Description

Soybean Oil, Polymer With Pentaerythritol, Phthalic Anhydride And Tdi is a specialized alkyd-type polymer resin derived from renewable soybean oil, modified with pentaerythritol, phthalic anhydride, and toluene diisocyanate (TDI). This compound matters for its unique combination of bio-based content and the enhanced film-forming, flexibility, and durability imparted by its polymeric structure. It is primarily needed by manufacturers in the coatings, adhesives, and ink industries seeking sustainable alternatives with robust performance characteristics. The material is commercially supplied under CAS No. 68188-21-6.

Application

• As a bio-based polyol component in the formulation of polyurethane coatings and adhesives.
• As a modifying resin in alkyd paints and varnishes to improve flexibility and drying time.
• In the production of flexographic and lithographic printing inks to enhance gloss and adhesion.
• As a reactive diluent or binder in industrial maintenance and marine coatings.
• For formulating sustainable sealants and caulks with good weatherability.
• In the manufacture of plasticizers and compatibilizers for polymer blends.
• As a cross-linking agent in specialty elastomers and composite materials.

Basic Information

Product Name	Soybean Oil, Polymer With Pentaerythritol, Phthalic Anhydride And Tdi
CAS No.	68188-21-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Soybean oil, polymer with pentaerythritol, phthalic anhydride and toluene diisocyanate; Alkyd resin from soybean oil, pentaerythritol, phthalic anhydride and TDI; TDI-modified soybean oil alkyd; Soybean oil-pentaerythritol-phthalic anhydride-TDI copolymer; Polyurethane prepolymer from soybean oil; Bio-based urethane alkyd; TOFA (Tall Oil Fatty Acid) alkyd analog (common alternative); Uralkyd resin
EINECS	Contact for details

Quality Control

Our Soybean Oil, Polymer With Pentaerythritol, Phthalic Anhydride And Tdi is produced under a rigorous quality management system. Each batch is tested to ensure consistency in key parameters such as hydroxyl value, acid value, viscosity, and color. Certificates of Analysis (COA) documenting these specifications are available upon request. While not typically a pharmaceutical-grade material, production can adhere to relevant industrial standards such as ISO 9001 upon inquiry.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is light-sensitive and easily oxidized; prolonged exposure to air, heat, or light should be avoided to prevent degradation and gelation. For long-term storage, consider blanketing with an inert gas such as nitrogen.

Specification

Item	Specification
Appearance	Viscous liquid, clear to pale yellow
Identification (IR)	Conforms to structure
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 10.0
Viscosity (at 25°C)	Contact for details
Color (Gardner)	≤ 6
Solid Content (%)	Contact for details
Moisture Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.