US3230289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicone treatment for paper
Assignee: Wacker Chemie AG
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Filing: 1962-06-08
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Granted: 1966-01-18
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Expires: 1982-06-08
Abstract
No abstract record available.
Inventors
- 👤 Eder Heinz
- 👤 Franz Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:05
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/24; D21H19/32; C; C08; C08L; C08L83/00; C08L83/04; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/327; D06M15/333; D06M15/37; D06M15/643; D21H19/20; C08G; C08G77/00; C08G77/04; C08G77/14; C08G77/16; C08G77/20; C08G77/70; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31855; Y10T428/3188; Y10T428/31895
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A METHOD FOR PREPARING NON-ADHESIVE, HEAT-SEALABLE FILMS AND COATINGS CHARACTERIZED IN THAT A PLANE-SURFACED BASE MEMBER IS COATED WITH AT LEAST ONE ESSENTIALLY WATERINSOLUBLE, ORGANIC, HIGH-POLYMERIC, THERMOPLASTIC HEATSEALABLE FILM FORMER SELECTED FROM THE GROUP CONSISTING OF CELLULOSE ESTERS, POLYMETHYLACRYLIC ACID ESTERS AND COPOLYMERIZATES OF THE FOREGOING, AND A NON-ADHESIVE, FILM FORMING ORGFANOSILOXANE POLYMER CONSISTING OF A MIXTURE OF AN ELASTOMER-FORMING, ESSENTIALLY DIORGANO-SUBSTITUTED SILOXANE POLYMER AND A RESINOUS ORGANOSILOXANE POLYMER HAVING AN ORGANIC SUBSTITUENT/SILICON RATIO OF FROM 0.8/1 TO 1.9/1, AND THEREAFTER THE COATED BASE MEMBER IS SUBJECTED TO HEAT CURE THE POLYMERS, THE CURED POLYMER FILM THEN BEING REMOVED FROM THE BASE MEMBER TO FORM A SELF-CARRYING FOIL.
Claim 2
Independent Claim
108 words
A METHOD FOR PREPARING NON-ADHESIVE, HEAT-SEALABLE FILMS AND COATINGS CHARACTERIZED IN THAT A PLANE-SURFACED BASE MEMBER IS COATED WITH AT LEAST ONE ESSENTIALLY WATERINSOLUBLE, ORGANIC, HIGH-POLYMERIC, THERMOPLASTIC HEATSEALABLE FILM FORMER SELECTED FROM THE GROUP CONSISTING OF CELLULOSE ESTERS, POLYMETHYLACRYLIC ACID ESTERS AND COPOLYMERIZATES OF THE FOREGOING, AND A NON-ADHESIVE, FILM FORMING ORGFANOSILOXANE POLYMER CONSISTING OF A MIXTURE OF AN ELASTOMER-FORMING, ESSENTIALLY DIORGANO-SUBSTITUTED SILOXANE POLYMER AND A RESINOUS ORGANOSILOXANE POLYMER HAVING AN ORGANIC SUBSTITUENT/SILICON RATIO OF FROM 0.8/1 TO 1.9/1, AND THEREAFTER THE COATED BASE MEMBER IS SUBJECTED TO HEAT CURE THE POLYMERS, THE CURED POLYMER FILM THEN BEING REMOVED FROM THE BASE MEMBER TO FORM A SELF-CARRYING FOIL.
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) | 1969-01-17 | 1969-07-19 | 1970-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-17 | 1973-07-19 | 1974-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-17 | 1977-07-19 | 1978-01-18 | $7700.00 | Window Closed / Lapsed |