Description

Pentaerythritolesterofwoodrosin CAS NO 8050-10-0 is a specialized ester derivative of wood rosin and pentaerythritol, functioning as a high-performance tackifier and modifier. This compound is valued for its ability to enhance adhesion, cohesion, and thermal stability in polymer formulations. It is essential for manufacturers in the adhesives, coatings, and ink industries seeking to improve product performance and durability.

Application

• Hot-Melt Adhesives (HMAs): A primary tackifier providing excellent initial and long-term adhesion for packaging, labeling, and non-woven applications.
• Pressure-Sensitive Adhesives (PSAs): Used in tapes, labels, and graphic films to balance tack, peel strength, and shear resistance.
• Industrial and Protective Coatings: Imparts improved film formation, gloss, and water resistance.
• Printing Inks: Acts as a resinous component to enhance pigment wetting, print gloss, and rub resistance.
• Rubber Compounding: Serves as a processing aid and tackifier in various rubber products.
• Sealants and Caulks: Improves adhesion to substrates and flexibility of the final seal.

Basic Information

Product Name	Pentaerythritolesterofwoodrosin
CAS No.	8050-10-0
Molecular Formula	Complex mixture; primarily esters of abiotic and pimaric-type resin acids with pentaerythritol.
Molecular Weight	Variable (typically 1000-1500 g/mol average)
Synonyms	Pentaerythritol ester of wood rosin; Pentaerythritol rosin ester; Rosin, pentaerythritol ester; Ester gum; Glycerol ester of wood rosin (related); Wood rosin, pentaerythritol ester; Penta resin ester; Tackifier RES-A-2514 (example trade name)
EINECS	232-479-9

Quality Control

Our Pentaerythritolesterofwoodrosin is produced under a strict quality management system. Each batch is tested against key parameters including acid value, softening point, color, and solubility to ensure consistent performance and batch-to-batch uniformity. Certificates of Analysis (COA) documenting these specifications are available upon request.

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 easily oxidized; prolonged storage under an inert atmosphere (e.g., nitrogen) is recommended for optimal long-term stability. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Pale yellow to amber solid / flakes
Softening Point (Ring & Ball)	90 - 110 °C
Acid Value	≤ 20 mg KOH/g
Color (Gardner)	≤ 8
Saponification Value	140 - 170 mg KOH/g
Solubility (in Toluene)	Clear solution

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