by SpecialChem

KURARAY POVAL™ 4-85

Technical Datasheet | Supplied by Kuraray

KURARAY POVAL™ 4-85 by Kuraray is a partially saponified, water-soluble, polyvinyl alcohol (PVOH). It has uniform chemical structure and shows great adhesion. It provides extension of the open time, influence on the rheology, good remoistening properties and high degree of flatness during storage under fluctuating air humidity. It offers minimal blocking tendency even in high air humidity and fast setting after reactivation. It is used as an adhesive raw material. It can also be used as a protective colloid which can influence the particle size distribution, viscosity, stability to stirring, freeze/thaw stability, pigment compatibility & electrolyte stability. It is recommended for gumming of paper on the reverse side (e.g. postage stamps and labels), envelopes & Jiffy®-type bags. It is suitable for modification of emulsion adhesives. Aqueous solutions of KURARAY POVAL™ 4-85 can be added to polymer emulsions that are already stabilized with polyvinyl alcohol. The shelf life of the product is 12 months.

KURARAY POVAL™ 4-85 Properties

Property

Value & Unit

Test Condition

Test Method

Degree of Hydrolysis

84.2 - 86.2 %

Methanol Content

< 3 %

Non-volatile Content

95 - 100 %

(After 3 hr drying. at 105°C)

DIN 53189

Compatiblity with other products

Find products that are predicted to be compatible with KURARAY POVAL™ 4-85.

This list of compatible products is generated out of estimated HSP values. A practical determination of these HSP values would provide higher certainty.
Learn more about Hansen Solubility Parameters (HSP) and their use in predictive formulation.

Compatible Products

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Compatible Products Based on HSP Distance

HSP distance provides an indication of compatibility. It is based upon the “like seeks like” principle. The smaller the distance between ingredients, the more compatible they are predicted to be.

Learn more about HSP

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