US3922249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized antistatic compositions useful with olefin polymers
Assignee: Phillips Petroleum Co
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Filing: 1973-04-12
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Granted: 1975-11-25
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Expires: 1993-04-12
Abstract
Abstract Antistatic agents are stabilized against discoloration by admixture with pentaerythritol derivative phosphite esters. The resulting composition alone or admixed with thermal stabilizers is admixed with olefin polymers to prevent yellowing of the antistatic, heat stabilized olefin polymer composition.
Inventors
- 👤 Kenneth R Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:55
CPC Classifications
C; C09; C09K; C09K15/00; C09K15/04; C09K15/32; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/49; C08K5/51; C08K5/52; C08K5/527; C09K3/00; C09K3/16
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
21 words
AN ANTISTATIC COMPOSITION STABILIZED AGAINST DISCOLORATION COMPRISING AN ANTISTATIC AGENT SELECTED FROM AT LEAST ONE TERTIARY AMINE REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
21 words
AN ANTISTATIC COMPOSITION STABILIZED AGAINST DISCOLORATION COMPRISING AN ANTISTATIC AGENT SELECTED FROM AT LEAST ONE TERTIARY AMINE REPRESENTED BY THE FORMULA
Claim 3
Dependent Claim
31 words
A composition of claim 1 wherein the antistatic agent is selected from the group consisting of N,N-bis(2-hydroxyethyl)-N-octylamine; N,N-bis(2-hydroxyethyl)-N-octadecylamine; N,N-bis((poly (oxyethylene))-N-dodecylamine; and mixtures thereof and the phosphite compound is distearyl pentaerythritol diphosphite.
Claim 4
Dependent Claim
18 words
The composition of claim 1 also comprising admixed therewith an effective amount of a hindered phenol thermal stabilizer.
Claim 5
Dependent Claim
31 words
The composition of claim 3 wherein the antistatic agent is selected from the group consisting of N,N-bis(2-hydroxyethyl)-N-octylamine; N,N-bis(2-hydroxyethyl)-N-octadecylamine; N,N-bis((poly (oxyethylene))-N-dodecylamine; and mixtures thereof and the phosphite compound is distearyl pentaerythritol diphosphite.
Claim 6
Dependent Claim
15 words
A stabilized composition comprising an olefin polymer and a composition of matter of claim 3.
Claim 7
Dependent Claim
37 words
The composition of claim 5 wherein the olefin polymer is polyethylene, and the ingredients of the stabilized antistatic composition are present in amounts sufficient to stabilize the polymer against discoloration while providing thermal stabilization and antistatic properties.
Claim 8
Dependent Claim
55 words
The composition of claim 6 wherein the phosphite compound is present in the amount of 0.005-1 parts per hundred parts of polymer, the antistatic agent is present in the amount of 0.02-2 parts per hundred parts of polymer, and the thermal stabilizer is present in the amount of 0.01-1 parts per hundred parts of polymer.
Claim 9
Dependent Claim
30 words
The composition of claim 7 wherein the antistatic agent is selected from the group consisting of N,N-bis(2-hydroxyethyl)-N-octylamine; N,N-bis(2-hydroxyethyl)-N-octadecylamine; N,N-bis(poly(oxyethylene))-N-dodecylamine; and mixtures thereof and the phosphite compound is distearly pentaerythritol diphosphite.
Claim 10
Dependent Claim
29 words
A method for stabilizing olefin polymers said method comprising: (a) preparing a composition of claim 1, and (b) admixing a stabilizing amount of said composition with an olefin polymer.
Claim 11
Dependent Claim
29 words
A method for stabilizing olefin polymers said method comprising: (a) preparing a composition of claim 3, and (b) admixing a stabilizing amount of said composition with an olefin polymer.
Claim 12
Dependent Claim
37 words
A method of claim 10 for stabilizing olefin polymers wherein the antistatic agent is selected from the group consisting of N, N-bis (2-hydroxyethyl)-N-octylamine; N,N-bis(2-hydroxyethyl)-N-octodecylamine; N,N-bis((poly (oxyethylene))-N-dodecylamine; and mixtures thereof and the phosphite compound is distearyl pentaerythritol diphosphite.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |