US4134878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel organotin stabilizer compositions and polyvinyl resins stabilized therewith
Assignee: Akzo NV
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Filing: 1976-11-15
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Granted: 1979-01-16
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Expires: 1996-11-15
Abstract
Abstract A stabilizer composition for polyvinyl polymers contains (A) AN ORGANOTIN COMPOUND HAVING THE FORMULA: <IMAGE> WHEREIN M + N = 4 AND M IS EITHER 1 OR 2, R1, R2, R3 and R4 are each independently a hydrogen atom, or an alkyl or substituted alkyl group having 1 to 18 carbon atoms with the proviso that at least one of R1 and R2 contains adjacent to the group HC- a carbonyl group which forms a part of an acid group, ester group, acid halide group, ketone group or aldehyde group; X is a -S (CH2)y-COOR5 or -S (CH2)y-OCOR5 wherein y is 1 or 2, or a -SR5, -OCOR5 or -OCOCH=CHCOOR5, R5 having 1 to 18 carbon atoms; and (B) AN ORGANOTIN SULFIDE HAVING THE FORMULA (R Sn S1.5)n or R2Sn S, wherein n is 2 to 10 and R is an alkyl group having 1 to 18 carbon atoms or the group: <IMAGE> wherein R1, R2, R3 and R4 are as above defined under (a).
Inventors
- 👤 Joseph W. Burley
- 👤 Ronald E. Hutton
- 👤 Vincent Oakes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:51
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/57; C08K5/58
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
204 words
A stabilizer composition which comprises a synergistic combination of: (a) an organotin compound having the formula: ##STR9## wherein m + n = 4 and m is either 1 or 2, R 1 , R 2 , R 3 and R 4 are each independently a hydrogen atom, or an alkyl or substituted alkyl group having 1 to 18 carbon atoms with the proviso that at least one of R 1 and R 2 contains adjacent to the group HC-- a carbonyl group which forms a part of an acid group, ester group, acid halide group, ketone group or aldehyde group; X is a -- S (CH 2 ) y --COOR 5 or -- S (CH 2 ) y --OCOR 5 wherein y is 1 or 2, or a --SR 5 , --OCOR 5 or --OCOCH═CHCOOR 5 , R 5 having 1 to 18 carbon atoms; and (b) an organotin sulfide having the formula (R Sn S 1 .5) n or R 2 Sn S, wherein n is 2 to 10 and R is an alkyl group having 1 to 18 carbon atoms or the group: ##STR10## wherein R 1 , R 2 , R 3 and R 4 are as above defined under (a).
Claim 2
Dependent Claim
204 words
A stabilizer composition which comprises a synergistic combination of: (a) an organotin compound having the formula: ##STR9## wherein m + n = 4 and m is either 1 or 2, R 1 , R 2 , R 3 and R 4 are each independently a hydrogen atom, or an alkyl or substituted alkyl group having 1 to 18 carbon atoms with the proviso that at least one of R 1 and R 2 contains adjacent to the group HC-- a carbonyl group which forms a part of an acid group, ester group, acid halide group, ketone group or aldehyde group; X is a -- S (CH 2 ) y --COOR 5 or -- S (CH 2 ) y --OCOR 5 wherein y is 1 or 2, or a --SR 5 , --OCOR 5 or --OCOCH═CHCOOR 5 , R 5 having 1 to 18 carbon atoms; and (b) an organotin sulfide having the formula (R Sn S 1 .5) n or R 2 Sn S, wherein n is 2 to 10 and R is an alkyl group having 1 to 18 carbon atoms or the group: ##STR10## wherein R 1 , R 2 , R 3 and R 4 are as above defined under (a).
Claim 3
Dependent Claim
26 words
A synergistic stabilizer composition as claimed in claim 1 which is prepared by admixing two or more organotin compounds selected from the groups (a) and (b).
Claim 4
Dependent Claim
58 words
A composition adapted to improve the heat and light stability of a polyvinyl resin comprising a mixture of CH 3 OCOCH 2 CH 2 --Sn--(S--CH 2 COOC 8 H 17 ) 3 or (CH 3 OCOCH 2 H 2 ) 2 --Sn(SCH 2 COOC 8 H 17 ) 2 and an organotin sulfide, as defined in claim 1.
Claim 5
Dependent Claim
33 words
The composition of claim 3 wherein the organotin sulfide is (C 4 H 9 Sn S 1 .5) n and n is 2 to 10, or (C 4 H 9 ) 2 SnS.
Claim 6
Dependent Claim
12 words
A polyvinyl resin stabilized with the synergistic stabilizer composition of claim 1.
Claim 7
Dependent Claim
27 words
A resin as claimed in claim 5 which contains from 0.5 to 3% by weight of the synergistic stabilizer composition based on the weight of the resin.
Claim 8
Dependent Claim
63 words
A composition adapted to improve the heat and light stability of a polyvinyl resin comprising a mixture of C 4 H 9 OCOCH 2 CH 2 --Sn--S-CH 2 COOC 8 H 17 ) 3 or (C 4 H 9 OCOCH 2 CH 2 ) 2 --Sn(SCH 2 COOC 8 H 17 ) 2 , and an organotin sulfide, as defined in claim 1.
Claim 9
Dependent Claim
24 words
The composition of claim 7 wherein the organotin sulfide is (C 4 H 9 Sns 1 .5) n and n = 2 to 10.
Claim 10
Dependent Claim
18 words
The composition of claim 7 wherein the organotin sulfide is (C 4 H 9 ) 2 Sn S.
Claim 11
Dependent Claim
29 words
The composition of claim 7 wherein the organotin sulfide is (C 4 H 9 OCOCH 2 CH 2 Sn S 1 .5) n and n = 2 to 10.
Claim 12
Dependent Claim
22 words
The composition of claim 7 wherein the organotin sulfide is (C 4 H 9 OCOCH 2 CH 2 ) 2 Sn S.
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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) | 1982-01-15 | 1982-07-17 | 1983-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-15 | 1986-07-17 | 1987-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-15 | 1990-07-17 | 1991-01-16 | $7700.00 | Window Closed / Lapsed |