US4487810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic compositions based on non-polar organic polymers and zeolites in acid form; which have strong adhesion to metals, and composite objects obtainable therefrom
Assignee: ECP Enichem Polimeri SRL
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Filing: 1983-05-03
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Granted: 1984-12-11
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Expires: 2003-05-03
Abstract
Abstract A thermoplastic composition based on non-polar organic polymers and crystalline zeolites in acid form of which the exchangeable ions are totally or partly substituted by H + ions, the composition having strong adhesion to metals, the invention also relating to composite objects obtainable therefrom.
Inventors
- 👤 Paolo Ascarelli
- 👤 Gianfranco Boccalon
- 👤 Giuliano Moretti
- 👤 Nicola Nistico'
- 👤 Alberto Pelacani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:41
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; C08; C08K; C08K3/00; C08K3/34; C09J123/26; C09J123/28; C08L; C08L2666/00; C08L2666/54; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31696; Y10T428/31699
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
51 words
A thermoplastic composition which comprises organic polymers and at least one anhydrous crystalline zeolite in acid form, of which the exchangable ions are replaced totally or partially by H + ions said zeolite having a particle size less than 10 microns and an internal pore diameter of greater than 3 Angstroms.
Claim 2
Dependent Claim
51 words
A thermoplastic composition which comprises organic polymers and at least one anhydrous crystalline zeolite in acid form, of which the exchangable ions are replaced totally or partially by H + ions said zeolite having a particle size less than 10 microns and an internal pore diameter of greater than 3 Angstroms.
Claim 3
Dependent Claim
29 words
A thermoplastic composition as claimed in claim 1, characterised in that the crystalline zeolite in acid form is present in a quantity varying between 0.1 and 70% by weight.
Claim 4
Dependent Claim
39 words
A thermoplastic composition as claimed in claim 1, characterised in that the organic polymer is preferably chosen from olefin and/or diolefin hydrocarbon polymers and copolymers, including halogenated, copolymers of olefins with vinyl monomers, and copolymers of diolefins with styrene.
Claim 5
Dependent Claim
22 words
A thermoplastic composition as claimed in claim 1, characterised in that the zeolite component is preferably Type X zeolite in acid form.
Claim 6
Dependent Claim
22 words
A thermoplastic composition as claimed in claim 1, characterised in that the zeolite component is preferably Type Y zeolite in acid form.
Claim 7
Dependent Claim
22 words
A thermoplastic composition as claimed in claim 1, characterised in that the zeolite component is preferably Type A zeolite in acid form.
Claim 8
Dependent Claim
21 words
A thermoplastic composition as claimed in claim 1, characterised in that the zeolite component is preferably mordenite-type zeolite in acid form.
Claim 9
Dependent Claim
22 words
A thermoplastic composition as claimed in claim 1, characterised in that the zeolite component is preferably Type ZSM zeolite in acid form.
Claim 10
Dependent Claim
24 words
An article constituted by at least two equal or different metal substrates between which a thermoplastic composition as claimed in claim 1 is disposed.
Claim 11
Dependent Claim
17 words
An article constituted by a metal substrate coated with a thermoplastic composition as claimed in claim 1.
Claim 12
Dependent Claim
29 words
An article constituted in claims 9 or 10, characterised in that the metal is preferably chosen from aluminum, iron, steel, nickel, chromium, titanium, zinc, tin, magnesium, and aluminium alloys.
Claim 13
Independent Claim
66 words
A method of improving the adhesion to metal properties of a thermoplastic resin, said method comprising adding to said thermoplastic resin from 4-40% by weight of an anhydrous zeolite in acid form of which the exchangeable ions are replaced totally or partially by H + ions said zeolite having a particle size less than 10 microns and an internal pore diameter of greater than 3 Angstroms.
Claim 14
Independent Claim
66 words
A method of improving the adhesion to metal properties of a thermoplastic resin, said method comprising adding to said thermoplastic resin from 4-40% by weight of an anhydrous zeolite in acid form of which the exchangeable ions are replaced totally or partially by H + ions said zeolite having a particle size less than 10 microns and an internal pore diameter of greater than 3 Angstroms.
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) | 1987-12-11 | 1988-06-11 | 1988-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-11 | 1992-06-11 | 1992-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-11 | 1996-06-11 | 1996-12-11 | $7700.00 | Window Closed / Lapsed |