TIRE COMPRISING A MULTILAYER LAMINATED COMPOSITE
A tire comprises an elastomer laminate, said laminate comprising at least two superposed elastomer layers, namely, a first layer, or aromatic polyester-block copolymer (APBC) layer, consisting of a composition based on at least one aromatic polyester-block copolymer (APBC) thermoplastic elastomer, the content of aromatic polyester-block copolymer (APBC) being within a range extending from more than 50 to 100 phr (parts by weight per 100 parts by weight of elastomer) and a second layer, or diene layer, consisting of a composition based on at least one diene elastomer, the content of diene elastomer being in a range extending from more than 50 to 100 phr.
1 - 17 . (canceled)
18 . A tire comprising an elastomer laminate, said laminate comprising at least two superposed elastomer layers:
a first layer, or aromatic polyester-block copolymer layer, consisting of a composition based on at least one aromatic polyester-block copolymer thermoplastic elastomer, the content of aromatic polyester-block copolymer being within a range extending from more than 50 to 100 phr; and
a second layer, or diene layer, consisting of a composition based on at least one diene elastomer, the content of diene elastomer being in a range extending from more than 50 to 100 phr.
19 . The tire according to claim 18 , wherein the elastomer block of the at least one aromatic polyester-block copolymer thermoplastic elastomer of the first layer is selected from the group consisting of polyethers, aliphatic polyesters, polycarbonates and mixtures thereof.
20 . The tire according to claim 19 , wherein the at least one aromatic polyester-block copolymer thermoplastic elastomer of the first layer is selected from the group consisting of copolymers of aromatic polyester, copolymers of polyether and mixtures thereof.
21 . The tire according to claim 20 , wherein the at least one aromatic polyester-block copolymer thermoplastic elastomer of the first layer is selected from the group consisting of copolymers of aromatic polyester, copolymers of aliphatic polyether and mixtures thereof.
22 . The tire according to claim 18 , wherein the number-average molecular weight of the aromatic polyester-block copolymer is between 15,000 and 500,000 g/mol.
23 . The tire according to claim 18 , wherein the at least one aromatic polyester-block copolymer thermoplastic elastomer of the first layer has a glass transition temperature (T g ) which is less than or equal to 25° C.
24 . The tire according to claim 23 , wherein the at least one aromatic polyester-block copolymer thermoplastic elastomer of the first layer has a glass transition temperature (T g ) which is less than or equal to 10° C.
25 . The tire according to claim 18 , wherein the melting point (T m ) of the aromatic polyester-block copolymer is between 140° C. and 210° C.
26 . The tire according to claim 18 , wherein the content of aromatic polyester-block copolymer in the composition of the first layer is within a range extending from 70 to 100 phr.
27 . The tire according to claim 26 , wherein the content of aromatic polyester-block copolymer in the composition of the first layer is within a range extending from 80 to 100 phr.
28 . The tire according to claim 18 , wherein the aromatic polyester-block copolymer is the only elastomer of the first layer.
29 . The tire according to claim 18 , wherein the first layer does not contain a crosslinking system.
30 . The tire according to claim 18 , wherein the diene elastomer of the second layer is selected from the group consisting of essentially unsaturated diene elastomers and mixtures thereof.
31 . The tire according to claim 30 , wherein the diene elastomer of the second layer is selected from the group consisting of homopolymers obtained by polymerization of a conjugated diene monomer having from 4 to 12 carbon atoms, copolymers obtained by copolymerization of one or more conjugated dienes with one another or with one or more vinyl aromatic compounds having from 8 to 20 carbon atoms, and mixtures thereof.
32 . The tire according to claim 31 , wherein the diene elastomer of the second layer is selected from the group consisting of polybutadienes, synthetic polyisoprenes, natural rubber, butadiene copolymers, isoprene copolymers and mixtures thereof.
33 . The tire according to claim 18 , wherein the second layer comprises a reinforcing filler.
34 . The tire according to claim 33 , wherein the reinforcing filler is carbon black, silica, or a combination thereof.
35 . The tire according to claim 34 , wherein the predominant reinforcing filler is carbon black.