US4127546A
Expired / Lapsed
US
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Plasticization of neutralized sulfonated elastomers with rosin salts
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1977-11-29
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Granted: 1978-11-28
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Expires: 1997-11-29
Abstract
Abstract {PG,1 This invention relates to an improved elastomeric composition of metal neutralized sulfonated polymers which are plasticized with a preferential plasticizer at a concentration level of at least 1 part by weight based on 100 parts by weight of the metal neutralized EPDM terpolymer, wherein the preferential plasticizer is a metal rosin salt. The resultant compositions have improved physical properties and can be processed on conventional plastic fabrication equipment.
Inventors
- 👤 Robert D. Lundberg
- 👤 Robert R. Phillips
- 👤 Henry S. Makowski
- 👤 Douglas Brenner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:01
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/26; C08L23/32; Y; Y10; Y10S; Y10S260/00; Y10S260/31
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
55 words
An elastomeric composition including (a) a neutralized sulfonated polymer having at least about 15 meq metal sulfonate groups per 100 grams of said sulfonated polymer; and (b) at least about 1 part by weight of a preferential plasticizer based on 100 parts of said neutralized sulfonated polymer, said preferential plasticizer being a metal rosin salt.
Claim 2
Dependent Claim
55 words
An elastomeric composition including (a) a neutralized sulfonated polymer having at least about 15 meq metal sulfonate groups per 100 grams of said sulfonated polymer; and (b) at least about 1 part by weight of a preferential plasticizer based on 100 parts of said neutralized sulfonated polymer, said preferential plasticizer being a metal rosin salt.
Claim 3
Dependent Claim
28 words
A composition according to claim 1, wherein said neutralized sulfonated polymer is formed from an elastomeric polymer selected from the group comprising 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 non-conjugated diene.
Claim 5
Dependent Claim
27 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
12 words
A composition according to claim 4, wherein said non-conjugated diene is 5-ethylidene-2-norbornene.
Claim 7
Dependent Claim
30 words
A composition according to claim 1, wherein a concentration of said preferential plasticizer is about 1 to about 50 parts by weight per 100 of said metal neutralized sulfonated polymer.
Claim 8
Dependent Claim
30 words
A composition according to claim 1, wherein a metal cation of said metal sulfonate groups is selected from the group consisting of sodium, potassium, barium, magnesium, aluminum, calcium and zinc.
Claim 9
Dependent Claim
34 words
A composition according to claim 1, wherein a metal ion of said metal rosin salt is selected from the group consisting of Groups IA, IIA, IB and IIB of the Periodic Table of Elements.
Claim 10
Dependent Claim
22 words
A composition according to claim 1, wherein at least 90% of the cation contained in the said metal rosin salt is zinc.
Claim 11
Dependent Claim
28 words
A composition according to claim 1, further including a filler wherein said filler is selected from the group consisting of clay, talc, and calcium carbonate, and mixtures thereof.
Claim 12
Dependent Claim
31 words
A composition according to claim 10, further including a non-polar process oil, wherein said non-polar process oil is selected from the group consisting of paraffinics, naphthenics, and aromatics and mixtures thereof.
Claim 13
Dependent Claim
22 words
A composition according to claim 11, wherein said non-polar process oil is paraffinic having an Mn of about 400 to about 1000.
Claim 14
Dependent Claim
12 words
A composition according to claim 11, further including a crystalline polyolefinic thermoplastic.
Claim 15
Dependent Claim
24 words
A composition according to claim 11, wherein said polyolefinic thermoplastic is added at a concentration level of less than about 100 parts per hundred.
Claim 16
Dependent Claim
18 words
A composition according to claim 14, wherein said polyolefinic thermoplastic has an Mn of about at least 5000.
Claim 17
Dependent Claim
23 words
A composition according to claim 11, further including a metallic oxide at a concentration level of less than about 25 parts per hundred.
Claim 18
Dependent Claim
13 words
A composition according to claim 16, wherein said metal oxide is zinc oxide.
Claim 19
Dependent Claim
9 words
A composition of claim 11, further including a lubricant.
Claim 20
Dependent Claim
34 words
A composition of claim 18, wherein said lubricant is a crystalline hydrocarbon wax having a melting point of about 135° F. to about 220° F. and an Mn of about 1000 to about 4000.
Claim 21
Dependent Claim
23 words
A composition according to claim 11, further including a reinforcing filler at a concentration level of about less than 50 parts per hundred.
Claim 22
Dependent Claim
11 words
A composition according to claim 11, further including an amorphous polypropylene.
Claim 23
Dependent Claim
31 words
A composition according to claim 1, wherein a concentration of said preferential plasticizer is about 3 to about 30 parts by weight per 100 parts of said metal neutralized sulfonated polymer.
Claim 24
Dependent Claim
31 words
A composition according to claim 1, wherein a concentration of said preferential plasticizer is about 5 to about 20 parts by weight per 100 parts of said metal neutralized sulfonated polymer.
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) | 1981-11-27 | 1982-05-29 | 1982-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-11-27 | 1986-05-29 | 1986-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-11-27 | 1990-05-29 | 1990-11-28 | $7700.00 | Window Closed / Lapsed |