US4131587A
Expired / Lapsed
US
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Plasticization of neutralized sulfonated elastomeric polymer
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1977-11-29
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Granted: 1978-12-26
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Expires: 1997-11-29
Abstract
Abstract This invention relates to an improved elastomeric composition of metal and ammonium neutralized sulfonated elastomeric polymers which are preferentially plasticized with a critically selected non volatile amine at a minimum critical concentration level of at least 8 parts by weight based on 100 parts by weight of the metal neutralized elastomeric polymer, wherein the plasticized compositions have improved physical or rheological properties. These elastomeric compounds can be processed on conventional plastic fabrication equipment.
Inventors
- 👤 Douglas Brenner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:00
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/18; Y; Y10; Y10S; Y10S260/00; Y10S260/31
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
91 words
An elastomeric composition including: (a) a neutralized sulfonated elastomeric polymer having about 15 to 60 meq metal sulfonate groups per 100 grams of said sulfonated elastomeric polymer; and (b) at least about 10 parts by weight of an organic amine based on 100 parts of said neutralized sulfonated elastomeric polymer, wherein said amine is selected from the group consisting of mono and di-substituted amino naphthalene compounds, amino alkyl naphthalene compounds, and saturated n-alkyl amines and mixtures thereof, wherein the alkyl groups of said n-alkylamine has at least about 20 carbon atoms.
Claim 2
Dependent Claim
91 words
An elastomeric composition including: (a) a neutralized sulfonated elastomeric polymer having about 15 to 60 meq metal sulfonate groups per 100 grams of said sulfonated elastomeric polymer; and (b) at least about 10 parts by weight of an organic amine based on 100 parts of said neutralized sulfonated elastomeric polymer, wherein said amine is selected from the group consisting of mono and di-substituted amino naphthalene compounds, amino alkyl naphthalene compounds, and saturated n-alkyl amines and mixtures thereof, wherein the alkyl groups of said n-alkylamine has at least about 20 carbon atoms.
Claim 3
Dependent Claim
30 words
A composition according to claim 1, wherein said neutralized sulfonated elastomeric polymer is formed from an elastomeric polymer selected from the group consisting of Butyl rubber and an EPDM terpolymer.
Claim 4
Dependent Claim
45 words
A composition according to claim 2, wherein said EPDM terpolymer consists essentially of about 40 to about 80 wt. % of ethylene, of about 10 to about 53 wt. % of propylene and of about 1 to about 10 wt. % of a nonconjugated diene.
Claim 5
Dependent Claim
28 words
A composition according to claim 3, wherein said non conjugated diene is selected from the group consisting of 1,4-hexadiene, dicyclopentadiene, alkylidene substituted norbornenes, alkenyl substituted norbornenes and tetrahydroindene.
Claim 6
Dependent Claim
13 words
A composition according to claim 4, wherein said non conjugated diene is 5-ethylidene-2-norbornene.
Claim 7
Dependent Claim
39 words
A composition according to claim 1, wherein said metal cation of said metal neutralized sulfonated polymer is selected from the group consisting of Groups I-A, II-A, I-B and II-B, lead, antimony and iron of the Periodic Table of Elements.
Claim 8
Dependent Claim
16 words
A composition according to claim 1, wherein said amine is 1,5-diamino naphthalene, 8-amino-2-naphthol, arachidylamine and behenylamine.
Claim 9
Dependent Claim
19 words
A composition according to claim 1, wherein said amine has a melting point of at least about 70° C.
Claim 10
Dependent Claim
12 words
A composition according to claim 1, wherein said metal cation is zinc.
References Cited (Backward Citations)
US3847854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-25 | 1982-06-26 | 1982-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-25 | 1986-06-26 | 1986-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-25 | 1990-06-26 | 1990-12-26 | $7700.00 | Window Closed / Lapsed |