Thermo-adherent composition for coil wires
A thermo-adherent composition for coil wires includes a polyester type thermoplastic polyurethane.
1 . A thermo-adherent composition for coil wires comprising:
a polyester type thermoplastic polyurethane.
2 . The thermo-adherent composition claimed in claim 1 , wherein the modulus of conservation of said thermoplastic polyurethane is greater than 1 000 MPa at 25° C.
3 . The thermo-adherent composition claimed in claim 1 , wherein the modulus of conservation of said thermoplastic polyurethane is greater than 500 MPa at 100° C.
4 . The thermo-adherent composition claimed in claim 1 , wherein the modulus of conservation of said thermoplastic polyurethane is greater than 100 MPa at 150° C.
5 . The thermo-adherent composition claimed in claim 1 , wherein the bonding temperature of said thermoplastic polyurethane is from 150 to 250° C.
6 . The thermo-adherent composition claimed in claim 1 , wherein the viscosity of said thermoplastic polyurethane in the molten state is less than 100 Pa·s at 300° C.
7 . The thermo-adherent composition claimed in claim 1 , wherein said thermoplastic polyurethane has a crystalline phase.
8 . The thermo-adherent composition claimed in claim 1 , wherein said composition includes at least one inorganic charge.
9 . The thermo-adherent composition claimed in claim 1 , wherein said composition includes at least one other polymer.
10 . A coil wire including a conductive element inside an insulative element covered by an external thermo-adherent layer, said thermo-adherent layer based on a thermo-adherent composition as claimed in claim 1 .
11 . The thermo-adherent composition claimed in claim 1 , wherein the modulus of conservation of said thermoplastic polyurethane is greater than 2 000 MPa at 25° C.
12 . The thermo-adherent composition claimed in claim 1 , wherein the modulus of conservation of said thermoplastic polyurethane is greater than 1000 MPa at 100° C.
13 . The thermo-adherent composition claimed in claim 1 , wherein the modulus of conservation of said thermoplastic polyurethane is greater than 200 MPa at 150° C.
14 . The thermo-adherent composition claimed in claim 1 , wherein the bonding temperature of said thermoplastic polyurethane is from 150 to 200° C.
15 . The thermo-adherent composition claimed in claim 1 , wherein the viscosity of said thermoplastic polyurethane in the molten state is less than 1 Pa·s at 300° C.