Abstract: A method for producing functionalized thermoplastic elastomers on the basis of grafting substrates, selected from olefine-block copolymers of composition 80 to 98 mass-% ethylene-/2 to 20 mass-% C3- to C12-olefine units or partially crystalline propylene/ethylene and/or C4- to C12-olefine and/or C4- to C12-diene-copolymers of composition 50 to 98 mass-% propylene-/2 to 50 mass-% C2- and/or C4- to C12-olefine and/or C4- to C12-diene units or cross-linked styrene/olefine/styrene or styrene/olefine-block copolymers, wherein, in a liquid mixing reactor per 100 mass parts of particular grafting substrate—0.1 to 15 mass parts of at least one functional monomer from the series of functional groups comprising ?,?-ethylenic unsaturated compounds or 0.1 to 15 mass parts of a monomer mixture comprising at least one of said functional monomers and—0.01 to 10 mass parts of at least one initiator forming free radicals having a 1-hour half-life temperature (THwz/1h) between 50 and 200° C.

Abstract: A method for producing functionalized thermoplastic elastomers on the basis of grafting substrates, selected from olefine-block copolymers of composition 80 to 98 mass-% ethylene-/2 to 20 mass-% C3- to C-12-olefine units or partially crystalline propylene/ethylene and/or C4- to C-12-olefine and/or C4- to C12-diene-copolymers of composition 50 to 98 mass-% propylene-/2 to 50 mass-% C2,- and/or C4- to C12-olefine and/or C4- to C12-diene units or cross-linked styrene/define/styrene or styrene/olefine-block copolymers, wherein, in a liquid mixing reactor per 100 mass parts of particular grafting substrate—0.1 to 15 mass parts of at least one functional monomer from the series of functional groups comprising ?,?-ethylenic unsaturated compounds or 0.1 to 15 mass parts of a monomer mixture comprising at least one of said functional monomers and—0.01 to 10 mass parts of at least one initiator forming free radicals having a 1-hour half-life temperature (THwz/1h) between 50 and 200° C.

Abstract: Procedure for the manufacture of carboxylated ethylene polymer blends, in which in a 1st step, in a fluid mixing reactor, to 100 pbw of a particulate ethylene polymer—chosen from among ethylene homopolymers (HDPE, LDPE) and/or linear ethylene copolymers with 2 to ?20 wt.-% polymerized-in C3-12-olefin units (LLDPE, EOP), with a melt-flow rate MFR (190° C./2.16 kg)?20 g/10 min—are added 0.05-15 pbw of a ?,?-ethylenically unsaturated mono and/or dicarboxylic acid or its anhydride (carboxyl monomer), or a monomer mixture containing at least one carboxyl monomer and 0.01-10 pbw of a radical initiator or initiator mixture, and graft-polymerizing at reaction temperatures of 30-120° C., over a reaction time of 5-120 min and subsequently, in a 2nd step, reacting a mixture continuously fed into a reaction extruder of 100 pbw of the modified ethylene polymer obtained in the 1st solid phase step, 150-4,000 pbw of an ethylene polymer or polymer blend with a melt flow rate MFR (190° C., 2.