DEGRADABLE POLYMER BLENDS OF LONG-CHAIN ALIPHATIC POLYCONDENSATES

• Main Authors: ECK, Marcel, MECKING, Stefan, HÄUSSLER, Manuel
• Format: Patent
• Language: English; French; German
• Published: 13.09.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

In a first aspect, the present invention relates to a polymer blend, comprising: (i) 1 to 99.9 weight-% of a first polyethylene-like polymer having a repetition unit (I) within its structure [-X1-(CH2)a-X2-(CH2)b-] (I) wherein X1 is selected from the group consisting of -C(=O)-O- group, -O-C(=O)-group, -O-C(=O)-O-group, -O-P(=O)(H)-O-group and -O-CH2-O-group; X2 is selected from the group consisting of -C(=O)-O-group, -O-C(=O)-group, -O-C(=O)- O-group, -O-P(=O)(H)-O-group and -O-CH2-O-group; a, b are each an integer independently selected from the range from 2 to 200 wherein the first polyethylene-like polymer has in the range of from 89 to 99.5 mol% of methylene groups; and (ii) 0.1 to 99 weight-% of a second polymer; wherein the sum of the weight-% of (i) and (ii) amounts to 100 weight-%. A second aspect of the invention relates to the use of a polymer blend according to the first aspect as a material, preferably for a consumer article, preferably selected from the group consisting of a cup, a plate, cutlery, a sanitary article, a packaging article, and a film.