Patent US3928504A successfully refreshed from Google Patents.
US3928504A
Expired / Lapsed
US
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Dyeable polypropylene compositions containing a polyamine adduct
Assignee: Shell USA Inc
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Filing: 1974-12-06
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Granted: 1975-12-23
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Expires: 1994-12-06
Abstract
Abstract This invention relates to an improved dyeable polypropylene composition comprising a polypropylene and a polyamine adduct or salt thereof of a halogenated isotactic polypropylene having at least 25 carbon atoms and a polyamine group. The invention also relates to articles made from the improved dyeable polypropylene composition. This improved composition has better dyebath exhaustion characteristics, requires less amine adduct and is less sticky than compositions using known amine adducts.
Inventors
- 👤 Pieternella Koelewijn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:08
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08K; C08K3/00; C08K3/18; C08K3/24; C08K3/26; C08K5/00; C08K5/04; C08K5/10; C08K5/16; C08K5/17; C08L23/10; C08L23/26; C08L23/28; C08L23/286; Y; Y10; Y10S; Y10S8/00; Y10S8/09
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
23 words
AN IMPROVED DYEABLE POLYPROPYLENE COMPOSITION COMPRISING A ISOTACTIC POLYPROPYLENE AND A POLYAMINE ADDUCT CONTAINING AT LEAST TWO NITROGEN ATOMS HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
23 words
AN IMPROVED DYEABLE POLYPROPYLENE COMPOSITION COMPRISING A ISOTACTIC POLYPROPYLENE AND A POLYAMINE ADDUCT CONTAINING AT LEAST TWO NITROGEN ATOMS HAVING THE FOLLOWING FORMULA:
Claim 3
Dependent Claim
25 words
The composition of claim 1 wherein R is a polypropylene chain having an isotacticity of at least 60 percent and at least 50 carbon atoms.
Claim 4
Dependent Claim
29 words
The composition of claim 2 wherein R1 is a hydrogen or an alkyl group, R2 is an alkyl group and x is an integer from 1 to 6 inclusive.
Claim 5
Dependent Claim
7 words
The composition of claim 3 where the
Claim 6
Dependent Claim
19 words
The composition of claim 1 where the polyamine adduct has a number average molecular weight of 1,100 to 50,000.
Claim 7
Dependent Claim
30 words
The composition of claim 1 where the polyamine adduct in the composition is such as to provide therein 0.05 to 0.5 weight percent of amino nitrogen based on total composition.
Claim 8
Dependent Claim
25 words
The composition of claim 6 wherein the polyamine adduct used in the composition is present in an amount ranging from 3 to 10 weight percent.
Claim 9
Dependent Claim
20 words
The composition of claim 7 wherein the polyamine adduct used in the composition contains at least 1 weight percent nitrogen.
Claim 10
Dependent Claim
35 words
An improved dyeable substantially isotactic polypropylene composition comprising substantially isotactic polypropylene and a polyamine adduct made from the reaction of N,N-dimethyl-1,3-diaminopropane and a halogenated substantially isotactic polypropylene having a molecular weight between 2,500 and 7,500.
Claim 11
Dependent Claim
35 words
An improved dyeable substantially isotactic polypropylene composition comprising substantially isotactic polypropylene and a polyamine adduct made from the reaction of N,N-dimethyl-1,3-diaminopropane and a halogenated substantially isotactic polypropylene having a molecular weight between 2,500 and 7,500.
References Cited (Backward Citations)
GB1005638A
Cited
FR2149512A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |