B PERFORMING OPERATIONS; TRANSPORTING
B29 WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
66/00 General aspects of processes or apparatus for joining preformed parts
B29C66/70 characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
B29C66/73 characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
B29C66/739 characterised by the material of the parts to be joined being a thermoplastic or a thermoset
B29C66/7392 characterised by the material of at least one of the parts being a thermoplastic
B29C66/73921 characterised by the materials of both parts being thermoplastics