USE OF ARYL DINITRILE OXIDES IN ADHESIVE COMPOSITION
The invention relates to the use of an adhesive composition between a vulcanized rubber part and an uncured or prevulcanized or vulcanized rubber part, based on at least one highly unsaturated elastomer chosen from the group formed by natural rubber, polyisoprene, polybutadiene, styrene-butadiene, styrene-isoprene and butadiene-isoprene copolymers and styrene-butadiene-isoprene terpolymers, an aliphatic solvent and a “curing” system comprising at least one stable aryl dinitrile oxide compound.
1 . A method for the use of an adhesive composition between a vulcanized rubber part and an uncured or prevulcanized or vulcanized rubber part, based on at least one highly unsaturated elastomer chosen from the group formed by natural rubber, polyisoprene, polybutadiene, styrene-butadiene, styrene-isoprene and butadiene-isoprene copolymers and styrene-butadiene-isoprene terpolymers, an aliphatic solvent and a “curing” system comprising at least one stable aryl dinitrile oxide compound.
2 . The method of use according to claim 1 , wherein the stable aryl dinitrile oxide compound is mesitylene dinitrile oxide (MDNO).
3 . The method of use according to claim 1 , wherein the stable aryl dinitrile oxide compound is bismesitylene dinitrile oxide (BMNO).
4 . The method of use according to claim 1 , wherein the content of stable aryl dinitrile oxide compound is between 1 and 20 phr, parts by weight per hundred parts of elastomer.
5 . The method of use according to claim 4 , wherein the content of stable aryl dinitrile oxide compound is between 2 and 15 phr.
6 . The method of use according to claim 5 , wherein the content of stable aryl dinitrile oxide compound is between 5 and 10 phr.
7 . The method of use according to claim 1 , wherein the operating temperature is below 60° C.
8 . The method of use according to claim 7 , wherein the operating temperature is between 18° C. and 45° C.
9 . The method of use according to claim 1 , wherein the vulcanized rubber part is constituted by a portion of a tyre.
10 . A method of use according to claim 9 , wherein the portion of the tyre which constitutes the vulcanized rubber part is the carcass of said tyre.
11 . A method of use according to claim 9 , wherein the portion of the tyre which constitutes the vulcanized rubber part is the tread of said tyre.
12 . A method of use according to claim 9 , wherein the portion of the tyre which constitutes the vulcanized rubber part is a sidewall of said tyre.
13 . A method of use according to claim 9 , wherein the portion of the tyre which constitutes the vulcanized rubber part is the inner liner of said tyre.
14 . A method of use according to claim 9 , wherein the tyre is a heavy vehicle tyre.
15 . A method of use according to claim 9 , wherein the tyre is a civil-engineering vehicle tyre.
16 . A method of use according to claim 9 , wherein the tyre is an aircraft tyre.
17 . A method of use according to claim 9 , wherein the uncured or vulcanized or prevulcanized rubber part is a constituent of a tyre repair patch.
18 . A tyre repair patch comprising at least one uncured or prevulcanized or vulcanized rubber part and an adhesive composition based on at least one highly unsaturated elastomer chosen from the group formed by natural rubber, polyisoprene, polybutadiene, styrene-butadiene, styrene-isoprene and butadiene-isoprene copolymers and styrene-butadiene-isoprene terpolymers, an aliphatic solvent and a “curing” system comprising at least one stable aryl dinitrile oxide compound.
19 . A tyre repair patch according to claim 18 , wherein the stable aryl dinitrile oxide compound is mesitylene dinitrile oxide (MDNO).
20 . A tyre repair patch according to claim 18 , wherein the stable aryl dinitrile oxide compound is BMNO.
21 . A tyre comprising at least one composition based on at least one highly unsaturated elastomer chosen from the group formed by natural rubber, polyisoprene, polybutadiene, styrene-butadiene, styrene-isoprene and butadiene-isoprene copolymers and styrene-butadiene-isoprene terpolymers, an aliphatic solvent and a “curing” system comprising at least one stable aryl dinitrile oxide compound.
22 . A tyre according to claim 21 , wherein the stable aryl dinitrile oxide compound is mesitylene dinitrile oxide (MDNO).
23 . A tyre according to claim 21 , wherein the stable aryl dinitrile oxide compound is BMNO.