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US4396552A
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Novel metal mercaptides of esters of β-mercaptoalkanols
Assignee: BASF Corp
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Filing: 1981-01-28
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Granted: 1983-08-02
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Expires: 2001-01-28
Abstract
Abstract Metal mercaptides of the formula ##STR1## wherein Me is a metal, oxometal, alkoxymetal or organo-metal cation from the 1st-5th group of the periodic system, n is 0, 1 or 2, m is an integer from 1 to 4, R 1 is hydrogen, alkyl, acyloxymethyl or alkoxymethyl, R 2 is a sterically hindered phenol group, and R 3 is a monovalent organic radical, are stabilizers for organic materials which are sensitive to heat and oxygen. They can be used in particular as stabilizers for chlorine-containing thermoplasts, for elastomers and for lubricants. Preferred cations are organotin cations.
Inventors
- 👤 Gerrit Knobloch
- 👤 Wolfgang Wehner
- 👤 Hermann O. Wirth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:53
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/20; C10M135/22; C10M135/24; C07; C07F; C07F3/00; C07F3/003; C07F7/00; C07F7/003; C07F7/22; C07F7/226; C09; C09K; C09K15/00; C09K15/04; C09K15/32; C09K15/326; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/084; C10M2227/00; C10M2227/06; C10M2227/065; C10M2227/08; C10M2227/083
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
192 words
A compound of the formula I or Ia ##STR25## wherein m is 0, 1 or 2, and n is an integer from 1 to 4, R 1 is hydrogen, C 1 -C 10 -alkyl, ##STR26## or --CH 2 OR 4 , R 2 is a group of the formula ##STR27## R 3 is C 1 -C 18 -alkyl, CH 3 COCH 2 --, phenyl COCH 2 --, phenyl, C 7 -C 9 -phenylalkyl, vinyl or α-methylvinyl, R 4 is C 1 -C 18 -alkyl, cyclohexyl or benzyl, R 5 and R 6 are C 1 -C 8 -alkyl, Me is the metal cation Na + , K + , Mg 2+ , Ca 2+ , Ba 2+ , Zn 2+ , Cd 2+ , Al 3+ , Sn 4+ , R 7 Sn 3+ , (R 7 ) 2 Sn 2+ , (R 7 ) 3 Sn + , TiO 2+ , (R 8 O) 2 Ti 2+ , ZrO 2+ , (R 8 O) 2 Zr 2+ ,VO 3+ or Sb 3+ , R 7 is C 1-C 12 alkyl or phenyl, and R 8 is C 1 -C 10 alkyl.
Claim 2
Dependent Claim
192 words
A compound of the formula I or Ia ##STR25## wherein m is 0, 1 or 2, and n is an integer from 1 to 4, R 1 is hydrogen, C 1 -C 10 -alkyl, ##STR26## or --CH 2 OR 4 , R 2 is a group of the formula ##STR27## R 3 is C 1 -C 18 -alkyl, CH 3 COCH 2 --, phenyl COCH 2 --, phenyl, C 7 -C 9 -phenylalkyl, vinyl or α-methylvinyl, R 4 is C 1 -C 18 -alkyl, cyclohexyl or benzyl, R 5 and R 6 are C 1 -C 8 -alkyl, Me is the metal cation Na + , K + , Mg 2+ , Ca 2+ , Ba 2+ , Zn 2+ , Cd 2+ , Al 3+ , Sn 4+ , R 7 Sn 3+ , (R 7 ) 2 Sn 2+ , (R 7 ) 3 Sn + , TiO 2+ , (R 8 O) 2 Ti 2+ , ZrO 2+ , (R 8 O) 2 Zr 2+ ,VO 3+ or Sb 3+ , R 7 is C 1-C 12 alkyl or phenyl, and R 8 is C 1 -C 10 alkyl.
Claim 3
Dependent Claim
58 words
A compound of the formula I or Ia according to claim 1, wherein Me is any one of the cations: Mg 2+ , Ca 2+ , Ba 2+ , Zn 2+ , R 7 Sn 3+ , (R 7 ) 2 Sn 2+ or Sb 3+ , and R 7 is C 1 -C 12 -alkyl or phenyl.
Claim 4
Dependent Claim
43 words
A compound of the formula I according to claim 2, wherein Me is any one of the cations: R 7 Sn 3+ , (R 7 ) 2 Sn 2+ or Sb 3+ , and R 7 has the meaning defined in claim 2.
Claim 5
Dependent Claim
29 words
A compound of the formula I according to claim 1, wherein R 1 is hydrogen, m is 2, R 5 is methyl or tert-butyl, and R 6 is tert-butyl.
Claim 6
Dependent Claim
14 words
A compound of any one of the following formulae according to claim 1: ##STR28##
References Cited (Backward Citations)
US3281455A
Cited
DE1948570U
Cited
US4122064A
Cited
US4104292A
Cited
US4126627A
Cited
US4279806A
Cited
US4287118A
Cited
US4303578A
Cited
US4269731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-01 | 1987-01-31 | 1987-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-01 | 1991-01-31 | 1991-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-01 | 1995-01-31 | 1995-08-02 | $7700.00 | Window Closed / Lapsed |