US4671823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sucrose encrusted methyl cellulose particles for use in bulk laxative compositions
Assignee: Aventis Pharmaceuticals Inc
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Filing: 1986-08-26
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Granted: 1987-06-09
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Expires: 2006-08-26
Abstract
Abstract The present invention relates to an improved process for preparing sucrose encrusted methylcellulose particles which readily disperse in cold aqueous liquids. These encrusted particles are suitable for use in bulk laxative compositions. In the improved process, hot sucrose syrup is mixed with powdered methylcellulose, dried and milled.
Inventors
- 👤 Dhiren N. Shah
- 👤 Gregory V. Hammer
- 👤 Jack Domet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:06
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/48; A61K9/50; A61K9/5005; A61K9/5015; A61K9/14; A61K9/16; A61K9/1605; A61K9/1617; A61K9/1623; A61P; A61P1/00; A61P1/10
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
36 words
A sucrose encrusted methylcellulose particle suitable for use in a bulk laxative composition when prepared by mixing hot sucrose syrup with powdered methylcellulose until an evenly moist product is formed which is then dried and milled.
Claim 2
Dependent Claim
36 words
A sucrose encrusted methylcellulose particle suitable for use in a bulk laxative composition when prepared by mixing hot sucrose syrup with powdered methylcellulose until an evenly moist product is formed which is then dried and milled.
Claim 3
Dependent Claim
56 words
A sucrose encrusted methylcellulose particle suitable for use in a bulk laxative composition when prepared by the process of claim 1 wherein the amount of hot sucrose syrup and the concentration of hot sucrose syrup is selected to provide for a sucrose encrusted methyl cellulose particle consisting of from 20 to 90 percent by weight sucrose.
Claim 4
Dependent Claim
53 words
A sucrose encrusted methylcellulose particle suitable for use in a bulk laxative composition when prepared by the process of claim 1 wherein the amount of hot sucrose syrup and the concentration of the hot sucrose syrup is selected to provided for a sucrose encrusted methylcellulose particle consisting of 33 percent by weight sucrose.
Claim 5
Dependent Claim
35 words
A sucrose encrusted methylcellulose particle suitable for use in a bulk laxative composition when prepared by the process of claim 1 wherein the temperature of the hot sucrose syrup is from 40° to 75° C.
Claim 6
Dependent Claim
32 words
A sucrose encrusted methylcellulose particle suitable for use in a bulk laxative composition when prepared by the process of claim 1 wherein the temperature of the hot sucrose syrup is 60° C.
Claim 7
Dependent Claim
35 words
A sucrose encrusted methylcellulose particle suitable for use in bulk laxative composition when prepared by the process of claim 1 wherein the concentration of hot sucrose syrup is at least 50 percent by weight sucrose.
Claim 8
Dependent Claim
34 words
A sucrose encrusted methylcellulose particle suitable for use in a bulk laxative composition when prepared by the process of claim 1 wherein the concentration of hot sucrose syrup is 60 percent by weight sucrose.
Claim 9
Dependent Claim
43 words
A sucrose encrusted methylcellulose particle suitable for use in a bulk laxative composition when prepared by the process of claim 1 wherein the hot sucrose syrup consists of 60 percent sucrose and wherein the temperature of the hot sucrose syrup is 60° C.
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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) | 1990-06-08 | 1990-12-08 | 1991-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-08 | 1994-12-08 | 1995-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-08 | 1998-12-08 | 1999-06-09 | $7700.00 | Window Closed / Lapsed |