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The definitions presented here are merely general descriptions that may prove helpful. They do not supersede the definitions of technical terms as they are used in specific documents, agreements, proposals, offerings or patents.

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A

Antiblock Additive

An additive used to reduce adhesion between polymer film layers during storage or handling.

Antistatic Agent

An additive used to reduce static charge buildup on polymer surfaces.

C

Chain Extender

A reactive additive used to rebuild or extend polymer molecular chains.

Clouding Agent

An additive used to produce a cloudy or opaque appearance in beverages.

Compatibilizer

An additive used to improve compatibility between immiscible polymers or polymer blends.

Coupling Agent

An additive used to improve adhesion between filler surfaces and a polymer matrix.

Crosslinking Agent

A material used to create links between polymer chains for improved performance.

D

Demolding Agent

A product used to help molded parts release cleanly from the mold.

E

External Lubricant

A lubricant used to reduce sticking between molten polymer and metal processing surfaces.

F

Flame Retardant

An additive used to reduce ignitability or slow flame spread in materials.

H

Heat Stabilizer

An additive used to protect polymers from thermal degradation during processing or use.

I

Impact Modifier

An additive used to improve toughness and resistance to brittle failure.

Internal Lubricant

A lubricant that improves polymer flow by reducing internal friction during processing.

M

Masterbatch

A concentrated mixture of additives or pigments dispersed in a carrier resin.

Melt Flow Index

A measure of how easily a thermoplastic polymer flows under specified conditions.

N

Nucleating Agent

An additive used to control crystallization and improve stiffness or cycle time.

P

Polymer Plasticizer

An additive used to increase flexibility and reduce brittleness in polymer systems.

Polymer Release Agent

An additive used to improve demolding and reduce sticking during processing.

Processing Aid

An additive used to improve melt processing, extrusion, or surface finish.

R

Reinforcing Filler

A filler used to improve strength, stiffness, or wear resistance of a polymer.

S

Scorch Retarder

An additive used to delay premature curing during processing.

Slip Agent

An additive used to reduce surface friction and improve handling of films or molded parts.

U

UV Stabilizer

An additive used to reduce degradation caused by ultraviolet exposure.