US4692269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-releasing composition for tailoring gas evolution of system
Assignee: Arkema Inc
•
Filing: 1986-05-13
•
Granted: 1987-09-08
•
Expires: 2006-05-13
Abstract
Abstract A gas-releasing composition of a t-alkylhydrazinium salt and/or a carbonylhydrazine and at least one compound selected from free radical forming sources, metal oxides, and sulfur and/or sulfur donor compounds wherein when sulfur and/or a sulfur donor compound is used, the composition will also contain one or more members selected from sulfur accelerators, metal oxides, and amino-alcohols. This novel gas-releasing composition permits the selectively tailoring of the gas evolution of a system in order to meet a wide range of specific application areas polymer characteristics and conditions over a wide temperature range.
Inventors
- 👤 Chester J. Kmiec
- 👤 Michael F. Novits
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:04
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; C08J9/10; C08J9/104
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
67 words
A gas-generating composition consisting essentially of a t-alkylhydrazinium salt and/or carbonylhydrazine and at least one compound selected from free radical forming sources; metal oxides selected from ZnO, PbO, Pb 3 O 4 or MgO; and sulfur or sulfur donor compounds wherein when sulfur and/or a sulfur donor compound is used, the composition will also contain one or more members selected from sulfur accelerators, metal oxides, and amino-alcohols.
Claim 2
Dependent Claim
67 words
A gas-generating composition consisting essentially of a t-alkylhydrazinium salt and/or carbonylhydrazine and at least one compound selected from free radical forming sources; metal oxides selected from ZnO, PbO, Pb 3 O 4 or MgO; and sulfur or sulfur donor compounds wherein when sulfur and/or a sulfur donor compound is used, the composition will also contain one or more members selected from sulfur accelerators, metal oxides, and amino-alcohols.
Claim 3
Dependent Claim
25 words
The composition of claim 1 wherein the t-alkylhydrazinium salt and/or carbonylhydrazine is selected from t-butylhydrazinium chloride, di-t-butylhydrazinium sulfate, t-amylhydrazinium chloride, di(t-butylhydrazinium)terephthalate, carbohydrazide, ethylcarbazate, and acetylhydrazide.
Claim 4
Dependent Claim
43 words
The composition of claim 2 wherein the free radical forming source is selected from di-cumyl peroxide, di-t-butyl peroxide, t-butyl cumyl peroxide, α,α'-di(t-butylperoxy)diisopropylbenzene, 2,5-dimethyl-2,5-di(t-butylperoxy)hexane, 2,5-dimethyl-2,5-di(t-butylperoxy)hexyne-3, 1,1-bis(t-butylperoxy)-3,3,5-trimethylcyclohexane, n-butyl 4,4-bis(t-butylperoxy)valerate, ethyl 3,3-di(t-butylperoxy)butyrate, 2,5-dimethyl-2,5-bis(2-ethylhexanoylperoxy)hexane, t-amylperoxy-2-ethylhexanoate, methyl ethyl ketone peroxide, 1,1-bis(t-butylperoxy)cyclohexane, 2,2'-azobis(2-methylbutyronitrile), 1,1'-azobis(cyclohexanecarbonitrile), 2-t-butylazo-2-cyanopropane, and azoisobutyrolnitrile, and 2,2'azobis(2-acetoxypropane).
Claim 5
Dependent Claim
63 words
The composition of claim 1 wherein the sulfur donor compound is selected from benzothiazyl disulfide, 2-mercaptobenzothiazole, zinc 2-mercaptobenzothiazole, copper 2-mercaptobenzothiazole, zinc dimethyldithiocarbamate, copper dimethyldithiocarbamate, lead diamyldithiocarbamate, lead dimethyldithiocarbamate, zinc diethyldithiocarbamate, zinc diamyldithiocarbamate, bismuth dimethyldithiocarbamate, cadmium diamyldithiocarbamate, cadmium diethyldithiocarbamate, selenium diethyldithiocarbamate, selenium dimethyldithiocarbamate, tellurium diethyldithiocarbamate, tetraethylthiuram disulfide, ethylene thiourea, tetrabutylthiuram disulfide, tetramethylthiuram disulfide, tetramethylthiuram monosulfide, trimethylthiourea, 1,3-diethylthiourea, 1,3-dibutylthiourea, 4-morpholinyl-2-benzothiazole disulfide, n-tert-butyl-2-benzothiazolesulfenamide and 2,5-dimercapto-1,3,4-thiadiazole monobenzoate.
Claim 6
Dependent Claim
18 words
The composition of claim 4 wherein the sulfur accelerator is selected from aldehyde amine, guanidine, and metal oxide.
Claim 7
Dependent Claim
25 words
The composition of claim 1 wherein sulfur is used and the accelerator is selected from sulfur donor compound, amino-alcohol, metal oxide, aldehyde amine, and guanidine.
References Cited (Backward Citations)
US4322502A
Cited
US4327196A
Cited
US4393148A
Cited
US4435525A
Cited
JPS60220725A
Cited
US4547235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-09-07 | 1991-03-09 | 1991-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-07 | 1995-03-09 | 1995-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-07 | 1999-03-09 | 1999-09-08 | $7700.00 | Window Closed / Lapsed |