US4569958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scorch-inhibited elastomeric composition
Assignee: Zeon Corp
•
Filing: 1985-07-02
•
Granted: 1986-02-11
•
Expires: 2005-07-02
Abstract
Abstract An elastomeric composition whose scorch is inhibited comprises [I] a halogen-containing elastomer, [II] a di- or tri-thiol-s-triazine compound and [III] at least one polycarboxylic acid compound selected from the group consisting of (A) a polycarboxylic acid having at least two carboxyl groups capable of forming an acid anhydride group in the molecule and (B) a halogen-substituted polycarboxylic acid anhydride.
Inventors
- 👤 Akio Maeda
- 👤 Mitsuyoshi Aonuma
- 👤 Masahiko Muranishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:44
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/092; C08K5/15; C08K5/151; C08K5/1535; C08K5/1539; C08K5/36; C08K5/37
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
76 words
An elastomer composition whose scorch is inhibited, said composition comprising (I) a halogen-containing elastomer selected from the group consisting of polymers of epihalohydrins, epihalohydrin rubbers, and halogen-containing acrylic rubbers, (II) a di- or tri-thiol-s-triazine compound and (III) at least one polycarboxylic acid compound selected from the group consisting of (A) a polycarboxylic acid having at least two carboxyl groups capable of forming an acid anhydride group in the molecule and (B) a halogen-substituting polycarboxylic acid anhydride.
Claim 2
Dependent Claim
76 words
An elastomer composition whose scorch is inhibited, said composition comprising (I) a halogen-containing elastomer selected from the group consisting of polymers of epihalohydrins, epihalohydrin rubbers, and halogen-containing acrylic rubbers, (II) a di- or tri-thiol-s-triazine compound and (III) at least one polycarboxylic acid compound selected from the group consisting of (A) a polycarboxylic acid having at least two carboxyl groups capable of forming an acid anhydride group in the molecule and (B) a halogen-substituting polycarboxylic acid anhydride.
Claim 3
Dependent Claim
89 words
The composition of claim 1 wherein the di- or tri-thiol-s-triazine compound (II) is a compound represented by the general formula ##STR2## wherein X and Y each represent hydrogen, an alkali metal or an alkaline earth metal; R represents OR 1 , SR 1 or NR 1 R 2 ; and each of R 1 and R 2 represents hydrogen or a hydrocarbon group having 1 to 20 carbon atoms which may be substituted by a hydroxyl group, or NR 1 R 2 may be morpholino, piperidyl or pipecolyl group.
Claim 4
Dependent Claim
31 words
The composition of claim 1 wherein the polycarboxylic acid compound [III] is selected from the group consisting of aliphatic compounds having up to 20 carbon atoms, aromatic compounds and alicyclic compounds.
Claim 5
Dependent Claim
31 words
The composition of claim 1 wherein the amount of the di- or tri-thiol-s-triazine compound [II] is 0.1 to 10 parts by weight per 100 parts by weight of the halogen-containing elastomer.
Claim 6
Dependent Claim
30 words
The composition of claim 1 wherein the content of the polycarboxylic acid compound [III] is 0.1 to 10 parts by weight per 100 parts by weight of the halogen-containing elastomer.
Claim 7
Dependent Claim
45 words
The composition of claim 1 wherein the di- or tri-thiol-s-triazine compound [II] is a compound selected from the group consisting of 2,4,6-trimercapto-s-triazine, 2-methoxy-4,6-dithiol-s-triazine, 2-ethoxy-4,6-dithiol-s-triazine, 2-phenoxy-4,6-dithiol-s-triazine, 2-butylamino-4,6-dithiol-s-triazine, 2-anilino-4,6-dithiol-s-trizine, 2-naphthylamino-4,6-dithiol-s-triazine, 2-dimethylamino-4,6-dithiol-s-triazine, 2-diethylamino-4,6-dithiol-s-triazine, 2-dibutylamino-4,6-dithiol-s-triazine, 2-diphenylamino-4,6-dithiol-s-triazine, 2-dicyclohexylamino-4,6-dithiol-s-triazine, 2-morpholino-4,6-dithiol-s-triazine, 2-piperidyl-4,6-dithiol-s-triazine, and the sodium, potassium, calcium, magnesium and barium salts thereof.
Claim 8
Dependent Claim
16 words
The composition of claim 1 wherein the polycarboxylic acid is the halogen-substituted polycarboxylic acid anhydride (B).
Claim 9
Dependent Claim
13 words
The composition of claim 1 wherein the component [II] is a tri-thiol-s-triazine compound.
Claim 10
Dependent Claim
11 words
The composition of claim 8 wherein the tri-thiol-s-triazine compound is 2,4,6-trimercapto-s-triazine.
Claim 11
Dependent Claim
52 words
The composition of claim 1 wherein the polycarboxylic acid compound is selected from the group consisting of oxalic acid, malonic acid, succinic acid, glutaric acid, ethyl-malonic acid, malic acid, citric acid, propane-1,2,3-tricarboxylic acid, maleic acid, methylmaleic acid, o-phthalic acid, 3-nitrophthalic acid, homophthalic acid, trimellitic acid, pyromellitic acid, tetrachloro-o-phthalic acid and tetrabromo-o-phthalic acid.
Claim 12
Dependent Claim
27 words
The composition of claim 7 wherein the halogen-substituted polycarboxylic acid anhydride is selected from the group consisting of chloromaleic anhydride, dichloromaleic anhydride, tetrachlorophthalic anhydride and tetrabromo-phthalic anhydride.
References Cited (Backward Citations)
US2213954A
Cited
US4222915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-10 | 1989-08-12 | 1990-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-10 | 1993-08-12 | 1994-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-10 | 1997-08-12 | 1998-02-11 | $7700.00 | Window Closed / Lapsed |