New Product: SYLVAPACK^TM RE 100 RC

• SYLVAPACK^TM RE 100 RC is a rosin ester tackifier, specifically designed for EVA based packaging hotmelt applications in case and carton sealing


• The product shows markedly improved processability over C5/C9 tackifiers in EVA systems, exhibiting better color stability and lower char development


• Its versatility allows it to be used in a wide range of EVA formulations, typically at levels of 30-45%


• SYLVAPACK^TM RE 100 RC is designed typically for use in hotmelt applications where good processing performance (color stability, low char) is required, coupled with good adhesion performance





• Our main raw materials are Crude Tall Oil and Crude Sulphate Turpentine. These are natural products of sustainable forestry and co-products of the pulp industry. When refined, they offer bio-based raw material for many uses


• SYLVAPACK^TM RE 100 RC is built upon this renewable raw materials base, its long term supply outlook is stable

• SYLVAPACK^TM RE 100 RC greatly enhances colour stability in EVA hotmelts. Aging results are shown for aging at 177 °C for 96 hours
• SYLVAPACK^TM RE 100 RC shows reduced char development through improved oxidative stability, a known factor in influencing clean running behaviour
• This provides increased value to adhesive manufacturers through more color stable and reduced char solutions

The improved oxidative stability of SYLVAPACK^TM RE 100 RC in comparison to standard rosin esters is shown in these DSC curves (ASTM D5483)

The reduced char performance of SYLVAPACK^TM RE 100 RC can be clearly observed in the hotmelt hose, when running the SYLVAPACK^TM hotmelt continuously for a month. Shown is the SYLVAPACK^TM hotmelt next to a standard hydrocarbon tackified hotmelt, also after 4 weeks of continuous use. Char formation is clearly observed with the standard product and absent for the SYLVAPACK^TM product

Standard rosin ester hotmelt

SYLVAPACK^TM RE 100 RC hotmelt

• Rosin esters
• Terpene phenolics
• Polyterpenes
• AMS
• AMS phenolics
• Styrenated terpenes
• Dispersions

EVA Hotmelt Properties

Parameter

Appearance
Typical Gardner color (neat)
Typical viscosity (Brookfield)
Model RVTD, spindle # 27, @ 177 oC )
% Fiber tear Permeated paper
% Fiber tear Recycled paper

Typical Hotmelt Composition

Component

EVA (MI=400, 28%)
Wax (Sasol)
SYLVAPACK^TM RE 100 RC
Antioxidant

Result

Clear
1.0 - 1.5
950 cps

98 / 100 / 85 %  (At 50C, 20C and -5C)
93 / 80 / 10 %  (At 50C, 20C and -5C)






Level

40 %
25 %
34.5 %
0.5 %