Frequently asked questions

Please find below the introductory answers to frequently asked questions about Lotryl® product line. Click on a subject heading below to view questions and answers relating to your selection. Should you have any further questions, please contact us.

Which factors determine the cold temperature properties of SK's Functional Polymer?

The flexibility and the impact strength at low temperature increase with higher amounts of comonomer (methyl, ethyl, or butyl acrylate; vinyl acetate) content.
The glass transition temperature (Tg) of the specific acrylate present in the Lotader® resin or Lotryl® resin also influences the low temperature properties. Butyl acrylate has a lower Tg than methyl acrylate or ethyl acrylate and therefore has better cold temperature properties:

Tg (G’’)
Methyl Acrylate: -30°C
Ethyl Acrylate: -35°C
Butyl Acrylate: -45°C

Which grades are used as compatibilizers?

For thermoplastics polyesters – PBT, PBT alloys
High fluidity: 5-10%: Lotader®  AX8900 + Lotryl® 35BA40
Super toughness: (+23°C): 20-25%: Lotader®  AX8900/ Lotryl®  29MA03
Multipurpose toughness: 5-15%: Lotader®  AX8900/ Lotryl® 30BA02  / 29MA03


Thermoplastics polyesters PET:
High fluidity: 5-10%: Lotader®  AX8900/ Lotryl® 35BA40

Super toughness: 20-25%: Lotader®  AX8900/ Lotryl®  29MA03
Multi purpose toughness: 5-15%: Lotader®  AX8900/ Lotryl®  30BA02 /  29MA03


ABS PC/ABS alloys:
Multi purpose toughness: 10-20%: Lotryl® 30BA02


PS-based compounds:
Glass fibers and Glass beads: mineral fillers: For 30% by weight: carbon black: 2-6%:
Lotryl®  20MA08

Lotryl®  20MA08T