Patent US4127617A successfully refreshed from Google Patents.
US4127617A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock-resistant resin and method for their preparation
Assignee: Anic SpA
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Filing: 1976-09-20
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Granted: 1978-11-28
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Expires: 1996-09-20
Abstract
Abstract Improved shock-resistant resins are obtained by graft-copolymerizing a monomer selected from among alkenyl aromatics, vinylics, acrylics, their halogenated derivatives or admixtures of same, with maleic anhydride and/or an imide derivative of such anhydride and with a terpolymer composed by ethylene, a higher homolog of ethylene and a polyene having at least one system of conjugated double bonds.
Inventors
- 👤 Sergio Arrighetti
- 👤 Aldo Brancaccio
- 👤 Sebastiano Cesca
- 👤 Giampaolo Guiliani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:25
CPC Classifications
C; C08; C08F; C08F255/00; C08F255/02; C08F255/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
28 words
A shock resistant resin formed by grafting (a) a mixture of styrene and acrylonitrile, and (b) N-phenyl maleic imide onto (c) a terpolymer of ethylene, propylene and 1-isopropylidenedyclopentadiene.
Claim 2
Dependent Claim
28 words
A shock resistant resin formed by grafting (a) a mixture of styrene and acrylonitrile, and (b) N-phenyl maleic imide onto (c) a terpolymer of ethylene, propylene and 1-isopropylidenedyclopentadiene.
Claim 3
Dependent Claim
34 words
A shock resistant resin formed by grafting (a) a mixture of styrene and acrylonitrile, and (b) a mixture of N-phenyl maleic imide and N-maleic imide onto (c) a terpolymer of ethylene, propylene and 1-isopropylidenedyclopentadiene.
Claim 4
Dependent Claim
34 words
A shock resistant resin formed by grafting (a) a mixture of styrene and acrylonitrile, and (b) a mixture of N-phenyl maleic imide and N-maleic imide onto (c) a terpolymer of ethylene, propylene and 1-isopropylidenedyclopentadiene.
Claim 5
Dependent Claim
28 words
A shock resistant resin formed by grafting (a) a mixture of styrene and acrylonitrile, and (b) N-tert-butyl maleic imide onto (c) a terpolymer of ethylene, propylene and 2-(2',4'-dimethyl-penta-1',3'-dimethyl)-nor-born-5-ene.
Claim 6
Dependent Claim
28 words
A shock resistant resin formed by grafting (a) a mixture of styrene and acrylonitrile, and (b) N-tert-butyl maleic imide onto (c) a terpolymer of ethylene, propylene and 2-(2',4'-dimethyl-penta-1',3'-dimethyl)-nor-born-5-ene.
Claim 7
Dependent Claim
27 words
A shock resistant resin formed by grafting (a) a mixture of styrene and acrylonitrile, and (b) N-(betanaphythyl)-maleic imide onto (c) a terpolymer of ethylene, propylene and (2-nor-born-5-enyl)-(cyclohexa-1'3'-dimethyl-2',5'-trimethyl)-methane.
Claim 8
Dependent Claim
27 words
A shock resistant resin formed by grafting (a) a mixture of styrene and acrylonitrile, and (b) N-(betanaphythyl)-maleic imide onto (c) a terpolymer of ethylene, propylene and (2-nor-born-5-enyl)-(cyclohexa-1'3'-dimethyl-2',5'-trimethyl)-methane.
Claim 9
Dependent Claim
34 words
A shock resistant resin formed by grafting (a) a mixture of styrene and acrylonitrile, and (b) a mixture of N-phenyl maleic imide and maleic imide onto (c) a terpolymer of ethylene, propylene and 1-isopropylene-dicyclopentadiene.
Claim 10
Dependent Claim
34 words
A shock resistant resin formed by grafting (a) a mixture of styrene and acrylonitrile, and (b) a mixture of N-phenyl maleic imide and maleic imide onto (c) a terpolymer of ethylene, propylene and 1-isopropylene-dicyclopentadiene.
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 |