US3976601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water soluble lubricant for tabletting compositions
Assignee: Johnson and Johnson
•
Filing: 1974-06-24
•
Granted: 1976-08-24
•
Expires: 1994-06-24
Abstract
Abstract An admixture of spray dried magnesium lauryl sulfate powder and micronized polyethylene glycol polymers has been found to be an excellent lubricant system in tabletting processes for making water-soluble, effervescent tablets such as tabletted denture cleansers, antacids, analgesics and the like. Such lubricant systems are particularly useful when used in the making of an effervescent denture cleanser tablet.
Inventors
- 👤 Norman A. Levin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:26
CPC Classifications
A; A61; A61Q; A61Q11/00; A61Q11/02; A61K; A61K8/00; A61K8/02; A61K8/0216; A61K8/18; A61K8/30; A61K8/46; A61K8/463; A61K8/72; A61K8/84; A61K8/86; A61K9/00; A61K9/0002; A61K9/0007; A61K9/20; A61K9/2004; A61K9/2022; A61K9/2031; C; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/14; C11D1/146; C11D17/00; C11D17/0047; C11D17/0065; C11D17/0073; C11D3/00; C11D3/16; C11D3/37; C11D3/3703; C11D3/3707; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412; C10; C10M; C10M2201/00; C10M2201/02; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2219/00; C10M2219/04; C10M2219/042; C10N; C10N2040/00; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
47 words
A water-soluble lubricant admixture for use in tablet compositions consisting essentially of magnesium lauryl sulfate powder having an average particle size of from about 12 to about 20 microns and a micronized polyethylene glycol polymer having an average molecular weight of from about 6,000 to about 20,000.
Claim 2
Dependent Claim
47 words
A water-soluble lubricant admixture for use in tablet compositions consisting essentially of magnesium lauryl sulfate powder having an average particle size of from about 12 to about 20 microns and a micronized polyethylene glycol polymer having an average molecular weight of from about 6,000 to about 20,000.
Claim 3
Dependent Claim
36 words
The water-soluble lubricant admixture of claim 1 wherein the magnesium lauryl sulfate powder has an average particle size of about 16 microns and the micronized polyethylene glycol polymer has an average molecular weight of about 6,000.
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) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |