US3262989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamide containing oxidized polyethylene
Assignee: Monsanto Co
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Filing: 1962-10-11
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Granted: 1966-07-26
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Expires: 1982-10-11
Abstract
No abstract record available.
Inventors
- 👤 Edmond P Brignac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:00
CPC Classifications
C; C08; C08L; C08L77/00; C08L77/02; C08L77/06; D; D01; D01F; D01F1/00; D01F1/02; D01F1/10; D01F6/00; D01F6/58; D01F6/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A PROCESS FOR PREPARING POLYAMIDE POLYMER HAVING INCREASED ABRASION RESISTANCE COMPRISING, IN COMBINATION, THE STEPS OF: (A) SUBSTANTIALLY HOMOGENOUSLY MIXING POLYHEXAMETHYLENE ADIPAMIDE AND FROM 0.1% TO 5.0%, BY WEIGHT OF SAID POLYHEXAMETHYLENE ADIPAMIDE, OF PARTIALLY OXIDIZED POLYETHYLENE POLYMER HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF 1,000 TO 3,000, AN ACID NUMBER OF 9 TO 16, AND A SAPONIFICATION NUMBER OF 24 TO 30; AND (B) MELT-EXTRUDING RESULTING SUBSTANTIALLY HOMOGENEOUSLY MIXED MATERIAL INTO DESIRED FORM FOR SUBSEQUENTLY USE.
Claim 2
Dependent Claim
77 words
A PROCESS FOR PREPARING POLYAMIDE POLYMER HAVING INCREASED ABRASION RESISTANCE COMPRISING, IN COMBINATION, THE STEPS OF: (A) SUBSTANTIALLY HOMOGENOUSLY MIXING POLYHEXAMETHYLENE ADIPAMIDE AND FROM 0.1% TO 5.0%, BY WEIGHT OF SAID POLYHEXAMETHYLENE ADIPAMIDE, OF PARTIALLY OXIDIZED POLYETHYLENE POLYMER HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF 1,000 TO 3,000, AN ACID NUMBER OF 9 TO 16, AND A SAPONIFICATION NUMBER OF 24 TO 30; AND (B) MELT-EXTRUDING RESULTING SUBSTANTIALLY HOMOGENEOUSLY MIXED MATERIAL INTO DESIRED FORM FOR SUBSEQUENTLY USE.
References Cited (Backward Citations)
US2890125A
Cited
US3093255A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |