Description

Rosin, Polymer With p-tert-Butylphenol And Formaldehyde is a synthetic resin derived from the polymerization of rosin with p-tert-butylphenol and formaldehyde. This chemical modification significantly enhances the rosin's thermal stability, tack, and adhesion properties, making it a superior performance additive. It is primarily used in the formulation of high-performance adhesives, sealants, and coatings where durability and strong bonding are critical. This product is supplied under CAS No. 68649-82-1.

Application

• Hot-Melt Adhesives (HMAs): A key tackifier and modifier, improving initial grab, open time, and thermal stability for packaging, woodworking, and product assembly.
• Pressure-Sensitive Adhesives (PSAs): Enhances peel strength, tack, and shear resistance in tapes, labels, and graphic films.
• Rubber Compounding: Acts as a processing aid and tackifier in rubber formulations for tires, belts, hoses, and other molded goods.
• Industrial and Protective Coatings: Imparts improved adhesion, gloss, and water resistance to solvent-based and alkyd resin coatings.
• Sealants and Caulks: Provides enhanced cohesion, flexibility, and adhesion to substrates in construction and automotive sealants.
• Inks: Used as a resin component to improve gloss, rub resistance, and substrate adhesion in specialty printing inks.

Basic Information

Product Name	Rosin, Polymer With p-tert-Butylphenol And Formaldehyde
CAS No.	68649-82-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Rosin, polymer with p-tert-butylphenol and formaldehyde; p-tert-Butylphenol-formaldehyde resin, rosin-modified; Rosin-modified p-tert-butylphenol formaldehyde resin; Tackifier resin T-100 series (trade); Phenolic modified rosin resin; Alkyl phenolic modified rosin ester; Terpene phenolic resin (related class); Adhesive tackifying resin
EINECS	Contact for details

Quality Control

Our Rosin, Polymer With p-tert-Butylphenol And Formaldehyde is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance in key parameters such as softening point, acid value, and color. Certificates of Analysis (COA) are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and open flame. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	Pale yellow to amber solid lumps or flakes
Softening Point (Ring & Ball)	100 - 130 °C
Acid Value	≤ 30 mg KOH/g
Color (Gardner)	≤ 8
Solubility	Soluble in common organic solvents (toluene, ethyl acetate)

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