Page 118 - Handbook of Surface Improvement and Modification

7.2 Additives used 113

Polymer/copolymer

GENERAL INFORMATION
Name: polymer/copolymer CAS #: 34590-94-8; 204336-40-3; 134180-76-0
Active ingredient, wt%: 98-100
Product composition: 10% acrylate copolymer, 90-91% dipropylene glycol monomethyl ether; 75-
100% oxirane, methyl-, polymer with oxirane, iso-alkyl alcohol; 25-<50% oxirane, methyl-, poly-
mer with oxirane, mono(3,5,5 trimethylhexyl) ether, 5-10% polyether-modified trisiloxane; poly-
ether macromer-modified polyacrylate
PHYSICAL PROPERTIES
State: liquid Color: clear, colorless, light yellow
3
o
o
Melting point, C: <0 Boiling point, C: >100 to 339 Density, kg/m : 920-1020
o
pH: 5-9 Viscosity at 25 C, mPas: 35-100
Volatility, %: <1 Refractive index: 1.448 Vapor pressure, kPa: 0.0014
HEALTH & SAFETY
o
Autoignition, C: >200 Rat oral LD50, mg/kg: >2000 to >5200/DPM
o
Rabbit dermal LD50, mg/kg: >9500/DPM Flash point, C: 84-221
Carcinogenic: NTP, IARC, OSHA, ACGIH: No component of this product present at levels
greater than or equal to 0.1% is identified as a known or anticipated carcinogen
OSHA, PEL, ppm: 100/DPM
ECOLOGICAL PROPERTIES
Aquatic toxicity, Green algae, 96-h, LC50: 60.9/72H
Aquatic toxicity, Daphnia magna, 96-h, LC50: 10-100
USE & PERFORMANCE
Outstanding properties: Provide a strong reduction in the surface tension of coating systems.
Improve substrate wetting and prevent cratering. Increase surface slip and the coatings benefit
from a higher scratch resistance. The product stabilizes foam much less than other highly active
additives that contain silicone. Universally applicable. Low foam. Silicone-free. A silicone- and
solvent-free classes of surfactants offer advantages particularly in printing inks since they reduce
dynamic surface tension significantly. Increase the surface energy of cured coatings overall, espe-
cially the polarity. This enables the improved adhesion of subsequent layers such as paint, laminat-
ing foils, adhesives, and printing inks. The cured coating is also wetted more effectively, producing
an excellent leveling of the subsequent coating. Improved leveling of the system in which it is
being used. It has no impact on the surface tension of the liquid coating and maintains the high
transparency of clear coats when added to them. Highly efficient and widely usable substrate wet-
ting and anti-crater additive without foam stabilization.
Recommended for products: Exceptionally compatible with solventborne, solvent-free and also
aqueous coating systems. Recommended for solvent-borne, aqueous and UV coating systems as
well as printing inks.
Concentrations used, wt%: 0.02-1% of total formulation