Modified Rosin, Polyterpene Resin, Terpene Phenol Resin, Alpha Methylstyrene Resin, Tall Oil Rosin, Disproportionated Rosin, Rosin Ester, Rosin Soap, Alpha Pinene, Beta Pinene, Dipentene
1. UNI-TAC™ 70 Modified Rosin Tackifier
Overview
UNI-TAC 70 is a modified rosin that offers excellent oxidation and crystallization resistance. It functions as a tackifier for various polymers. It contains 98% USDA certified biobased content.
Key Features
| Feature |
Description |
| Tack |
Provides good initial adhesion |
| Stability |
High stability |
| Crystallization |
No tendency to crystallize |
| Oxidation Resistance |
Resistant to oxidation |
| Bio-Based Content |
98% (USDA certified) |
| Low Tg |
33°C – provides low-temperature flexibility |
Potential Applications
| Application |
Description |
| Flooring |
Provides flexibility and adhesion |
| Pressure Sensitive Adhesives (PSA) |
Balance of tack, peel, and cohesion |
| Sealants |
Flexible and durable sealing |
| Rubber Products |
Compatible with natural and synthetic rubbers |
Sales Specifications
| Property |
Test Method |
Specification |
Typical Value |
| Softening Point (°C) |
AQCM 003 |
75 – 85 |
80 |
| Color, Gardner (50% in toluene) |
AQCM 002 |
Max 14 |
9.9 |
| Acid Number (mg KOH/g) |
AQCM 001 |
145 – 160 |
153 |
Typical Values
| Property |
Test Method |
Typical Value |
| Glass Transition Temperature (Tg °C) |
AQCM 218 |
33 |
| Viscosity @ 125°C (cps) |
AQCM 004 |
765 |
| Viscosity @ 150°C (cps) |
AQCM 004 |
115 |
| Viscosity @ 177°C (cps) |
AQCM 004 |
35 |
Solubility
| Soluble In |
Insoluble In |
| Aromatic solvents (toluene) |
– |
| Aliphatic hydrocarbon solvents (hexane) |
– |
| Chlorinated solvents |
– |
Compatibility
UNI-TAC 70 is compatible with:
| Polymer Type |
Examples |
| Ethylene Copolymers |
EVA, EBA |
| Styrenic Block Copolymers |
SIS, SBS, SB Rubber |
| Natural and Synthetic Rubbers |
Natural Rubber, Butyl Rubber, Neoprene |
| Acrylic Polymers |
Acrylic-based systems |
| Plasticizers |
Phthalate and polyester plasticizers |
| Resins |
Alkyds and hydrocarbon resins |
Packaging
| Type |
Description |
| Pastille Form |
Multi-wall paper bags, 50 lb net |
| Molten Bulk |
Tank trucks or ISO containers |
Storage Recommendations
| Condition |
Recommendation |
| Temperature |
Below 20°C (70°F), dry area |
| Light |
Away from direct sunlight |
| Heat |
Away from heat sources (prevens remassing) |
| Pallet Stacking |
Do not stack pallets due to low Tg |
| Remassing |
Mild remassing is not a reason for rejection |
Comparison with Similar Products
| Product |
Type |
Softening Point (°C) |
Tg (°C) |
Acid Number |
Bio-Based |
| UNI-TAC 70 |
Modified Rosin |
75-85 |
33 |
145-160 |
98% |
| RE 85 |
Rosin Ester (Glycerol) |
80-85 |
30-33 |
≤10-13 |
100% |
| RE 103S |
Rosin Ester |
100-106 |
52 |
≤10 |
97% |
| RE 25 |
Liquid Rosin Ester |
24-32 |
-13 |
20-24 |
93% |
Key Difference: UNI-TAC 70 has a much higher acid number (145-160) compared to RE 85 (≤10-13). This means it is less esterified and more polar, which may provide better adhesion to certain substrates.
2. SYLVATRAXX™ Tread Performance Additives
Note: This is a marketing brochure, not a technical data sheet. Key information from the brochure is summarized below.
Company Heritage (Know-How)
| Area |
Experience |
| Tire & Rubber Industry |
65+ years |
| TEA™ Technology Innovations |
20+ years |
| SYLVATRAXX Brand |
11+ years |
| Pine Chemical Refining |
80+ years |
Product Purpose
SYLVATRAXX TEA™ (Tread Enhancement Additives) are designed to improve rubber compound performance in tire applications.
Target Performance Balance
| Performance Criterion |
Effect |
| Wet Grip |
Increased – safety |
| Rolling Resistance |
Decreased – fuel efficiency / EV range |
| Wear Resistance |
Increased – tire life |
Sustainability
| Feature |
Description |
| Bio-Based Certifications |
USDA BioPreferred® Program, European Biobased Certification (EN 16785-1:2015) |
| EcoVadis Rating |
Platinum – company-wide sustainability efforts |
| Circular Economy |
Breaking down waste plastics to original state |
R&D and Technical Capabilities
Kraton's R&D team has experience in:
| Expertise Area |
| Tires |
| Fillers |
| Rubber polymers |
| Coupling agents |
| Tackifiers |
| Resins |
| Process aids |
| Specialty additives |
SYLVATRAXX Product Portfolio Summary
The brochure does not detail specific product codes (2097, 4150, 4401, 4404, 5216, etc.), but states the portfolio includes:
| Product Type |
Description |
| Natural |
From renewable raw materials |
| Synthetic |
Petroleum-based |
| Hybrid |
Blend of natural and synthetic |
3. Simplified Single Line Format
English:
Modified Rosin, 98% BioBased
Turkish:
Modifiye Reçine, %98 Biyo Bazlı
CAS:
8052-10-6
1. UNI-TAC™ 70 Modified Rosin Tackifier
Industry Suitability Table
| Industry / Application |
Suitability |
Description |
| Flooring |
⭐⭐⭐⭐⭐ |
Low Tg (33°C) provides flexibility and good adhesion |
| Pressure Sensitive Adhesives (PSA) |
⭐⭐⭐⭐⭐ |
Balance of tack, peel, and cohesion |
| Sealants |
⭐⭐⭐⭐ |
Flexible and durable sealing |
| Rubber Products |
⭐⭐⭐⭐ |
High compatibility with natural and synthetic rubbers |
| Packaging |
⭐⭐⭐ |
Moderate suitability, mainly for flexible applications |
| Woodworking |
⭐⭐ |
Low viscosity, suitable for special formulations |
Production Process
UNI-TAC 70 is produced as a modified rosin through the following steps:
| Step |
Description |
| 1. Raw Material |
Tall Oil Rosin – by-product of paper production |
| 2. Modification |
Partial esterification or thermal treatment of rosin acids |
| 3. Oxidation Resistance |
Disproportionation-like process to increase stability |
| 4. Anti-Crystallization |
Special treatment to minimize crystallization tendency |
| 5. Pastillation |
Molten rosin is cooled and converted into pastille form |
| 6. Packaging |
50 lb paper bags or bulk shipment |
Production Flow:
Tall Oil Rosin → Modification → Stability Treatment → Pastillation → Packaging
Usage Ratios (In Formulations)
| Base Polymer |
UNI-TAC 70 Ratio (phr) |
Description |
| EVA (Ethylene Vinyl Acetate) |
80 – 120 |
Low viscosity, good flexibility |
| SIS (Styrene-Isoprene-Styrene) |
60 – 100 |
Tack enhancement for PSA applications |
| SBS (Styrene-Butadiene-Styrene) |
50 – 80 |
Balance of cohesion and flexibility |
| Natural Rubber (NR) |
40 – 80 |
Adhesion and flexibility |
| Butyl Rubber (IIR) |
30 – 60 |
Sealant applications |
| Acrylic Polymers |
20 – 50 |
Co-tackifier for water-based systems |
Note: phr = parts per hundred rubber (per 100 parts of polymer)
Example PSA Formulation (SIS-based):
| Component |
Ratio (phr) |
| SIS Polymer |
100 |
| UNI-TAC 70 |
80 – 120 |
| Plasticizer (Mineral Oil) |
10 – 30 |
| Antioxidant |
1 – 2 |
2. SYLVATRAXX™ Tread Performance Additives (TEA™)
Industry Suitability Table
| Industry / Application |
Suitability |
Description |
| Passenger Car Tires (PCR) |
⭐⭐⭐⭐⭐ |
Balance of wet grip and rolling resistance |
| Electric Vehicle Tires (EV) |
⭐⭐⭐⭐⭐ |
High torque and weight management |
| Truck & Bus Tires (TBR) |
⭐⭐⭐⭐ |
Wear resistance and heat management |
| Winter Tires |
⭐⭐⭐⭐ |
Cold weather performance |
| High Performance Summer Tires |
⭐⭐⭐⭐⭐ |
Maximum wet grip |
| Off-Road / All-Terrain Tires |
⭐⭐⭐ |
Durability and wear resistance |
Production Process
SYLVATRAXX additives are produced through the following methods:
| Product Type |
Production Method |
Description |
| Natural (Bio-Based) |
Terpene polymerization |
Polymerization of terpene monomers obtained from pine trees |
| Synthetic |
Petroleum-based polymerization |
Polymerization of alpha-methyl styrene or other aromatic monomers |
| Hybrid |
Copolymerization |
Co-polymerization of natural and synthetic monomers |
Production Flow (Polyterpene Type):
Pine Turpentine → Distillation → Alpha/Beta Pinene → Cationic Polymerization → SYLVATRAXX Resin
Usage Ratios (In Tire Compounds)
| Tire Type |
SYLVATRAXX Usage Ratio (phr) |
Description |
| Summer Tire (Tread) |
5 – 15 |
Increases wet grip |
| Winter Tire (Tread) |
8 – 20 |
Improves cold weather performance |
| EV Tire (Tread) |
10 – 25 |
Wear resistance under high torque |
| Performance Tire |
5 – 12 |
Balance of rolling resistance and wet grip |
Example Tire Tread Formulation:
| Component |
Ratio (phr) |
Function |
| SBR (Styrene-Butadiene Rubber) |
70 – 100 |
Base polymer |
| BR (Butadiene Rubber) |
0 – 30 |
Wear resistance |
| Silica |
50 – 80 |
Wet grip |
| Silane |
5 – 10 |
Coupling agent |
| SYLVATRAXX TEA™ |
5 – 20 |
Tread performance additive |
| Carbon Black |
5 – 15 |
Reinforcement |
| Zinc Oxide |
2 – 3 |
Activation |
| Sulfur |
1 – 2 |
Vulcanization |
3. Summary Comparison Table
| Property |
UNI-TAC 70 |
SYLVATRAXX TEA™ |
| Primary Application |
Adhesives, flooring, sealants |
Tire tread performance |
| Product Type |
Modified Rosin |
Tread Enhancement Additive |
| Bio-Based Content |
98% |
70-100% (varies by product) |
| Tg Range |
33°C |
-20°C to +90°C (varies by product) |
| Softening Point |
75-85°C |
25°C to 165°C (varies by product) |
| Usage Ratio |
20-120 phr (depending on polymer) |
5-25 phr (depending on tire type) |
| Production |
Tall oil rosin modification |
Terpene polymerization / synthetic |
