US4448934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of ionic elastomers and nylon
Assignee: Uniroyal Chemical Co Inc
•
Filing: 1982-02-02
•
Granted: 1984-05-15
•
Expires: 2002-02-02
Abstract
Abstract Blends of nylon and an elastomer containing neutralized sulfonated ethylene propylene diene rubbers (EPDM) and a preferential plasticizer and a process for the preparation thereof. The blend preferably comprises from 5 to 60 wt. % of the elastomer and forms compositions having high impact resistance.
Inventors
- 👤 Ebon P. Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:37
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/26; C08L23/32; C08J; C08J3/00; C08J3/005; C08L77/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
48 words
A polymeric blend which comprises an admixture of: 5 to 60 parts of an ionically crosslinked elastomer containing neutralized sulfonated EPDM; 40 to 95 parts of nylon 1; and 5 to 50 parts, per 100 parts of said elastomer, of zinc stearate; all said parts being by weight.
Claim 2
Dependent Claim
48 words
A polymeric blend which comprises an admixture of: 5 to 60 parts of an ionically crosslinked elastomer containing neutralized sulfonated EPDM; 40 to 95 parts of nylon 1; and 5 to 50 parts, per 100 parts of said elastomer, of zinc stearate; all said parts being by weight.
Claim 3
Dependent Claim
31 words
A blend in accodance with claim 1 wherein said zinc stearate is present in a concentration of 6 to 16 parts by weight per 100 parts by weight of said elastomer.
Claim 4
Dependent Claim
31 words
A blend in accordance with claim 2 wherein said zinc stearate is present in a concentration of 8 to 10 parts by weight per 100 parts by weight of said elastomer.
Claim 5
Dependent Claim
90 words
A process for preparing a polymeric blend which comprises preparing a masterbatch consisting essentially of 40 to 60 parts of nylon 11 and correspondingly 60 to 40 parts of an ionically crosslinked elastomer containing a neutralized sulfonated EPDM and 5 to 50 parts of zinc stearate per 100 parts of said ionically crosslinked elastomer, admixing said masterbatch with nylon 11 to produce a blend which includes 5 to 60 parts of said ionically crosslinked elastomer and 40 to 95 parts of said nylon 11, all said parts being by weight.
Claim 6
Dependent Claim
90 words
A process for preparing a polymeric blend which comprises preparing a masterbatch consisting essentially of 40 to 60 parts of nylon 11 and correspondingly 60 to 40 parts of an ionically crosslinked elastomer containing a neutralized sulfonated EPDM and 5 to 50 parts of zinc stearate per 100 parts of said ionically crosslinked elastomer, admixing said masterbatch with nylon 11 to produce a blend which includes 5 to 60 parts of said ionically crosslinked elastomer and 40 to 95 parts of said nylon 11, all said parts being by weight.
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) | 1987-05-15 | 1987-11-14 | 1988-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-15 | 1991-11-14 | 1992-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-15 | 1995-11-14 | 1996-05-15 | $7700.00 | Window Closed / Lapsed |