Lotader® AX resins are widely used as reactive agents to improve the processability as well as the impact resistance of thermoplastic polyesters (PET/PBT), polyphenylene sulfide (PPS) compounds. They also increase the rutting resistance of polymeric modified road pavements. Two new grades, Lotader® AX8750 and AX8930 copolymers, have been designed to complete Arkema’s range of impact modifiers and/or compatibilizers, which enables processors to play, depending on the dosage, on various properties of the compounds: fluidity in processing, impact resistance and mechanical strength.
The Lotader® resins are a unique range of reactive ethylene copolymers, functionalized with anhydride or epoxide groups. These products combine the processability of low density polyethylene and the reactivity necessary for compatibility with engineering resins.
The Lotader® AX terpolymers meet the need to flexibilize engineering plastics such as polyamides, thermoplastic polyesters, and polysulfones.
Lotader® AX8750 and AX8930 new grades have been formulated to speed up the manufacturing productivity of these compounds while maintaining excellent impact resistance and mechanical properties.
Lotader® AX8750 is a brand new chemistry since this new terpolymer is made of ethylene, butyl acrylate and glycidyl methacrylate. Thanks to its high fluidity, it opens up new opportunities in terms of processability of the compounds.
Its low temperature performance targets frozen food packaging and automotive compounds.
Lotader® AX8930 reactive terpolymer has been designed to achieve good impact resistance while maintaining fluidity. It is therefore recommended for applications where the final compounds needs to be injection molded.
Lotader® AX8930 and AX8750 terpolymers complete Arkema’s range of reactive terpolymers, Lotader® AX8900, AX8820 and AX8840 resins, already used for the modification of polymers such as thermoplastic polyesters (PET/PBT), polyphenylene sulfide (PPS), as well as for bitumen modification.
|
|
Glycidyl methacrylate content (w%) |
Acrylate content (w%) |
Melt Flow Index (g/10 min) |
Melting point (°C) |
|
AX8750 |
4 - 6 |
24 (BA) |
11 - 13 |
70 - 75 |
|
AX8820 |
4 - 5 |
0 |
1.5 – 2.5 |
105 - 110 |
|
AX8840 |
6 - 8 |
0 |
4 - 6 |
104 - 108 |
|
AX8900 |
7 - 9 |
24 (MA) |
4 - 8 |
63 - 67 |
|
AX8930 |
2 - 4 |
24 (MA) |
6 - 8 |
63 - 67 |
Lotader® AX8750 and AX8930 copolymers are now available commercially globally through Arkema’s local subsidiary and distribution network. They complete Arkema’s impact modifiers portfolio:
- Lotader® 4700 and Lotader® 4720: general impact modification of polyamides
- Lotader® AX8840: general impact modification of PPS
- Lotader® AX8900: general impact modification of PET and PBT
- Lotryl® 35BA40: high fluidity impact modified PBT
- Lotader® / Lotryl®: impact modification of PA and PBT for injection molding
- Orevac® IM300: high fluidity impact modification of polyamides
- Orevac® IM800: high impact modification of polyamides at low temperature
Arkema’s range of Lotader® reactive terpolymers and Lotryl® acrylate copolymers offers a wide scope of solutions for the modification of main engineering plastics, including polyamides (PA6, PA6,6 and PA12), thermoplastic polyesters (PET and PBT), bioplastics (PLA), polyphenylene sulfide (PPS) and polycarbonate (PC).