Special Raw Materials
Polyols & Polymers
Ketone aldehyde resins
The Polytone K series comprises neutral, unsaponifiable ketone formaldehyde resins, which produced by alkaline polycondensation of cyclohexanone with formaldehyde. The light-colored hard resins are suitable for applications in paints, coatings, adhesives and printing inks. Their use in coating systems can improve a wide range of product properties, such as gloss, flow, hardness, adhesion and filling capacity.
| Product | Melting point [°C] | Viscosity at 25 °C; 50 % solution in alcohol; B-4 fC in sec [cPs] | Acid number [mg KOH/g] max. | Hydroxyl number [mg KOH/g resin] | Iodine value, 50 % solution in alcohol max. | Applications/properties |
|---|---|---|---|---|---|---|
| Polytone K-93 | 98–103 | 15–17 | ≤ 1 | 265–285 | 1 | Lacquer and paper coatings |
| Polytone K-94 | 90–95 | 17–19 | ≤ 1 | 200–220 | 1 | Flexographic and gravure inks, ballpoint pen inks |
| Polytone K-95 | 100–105 | 19–21 | ≤ 1 | 230–250 | 1 | Flexographic and gravure inks, ballpoint pen inks |
| Polytone K-96 | 105–110 | 20–23 | ≤ 0.5 | 230–250 | 1 | Flexographic and gravure inks, ballpoint pen inks |
| Polytone K-97 | 110–120 | 22–25 | ≤ 0.5 | 230–250 | 1 | Flexographic and gravure inks, ballpoint pen inks |
CWK
Silica brine
Köstrosole® are milky, cloudy, aqueous colloidal nanoparticle dispersions of amorphous silicon dioxide. The particles are produced from high-purity alkali silicate, are spherical and hydroxylated on the surface. Depending on the target application, the silica brines can modified and changed in terms of their reactivity.
| Product | Appearance | Average particle size approx.[nm] |
Solids content[approx. % m/m] |
pH value at 25 °C approx. |
Stabilizer | Applications/properties |
|---|---|---|---|---|---|---|
| Köstrosol® 0730 |
Opalescent liquid |
7 | 30 | 10 | Na2O | Additive to formulations to increase scratch and abrasion resistance, to improve mechanical properties(breakingstrength) and as a component of heat and corrosion-resistant paints or; to maintain transparency, for fast-curingsystems, good stability in fresh concrete. |
| Köstrosol® 1540 |
Opalescent liquid |
15 | 40 | 10 | Na2O | Additive to formulations to increase scratch and abrasion resistance, to improve mechanical properties (breaking strength) and as a component ofheat- and corrosion-resistant paints or as a filler or matting agent and as a derivatizing component. |
| Köstrosol® AD 1530 |
Opalescent liquid |
15 | 30 | 6 | Na2O | Additive to formulations to increase scratch and abrasion resistance, to improve mechanical properties (breaking strength) and as a component of heat- and corrosion-resistant paints or, as a filler or matting agent, stable against many additives, opacifying effects. |
| Köstrosol® 3550 |
Milky white liquid |
45–50 | 50 | 10 | Na2O | Additive to formulations to increase scratch and abrasion resistance, to improve mechanical properties (breaking strength) and as a component of heat- and corrosion-resistant paints or, as a filler or matting agent, stable against many additives, opacifying effects. |
| Köstrosol® 2040 AS |
Opalescent to slightly cloudy liquid |
20 | 40 | 9 | NH3 | Additive to formulations to increase scratch and abrasion resistance, to improve mechanical properties (breaking strength) and as a component of heat- and corrosion-resistant paints or, as a filler or matting agent, as a derivatizing component, particularly suitable for alkali-sensitive applications, stabilized via ammonium ions (NH4+). |
| Köstrosol® WA 1530 |
Opalescent liquid |
– | 30 | 2 | – | Additive to formulations to increase scratch and abrasion resistance, to improve mechanical (breaking strength) and as a component of heat- and corrosion-resistant paints or coatings, as a filler or matting agent, as a derivatizing; aluminium oxide modified. |
CWK
Micronized silica gels
The Köstropur® grades are silica gels of finely ground amorphous silicon dioxide. It is a water-insoluble white powder with a hydrophilic surface and a high pore volume. The particle sizes range from 2 to 25 μm.
| Product | H2O[%] | Average d50 value[μm] approx. |
BET[m2/g] | pH value[10 g/l] | Applications/properties |
|---|---|---|---|---|---|
| Köstropur® 020408 |
max. 3 | 4 | 300–350 | 5.5–7.5 | Filler in plastic (PA6, PA66, PMMA etc.) to improve the mechanical properties, anti-blocking agent. |
| Köstropur® 020812 |
max. 3 | 8 | 300–350 | 5.5–7.5 | For plastic as an anti-blocking agent in e.g. PE, PP, PVC, PU films. |
| Köstropur® 100808 |
8–12 | 7 | 330–390 | 5.5–7.5 | Filler in plastic (PA6, PA66, PMMA etc.) to improve mechanical properties, paper finishing, inkjet coating. |
| Köstropur® 020612 |
max. 3 | 6 | 280–350 | 4.0–7.0 | For plastic as an anti-blocking agent in e.g. PE, PP, PVC and PU films. |
| Köstropur® 021012 |
max. 3 | 10 | 250–400 | 5.5–7.5 | For plastic as an anti-blocking agent in e.g. PE, PP, PVC and PU films, paper finishing. |
| Köstropur® 050612 |
4–7 | 6 | 350-400 | 5.5–7.5 | Matting agent for paints/lacquers. |
| Köstropur® 050618 |
max. 5 | 6 | 220–300 | 4.0–7.0 | Matting agent for paints/lacquers. |
| Köstropur® 050818 |
max. 5 | 9 | 220–300 | 4.0–7.0 | Matting agent for paints/lacquers. |
| Köstropur® W050618 |
max. 5 | 6 | 220–300 | 4.0–7.0 | Matting agent for paints/lacquers, organic surface treatment |
| Köstropur® W050818 |
max. 5 | 9 | 220–300 | 4.0–7.0 | Matting agent for paints/lacquers, organic surface treatment |
WorléeDex
Starch-modified copolymer dispersions for printing inks and overprint varnishes
| Product | Type | Non- volat. Proportion DIN EN ISO 3251[%] |
pH value DIN 53785 |
Density DIN 51757[g/cm3] |
MFT[°C] | Viscosity 20 °C, Lff. Brookfield, ISO 2555[mPa·s] |
Applications/properties |
|---|---|---|---|---|---|---|---|
| WorléeDex 1177 | Starch copolymer dispersion |
40 | 3.0–5.0 | 1.06 | 28 | < 800 | For flexographic printing inks, ammonia and amine-free |
| WorléeDex 1182 | Starch copolymer dispersion |
50 | 7.5–9.0 | 1.04 | 28 | < 300 | For very thin papers, ammonia and amine-free |
WorléeGum
Renewable raw materials and natural resins
White dammar is a recent, versatile natural resin with high transparency, good resistance to yellowing and excellent gloss properties. Spray-soluble copal 5001 is a recent to semi-recent, occasionally also fossil natural resin that is characterized by hardness, permanent elasticity, fullness and also good resistance to yellowing.
| Product | Softening point [°C] | Acid number DIN EN ISO 3682 [mgKOH/g] | Saponification number DIN EN ISO 3681 [mgKOH/g] | Color number DIN Iso 4630, Gardner | Delivery forms | Applications/properties |
|---|---|---|---|---|---|---|
| Dammar weiß A Type 5200 | approx. 75 | 25–35 | 35–60 | 3–5 | Chunky | In combination with oils and alkyds for radiator paints and solvent-based gravure inks with high gloss and good adhesion to plastic. |
| Kopal 5001 | 100–120 | 100–120 | 145–190 | 3–6 | Chunky | In combination with other binders for wood, paper and floor coatings and adhesives. |
WorléeGum
Renewable raw materials and natural resins
Shellac in the form of flakes is a versatile material that is valued in various applications, it is characterized by excellent mechanical, thermal and electrical properties.
| Product | Wax content[%] | Melting point[°C] |
Acid number DIN EN ISO 3682[mgKOH/g] |
Saponification number DIN EN ISO 3681[mgKOH/g] |
Color number Gardner 20 % in ethanol |
Delivery forms |
Applications/properties |
|---|---|---|---|---|---|---|---|
| Schellack 4621 entwachst |
≤ 0,2 | 65–85 | 65–80 | 190–230 | max. 10 | flakes | Wood and paper varnishes, polishes, coatings and good adhesion to plastic. |
| Schellack 4625 DO entwachst |
≤ 0,2 | 65–85 | 65–80 | 190–230 | max. 16 | flakes | |
| Schellack 4504 lemon 1 m.m. wachshaltig |
≤ 5,5 | 70–90 | 65–76 | 185–200 | max. 16 | flakes | Wood and paper varnishes, polishes, coatings and adhesives; enables the production of high-bodied, fast drying, water-resistant printing inks and over print varnishes. |
| Schellack 4505 TN wachshaltig |
≤ 4,5 | 70–90 | 60–80 | 185–220 | max. 18 | flakes |
WorléeGum
Shellac solutions
Alcoholic shellac solutions are for furniture polishes, adhesives, printing inks, inks, floor care products and electrical insulation varnishes. The aqueous solutions are suitable for wood, paper and leather varnishes, as well as for inks and hat stiffeners.
| Product | Appearence | Solids content approx.[%] | pH value | Viscosity[mPa·s] max. | Delivery forms |
|---|---|---|---|---|---|
| W’7730 SOLW | Yellow – orange solution |
25–27 | 7.5–8.5 | 1,000 | approx. 25 % white bleached shellac in a potassium hydroxide solution |
| W’7730 SOLL | Yellow – orange solution |
49 | – | 390 | approx. 49 % white bleached shellac (dewaxed) dissolved in ethanol |
| W‘4505 SOLW | Dark solution | 29–31 | 7.0–7.5 | 200 | approx. 30 % shellac (containing wax) dissolved in a potassium hydroxide solution |
WorléePetroleumharz
Aromatic hydrocarbon resins
Worlée petroleum resins are non-polar, pale yellow, thermoplastic resins with a low molecular weight, which produced from monomers based on petroleum derivatives. The high melting point of the products ensures excellent gloss results in the printed image and to a shorter drying time. They are suitable for a variety of applications in different areas.
| Product | Softening point ASTM E28–58[°C] |
Viscosity 20 °C, lff. Brookfield, Iso 2555[mPa·s] |
Color number[Gardner]
50 % in solid resin in toluene |
Acid number[mgKOH/g] | Saponification number ASTM D464[mgKOH/g] |
Applications/properties |
|---|---|---|---|---|---|---|
| SK-120 | 115–125 | 500–800 | max. 10 | ≤ 0.1 | – | Combination binder for industrial paints, clear coats, dip or spray clear coats based on alkyds |
| SK-140 | 135–145 | 800–1,000 | max. 11 | ≤ 0.1 | ≤ 3 | Combination resin for coldset colors |
| SK-150 | 145–155 | 800–1,000 | max. 11 | ≤ 0.1 | ≤ 3 | Combination resin with improved solubility for cold/heatset colors |
** The products in the table are selected from the catalog. More detailed information can be found on the Worlée-Chemie website. It should be noted that our product portfolio also includes special products that are not listed in the catalog.