US3846393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glycol terminated macromolelcular monomers having a substantially uniform molecular weight distribution
Assignee: Unilever Bestfoods North America
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Filing: 1973-07-02
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Granted: 1974-11-05
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Expires: 1993-07-02
Abstract
Abstract This application discloses a copolymerizable macromolecular monomer having a substantially uniform molecular weight distribution such that its ratio of Mw/Mn is not substantially about about 1.1, where Mw is the weight average molecular weight of the macromolecular monomer, and Mn is the number average molecular weight of the macromolecular monomer, said macromolecular monomer being represented by the structural formula: WHEREIN R is lower alkyl and R'' is either hydrogen or methyl, and n is a positive integer having a value of at least about 20.
Inventors
- 👤 R Milkovich
- 👤 M Chiang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:34
CPC Classifications
C; C08; C08G; C08G85/00; C08C; C08C19/00; C08C19/30; C08C19/42; C08C19/44; C08F; C08F290/00; C08F290/02; C08F290/04; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/62; C08G18/6204
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
52 words
A COPOLYMEERIZABLE MARCOMOLECULAR MONOMER HAVING A SUBSTANTIALLY UNIFORM WEIGHT DISTRIBUTION SUCH THAT ITS RATIO OF MW/MN IS NOT SUBSTANTIALLY ABOVE ABOUT 1.1, SUBSTANTIALLY UNIFORM MOLECULAR WEIGHT DISTRIBUTION SUCH THAT MACROMOLECULAR MONOMER, AND MN IS THE NUMBER AVERAGE MOLECULAR WEIGHT OF THE MACROMOLECULAR MONOMER, SAID MACROMOLECULAR MONOMER BEING REPRESENTED BY THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
52 words
A COPOLYMEERIZABLE MARCOMOLECULAR MONOMER HAVING A SUBSTANTIALLY UNIFORM WEIGHT DISTRIBUTION SUCH THAT ITS RATIO OF MW/MN IS NOT SUBSTANTIALLY ABOVE ABOUT 1.1, SUBSTANTIALLY UNIFORM MOLECULAR WEIGHT DISTRIBUTION SUCH THAT MACROMOLECULAR MONOMER, AND MN IS THE NUMBER AVERAGE MOLECULAR WEIGHT OF THE MACROMOLECULAR MONOMER, SAID MACROMOLECULAR MONOMER BEING REPRESENTED BY THE STRUCTURAL FORMULA:
Claim 3
Dependent Claim
11 words
The copolymerizable macromolecular monomer of claim 1, wherein R'' is hydrogen.
Claim 4
Dependent Claim
32 words
The copolymerizable macromolecular monomer of claim 1, wherein n has a value such that the molecular weight of the macromolecular monomer is in the range of from about 10,000 to about 35,000.
References Cited (Backward Citations)
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US3639519A
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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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |