PN 320/PAST ALNOVOL

TYPENon-self-curing phenolic resins of the novolak typeFORM OF DELIVRY (f.o.d.)PelletsUSESReinforcement of rubberSpirit

TYPE
Non-self-curing phenolic resins of the novolak type
FORM OF DELIVRY (f.o.d.)
Pellets
USES
Reinforcement of rubber
Spirit laquers, Alnovol PN 430 is usable to petrol-resistant coatings,
sealers and electro insulating varnishes
PRODUCT DATA
The data are determined by our quality control for each batch (lot)
before release.
Determined per batch:
Softening Point DIN EN ISO 4625-1
softening point [°C] 108 - 120
Ring & Ball (5 °C/min)
Dynamic Viscosity (Ubbelohde) DIN 53177
dynamic viscosity [mPa.s] 1400 - 2200
50% MP
(23 °C)
Iodine Colour Number DIN 6162
iodine colour number <=20
Phenolic Resins, residual (GC) DIN EN ISO 8974
content [%] <= 0,3
Not continually determined:
Melting Interval DIN 53181
melting range [°C] 79 - 89
Colour Scale (Gardner) DIN EN ISO 4630-1
Gardner colour value <=9
Density (Solids) DIN EN ISO 1183-1
density [g/cm³] 1,20
analogous, approx.
(B)
SOLUBILITY
Soluble in the commonly used alcohols, glycol ethers, esters and
ketones. Insoluble in aliphatic and aromatic hydro-carbons.
DOSAGE
10–20 pts by wt Alnovol PN 320 to 100 pts by wt rubber. Higher
additions are possible.
PROPERTIES AND USES
Rubber
Alnovol PN 320 and is suitable for rein-forcing natural rubber,
styrene-butadiene rubber and nitrile rubber. Alnovol PN 320 is
odourless and an environmental product due to its very low content of
free phenol. This resin is readily absorbed by the rubbermix and
they have a strong plasticizing effect.
Paint
Alnovol PN 320 dry by solvent evaporation. It is commonly applied as a
solution in ethanol. Solution of Alnovol PN 320 dry very rapidly
to hard coatings with good resistance to water, weak acids and also
petrol, mineral oils and tar. Coatings are weakly yellowish and
possess moderate. The addition of small amounts of plasticizing
components such as suitable alkyd resins or polyvinyl butyral has
proved to be an effective way of modifying.
Spirit varnishes
Alnovol PN 320 serve as a binder for fast-drying spirit varnishes. Such
varnishes are used, for instance, in iron foundries for coating moulds
and for coating toys and other consumer goods. Other fields of
application are brewery enamels for vats and barrels and French polish.
Coatings with resistance to petrol and mineral oils
Alnovol PN 320 is combined with the ®Phenodur grades PR 373 or PR
263 and, if necessary, plasticizing alkyd resins and/or polyvinyl butyral
for the manufacture of coatings which dry by solvent evaporation. Such
coatings are resistant to petrol and mineral oils and are
used for protecting the interior of tanks, storage containers, pipe
systems and machine housings.
Sealers
Combinations of Alnovol PN 320 and Vialkyd AC 421 have proved
suitable for producing barrier coatings for preventing the passage of tar,
bitumen and similar substances into subsequent coats.

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