US3035966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing paper laminates, pigmented resinous composition and process of preparing same
Assignee: NL Industries Inc
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Filing: 1958-01-15
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Granted: 1962-05-22
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Expires: 1978-01-15
Abstract
No abstract record available.
Inventors
- 👤 Walter T Siuta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:58
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/38; D21H19/385; B; B32; B32B; B32B27/00; C; C08; C08K; C08K9/00; C08K9/02; C09; C09C; C09C1/00; C09C1/36; C09C1/3607; C09C1/3653; C09C1/3661; D21H17/00; D21H17/63; D21H17/67; D21H17/69; D21H27/00; D21H27/18; D21H27/22; D21H27/26; D21H27/28; C01; C01P; C01P2004/00; C01P2004/80; C01P2004/82; C01P2004/84
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
IN A PROCESS FOR PRODUCING PAPER LAMINATES WHEREIN TIO2 PIGMENT AND A RESINOUS BINDER ARE INCORPORATED IN THE PAPER STOCK FROM WHICH THE LAMINATE IS PREPARED SAID RESINOUS BINDER BEING AN AMINE FORMALDEHYDE RESIN SELECTED FROM THE GROUP CONSISTING OF MELAMINE AND UREA FORMALDEHYDE RESINS, THE IMPROVEMENT COMPRISING: UNCORPORATING IN SAID PAPER STOCK A CALCINED TIO2 PIGMENT OF THE RUTILE MODIFICATION CHARACTERIZED BY A PARTIALLY DEHYDRATED TIO2-FREE, ALUMINA-SILICA COATING WHEREIN THE MOLE RATIO OF ALUMINA AND SILICA, PRIOR TO PARTIAL DEHYDRATION IS IN THE RANGE OF FROM 1:1 TO 2:1 AND THE AMOUNT OF ALUMINA AND SILICA IS FROM 2-15% BY WEIGHT OF THE TIO2.
References Cited (Backward Citations)
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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) | 1965-05-21 | 1965-11-20 | 1966-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-21 | 1969-11-20 | 1970-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-21 | 1973-11-20 | 1974-05-22 | $7700.00 | Window Closed / Lapsed |