US3980736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Homogeneous polyolefin and arylvinyl-polymer-based compositions
Assignee: ATO Chimie SA
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Filing: 1974-09-09
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Granted: 1976-09-14
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Expires: 1994-09-09
Abstract
Abstract This invention concerns a process for obtaining homogeneous polymer compositions containing at least one olefin polymer and/or one arylvinyl polymer. The process consists of adding, to either or to a mixture of both of these polymers, one or more block copolymers, containing one polyolefin and one polyarylvinyl sequence. These polymer compositions provide homogeneous substances with properties combining those of the individual polymers, and in some mixtures these properties are considerably improved as the result of synergic phenomena.
Inventors
- 👤 Elias Agouri
- 👤 Raymond Catte
- 👤 Jean-Louis Dauba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:02
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/08; C08L23/0846; C08L23/0853; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08L53/00; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/139; Y10T428/1397; Y10T428/24; Y10T428/24628; Y10T428/24669; Y10T428/24694
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
60 words
A homogeneous polymer composition comprising one member of the group consisting of monoolefin polymer and polystyrene, and at least one polymonoolefin-polystyrene block copolymer containing one polymonoolefin and one polystyrene sequence wherein said block copolymer is present in an amount of 0.6 % to 80 % based on the total weight of said block copolymer and said member of the group.
Claim 2
Dependent Claim
60 words
A homogeneous polymer composition comprising one member of the group consisting of monoolefin polymer and polystyrene, and at least one polymonoolefin-polystyrene block copolymer containing one polymonoolefin and one polystyrene sequence wherein said block copolymer is present in an amount of 0.6 % to 80 % based on the total weight of said block copolymer and said member of the group.
Claim 3
Dependent Claim
24 words
The homogeneous polymer composition of claim 1 wherein said group consists of polyethylene, polypropylene, polybutene, polymethylpentene, ethylene/propylene block copolymer, ethylene/vinyl acetate copolymer, and polystyrene.
Claim 4
Dependent Claim
19 words
The homogeneous polymer composition of claim 1 comprising low density polyethylene and 20 to 50 weight percent block copolymer.
Claim 5
Dependent Claim
18 words
The homogeneous polymer composition of claim 1 wherein the member of the group is an ethylene/vinyl acetate copolymer.
Claim 6
Dependent Claim
19 words
The homogeneous polymer composition of claim 1 wherein the amount of block copolymer is less than 10 weight percent.
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) | 1979-09-14 | 1980-03-15 | 1980-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-14 | 1984-03-15 | 1984-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-14 | 1988-03-15 | 1988-09-14 | $7700.00 | Window Closed / Lapsed |