FOREVEREST MODIFIED ROSINS

FOREVEREST™ Modified Rosins are modified based on the conjugated double bonds of Abietic acid type-Resin acids. In the tricyclic skeleton structure of resin acids contains two double bonds and a carboxyl. The conjugated double bonds in this structure causes rosin be oxidized and tarnished easily, and the thermal stability is hard to control. Through modify processing on maleated, hydrogenation, disproportionation and polymerization, which separate the acidic compounds from Abietic acid type-Resin acids, would improving oxidation resistance, crystallinity and the thermal stability. After modifying, rosins have excellent performances on the rosin resin production and specialty applications of adhesives, coatings and paints industries.

Acrylic Acid Modified Rosin

Acrylic Acid Modified Rosin is a derivative from additive reaction of gum rosin with acrylic acid.

Colorless Fully Hydrogenated Rosin

400 is refined from hydrogenated rosin or high-hydrogenated rosin that are eliminated foreign matter. With the benefit of colorless, is applied as solid or liquid solder flux, and the raw material of light-colored rosin resin and hot melt adhesives. It’s the substitue for Eastman® product.

Disproportionated Rosin

DPR is compound of dehydroabie acid and dihydroabtice acid, the DPR is processed through catalytic reaction of gum rosin on proper temperature. In the synthetic rubber industry, DPR is used as emulsifier in the producing of various product including styrene-butadiene rubber, chloroprene rubber, acrylonitrile-butadiene rubber and acrylonitrile-butadiene-styrene rubber.

Hydrogenated Rosin

Lovibond, Yellow ≤12
Lovibond, Red ≤1.7
Abietic acid, % ≤2.0
Absorbed by oxygen, % ≤0.2
Acid Value, mgKOH/g ≥162.0
Alcohol insoluble Substance, % ≤0.020
Dehydroabietic acid, % ≤10.0
Softening Point, R&B, °C ≥72.0
Unsaponifiable matter, % ≤7.0
Lovibond, Yellow ≤20
Lovibond, Red ≤2.1
Abietic acid, % ≤2.5
Absorbed by oxygen, % ≤0.2
Acid Value, mgKOH/g ≥160.0
Alcohol insoluble Substance, % ≤0.030
Dehydroabietic acid, % ≤10.0
Softening Point, R&B, °C ≥71.0
Unsaponifiable matter, % ≤8.0
Lovibond, Yellow ≤30
Lovibond, Red ≤2.5
Abietic acid, % ≤3
Absorbed by oxygen, % ≤0.3
Acid Value, mgKOH/g ≥158.0
Alcohol insoluble Substance, % ≤0.040
Dehydroabietic acid, % ≤15.0
Softening Point, R&B, °C ≥70.0
Unsaponifiable matter, % ≤9.0

Polymerized Rosin

Acid Value, mgKOH/g 145~155
Colour, Gardner ≤10
Dissolvable Content in Hot Water, % ≤0.20
Softening Point, R&B, °C 95~105
Undissolved Content in Alcohol, % ≤0.030
Acid Value, mgKOH/g 145
Colour, Gardner ≤10
Dissolvable Content in Hot Water, % ≤0.20
Softening Point, R&B, °C 110~120
Undissolved Content in Alcohol, % ≤0.030
Acid Value, mgKOH/g 140
Colour, Gardner ≤10
Dissolvable Content in Hot Water, % ≤0.20
Softening Point, R&B, °C 135~145
Undissolved Content in Alcohol, % ≤0.030

Water-White Hydrogenated Rosin

Colour, Lovibond Y ≤1.5, R ≤0.3
Acid Value, mgKOH/g ≥170.0
Softening Point, R&B, °C ≥78.0
Tetrahydro-resin Acid, % ≥10.0
Hydro-resin Acid, % ≥90.0
Dehydroabietic Acid, % ≤10.0
Ash, % ≤0.008
Test of heat stability, at 20°C ≤X
Unsaponifiabe Matter, % ≤5.0
Abietic Acid, % ≤1.0
Colour, Lovibond Y ≤1.5, R ≤0.3
Acid Value, mgKOH/g ≥170.0
Softening Point, R&B, °C ≥78.0
Tetrahydro-resin Acid, % ≥30.0~40.0
Hydro-resin Acid, % ≥92.0
Dehydroabietic Acid, % ≤10.0
Ash, % ≤0.008
Test of heat stability, at 20°C ≤X
Unsaponifiabe Matter, % ≤5.0
Abietic Acid, % ≤1.0