Claims
- 1. Fluoroelastomeric compositions containing bromine and/or iodine in the polymeric chain as peroxide cure sites, comprising organic peroxides of the aliphatic, cycloaliphatic or alkylaromatic type, either saturated or unsaturated, and an additive in an amount equal to 0.1-3 parts by weight for 100 parts by weight of fluoroelastomer, comprising at least one compound selected from the group consisting of:
- a) benzothiazole and derivatives thereof of general formula: ##STR34## wherein: X represents H, --SH, ##STR35## b) maleamide derivatives of the formula: ##STR36## wherein A=H, and T represents --OH
- R represents H, alkyl with 1 to 6 carbon atoms, halogen, --NO.sub.2
- c) thiuram derivatives of the formula: ##STR37## wherein Y represents ##STR38## wherein R' represents alkyl with 1 to 4 carbon atoms, d) diphenylguanidine derivatives of formula: ##STR39## wherein R.sup.2 represents H, alkyl with 1 to 6 carbon atoms and e) maleic anhydride, diaryl-formamide and derivatives of diazo and triazo-dicyclodecenes.
- 2. The fluoroelastomeric compositions according to claim 1, wherein the additive is present in amounts equal to 0.2-2 p.h.r.
- 3. The fluoroelastomeric compositions according to claim 1, wherein the additive is selected from the group consisting of b) maleamide derivatives of the formula: ##STR40## wherein A=H, and T represents --OH, R represents H, alkyl with 1 to 6 carbon atoms, halogen, --NO.sub.2 and e) maleic anhydride, diaryl-formamide and derivatives of diazo and triazo-dicyclodecenes.
Priority Claims (1)
Number |
Date |
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22995 A/88 |
Dec 1988 |
ITX |
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Parent Case Info
This is a division of application Ser. No. 08/296,939, filed Aug. 29, 1994, now U.S. Pat. No. 5,399,633 which in turn is a continuation of application Ser. No. 08/026,165, filed Mar. 1, 1993 (abandoned), which in turn is a continuation of application Ser. No. 07/798,176, filed Nov. 26, 1991 (abandoned), which in turn is a continuation of application Ser. No. 07/450,466, filed Dec. 14, 1989 (abandoned).
US Referenced Citations (4)
Foreign Referenced Citations (2)
Number |
Date |
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101930 |
Jul 1984 |
EPX |
4024343 |
Feb 1991 |
DEX |
Non-Patent Literature Citations (3)
Entry |
Encyclopedia of Chemical Technology (1982) 3rd Ed. vol. 20, pp. 390-396. |
Encyclopedia of Chemical Technology (1979) 3rd Ed. vol. 8, p. 506. |
Encyclopedia of Chemical Technology (1980) 3rd Ed. vol. 11, p. 58. |
Divisions (1)
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296939 |
Aug 1994 |
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Continuations (3)
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26165 |
Mar 1993 |
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Parent |
798176 |
Nov 1991 |
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Parent |
450466 |
Dec 1989 |
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