Patent US3862102A successfully refreshed from Google Patents.
US3862102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha-olefin terminated polydiene macromolecular monomers having a substantially uniform molecular weight distribution
Assignee: Unilever Bestfoods North America
•
Filing: 1973-07-02
•
Granted: 1975-01-21
•
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 above about 1.1, wherein 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, R'' and R'''' are each either hydrogen or methyl and n is a positive integer having a value of at least about 20.
Inventors
- 👤 Ralph Milkovich
- 👤 Mutong T Chiang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:17
CPC Classifications
C; C08; C08G; C08G85/00; C08C; C08C19/00; C08C19/30; C08C19/42; C08C19/44; C08F; C08F290/00; C08F290/02; C08F290/04; C08F290/048; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/62; C08G18/6204; Y; Y10; Y10S; Y10S525/00; Y10S525/91; Y10S525/913; Y10S525/925
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
15 words
The copolymerizable macromolecular monomer of claim 1, wherein R'' is methyl and R'''' is hydrogen.
Claim 2
Dependent Claim
16 words
The copolymerizablE macromolecular monomer of claim 1, wherein R is represented by the structural formula CH3CH2(CH3)CH-.
Claim 3
Dependent Claim
32 words
The copolymerizable macromolecular monomer of claim 1, wherein n is a value such that the molecular weight of the macromolecular monomer is in the range of from about 5,000 to about 50,000.
Claim 4
Dependent Claim
32 words
The copolymerizable macromolecular monomer of claim 1, wherein n is a value such that the molecular weight of the macromolecular monomer is in the range of from about 10,000 to about 35,000.
Claim 5
Dependent Claim
32 words
The copolymerizable macromolecular monomer of claim 1, wherein n is a value such that the molecular weight of the macromolecular monomer is in the range of from about 12,000 to about 25,000.
Claim 6
Dependent Claim
14 words
The copolymerizable macromolecular monomer of claim 1, wherein R'' and R'''' are each hydrogen.
Claim 7
Dependent Claim
56 words
A copolymerizable macromolecular monomer having a substantially uniform molecular weight distribution such that its ratio of Mw/Mn is not substantially above about 1.1, wherein 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:
Claim 8
Dependent Claim
32 words
The copolymerizable macromolecular monomer of claim 8, 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.
Claim 9
Dependent Claim
32 words
The copolymerizable macromolecular monomer of claim 8, wherein n has a value such that the molecular weight of the macromolecular monomer is in the range of from about 12,000 to about 25,000.
References Cited (Backward Citations)
US3029221A
Cited
US3135716A
Cited
US3235626A
Cited
US3627837A
Cited
US3607846A
Cited
US3786116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |