What are Kraton SBCs?

Styrenic Block Copolymers (SBC) Kraton styrenic block copolymers (SBC) are a class of thermoplastic elastomers – a material that processes like plastic but behaves like rubber. This is largely due to the physical crosslinks inherent in the block copolymer structure, which are reversible when heated or dissolved.

What is a block copolymer?

Kraton styrenic block copolymers (SBC) are a class of thermoplastic elastomers – a material that processes like plastic but behaves like rubber. This is largely due to the physical crosslinks inherent in the block copolymer structure, which are reversible when heated or dissolved.

What is the use of Kraton SIS?

Kraton™ SIS and Kraton™ SBS polymers are used in the waistbands, ear tabs and stretch side panels of these applications. The range of elongation and tensile strength allows manufacturers to design products that fit a wide range of body shapes and sizes.

What are SBC copolymers made of?

When the material is stretched, those crosslinks bring it back to its original shape. Made from butadiene, styrene and isoprene raw materials, SBC copolymers have a two-phase structure composed of hard polystyrene endblocks and soft rubber midlocks. This helps make SBC compatible with a wide range of polyolefins, styrenics and resins.