US4330447A
Expired / Lapsed
US
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Thermoplastic elastomeric compositions having improved flow
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1981-01-05
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Granted: 1982-05-18
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Expires: 2001-01-05
Abstract
Abstract This invention relates to a blend composition of a metal neutralized sulfonated polymer, a preferential plasticizer and polydialkylsiloxane, wherein the blend composition has improved melt flow and a lower coefficient of friction while substantially maintaining physical properties as compared to the blend of either the metal neutralized sulfonated polymer and preferential plasticizer or the metal neutralized sulfonated polymer itself.
Inventors
- 👤 Robert D. Lundberg
- 👤 Robert R. Phillips
- 👤 Ilan Duvdevani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:29
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/26; C08L23/32
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
85 words
A thermoplastic elastomeric composition having improved flow comprising: (a) a neutralized sulfonated polymer; derived from an elastomeric polymer selected from the group consisting of EPDM terpolymers and Butyl Rubber; (b) about 1 to about 15 parts by weight of preferential plasticizer selected from the group consisting of carboxylic acids having about 5 to about 30 carbon atoms and metallic salts of said carboxylic acids; (c) about 0.1 to about 30 parts by weight of polydimethylsiloxane per 100 parts by weight of the neutralized sulfonated polymer.
Claim 2
Dependent Claim
85 words
A thermoplastic elastomeric composition having improved flow comprising: (a) a neutralized sulfonated polymer; derived from an elastomeric polymer selected from the group consisting of EPDM terpolymers and Butyl Rubber; (b) about 1 to about 15 parts by weight of preferential plasticizer selected from the group consisting of carboxylic acids having about 5 to about 30 carbon atoms and metallic salts of said carboxylic acids; (c) about 0.1 to about 30 parts by weight of polydimethylsiloxane per 100 parts by weight of the neutralized sulfonated polymer.
Claim 3
Dependent Claim
50 words
A polymeric composition according to claim 1, wherein a metal atom of said metallic salt of such carboxylic acid having about 5 to about 30 carbon atoms is selected from the group consisting of iron, aluminum, antimony, and Groups I-A, II-A, I-B, and II-B of the Periodic Table of Elements.
Claim 4
Dependent Claim
59 words
A polymeric composition according to claim 1, wherein said neutralized sulfonated polymer has about 10 to about 100 meq. of neutralized sulfonate groups/100 grams of said neutralized sulfonate polymer, said neutralized sulfonate groups have a counterion selected from the group consisting of ammonium, iron, aluminum, antimony and Groups I-A, II-A, I-B and II-B of the Periodic Table of Elements.
Claim 5
Dependent Claim
32 words
An elastomeric composition according to claim 1, wherein said neutralized elastomeric polymer is derived from an EPDM terpolymer having a Mooney viscosity (ML 1+8, 212° F.) of about 5 to about 60.
Claim 6
Dependent Claim
16 words
A polymeric composition according to claims 1 or 4, wherein said preferential plasticizer is zinc stearate.
Claim 7
Dependent Claim
47 words
A polymeric composition according to claim 1, further including up to about 350 parts by weight of a filler per 100 parts by weight of said neutralized sulfonated polymer, wherein said filler is selected from the group consisting of talcs, clays and calcium carbonates and mixtures thereof.
Claim 8
Dependent Claim
47 words
A polymeric composition according to claim 5, further including up to about 350 parts by weight of a filler per 100 parts by weight of said neutralized sulfonate polymer, wherein said filler is selected from the group consisting of talcs, clays and calcium carbonates and mixtures thereof.
Claim 9
Dependent Claim
40 words
A polymeric composition according to claim 1, further including up to about 250 parts by weight of a non-polar process oil having less than 2.0 wt. % polar type compounds per 100 parts by weight of the neutralized sulfonated polymer.
Claim 10
Dependent Claim
40 words
A polymeric composition according to claim 6, further including up to about 250 parts by weight of a non-polar process oil having less than 2.0 wt. % polar type compounds per 100 parts by weight of the neutralized sulfonated polymer.
Claim 11
Dependent Claim
40 words
A polymeric composition according to claim 7, further including up to about 250 parts by weight of a non-polar process oil having less than 2.0 wt. % polar type compounds per 100 parts by weight of the neutralized sulfonated polymer.
Claim 12
Dependent Claim
30 words
A polymeric composition according to claim 9, further including up to about 150 parts by weight of a reinforcing filler per 100 parts by weight of the neutralized sulfonated polymer.
Claim 13
Dependent Claim
30 words
A polymeric composition according to claims 1 or 6, further including up to about 30 parts by weight of a wax per 100 parts by weight of neutralized sulfonated polymer.
Claim 14
Dependent Claim
49 words
A composition according to claims 1, 6 or 7, wherein the sulfonate groups of the neutralized sulfonated polymer are neutralized with a zinc counterion and said neutralized sulfonated polymer is derived from an EPDM terpolymer having a Mooney viscosity (ML 1+8, 212° F.) of about 5 to about 60.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-17 | 1985-11-16 | 1986-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-17 | 1989-11-16 | 1990-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-17 | 1993-11-16 | 1994-05-18 | $7700.00 | Window Closed / Lapsed |