US3171718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delaminated domestic sedimentary clay products and method of preparation thereof
Assignee: Freeport Kaolin Co
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Filing: 1962-02-16
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Granted: 1965-03-02
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Expires: 1982-02-16
Abstract
No abstract record available.
Inventors
- 👤 Fred A Gunn
- 👤 Horton H Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:00
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/40; C09C1/42; B; B28; B28C; B28C1/00; B28C1/003; C01; C01P; C01P2004/00; C01P2004/01; C01P2004/03; C01P2004/20; C01P2004/51; C01P2004/54; C01P2004/60; C01P2004/61; C01P2004/62; C01P2006/00; C01P2006/21; C01P2006/60
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
171 words
THE METHOD OF PRODUCING A DOMESTIC SEDIMENTARY CLAY PRODUCT OF A WHITE COLOR AND OF A G.E. BRIGHTNESS OF AT LEAST 90, WHICH COMPRISES SUBJECTING GEORGIA SEDIMENTARY KAOLIN CLAY FRACTIONS CONTAINING A SUBSTANTIAL AMOUNT OF AGGREGATES OF ABOVE 2 MICRONS IN SIZE TO DELAMINATION BY RAPID AGITATION OF AN AQUEOUS SLURRY OF THE CLAY WITH FINE, NON-ABRASIVE GRINDING MEDIA, WITH RESULTING FINE MILLING MECHANICAL ACTION INCLUDING (1) A MILD, VISCOUS, SHEAR MILLING DUE TO AGITATION OF THE ADMIXED FINE MILLING MEDIA, WATER AND CLAY, (2) A MILD PERCUSSIVE MILLING DUE TO A MULTIPLICITY OF LOW INERTIA IMPACTS FROM THE COLLISIONS OF THE FINE MILLING MEDIA WITH ITSELF AND WITH THE CLAY, AND (3) A MILD FRICTIONAL MILLING BY THE COMBINATION RUBBING ACTION OF THE FINE MEDIA, CONTINUING THE DELAMINATION TO EFFECT SUBSTANTIALLY COMPLETE DELAMINATION OF AGGREGATES AND TO PRODUCE A DELAMINATED CLAY PRODUCT CHARACTERIZED BY SUBSTANTIAL FREEDOM FROM AGGREGATES AND HAVING A DISTINCT WHITE COLOR AND A G.E. BRIGHTNESS, AFTER BLEACHING, OF AT LEAST 90, AND BLEACHING THE RESULTING CLAY PRODUCT.
Claim 2
Independent Claim
171 words
THE METHOD OF PRODUCING A DOMESTIC SEDIMENTARY CLAY PRODUCT OF A WHITE COLOR AND OF A G.E. BRIGHTNESS OF AT LEAST 90, WHICH COMPRISES SUBJECTING GEORGIA SEDIMENTARY KAOLIN CLAY FRACTIONS CONTAINING A SUBSTANTIAL AMOUNT OF AGGREGATES OF ABOVE 2 MICRONS IN SIZE TO DELAMINATION BY RAPID AGITATION OF AN AQUEOUS SLURRY OF THE CLAY WITH FINE, NON-ABRASIVE GRINDING MEDIA, WITH RESULTING FINE MILLING MECHANICAL ACTION INCLUDING (1) A MILD, VISCOUS, SHEAR MILLING DUE TO AGITATION OF THE ADMIXED FINE MILLING MEDIA, WATER AND CLAY, (2) A MILD PERCUSSIVE MILLING DUE TO A MULTIPLICITY OF LOW INERTIA IMPACTS FROM THE COLLISIONS OF THE FINE MILLING MEDIA WITH ITSELF AND WITH THE CLAY, AND (3) A MILD FRICTIONAL MILLING BY THE COMBINATION RUBBING ACTION OF THE FINE MEDIA, CONTINUING THE DELAMINATION TO EFFECT SUBSTANTIALLY COMPLETE DELAMINATION OF AGGREGATES AND TO PRODUCE A DELAMINATED CLAY PRODUCT CHARACTERIZED BY SUBSTANTIAL FREEDOM FROM AGGREGATES AND HAVING A DISTINCT WHITE COLOR AND A G.E. BRIGHTNESS, AFTER BLEACHING, OF AT LEAST 90, AND BLEACHING THE RESULTING CLAY PRODUCT.
Claim 3
Dependent Claim
211 words
A NEW DELAMINATED CLAY PRODUCT PRODUCED BY DELAMINATION OF A DOMESTIC SEDIMENTARY KAOLIN CLAY FRACTION CONTAINING SUBSTANTIAL AMOUNTS OF AGGREGATES OF MORE THAN TWO MICRONS IN SIZE, SAID CLAY PRODUCT HAVING A DISTINCT BLUE-WHITE COLOR COMPARABLE WITH THAT OF IMPORTED ENGLISH CLAYS, SAID PRODUCT BEING SUBSTANTIALLY FREE OF UNDELAMINATED AGGREGATES AND BOOKLETS AND BEING COMPOSED SUBSTANTIALLY OF INDIVIDUAL PLATELETS, AND CONTAINING A SUFFICIENT AMOUNT OF PLATELETS OF MORE THAN TWO MICRONS IN SIZE SO AS TO PREDOMINATE ON A WEIGHT BASIS, THE PLATELETS IN EXCESS OF TWO MICRONS IN SIZE OF SAID PRODUCT HAVING A RATIO OF DIAMETER TO THICKNESS AS DETERMINED BY THE ELECTRON MICROGRAPH, WHICH IS IN EXCESS OF 6 AND IN WHICH THE RATIO OF DIAMETER TO THICKNESS INCREASES AS THE DIAMETER OF THE PLATLETS INCREASE, AND GIVING A COATED PAPER WITH AN IMPROVED UNCALENDERED GLOSS AT LEAST SEVERAL POINTS HIGHER ON THE BAUSCH & LOMB GLOSSMETER THAN THE UNCALENDERED GLOSS OF CONVENTIONAL DOMESTIC COATING CLAYS OF COMPARABLE SIZE DISTRIBUTION, SAID CLAY PRODUCT HAVING AN ADHESIVE DEMAND NO GREATER THAN THAT OF CONVENTIONAL DOMESTIC COATING CLAYS OF COMPARABLE PARTICLE SIZE DISTRIBUTION, AND SAID CLAY PRODUCT ON CALCINATION GIVING A CALCINED PRODUCT HAVING A MATERIALLY INCREASED G.E. BRIGHTNESS AND A MATERIALLY LOWER ABRASION INDEX THAN CONVENTIONAL CALCINE DOMESTIC CLAYS.
Claim 4
Dependent Claim
211 words
A NEW DELAMINATED CLAY PRODUCT PRODUCED BY DELAMINATION OF A DOMESTIC SEDIMENTARY KAOLIN CLAY FRACTION CONTAINING SUBSTANTIAL AMOUNTS OF AGGREGATES OF MORE THAN TWO MICRONS IN SIZE, SAID CLAY PRODUCT HAVING A DISTINCT BLUE-WHITE COLOR COMPARABLE WITH THAT OF IMPORTED ENGLISH CLAYS, SAID PRODUCT BEING SUBSTANTIALLY FREE OF UNDELAMINATED AGGREGATES AND BOOKLETS AND BEING COMPOSED SUBSTANTIALLY OF INDIVIDUAL PLATELETS, AND CONTAINING A SUFFICIENT AMOUNT OF PLATELETS OF MORE THAN TWO MICRONS IN SIZE SO AS TO PREDOMINATE ON A WEIGHT BASIS, THE PLATELETS IN EXCESS OF TWO MICRONS IN SIZE OF SAID PRODUCT HAVING A RATIO OF DIAMETER TO THICKNESS AS DETERMINED BY THE ELECTRON MICROGRAPH, WHICH IS IN EXCESS OF 6 AND IN WHICH THE RATIO OF DIAMETER TO THICKNESS INCREASES AS THE DIAMETER OF THE PLATLETS INCREASE, AND GIVING A COATED PAPER WITH AN IMPROVED UNCALENDERED GLOSS AT LEAST SEVERAL POINTS HIGHER ON THE BAUSCH & LOMB GLOSSMETER THAN THE UNCALENDERED GLOSS OF CONVENTIONAL DOMESTIC COATING CLAYS OF COMPARABLE SIZE DISTRIBUTION, SAID CLAY PRODUCT HAVING AN ADHESIVE DEMAND NO GREATER THAN THAT OF CONVENTIONAL DOMESTIC COATING CLAYS OF COMPARABLE PARTICLE SIZE DISTRIBUTION, AND SAID CLAY PRODUCT ON CALCINATION GIVING A CALCINED PRODUCT HAVING A MATERIALLY INCREASED G.E. BRIGHTNESS AND A MATERIALLY LOWER ABRASION INDEX THAN CONVENTIONAL CALCINE DOMESTIC CLAYS.
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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) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |