US3097106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying a mar-resistant surface coating to thermoplastic sheets
Assignee: Polaroid Corp
•
Filing: 1962-12-26
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Granted: 1963-07-09
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Expires: 1982-12-26
Abstract
No abstract record available.
Inventors
- 👤 Elkan R Blout
- 👤 Harold O Buzzell
- 👤 Leonard C Farney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:04
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/16; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C08J2433/00; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A CONTINUOUS PROCESS FOR APPLYING A MAR-RESISTANT CROSS-LINKED, THERMOSET PLASTIC COATING TO A SHEET OF PLASTIC MATERIAL WITHOUT CAUSING CRAZING AND CRACKING OF SAID THERMOSET COATING, SAID PROCESS COMPRISING APPLYING A COATING SOLUTION COMPRISING A POLYMERIZABLE MONOMER OF A DIETHYLENIC DERIVATIVE OF A POLYALKYLENEGLYCOL COMPRISING 3 TO 45 ALKYLENE GROUPS, SAID ALKYLENE GROUPS COMPRISING 2 TO 3 CARBON ATOMS, AND A POLYMERIZATION CATALYST TO THE SURFACE OF SAID PLASTIC MATERIAL, HOLDING THE FILM OF SAID COATING SOLUTION, WHILE SAID SHEET OF PLASTIC MATERAIL IS ADVANCING, IN CONTACT WITH THE PERIPHERAL, OPTICALLY SMOOTH SURFACE OF A ROTATING, HEATED, CYLINDRICAL ELEMENT UNTIL SAID COATING IS POLYMERIZED TO A CROSS-LINKED THERMOSET POLYMER AND THEN REMOVING AND STRAIGHTING THE RESULTING COATED SHEET.
Claim 2
Dependent Claim
118 words
A CONTINUOUS PROCESS FOR APPLYING A MAR-RESISTANT CROSS-LINKED, THERMOSET PLASTIC COATING TO A SHEET OF PLASTIC MATERIAL WITHOUT CAUSING CRAZING AND CRACKING OF SAID THERMOSET COATING, SAID PROCESS COMPRISING APPLYING A COATING SOLUTION COMPRISING A POLYMERIZABLE MONOMER OF A DIETHYLENIC DERIVATIVE OF A POLYALKYLENEGLYCOL COMPRISING 3 TO 45 ALKYLENE GROUPS, SAID ALKYLENE GROUPS COMPRISING 2 TO 3 CARBON ATOMS, AND A POLYMERIZATION CATALYST TO THE SURFACE OF SAID PLASTIC MATERIAL, HOLDING THE FILM OF SAID COATING SOLUTION, WHILE SAID SHEET OF PLASTIC MATERAIL IS ADVANCING, IN CONTACT WITH THE PERIPHERAL, OPTICALLY SMOOTH SURFACE OF A ROTATING, HEATED, CYLINDRICAL ELEMENT UNTIL SAID COATING IS POLYMERIZED TO A CROSS-LINKED THERMOSET POLYMER AND THEN REMOVING AND STRAIGHTING THE RESULTING COATED SHEET.
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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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |