIN TO HYDROGEL BEING FROM 1:1 TO 1:4, THE SAID RESIN AND HYDROGEL BEING INITIALLY MAINTAINED IN AN UNHEATED CONDITION, COMPACTING AND POSITIVELY PRESSURIZING THE SAID MATERIALS WHILE ADVANCING THE MATERIALS ARE HEATED TO AN SPACE TO A ZONE WHEREIN THE MATERIALS ARE HEATED TO AN ELEVATED TEMPERATURE SUFFICIENT TO FUSE THE RESIN, SAID TEM-
Claim 2
Independent Claim
89 words
A METHOD OF MAKING A SHAPED MICROPOROUS ARTICLE COMPRISING IN COMBINATION THE STEPS OF ADVANCING INTO A CONFINED SPACE A THERMOPLASTIC RESIN AND SILICA HYDROGEL CONTAINING 20 TO 45% SOLIDS, THE WEIGHT RATIO OF RESIN TO HYDROGEL BEING FROM 1:1 TO 1:4, THE SAID RESIN AND HYDROGEL BEING INITIALLY MAINTAINED IN AN UNHEATED CONDITION, COMPACTING AND POSITIVELY PRESSURIZING THE SAID MATERIALS WHILE ADVANCING THE MATERIALS ARE HEATED TO AN SPACE TO A ZONE WHEREIN THE MATERIALS ARE HEATED TO AN ELEVATED TEMPERATURE SUFFICIENT TO FUSE THE RESIN, SAID TEM-
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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) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |