US4269761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylnaphthalene sulfonic acid salts as filler deactivators in polyolefins
Assignee: Vanderbilt Chemicals LLC
•
Filing: 1979-03-12
•
Granted: 1981-05-26
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Expires: 1999-03-12
Abstract
Abstract A method for enhancing the thermal stability of polymeric compositions containing inorganic fillers and conventional stabilizers by adding as filler deactivator normal and overbased ammonium, alkali metal and alkaline earth metal salt of monoalkyl- and dialkylnaphthalenesulfonic acid and stabilized compositions thereof.
Inventors
- 👤 Richard A. Suhoza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:39
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
90 words
An improved stabilized polyolefin composition containing an inorganic or mineral filler and antioxidants wherein the improvement comprises: about 0.5 to 15 parts and preferably 0.8 to 2.5 parts based on hundred parts polymer of a filler deactivator selected from a group consisting of normal salts of alkylnaphthalenesulfonic acid of the formula ##STR3## overbased salts of the formula ##STR4## and mixtures thereof wherein R 1 =nonyl, dodecyl; R 2 =H, nonyl, dodecyl; M=ammonium radical, Group IA and Group IIA metals; n=1-2; x>1 X=anion of a base, anion of a weak acid
Claim 2
Dependent Claim
90 words
An improved stabilized polyolefin composition containing an inorganic or mineral filler and antioxidants wherein the improvement comprises: about 0.5 to 15 parts and preferably 0.8 to 2.5 parts based on hundred parts polymer of a filler deactivator selected from a group consisting of normal salts of alkylnaphthalenesulfonic acid of the formula ##STR3## overbased salts of the formula ##STR4## and mixtures thereof wherein R 1 =nonyl, dodecyl; R 2 =H, nonyl, dodecyl; M=ammonium radical, Group IA and Group IIA metals; n=1-2; x>1 X=anion of a base, anion of a weak acid
Claim 3
Dependent Claim
16 words
A composition according to claim 1 wherein the deactivator is normal calcium salt of dinonylnaphthalenesulfonic acid.
Claim 4
Dependent Claim
16 words
A composition according to claim 1 wherein the deactivator is normal calcium salt of monododecylnaphthalenesulfonic acid.
Claim 5
Dependent Claim
16 words
A composition according to claim 1 wherein the deactivator is normal sodium salt of monododecylnaphthalenesulfonic acid.
Claim 6
Dependent Claim
16 words
A composition according to claim 1 wherein the deactivator is overbased calcium salt of dinonylnaphthalenesulfonic acid.
Claim 7
Dependent Claim
87 words
An improved method for stabilizing polyolefin compositions containing inorganic or mineral fillers by adding antioxidants wherein the improvement comprises: adding about 0.5 to 15 parts based on hundred parts polymer of a filler deactivator selected from the group consisting of normal salts of alkylnaphthalenesulfonic acid of the formula: ##STR5## overbased salts of the formula ##STR6## and mixtures thereof wherein R 1 =nonyl, dodecyl; R 2 =H, nonyl, dodecyl; M=ammonium radical, Group IA and Group IIA metals; n=1-2; x>1 X=anion of a base, anion of a weak acid.
Claim 8
Dependent Claim
87 words
An improved method for stabilizing polyolefin compositions containing inorganic or mineral fillers by adding antioxidants wherein the improvement comprises: adding about 0.5 to 15 parts based on hundred parts polymer of a filler deactivator selected from the group consisting of normal salts of alkylnaphthalenesulfonic acid of the formula: ##STR5## overbased salts of the formula ##STR6## and mixtures thereof wherein R 1 =nonyl, dodecyl; R 2 =H, nonyl, dodecyl; M=ammonium radical, Group IA and Group IIA metals; n=1-2; x>1 X=anion of a base, anion of a weak acid.
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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) | 1984-05-25 | 1984-11-24 | 1985-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-25 | 1988-11-24 | 1989-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-25 | 1992-11-24 | 1993-05-26 | $7700.00 | Window Closed / Lapsed |