Description

Piperylene/Butene/Pentene Copolymer is a synthetic hydrocarbon resin derived from the polymerization of C4 and C5 olefin streams. This versatile copolymer is valued for its excellent tackifying properties, compatibility with various polymers, and ability to modify the performance of adhesive and sealant formulations. It is a critical raw material for manufacturers in the adhesives, sealants, rubber compounding, and hot-melt applications industries seeking to enhance product cohesion, flexibility, and adhesion strength.

Application

• Hot-Melt Adhesives (HMA): Acts as a primary tackifier and modifier to improve wetting, open time, and bond strength.
• Pressure-Sensitive Adhesives (PSA): Used in tapes and labels to provide the necessary balance of tack, peel, and shear resistance.
• Rubber Compounding: Functions as a processing aid and reinforcing resin in tire and industrial rubber goods.
• Sealants and Caulks: Enhances flexibility, adhesion, and durability in construction and automotive sealants.
• Printing Inks: Serves as a resin component to improve gloss, rub resistance, and pigment wetting.
• Asphalt Modification: Used to improve the temperature susceptibility and rheological properties of paving asphalts.
• Polymer Modification: Acts as a compatibilizer and impact modifier in various plastic blends and compounds.

Basic Information

Product Name	Piperylene/Butene/Pentene Copolymer
CAS No.	152698-66-3
Molecular Formula	(C5H8·C4H8·C5H10)x
Molecular Weight	Variable (Typically 1000-3000 g/mol)
Synonyms	C5/C4 Hydrocarbon Resin; Piperylene-Butene Copolymer; C5 Aliphatic Resin; C4/C5 Olefin Copolymer; Hydrocarbon Tackifier Resin; Aliphatic Petroleum Resin; Synthetic Polyterpene Resin; Poly(piperylene/butene)
EINECS	Contact for details

Quality Control

Our Piperylene/Butene/Pentene Copolymer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance, including measurement of softening point, color, melt viscosity, and compatibility. A Certificate of Analysis (COA) detailing all relevant specifications is provided with every shipment to guarantee compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperatures (15-25°C/59-77°F). Keep away from heat sources and open flame. For long-term storage, a nitrogen blanket is recommended to prevent oxidation and maintain product color stability.

Specification

Item	Specification
Appearance	Pale yellow to amber solid
Softening Point (Ring & Ball)	85°C - 115°C
Color (Gardner)	≤ 6
Acid Value	≤ 1.0 mg KOH/g
Saponification Value	≤ 2.0 mg KOH/g
Ash Content	≤ 0.1%

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