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US4465826A
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Catalyst systems containing an organic disulfide carboxylates and/or organic complex compounds of metals, and basic amines for the oxidative hardening of plastics precursors containing mercapto groups
Assignee: Bayer AG
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Filing: 1982-05-19
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Granted: 1984-08-14
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Expires: 2002-05-19
Abstract
Abstract This invention relates to the use of catalyst systems containing (a) dibenzothiazyl disulphide, (b) carboxylates and/or organic complex compounds of manganese, iron, nickel or cobalt and (c) organic bases selected from the group consisting of guanidines and tertiary amines optionally containing inert substituents, as reaction accelerators for the oxidative hardening of plastics precursors containing mercapto groups.
Inventors
- 👤 Wolfgang Wellner
- 👤 Josef Pedain
- 👤 Hermann Gruber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:31
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/14; C08K; C08K5/00; C08K5/36; C08K5/45; C08K5/46; C08K5/47
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
112 words
A process for accelerating the oxidative hardening of plastics precursors containing mercapto groups which comprises adding a catalyst system containing (a) dibenzothiazyl disulphide of the following formula: ##STR2## (b) about 0.02 to 0.5 parts by weight, based on the weight of component (a), of a carboxylate and/or an organic complex compound of manganese, iron, nickel, or cobalt and additionally (c) about 0.05 to 1.0 part by weight, based on the weight of component (a), of an organic base comprising a member selected from the group consisting of guanidine, guanidines substituted with inert substituents and tertiary amines containing inert substituents, to the plastics precursors containing mercapto groups and oxidatively hardening said plastics precursors.
Claim 2
Dependent Claim
112 words
A process for accelerating the oxidative hardening of plastics precursors containing mercapto groups which comprises adding a catalyst system containing (a) dibenzothiazyl disulphide of the following formula: ##STR2## (b) about 0.02 to 0.5 parts by weight, based on the weight of component (a), of a carboxylate and/or an organic complex compound of manganese, iron, nickel, or cobalt and additionally (c) about 0.05 to 1.0 part by weight, based on the weight of component (a), of an organic base comprising a member selected from the group consisting of guanidine, guanidines substituted with inert substituents and tertiary amines containing inert substituents, to the plastics precursors containing mercapto groups and oxidatively hardening said plastics precursors.
Claim 3
Dependent Claim
51 words
The process of claim 1, wherein the individual catalyst components are incorporated individually into the plastics precursor to be hardened oxidatively or they are incorporated in the form of two individual components wherein the first component is a mixture of components (a) and (c) and the second component is component (b).
Claim 4
Dependent Claim
11 words
The process of claim 1 wherein component (b) is manganese octoate.
Claim 5
Dependent Claim
16 words
The process of claim 1 wherein component (c) is a mixture of diphenylguanidine and hexamethylene tetramine.
Claim 6
Dependent Claim
22 words
The process of claim 1 wherein component (b) is manganese octoate and component (c) is a mixture of diphenylguanidine and hexamethylene tetramine.
Claim 7
Dependent Claim
83 words
A catalyst composition comprising (a) dibenzothiazyl disulphide of the following formula: ##STR3## (b) about 0.02 to 0.5 parts by weight, based on the weight of component (a), of a carboxylate and/or an organic complex compound of manganese, iron, nickel or cobalt and additionally (c) about 0.05 to 1.0 part by weight, based on the weight of component (a), of an organic base comprising a member selected from the group consisting of guanidine, guanidines substituted with inert substituents and tertiary amines containing inert substituents.
Claim 8
Dependent Claim
83 words
A catalyst composition comprising (a) dibenzothiazyl disulphide of the following formula: ##STR3## (b) about 0.02 to 0.5 parts by weight, based on the weight of component (a), of a carboxylate and/or an organic complex compound of manganese, iron, nickel or cobalt and additionally (c) about 0.05 to 1.0 part by weight, based on the weight of component (a), of an organic base comprising a member selected from the group consisting of guanidine, guanidines substituted with inert substituents and tertiary amines containing inert substituents.
Claim 9
Dependent Claim
11 words
The composition of claim 6 wherein component (b) in manganese octoate.
Claim 10
Dependent Claim
16 words
The composition of claim 6 wherein component (c) is a mixture of diphenylguanidine and hexamethylene tetramine.
Claim 11
Dependent Claim
22 words
The composition of claim 6 wherein component (b) is manganese octoate and component (c) is a mixture of diphenylguanidine and hexamethylene tetramine.
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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) | 1987-08-14 | 1988-02-13 | 1988-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-14 | 1992-02-13 | 1992-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-14 | 1996-02-13 | 1996-08-14 | $7700.00 | Window Closed / Lapsed |