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Aminoethylated acrylic polymers : POLYMENT™

Product Aminoethylated acrylic polymers : POLYMENT™
Applications Paints, Adhesives, Rust preventive coating for zinc steel plate & Aluminium, Modifier for paint adhesion, AC agent, Primer

Epomin,Polyment [866 KB]

POLYMENT is the primary amino group component acrylic polymer which has polyethyleneimine in side chain.
POLYMENT is poly acryl amine having both characteristics of polyethyleneimine and acrylic polymer and is superior in high reactivity and adhesion of the primary amino group origin.
Generally, for cationic acrylic polymer, Dimethylaminoethyl acrylate polymer (DAA),
Dimethylaminoethyl methacrylate polymer (DAM) are known, However, they are the tertiary amine or quarternary amine type. For polymer having primary amine, POLYMENT is only one product in the world.

Production method of POLYMENT

POLYMENT is synthesized by reaction with ethyleneimine and carboxylic acid group.

Chemical Structure

Characteristic of POLYMENT

POLYMENT has water reducibility type (NK-100PM, NK-200PM), solvent type (NK-350,NK-380).
The adhesives, primers, paints which blended epoxy resin with POLYMENT show superior adhesion to plastics and metals.

Type Water reducibility Solvent
Product NK-100PM, NK-200PM NK-350, NK-380
Structure Chemical Structure Chemical Structure
  • Water soluble polymer
  • Self emulsification type hardening agent of epoxy resin
  • Room temperature reactivity with epoxy resin
  • Superior adhesion
  • Superior water resistance and chemical resistance
  • Solvent soluble polymer
  • Room temperature reactivity with epoxy resin
  • Superior adhesion
  • Superior water resistance, chemical resistance and barrier
  • Water based for floor paints
  • Primer for olefin films
  • Primer for pressure sensitive adhesive tape
  • Adhesive promoting agents and primer for films
  • Adhesives of fluorine film with Steel (NK-350)
  • Antimigration agent for PVC film (NK-380)

In using our products (POLYMENT) in relation to the application referred to in this booklet, please pay attention to existence of the intellectual property rights (including patent and its application) owned by any third parties and avoid the possible infringement of such intellectual property rights. NIPPON SHOKUBAI shall in no event be responsible for any damages or liabilities caused by infringement or alleged infringement of said intellectual property rights due to the above-mentioned use of our products.

Specification and property of POLYMENT

(Water reducibility)
(Water reducibility)
Spec. Solid cont.(wt%) 48.0-50.0 55.0-57.0 33.0-37.0 29.0-31.0
4000-8000 20000-40000 400-1500 ‹ 2000
pH 4.0-5.5 4.0-5.5
Appearance Viscous,
clear liquid
light yellow liquid
Water solubility Complate Complate
Amino hydrogen
equivalent weight
350-450 370-470 1000-1800 800-1400
Physical Amine value
2.2-2.9 2.2-2.9 0.6-1.0 0.7-1.3
Tg(℃) 13 16 40 100
MW 10,000~30,000 10,000~30,000 100,000 100,000
Spec. grav.(25℃) 1.05 1.10 0.95 0.94
Product solvent PM PM Toluene/lPA (7/3) Toluene / MIBK (3/1)
Solubility Dissolble in water, lower alcohol Dissolble in water, lower alcohol Dissolble in toluene, IPA
Insoluble in water,
Dissolble in toluene, MIBK,
Insoluble in water
Flash point(℃) 36(Closed Cup) 36(Closed Cup) 4(Closed Cup) 4(Closed Cup)
Safety Acute oral toxicity
LD50(mg/kg. rat)
› 5000 › 5000 › 5000 › 5000
Acute dermal toxicity
LD50(mg/kg. rat)
› 2000 › 2000 › 2000 › 5000
Primary skin irritation
Slight Slight Severe Moderate
Acute eye irritation
Moderate~ Severe Moderate~ Severe Moderate~ Severe
Positive Positive Positive
Micronucleus test
(in vivo)
Negative Negative Negative Negative
CAS No. 67970-17-6 or
103051-70-3 120363-55-5 178954-62-6

PM:Propylene glycol monomethyl ether, IPA:Isopropyl alcohol,
MIBK:Methyl isobutyl ketone, MEK:Methyl ethyl ketone

  1. Amino hydrogen equivalent weight: Solid weight equivalent to one amine mol.
  2. Amine value: Amine mol number (mmol) contained in solid 1g

Please refer to the Safety Data Sheet (SDS) that provides details of the safety of the product.
Above-mentioned regulations are valid September, 2012.

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