US4080362A
Expired / Lapsed
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Organotin stabilizers
Assignee: Akzo NV
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Filing: 1975-09-15
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Granted: 1978-03-21
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Expires: 1995-09-15
Abstract
Abstract Organotin trihalides are prepared by reacting in a polar solvent a stannous halide, hydrogen halide and an olefin of the formula <IMAGE> where R1, R2, R3, and R4 are an alkyl group, an oxygen-containing hydrocarbon group or a hydrogen atom and at least one of the groups contains a carbonyl group adjacent to the carbon-carbon double bond. The resulting product may be converted into organotin stabilizers for polyvinyl chloride and other polymers.
Inventors
- 👤 Ronald E. Hutton
- 👤 Vincent Oakes
- 👤 Joseph Burley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:17
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/22; C07F7/226; C07F7/2208
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
95 words
Organotin compounds of formula R Sn X 3 wherein R represents the structure ##STR24## with R 1 , R 2 , R 3 and R 4 being an alkyl group with 1-18 carbon atoms, an oxygen-containing hydrocarbon group or a hydrogen atom, provided that at least one of R 1 and R 2 contains a carbonyl group adjacent to HC, and wherein X is an organic residue selected from the groups consisting of -- S(CH 2 ) n COO alkyl with n = 1 or 2, --S alkyl, --OCO alkyl and --OCOCH = CHCOO alkyl.
Claim 2
Dependent Claim
95 words
Organotin compounds of formula R Sn X 3 wherein R represents the structure ##STR24## with R 1 , R 2 , R 3 and R 4 being an alkyl group with 1-18 carbon atoms, an oxygen-containing hydrocarbon group or a hydrogen atom, provided that at least one of R 1 and R 2 contains a carbonyl group adjacent to HC, and wherein X is an organic residue selected from the groups consisting of -- S(CH 2 ) n COO alkyl with n = 1 or 2, --S alkyl, --OCO alkyl and --OCOCH = CHCOO alkyl.
Claim 3
Dependent Claim
9 words
The compound of claim 1 having the formula ##STR25##
Claim 4
Dependent Claim
9 words
The compound of claim 1 having the formula ##STR26##
Claim 5
Dependent Claim
18 words
A polymer composition containing a stabilizing amount of one or more of the organotin compounds of claim 1.
Claim 6
Dependent Claim
19 words
A polyvinyl chloride composition containing a stabilizing amount of one or more of the organotin compounds of claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-20 | 1981-09-19 | 1982-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-20 | 1985-09-19 | 1986-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-20 | 1989-09-19 | 1990-03-21 | $7700.00 | Window Closed / Lapsed |