US3868433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic adhesive compositions
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1972-04-03
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Granted: 1975-02-25
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Expires: 1992-04-03
Abstract
Abstract Thermoplastic adhesive compositions such as hot melts containing conventional components are improved considerably by the inclusion of acid or acid derivative grafted polyolefins particularly acrylic acid-grafted polypropylene, polyethylene and/or ethylene-propylene polymer substances. Alternatively, novel adhesive compositions are prepared in which the polyolefin constituent is entirely a grafted polyolefin.
Inventors
- 👤 Kenneth W Bartz
- 👤 John J Higgins
- 👤 Anthony J Berejka
- 👤 Cresce Amerigo J Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:15
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; C08; C08F; C08F291/00; C09J151/00; C09J191/00; C09J191/06; C09J5/00; C09J5/06; C09J7/00; C09J7/10; C08L; C08L2666/00; C08L2666/02; C08L2666/24; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31786
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
152 words
A HOT MELT ADHESIVE COMPOSITION COMPRISING A MIXTURE OF: A. 5 TO 95 WEIGHT PERCENT OF A CONVENTIONAL HOT MELT POLYOLEFIN THERMOPLASTIC BASE COMPONENT, B. 95 TO 5 WEIGHT PERCENT OF A 10 TO 300 MFR, C2 TO C8 POLYOLEFIN POLYMER GRAFTED WITH FROM 0.1 TO 50 WEIGHT PERCENT OF A MONOMER IN AN EXTRUDER REACTION WHEREIN SAID GRAFTED POLYMER HAS A MFR AT LEAST 25% HIGHER THAN SAID POLYMER BEFORE GRAFTING AND WHEREIN SAID MONOMER IS SELECTED FROM A GROUP CONSISTING OF (a) A C3 TO C10 UNSATURATED MONOCARBOXYLIC ACID, (B) UNSATURATED POLYCARBOXYLIC ACIDS, (C) METAL SALT AND GLYCIDYL DERIVATIVES OF THE FOREGOING, AND (D) MIXTURES OF THE FOREGOING, AND WHEREBY SAID POLYMER COMPRISES 60 TO 40 WEIGHT PERCENT OF AN ELASTOMER, SELECTED FROM THE GROUP CONSISTING OF: I. ETHYLENE/PROPYLENE COPOLYMERS AND ETHYLENE/PROPYLENE DIENE MONOMER ELASTOMERS, II. POLYISOBUTYLENE ELASTOMERS, III. BUTYL RUBBER ELASTOMERS, IV. CHLOROBUTYL ELASTOMERS, V. COMBINATIONS OF THE FOREGOING.
Claim 2
Dependent Claim
152 words
A HOT MELT ADHESIVE COMPOSITION COMPRISING A MIXTURE OF: A. 5 TO 95 WEIGHT PERCENT OF A CONVENTIONAL HOT MELT POLYOLEFIN THERMOPLASTIC BASE COMPONENT, B. 95 TO 5 WEIGHT PERCENT OF A 10 TO 300 MFR, C2 TO C8 POLYOLEFIN POLYMER GRAFTED WITH FROM 0.1 TO 50 WEIGHT PERCENT OF A MONOMER IN AN EXTRUDER REACTION WHEREIN SAID GRAFTED POLYMER HAS A MFR AT LEAST 25% HIGHER THAN SAID POLYMER BEFORE GRAFTING AND WHEREIN SAID MONOMER IS SELECTED FROM A GROUP CONSISTING OF (a) A C3 TO C10 UNSATURATED MONOCARBOXYLIC ACID, (B) UNSATURATED POLYCARBOXYLIC ACIDS, (C) METAL SALT AND GLYCIDYL DERIVATIVES OF THE FOREGOING, AND (D) MIXTURES OF THE FOREGOING, AND WHEREBY SAID POLYMER COMPRISES 60 TO 40 WEIGHT PERCENT OF AN ELASTOMER, SELECTED FROM THE GROUP CONSISTING OF: I. ETHYLENE/PROPYLENE COPOLYMERS AND ETHYLENE/PROPYLENE DIENE MONOMER ELASTOMERS, II. POLYISOBUTYLENE ELASTOMERS, III. BUTYL RUBBER ELASTOMERS, IV. CHLOROBUTYL ELASTOMERS, V. COMBINATIONS OF THE FOREGOING.
Claim 3
Dependent Claim
15 words
The composition according to claim 1 wherein said thermoplastic based components has also been grafted.
Claim 4
Dependent Claim
23 words
A composition according to claim 1 wherein said grafting has been performed simultaneously on said blend of said elastomer and said polyolefin plastic.
Claim 5
Dependent Claim
13 words
A composition according to claim 1 wherein said composition also contains a tackifier.
Claim 6
Dependent Claim
12 words
A composition according to claim 1 wherein said carboxylic acid is acrylic.
Claim 7
Dependent Claim
78 words
A composition according to claim 1 wherein said polymer comprises: a. 60 to 40 weight percent of a C2 to C10 polyolefin plastic containing from 1 to 20 weight percent of grafted acrylic acid b. 40 to 60 weight percent of an elastomer selected from the group consisting of ethylene/propylene copolymer ethylene/propylene diene monomer copolymer butyl rubber, chlorobutyl rubber, bromobutyl rubber, sulfo ethylene propylene diene monomer rubber containing from 1 to 20 weight percent of grafted acrylic acid.
Claim 8
Dependent Claim
19 words
A composition according to claim 6 which also contains 1 to 75 weight percent of a tackifier or diluent.
Claim 9
Dependent Claim
13 words
An article comprising two adherent materials joined with the composition of claim 1.
Claim 10
Dependent Claim
19 words
A composition according to claim 6 wherein said grafting has been performed simultaneously on said plastic and said elastomer.
Claim 11
Dependent Claim
14 words
A shaped article prepared from the composition of claim 1 which is a film.
Claim 12
Dependent Claim
14 words
A shaped article prepared from the composition of claim 1 which is a web.
Claim 13
Dependent Claim
12 words
A web according to claim 11 wherein said web comprises nonwoven fibers.
Claim 14
Dependent Claim
18 words
A composition according to claim 1 wherein said polyolefin plastic is polypropylene and said graft is acrylic acid.
Claim 15
Dependent Claim
24 words
A composition according to claim 1 wherein said polyolefin plastic is polypropylene, said graft is acrylic acid and said elastomer is an ethylene/propylene copolymer.
Claim 16
Dependent Claim
16 words
A composition according to claim 14 wherein said grafting has been performed simultaneously on said blend.
Claim 17
Dependent Claim
18 words
A composition according to claim 1 wherein said polyolefin is polypropylene having an MFR of 10 to 500.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-24 | 1978-08-26 | 1979-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-24 | 1982-08-26 | 1983-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-24 | 1986-08-26 | 1987-02-25 | $7700.00 | Window Closed / Lapsed |