US3764571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organotin stabilizer systems
Assignee: Synthetic Products Co
•
Filing: 1971-02-18
•
Granted: 1973-10-09
•
Expires: 1991-02-18
Abstract
Abstract A novel composition which comprises: A. AN ORGANOTIN SULFUR-CONTAINING COMPOUND, FOR EXAMPLE, ORGANOTIN MERCAPTIDES, ORGANOTIN MERCAPTOACIDS, ORGANOTIN MERCAPTOACID ESTERS, ORGANOTIN SULFIDES, ORGANO THIOSTANNOIC ACIDS AND THE LIKE, B. AN ALKALI OR ALKALINE EARTH METAL SALT OF AN ORGANIC ACID, SUCH AS Group I or Group II-a Periodic Table metal salts of aliphatic monocarboxylic acids, and C. AN ALKALI OR ALKALINE EARTH METAL BASE SUCH AS 1) Group I or Group II-a Periodic Table metal oxides, hydroxides or carbonates and 2) organic over-based complexes of Group I or II-a metal bases. These novel compositions have been found to extend the heat stability of vinyl halide resins in a remarkably effective manner even when used in total proportions and ratios of ingredients varying over a broad range.
Inventors
- 👤 T Jennings
- 👤 C Fletcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:15
CPC Classifications
C; C07; C07C; C07C63/00; C07C63/33; C07C63/337; C07C63/34; C07C63/36; C07C51/00; C07C51/41; C07C51/414; C07C53/00; C07C53/126; C07C53/128; C07C57/00; C07C57/02; C07C57/03; C07C57/12; C07C63/04; C07C63/06; C07C63/08; C07C63/14; C07C63/15; C07C63/16; C07C63/20; C08; C08K; C08K13/00; C08K13/02
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
34 words
The composition of claim 1 wherein said organotin sulfur-containing compound is selected from the group consisting of an organotin mercaptide, organotin mercaptoacid, organotin mercaptoacid ester, organotin sulfide, and organo thiostannoic acid, and mixtures thereof.
Claim 2
Dependent Claim
14 words
The composition of claim 1 wherein said metal salt is the carboxylic acid salt.
Claim 3
Dependent Claim
12 words
The composition of claim 3 wherein said acid is a fatty acid.
Claim 4
Dependent Claim
15 words
The composition of claim 1 wherein said acid contains about C6 - C54 carbon atoms.
Claim 5
Dependent Claim
21 words
The composition of claim 3 wherein said acid is an aliphatic monocarboxylic acid which contains about C8 - C32 carbon atoms.
Claim 6
Dependent Claim
34 words
The composition of claim 1 wherein said metal base of said organic complex is selected from the group consisting of an oxide, hydroxide, carbonate, bicarbonate, thiocarbonate, sulfide, bisulfide, sulfite or bisulfite and mixtures thereof.
Claim 7
Dependent Claim
59 words
The composition of claim 7 wherein said organic complex is derivable from the reaction of an acidic organic material selected from the group consisting of a carboxylic acid, thiocarboxylic acid, sulfonic acid, organic phosphorous acid, phenols, substituted phenols, and alkali or alkaline salts of such acids or phenols, and mixtures thereof, with a stoichiometric excess of said metal base.
Claim 8
Dependent Claim
30 words
A vinyl halide resin composition which comprises a vinyl halide resin and, as a heat stabilizer, an effective amount of a composition consisting essentially of, an organotin sulfur-containing compound having
Claim 9
Dependent Claim
34 words
The composition of claim 9 wherein said organotin sulfur-containing compound is selected from the group consisting of an organotin mercaptide, organotin mercaptoacid, organotin mercaptoacid ester, organotin sulfide and organo thiostannoic acid, and mixtures thereof.
Claim 10
Dependent Claim
14 words
The compositin of claim 9 wherein said metal salt is the carboxylic acid salt.
Claim 11
Dependent Claim
12 words
The composition of claim 11 wherein said acid is a fatty acid.
Claim 12
Dependent Claim
15 words
The composition of claim 9 wherein said acid contains about C6 - C54 carbon atoms.
Claim 13
Dependent Claim
34 words
The composition of claim 9 wherein said metal base of said organic complex is selected from the group consisting of an oxide, hydroxide, carbonate, bicarbonate, thiocarbonate, sulfide, bisulfide, sulfite, or bisulfite and mixtures thereof.
Claim 14
Dependent Claim
59 words
The composition of claim 14 wherein said organic complex is derivable from the reaction of an acidic organic material selected from the group consisting of a carboxylic acid, thiocarboxylic acid, sulfonic acid, organic phosphorous acid, phenols, substituted phenols, and alkali or alkaline salts of such acids or phenols, and mixtures thereof, with a stoichiometric excess of said metal base.
Claim 15
Dependent Claim
16 words
The composition of claim 1 wherein said components are present in an approximate ratio of 1:1:1.
Claim 16
Dependent Claim
38 words
The composition of claim 9 wherein said effective amount is on the order of about 0.5 to about 3 parts by weight per 100 parts resin and the relative amounts are present in an approximate ratio of 1:1:1.
Claim 17
Dependent Claim
25 words
The composition of claim 9 wherein said effective amount is on the order of 0.05 to about 10 parts by weight per 100 parts resin.
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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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |