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US4357434A
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Stabilized halogen-containing resin compositions
Assignee: Ajinomoto Co Inc
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Filing: 1981-03-16
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Granted: 1982-11-02
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Expires: 2001-03-16
Abstract
Abstract Stabilized halogen-containing resin compositions comprising a halogen-containing resin, at least one organo tetravelent tin stabilizer selected from the group consisting of an alkyl tin laurate and an alkyl tin maleate and as a stabilizer assistant a hydroxymercaptan compound having the following the general formula ##STR1## wherein R 1 , R 2 , R 3 and R 4 are the same or different and are each hydrogen atom, substituted or unsubstituted alkyl, alkenyl, aryl, cycloalkyl, hydroxyalkyl, alkoxyalkyl, carboalkoxyalkyl, epoxyalkyl or epoxyalkenyl, with the proviso R 1 and R 3 may form a ring together.
Inventors
- 👤 Takeshi Miyoshi
- 👤 Koji Takeuchi
- 👤 Tatsuo Nukui
- 👤 Hidetaka Oshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:02
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/56; C08K5/57
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
47 words
A halogen-containing resin composition comprising a halogen-containing resin and organo tetravalent tin stabilizer selected from the group consisting of alkyl tin laurates and alkyl tin maleates and a stabilizer assistant being one of the hydroxymercaptan compounds having the following structural formula No. 1 to No. 5. ##STR13##
Claim 2
Dependent Claim
47 words
A halogen-containing resin composition comprising a halogen-containing resin and organo tetravalent tin stabilizer selected from the group consisting of alkyl tin laurates and alkyl tin maleates and a stabilizer assistant being one of the hydroxymercaptan compounds having the following structural formula No. 1 to No. 5. ##STR13##
Claim 3
Dependent Claim
57 words
A composition according to claim 1, wherein the stabilizer is present in an amount of from 0.5 to 5.0 parts by weight per 100 parts by weight of the halogen-containing resin and the stabilizer assistant is present in an amount of from 0.01 to 5.0 parts by weight per 100 parts by weight of the halogen-containing resin.
Claim 4
Dependent Claim
37 words
A composition according to claim 1, wherein said organo alkyl tin laurate contains 1 to 8 carbon atoms in the alkyl group and the alkyl tin maleate contains 1 to 8 carbon atoms in the alkyl group.
Claim 5
Dependent Claim
31 words
A composition according to claim 1 or 3, wherein said organo tetravalent tin stabilizer is dimethyl tin dilaurate, dibutyl tin dilaurate, dioctyl tin dilaurate, dibutyl tin maleate or dimethyl tin dioctylmaleate.
Claim 6
Dependent Claim
17 words
A composition according to claim 1, wherein said stabilizer assistant is 2,2-bis[4-(2-hydroxy-3-mercaptopropoxy)phenyl]propane having the structural formula ##STR14##
Claim 7
Dependent Claim
35 words
A composition according to claim 1, wherein the halogen-containing resin is polyvinyl chloride, polyvinylidene chloride, a copolymer of vinyl chloride or vinylidene chloride with a copolymerizable unsaturated monomer, a chlorinated polyethylene or a chlorinated polypropylene.
Claim 8
Dependent Claim
26 words
A composition according to claim 5, wherein said organo tetravalent tin stabilizer is dibutyl tin dilaurate, dioctyl tin dilaurate, dibutyl tin maleate, or dioctyl tin maleate.
References Cited (Backward Citations)
US3063963A
Cited
DE2446285A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-01 | 1986-05-03 | 1986-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-01 | 1990-05-03 | 1990-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-01 | 1994-05-03 | 1994-11-02 | $7700.00 | Window Closed / Lapsed |