US3668278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of polyolefins and polyamides
Assignee: Montedison SpA
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Filing: 1970-09-29
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Granted: 1972-06-06
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Expires: 1990-09-29
Abstract
Abstract A new class of basic polyamides having a molecular weight between about 2,000 and 200,000. The polyamides are prepared by first reacting an acrylic or methacrylic ester with a monoamine and then further reacting the product obtainable with a polyamine. The polyamides are suitable for use as tinctorial modifiers for polymeric materials and particularly for crystalline polyolefins consisting essentially of isotactic macromolecules.
Inventors
- 👤 Alberto Bonvicini
- 👤 Guiseppe Cantatore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:12
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/48; C08G69/50; C08G69/02; C08G69/26; C08L; C08L23/00; C08L23/02; C08L23/10; C08L77/00; C08L2203/00; C08L2203/12; C08L2207/00; C08L2207/10; C08L2207/14
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
25 words
The composition of claim 1 wherein the polyolefin is polyethylene, polypropylene, polybutene-1, poly-4-methylpentene-1, polystyrene or a crystalline ethylene-propylene copolymer having a predominant amount of propylene.
Claim 2
Dependent Claim
144 words
A dyeable composition comprising from about 99-75 percent by weight of a crystalline polyolefin consisting essentially of isotactic macromolecules, said polyolefin being selected from the group consisting of polyethylene, polypropylene, polybutene-1, poly-4-methylpentene-1, polystyrene and a crystalline ethylene-propylene copolymer having a predominant amount of propylene, and from about 1-25 percent by weight of the basic polyamide as defined in claim 1, wherein: a. that portion of formula I designated: is a residue of a monoamine selected from the group consisting of methylamine, ethylamine, propylamine, butylamine, hexylamine, octylamine, dodecylamine, octadecylamine, cyclohexylamine, aniline, and p-toluidine; b) that portion of formula I designated: -A-is a residue of methylacrylate, ethylacrylate, methylmethacrylate, butylacrylate, butylmethacrylate or 2-ethylhexylacrylate; and c. that portion of formula I designated: -X-is a residue of a polyamine selected from the group consisting of ethylenediamine, hexamethylenediamine, diethylentriamine, tetraethylenepentamine, piperazine, N-(2-aminoethyl)piperazine, p-phenylenediamine,4, 4''-methylenediamiline, N, N'' -dimethylhexa-methylenediamine and N, N''-dibutylhexamethylenediamine.
Claim 3
Dependent Claim
16 words
The polymeric composition of claim 3 in the form of fibers, films, strips, or shaped articles.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |