US4425460A
Expired / Lapsed
US
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Amine terminated polyalkylene oxide neutralized sulfonated thermoplastic polymers
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1981-05-15
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Granted: 1984-01-10
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Expires: 2001-05-15
Abstract
Abstract This invention relates to amine terminated polyalkylene oxide neutralized sulfonated thermoplastic polymers which have useful physical and rheological properties.
Inventors
- 👤 Henry S. by Makowski, deceased
- 👤 Robert D. Lundberg
- 👤 Pawan K. Agarwal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:27
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/30; C08F8/32
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
61 words
A neutralized sulfonated thermoplastic polymer comprising a sulfonated thermoplastic polymer having about 5 to about 300 meq. sulfonate groups per 100 grams of said neutralized sulfonated polymer, said sulfonated groups being neutralized with an n-polyalkylene oxide substitute amine, wherein said thermoplastic polymer is derived from a polymer selected from the group consisting of polystyrene, poly-t-butyl styrene, polyvinyl toluene and poly-alpha-methyl styrene.
Claim 2
Dependent Claim
61 words
A neutralized sulfonated thermoplastic polymer comprising a sulfonated thermoplastic polymer having about 5 to about 300 meq. sulfonate groups per 100 grams of said neutralized sulfonated polymer, said sulfonated groups being neutralized with an n-polyalkylene oxide substitute amine, wherein said thermoplastic polymer is derived from a polymer selected from the group consisting of polystyrene, poly-t-butyl styrene, polyvinyl toluene and poly-alpha-methyl styrene.
Claim 3
Dependent Claim
18 words
A polymer according to claim 1 wherein said sulfonated polymer is derived from a polymer selected from polystyrene.
Claim 4
Dependent Claim
21 words
A polymer according to claim 1 or 2 wherein said n-polyalkylene oxide substituted amine is derived from a monoamine or polyamine.
Claim 5
Dependent Claim
22 words
A polymer according to claims 1 or 2 wherein the amine terminated polyalkylene oxide chains can be homo- or copolymers of alkylene.
Claim 6
Dependent Claim
23 words
A polymer according to claim 1 or 2 wherein said n-polyalkylene oxide substituted amine is an ethoxylated long chain, fatty acid derived amine.
Claim 7
Dependent Claim
18 words
A polymer according to claim 5 wherein fatty acid derived amine is a lauryl amine or stearyl amine.
References Cited (Backward Citations)
US4321340A
Cited
US4285851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-09 | 1987-07-11 | 1988-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-09 | 1991-07-11 | 1992-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-09 | 1995-07-11 | 1996-01-10 | $7700.00 | Window Closed / Lapsed |