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Nippon Shokubai has jointly developed new technologies for recycling superabsorbent polymers (SAP) in used disposable diapers.

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The SAP produced at the Belgium subsidiary NIPPON SHOKUBAI EUROPE N.V. has acquired Biomass Certification from the International Sustainability & Carbon Certification (ISCC) Association.

When SAP come into contact with water, the difference in ionic concentration between the inside of the SAP and water generates osmotic pressure; SAP uses this difference in osmotic pressure to absorb water.The affinity between SAP and water also facilitates the absorption of water; however, this affinity does not significantly affect the water-absorbing ability of SAP to the extent that osmotic pressure does.This water-absorbing ability can also be controlled by the crosslinked structure of SAP.This water absorption principle is the same principle when the liquid being absorbed is an aqueous solution.

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Nippon Shokubai has a lineup of several SAP products, which are roughly sorted into the three types listed below.We are able to suggest the appropriate SAP type and product to suit your requirements. Please freely inquire with us for details.

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Nippon Shokubai’s SAP boasts a top level of share in global markets.About one quarter of the disposable diapers manufactured in the world use SAP produced by Nippon Shokubai.

Superabsorbent polymers (SAP) can absorb several hundred to several thousand times their own weight in water.SAP have a wide range of uses including not only everyday items such as disposable diapers, pet sheets, air fresheners, and disposable hand and body warmers, but also in fields such as medicine and health care, greenery, and civil engineering.Compared to similar water-absorbing materials of pulp and sponges, SAP are highly absorbent and do not easily lose liquid (syneresis) even when pressure is applied.