TUFTEC™, S.O.E.™
(SEBS)

TUFTEC™ and S.O.E.™ are high-performance hydrogenated styrene-based thermoplastic elastomers (SEBS) that embody Asahi Kasei's technological prowess. They are widely used as modifiers and compatibilizers for a variety of resins.

TUFTEC™, S.O.E.™

Contributing to the Solution of Diverse Challenges

We offer a wide range of product lines, including the H Series for TUFTEC™ that excels as a modifier and compatibilizer, the M Series for modified types, the P Series that boasts superior low-temperature performance, processability, and high resilience, and the S.O.E.™ known for its excellent abrasion resistance and shock absorption.

Details of Asahi Kasei's SEBS

Asahi Kasei's SEBS Series Lineup

TUFTEC™ and S.O.E.™ are hydrogenated (hydrogen added) to the double bonds in the polybutadiene that forms the soft block. We offer a full range of fully hydrogenated TUFTEC™ H Series, modified M Series, selectively hydrogenated P Series, and S.O.E.™ with copolymer-type soft blocks.

TUFTEC™ H Series
Fully Hydrogenated Type Suitable for a Wide Range of Applications, Including Modifiers and Compatibilizers
Fully hydrogenated SEBS with excellent weather resistance and heat stability, suitable for a wide range of applications as modifiers and compatibilizers.
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TUFTEC™ M Series
Modified Type with Excellent Compatibility with Polar Resins and Adhesion to Metals
A specialized SEBS with modification. It exhibits excellent compatibility with various polar resins and adhesion to metals, making it suitable for use as modifiers, compatibilizers, and adhesives.
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TUFTEC™ P Series
Selectively Hydrogenated Type with Superior Low-Temperature Performance, Processability, and High Resilience
Styrene-based thermoplastic elastomer (SBBS) with partial hydrogenation. It boasts excellent low-temperature performance, processability, and crosslinking properties, and is used to enhance impact resistance and provide high resilience.
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S.O.E.™
Unique SEBS with Excellent Abrasion Resistance and Shock Absorption
Special SEBS produced with Asahi Kasei's proprietary method. It boasts superior damping performance, shock absorption, and abrasion resistance, making it suitable for a wide range of applications.
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Asahi Kasei's SEBS Offers a Wide Range of Low to Medium Molecular Weight Grades, from Standard to Unique

Asahi Kasei's SEBS boasts a wide range of low to medium molecular weight grades with exceptional functionality and processability as its strengths. TUFTEC™ features three series that utilize hydrogenation rate control and modification techniques. Additionally, we offer a diverse selection of products, ranging from flexible low styrene grades to rigid high styrene grades.

S.O.E.™ is a unique material that exhibits flexibility despite its high styrene content. It excels in stress relaxation and offers a pleasant tactile feel similar to soft PVC. We propose the optimal grade that best suits your application and desired properties.

Grade Map Based on Molecular Weight and Styrene Content for TUFTEC™ and S.O.E.™

SEBS Achieves Superior Weather Resistance and Heat Stability Through Hydrogenation

Hydrogenated styrene-based thermoplastic elastomer SEBS is composed of rigid blocks (S) derived from styrene and soft blocks (EB) derived from butadiene. By hydrogenating the butadiene chain (B) that forms the soft block, double bonds are transformed into single bonds. This hydrogenation process enables SEBS to exhibit outstanding performance unattainable by SBS.

Illustration of SEBS

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