SKYBON ES-370US High molecular weight and low Tg polyester resin for lithium battery film, insulating film

Products Description
SKYBON® ES-370US is a polyurethane with high molecular weight and low glass transition temperature (Tg) Modified polyester with extra hydrolysis resistance.
This product is suitable for adhesives with excellent flexibility and adhesion on various substrates. Compared with traditional low Tg polyesters, ES-370US exhibits extremely high hydrolysis resistance under high temperature and high humidity conditions, even under hot water immersion conditions. Based on this super hydrolysis resistance, this product is strongly recommended for special adhesives that require long-term moisture and heat resistance, such as aluminum-plastic films for lithium batteries, insulating films, and special metal laminations.
SKYBON® ES-370US can be formulated with other medium to high Tg solventborne polyesters to control tack and/or cohesive strength.

Features
Excellent flexibility and adhesion based on high molecular weight and low Tg.
– High bonding strength with PA, PET, aluminum substrates
-Excellent hydrolysis resistance at high temperature
-Deep drawing
– Contains -OH, -NH2 functional groups

Products Parameters

Description of experimental materials:

-Aluminum foil: DI Dong il (aluminum-plastic film grade) – Nylon film: Hyosung (BC 11 grade for aluminum plastic film)

-Curing agent: Hardening of A-Kyong agent (AK-75; HDI trimer, TMP adduct)

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Erichsen test tensile properties