US3053646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding and polishing compositions and method of making same
Assignee: Dow Chemical Co
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Filing: 1960-07-15
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Granted: 1962-09-11
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Expires: 1980-07-15
Abstract
No abstract record available.
Inventors
- 👤 Harold H Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:23
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/14; C09K3/1454; C09K3/1463
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A GRINDING AND POLISHING COMPOSITION COMPRISING A SUSPENSION OF SOLID ABRASIVE PARTICLES IN A FLOWABLE MEDIUM CONSISTING ESSENTIALLY OF A LIQUID SELECTED FROM THE GROUP CONSISTING OF WATER, ALIPHATIC POLYHDRIC ALCOHOLS AND MIXTURES THEREOF; THICKENED WITH (1) A SMALL AMOUNT OF AN ALKALI METAL SALT OF A WATER-SWELLABLE, SULPHONATED ALKENYL AROMATIC RESIN IN WHICH THERE IS PRESENT A MINOR PROPORTION OF AN ANTI-DISPRESIVE, WATER-SOLUBLE SULPHONATED ALKENYL AROMATIC RESIN AND (2) A SUFFICIENT AMOUNT OF A CELLULOSE ETHER SELECTED FROM THE GROUP CONSISTING OF METHYL CELLULOSE, HYDROXYETHYL CELLULOSE,HYDROXYPROPYLMETHYL CELLULOSE, CARBOXYMETHLY CELLUSLOSE ETHERS DISPERSIBLE IN THE SYSTEM, WHEREBY THE SOLID ABRASIVE PARTICLES ARE CAUSED TO REMAIN SUSPENDED FOR AN EXTENDED PERIOD OF TIME.
Claim 2
Dependent Claim
111 words
A GRINDING AND POLISHING COMPOSITION COMPRISING A SUSPENSION OF SOLID ABRASIVE PARTICLES IN A FLOWABLE MEDIUM CONSISTING ESSENTIALLY OF A LIQUID SELECTED FROM THE GROUP CONSISTING OF WATER, ALIPHATIC POLYHDRIC ALCOHOLS AND MIXTURES THEREOF; THICKENED WITH (1) A SMALL AMOUNT OF AN ALKALI METAL SALT OF A WATER-SWELLABLE, SULPHONATED ALKENYL AROMATIC RESIN IN WHICH THERE IS PRESENT A MINOR PROPORTION OF AN ANTI-DISPRESIVE, WATER-SOLUBLE SULPHONATED ALKENYL AROMATIC RESIN AND (2) A SUFFICIENT AMOUNT OF A CELLULOSE ETHER SELECTED FROM THE GROUP CONSISTING OF METHYL CELLULOSE, HYDROXYETHYL CELLULOSE,HYDROXYPROPYLMETHYL CELLULOSE, CARBOXYMETHLY CELLUSLOSE ETHERS DISPERSIBLE IN THE SYSTEM, WHEREBY THE SOLID ABRASIVE PARTICLES ARE CAUSED TO REMAIN SUSPENDED FOR AN EXTENDED PERIOD OF TIME.
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) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |