Keycure PI-389

KECURE 389 is a kind ofα-Amino Alkylphenones photoinitiator with good solubility in formulation, which is specifically designed for use in inks requiring low odor and low migration. KECURE 389 has a longer absorption wavelength and is suitable for dark inks and LED curing ink.

Chemical Structure

2-Benzyl-2-dimethylamino-1-(4-piperidinylphenyl)-1-butanone

Molecular weight

：

364.2

CAS No.

：

119312-76-4

Appearance

：

off-white powder

Melting Point (°C)

：

72-80℃

Absorption (nm)

：

333

KECURE 389 is mainly used for UV curable inks and varnishes forapplications on paper, wood, metal and plastic materials. Its high photoinitating efficiency makes it especially suitable for pigmented UV-curable systems and electronics industry.

KECURE 389 recommended concentration is 5.0-10.0%.

KECURE 389 recommended applications:

Offset Inks              Screen Inks

Flexo Inks               LED curing Inks

Since your specific applications and conditions of use are beyond KBC’s control, you must determine the suitability of the product and the suggestions mentioned herein for your specific applications

KECURE 389 is sensitive to visible light and any exposure to sunlight should be avoided. Kept at low/ambient temperature and dry conditions. Avoid contacting with strong oxidants.

The product is stable for 2 years if stored in original, sealed containers under above-mentioned conditions.

KECURE 389 should be handled in accordance with good industrialpractice. Detailed information is provided in the Material Safety Data Sheet (MSDS).