US4014847A
Expired / Lapsed
US
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Ionic polymer plasticized with preferential plasticizers
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1974-07-11
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Granted: 1977-03-29
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Expires: 1994-07-11
Abstract
Abstract Ionically crosslinked polymers are plasticized by blending the ionic compositions with a plasticizer which is normally liquid and non-volatile, the plasticizer compounds having a solubility parameter of at least 9.0. The plasticizers are preferential plasticizers for their ionic domains and do not ordinarily plasticize the polymeric backbone.
Inventors
- 👤 Robert D. Lundberg
- 👤 Henry S. Makowski
- 👤 Lowell Westerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:50
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0016
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
74 words
A composition of matter comprising an ionically crosslinked polymer in combination with from about 0.2 to 50 parts per hundred parts ionically crosslinked polymer of a preferential plasticizer wherein said plasticizer is a normally liquid, non-volatile compound having a solubility parameter of at least nine, a boiling point of at least 150°C, and containing functional groups exhibiting a bond moment of at least 0.6 Debye, wherein the ionically crosslinked polymer is a sulfonated polymer.
Claim 2
Dependent Claim
74 words
A composition of matter comprising an ionically crosslinked polymer in combination with from about 0.2 to 50 parts per hundred parts ionically crosslinked polymer of a preferential plasticizer wherein said plasticizer is a normally liquid, non-volatile compound having a solubility parameter of at least nine, a boiling point of at least 150°C, and containing functional groups exhibiting a bond moment of at least 0.6 Debye, wherein the ionically crosslinked polymer is a sulfonated polymer.
Claim 3
Dependent Claim
12 words
The composition of claim 1 wherein the sulfonated polymer is an elastomer.
Claim 4
Dependent Claim
18 words
The composition of claim 2 wherein the elastomer is butyl rubber, EPDM, polybutadiene, polyisoprene, SBR or natural rubber.
Claim 5
Dependent Claim
13 words
The composition of claim 1 wherein the sulfonated polymer is a thermoplastic polymer.
Claim 6
Dependent Claim
19 words
The composition of claim 4 wherein the thermoplastic polymer is polystyrene, poly-t-butylstyrene or a copolymer of styrene and t-butylstyrene.
Claim 7
Dependent Claim
24 words
The composition of claim 1 wherein said preferential plasticizer is glycerol, ethylene glycol, butanediol, dibutyl phthalate, dipropyl phthalate, hexamethyl phosphoramide or N-ethyl toluene sulfonamide.
Claim 8
Dependent Claim
21 words
The composition of claim 1 wherein the polymer is a sulfonated EPDM and the plasticizer is glycerol or N-ethyl toluene sulfonamide.
Claim 9
Dependent Claim
20 words
The composition of claim 1 wherein the polymer is a sulfonated polystyrene and the plasticizer is glycerol or N-ethyltoluene sulfonamide.
Claim 10
Independent Claim
78 words
A method for improving the processability of an ionically crosslinked polymer which comprises dispersing in said polymer from about 0.2 to 50 parts per hundred parts ionically crosslinked polymer of a preferential plasticizer wherein said plasticizer is a normally liquid non-volatile compound having a solubility parameter of at least 9, a boiling point at least 150°C, and containing functional groups exhibiting a bond moment of at least 0.6 Debye, wherein the ionically crosslinked polymer is a sulfonated polymer.
Claim 11
Independent Claim
78 words
A method for improving the processability of an ionically crosslinked polymer which comprises dispersing in said polymer from about 0.2 to 50 parts per hundred parts ionically crosslinked polymer of a preferential plasticizer wherein said plasticizer is a normally liquid non-volatile compound having a solubility parameter of at least 9, a boiling point at least 150°C, and containing functional groups exhibiting a bond moment of at least 0.6 Debye, wherein the ionically crosslinked polymer is a sulfonated polymer.
Claim 12
Dependent Claim
14 words
The method of claim 9 wherein the plasticizer is glycerol or N-ethyl toluene sulfonamide.
Claim 13
Dependent Claim
16 words
The composition of claim 1 wherein the plasticizer has a solubility parameter of at least 10.
Claim 14
Dependent Claim
16 words
The method of claim 9 wherein the plasticizer has a solubility parameter of at least 10.
Claim 15
Dependent Claim
17 words
The composition of claim 1 wherein the polymer contains about 0.2 to about 10 mole % sulfonate.
Claim 16
Dependent Claim
17 words
The composition of claim 13 wherein the polymer contains about 0.5 to about 6 mole % sulfonate.
Claim 17
Dependent Claim
17 words
The composition of claim 14 wherein the polymer contains about 1.0 to about 4.0 mole % sulfonate.
Claim 18
Dependent Claim
17 words
The composition of claim 1 wherein the preferential plasticizer is, a glycol, a triol or a sulfonamide.
Claim 19
Dependent Claim
15 words
The composition of claim 1 wherein said preferential plasticizer is a glycol or a triol.
Claim 20
Dependent Claim
15 words
The method of claim 9 wherein said preferential plasticizer is a glycol or a triol.
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) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |