Recommended Grades

Specialty PVOH

Product Name
GOHSENX™ Z

Characteristics
Acetoacetyl modified

Properties
High reactivity, Water resistance, and UV curable

Application
Thermal recording paper | Water-resistant adhesive | Instant adhesive | Emulsifier for Vinyl acetate | Cosmetics | Hair Care

Product Name
GOHSENX™ K

Characteristics
Cationic modified

Properties
Cationic property, Adsorption to negatively charged matter (natural fiber, pulp, etc.)

Application
Ink Jet media binder | Emulsifier for Vinyl acetate | Cationic additive

Product Name
GOHSENX™ L

Characteristics
Sulfonic modified

Properties
Dispersibility for organic and inorganic materials, protective colloid property

Application
Dye dispersant agent | Emulsifier for Acrylic/styrene/EVA | Hot melt adhesives

Product Name
GOHSENX™ T

Characteristics
Carboxyl modified

Properties
Reactivity and Water solubility with carboxylic group

Application
Coat paper, NCR, release paper | Adhesives | Water soluble film

Product Name
GOHSENX™ WO

Characteristics
EO modified

Properties
Flexibility and Hydrophilic property

Application
Ink Jet media binder | Additive for hydrophilicity | Flexible film

Product Name
GOHSENX™ LW

Characteristics
Low saponified value (30 – 50 mol%), 40wt% aqueous solution

Properties
Water soluble, hydrophilic PVOH

Application
PVC suspension agent | Anchor coat agent | Hot melt adhesives

Product Name
GOHSENX™ OKS – 5081

Characteristics
High swellable PVOH

Properties
Excellent water retention property

Application
Oil & gas application, SAP

Product Name
GOHSENOL™ EG

Characteristics
Sodium acetate; Less than 0.15wt%

Properties
High purification and Safety certification

Application
Bio Chemical materials | Pharmaceutical excipient and binder

General PVOH

Product Name
GOHSENOL&trade N, A Type

Characteristics
Saponification Degree > 91 mol%

Properties
Excellent gas barrier property, water and solvent resistance, film strength

Application
Paper coating, adhesives, binders, film, textile, etc

Grade List
Product GradeSaponification
Degree (mol%)
Viscosity
*1 (mPa.s)
pH*2Volatile
Matter (%)
N-30098.0-99.025.0-30.05.0-7.0Max 5.0
NL-05Min 98,54.0-6.05.0-7.0Max 5.0
AL-06R91.0-94.06.2-7.05.0-7.0Max 5.0
*1: Viscosity of 4% aqueous solution at 20 degree C
*2: 4% aqueous solution

Product Name
GOHSENOL™ K Type

Characteristics
Saponification Degree 71 – 83 mol%

Properties
Emulsifiability and protective colloid property

Application
Suspension agent for PVC | Adjuvant for agriculture | Flexible film

Product Name
GOHSENOL™ G Type

Characteristics
Saponification Degree 86 – 89 mol%

Properties
Excellent water solubility even in cold water, surface active and protective colloid performance, adhesion and bi nde r strength

Application
Emulsifier for vinyl acetate emulsion, dispersant for suspension polymerization of vinyl chloride, adhesives, binders

Grade List
Product GradeSaponification
Degree (mol%)
Viscosity
*1 (mPa.s)
pH*2Volatile
Matter (%)
GH-2386.5-89.048.0-56.05.0-7.0Max 5.0
GH-2286.5-89.045.0-52.05.0-7.0Max 5.0
GH-20R86.5-89.040.0-46.05.0-7.0Max 5.0
GH-17R86.5-89.027.0-33.05.0-7.0Max 5.0
GH-14R86.5-89.020.5-24.55.0-7.0Max 5.0
GL-0586.5-89.04.8-5.85.0-7.0Max 5.0
GL-0386.5-89.03.0-3.75.0-7.0Max 5.0
*1: Viscosity of 4% aqueous solution at 20 degree C
*2: 4% aqueous solution

Properties

Water-solubility
Solvent & Oil Resistance
Adhesive Strength
Film Properties
Gas Barrier
Dispersability
Chemical Reactivity
Biodegradable
Other

Processing & Handling

Storage

Since this is a fine powder, user rubber globes, dust masks, protective eyewear and other protective gear when when handing it in order to protect skin and eyes. When handling large amounts of it, install dust collection equipment. In addition, since there is danger of dust explosions occurring from ignition caused by static electricity sparks, use grounding equipment and conductive dust filtration cloth and take other countermeasures. Store in a place where it will not be dampened by rain, for example, because it could dissolve. Moreover, because it can easily harden into blocks if it absorbs moisture, avoid storing it in hot and humid conditions.

Dissolving

Suggestions for Agitation

Careful attention must be paid to the temperature of water to avoid undissolved powder lumps. Strongly agitate to avoid GOHSENOL™ particles settling at the bottom of the vessel.

Representative dissolution methods suitable for each type of GOHSENOL™ are as follows:

N and A type GOHSENOL™

Charge GOHSENOL into room temperature water under agitation. After finishing the charge, begin to raise the temperature to 90-95 degree C. Keep at this temperature for 30-60 minutes under continued agitation until it has completely dissolved.

G type GOHSENOL™

Slowly charge GOHSENOL™ into room temperature water under agitation. Begin to raise the temperature to 80-90 degree C. After having fully dispersed GOHSENOL™ keep at this temperature for 30-60 under continued agitation until it has completely dissolved. Be careful to avoid any rapid temperature increase, as this often causes severe foaming.

K type GOHSENOL™

Slowly charge GOHSENOL™ into room temperature water under agitation. Begin to raise the temperature to 70-75 degree C. After having fully dispersed GOHSENOL™, keep at this temperature for 30-60 under continued agitation until it has completely dissolved. Pay full attention to the temperature as dissolving time is significantly increased above 80 degree C. Sometimes turbidity due to the Clouding point is observed at 70-75 degree C. But this turbidity disappears after it has cooled. Be careful to avoid any rapid temperature increase, as this often causes severe foaming.

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