US4304697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt adhesive compositions
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1980-10-14
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Granted: 1981-12-08
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Expires: 2000-10-14
Abstract
Abstract This invention relates to hot melt adhesive compositions which includes a neutralized sulfonated elastomeric polymer having about 5 to about 50 meq. of neutralized sulfonate groups per 100 grams of the neutralized sulfonated elastomeric polymer, and about 25 to about 250 parts by weight of a hydrocarbon resin of a petroleum or coal tar distillate, aliphatic dienes and mono and diolefins, cyclic olefins of 5 or 6 carbon atoms and hydrogenated poly cyclics per 100 parts by weight of the neutralized sulfonated EPDM terpolymer.
Inventors
- 👤 Pawan K. Agarwal
- 👤 Robert D. Lundberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:16
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/26; C09J123/32; C09J157/00; C09J157/02; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
65 words
A hot melt adhesive composition which comprises: (a) a neutralized sulfonated EPDM terpolymer having about 5 to about 50 meq. of neutralized sulfonated groups per 100 grams of said neutralized sulfonated EPDM terpolymer; and (b) about 25 to about 250 parts by weight of a hydrocarbon resin of a petroleum or coal tar distillate per 100 parts by weight of said neutralized sulfonated EPDM terpolymer.
Claim 2
Dependent Claim
65 words
A hot melt adhesive composition which comprises: (a) a neutralized sulfonated EPDM terpolymer having about 5 to about 50 meq. of neutralized sulfonated groups per 100 grams of said neutralized sulfonated EPDM terpolymer; and (b) about 25 to about 250 parts by weight of a hydrocarbon resin of a petroleum or coal tar distillate per 100 parts by weight of said neutralized sulfonated EPDM terpolymer.
Claim 3
Dependent Claim
47 words
A hot melt adhesive composition according to claim 1, wherein said EPDM terpolymer consists of about 40 to about 65 weight percent of ethylene, of about 25 to about 53 weight percent of propylene and of about 2 to about 10 weight percent of a non-conjugated diene.
Claim 4
Dependent Claim
15 words
A hot melt adhesive composition according to claim 2, wherein said non-conjugated diene is 5-ethylidene-2-norbornene.
Claim 5
Dependent Claim
43 words
A hot melt adhesive composition according to claim 1, wherein said neutralized sulfonate groups are neutralized with a counterion selected from the group consisting of ammonium, aluminum, antimony, iron, lead and Groups IA, IIA, IB and IIB of the Periodic Table of Elements.
Claim 6
Dependent Claim
19 words
A hot melt adhesive composition according to claim 1, wherein said neutralized sulfonate groups are neutralized with zinc ions.
Claim 7
Dependent Claim
81 words
A hot melt adhesive according to claim 1 further including about 1 to about 50 parts by weight of an ionic preferential plasticizer per 100 parts by weight of said neutralized sulfonated EPDM terpolymer, wherein said preferential plasticizer is selected from the group consisting of carboxylic acids having about 8 to about 22 carbon atoms, metallic salts of said carboxylic acids, amides having an aliphatic group of about 8 to about 22 carbon atoms, amines, ureas and thioureas and mixtures thereof.
Claim 8
Dependent Claim
31 words
A hot melt adhesive composition according to claim 6, wherein said sulfonated neutralized EPDM terpolymer contains about 7 to about 20 meq. of neutralized sulfonated groups per 100 grams of polymer.
Claim 9
Dependent Claim
20 words
A hot melt adhesive according to claim 7, wherein said preferential plasticizer is said metallic salt of said carboxylic acid.
Claim 10
Dependent Claim
20 words
A hot melt adhesive composition according to claim 8, wherein said metallic salt of said carboxylic acid is zinc stearate.
Claim 11
Dependent Claim
84 words
A hot melt adhesive composition according to claim 1 or 6 further including about 1 to about 150 parts by weight of a filler per 100 parts by weight of said neutralized sulfonated EPDM terpolymer, said filler being selected from the group consisting of calcium carbonates, silicas, carbon blacks, clays and talcs and mixtures thereof and/or less than about 100 parts by weight of an oil having less than 2 weight percent polars per 100 parts by weight of said neutralized sulfonated EPDM terpolymer.
Claim 12
Dependent Claim
33 words
A hot melt adhesive composition according to claim 1 or 8 wherein said hydrocarbon resin has about 5 to 6 carbon atoms and consists of aliphatic dienes, mono and diolefins and cyclic olefins.
References Cited (Backward Citations)
US3093601A
Cited
US3235522A
Cited
US3882065A
Cited
US4072735A
Cited
US4127546A
Cited
US4153588A
Cited
US4187206A
Cited
US4208310A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-07 | 1985-06-08 | 1985-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-07 | 1989-06-08 | 1989-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-07 | 1993-06-08 | 1993-12-08 | $7700.00 | Window Closed / Lapsed |