US3725338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostabilized chlorine-containing polymers
Assignee: Ciba Geigy Marienberg GmbH
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Filing: 1970-09-04
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Granted: 1973-04-03
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Expires: 1990-09-04
Abstract
Abstract Compositions comprising an ester of aminocrotonic acid and 0.1 to 10 weight per cent of an organometal compound corresponding to the formula
Inventors
- 👤 L Weisfeld
- 👤 Auerbach H Bensheim
- 👤 H Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:39
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/16; C08K5/17; C08K5/175; C08K5/57
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
34 words
The heat stabilizer composition of claim 1 wherein the organo metal compound is present in an amount of 0.5 to 5 weight per cent corresponds to a formula selected from the group consisting of
Claim 2
Dependent Claim
34 words
The heat stabilizer composition of claim 1 wherein the organo metal compound is present in an amount of 0.5 to 5 weight per cent corresponds to a formula selected from the group consisting of
Claim 3
Dependent Claim
97 words
The heat stabilizing composition of claim 1 wherein said ester is selected from the group consisting of thiodiethylene glycol amino crotonate, octylamino crotonate, ethylene glycol amino crotonate and oxydipropylene glycol amino crotonate and said organo metal compound is present in an amount of 0.5 to 5 weight per cent and is selected from the group consisting of methyl stannoic acid, butyl stannoic acid, butyl thiostannoic acid, octyl thiostannoic acid, phenyl stannoic acid, dibutyl tin oxide, dibutyl tin sulfide, dioctyl tin oxide, diphenyl tin oxide, diphenyl lead oxide, diphenyl lead sulfide, triphenyl tin oxide and triphenyl lead sulfide.
Claim 4
Dependent Claim
50 words
A halogen containing resin composition comprising a resin selected from the group consisting of polyvinyl chloride, polyvinylidene chloride, copolymers of vinyl chloride with vinylidene chloride, vinyl acetate and styrene and mixtures of polyvinyl chloride and chlorinated polyolefins and 0.1 to 5 weight per cent of the stabilizer of claim 1.
Claim 5
Dependent Claim
17 words
A polyvinylchloride resin composition containing 1 to 3 weight per cent of the stabilizer of claim 2.
Claim 6
Dependent Claim
27 words
A polyvinyl chloride resin composition of claim 6 wherein said resin is polyvinyl chloride containing 1 to 3 weight per cent of the stabilizer of claim 3.
References Cited (Backward Citations)
US2267777A
Cited
US2746946A
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US3021302A
Cited
US3167527A
Cited
US3249584A
Cited
US3412139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |