What is SIS rubber?

SIS family of polymers is high performance thermoplastic elastomers with a combination of high strength, low hardness and low viscosity for easy thermoplastic processing as a melt or in solution.

What is SBS polymer?

What is SBS? Styrene-butadiene-styrene (SBS) is a class of polymers commonly used worldwide since the 1970s to enhance asphalt binder performance in the paving and roofing industries. The styrene and butadiene monomers, chemical precursors, are arranged in blocks of polystyrene and polybutadiene.

What is styrene isoprene styrene copolymer?

In styrene-butadiene and styrene-isoprene block copolymers. SBS and SIS are thermoplastic elastomers, blends that exhibit both the elasticity and resilience of butadiene rubber or isoprene rubber (natural rubber) and the ability of polystyrene to be molded and shaped under the influence of heat.

What is styrene isoprene styrene?

Styrene Isoprene Styrene (SIS) polymers are based on styrene and isoprene and has the lowest hardness and lowest viscosity of all the styrenic block copolymers. These thermoplastic resins are easy to process and compatible with various tackifying chemistries.

What is isoprene copolymer?

Styrene-isoprene block copolymers (SIS) are large volume, low priced commercial thermoplastic elastomers (TPE) which are produced by living ionic copolymerization by sequentially introducing styrene, 2-methyl-1,3-butadiene (isoprene), and styrene into the reactor.

What is TPE made of?

Thermoplastic elastomers (TPE), sometimes referred to as thermoplastic rubbers, are a class of copolymers or a physical mix of polymers (usually a plastic and a rubber) that consist of materials with both thermoplastic and elastomeric properties.

What is the difference between SBS and SBR?

SBR: “Rifle having a barrel or barrels of less than 16 inches in length.” SBS: “Shotguns having a barrel or barrels of less than 18 inches in length.” Both stock and barrel altered.” Both have an overall length less than 26-in, and both are intended to be fired from the shoulder.

How is SBS manufactured?

SBS is made with an advanced chemistry called living anionic polymerization. SBS is also a type of unique material called a thermoplastic elastomer. These are materials that behave like elastomeric rubbers at room temperature, but when heated, can be processed like plastics.

Is isoprene the same as butadiene?

isoprene, also called 2-methyl-1,3-butadiene, a colourless, volatile liquid hydrocarbon obtained in processing petroleum or coal tar and used as a chemical raw material. The formula is C5H8.

Is polyisoprene a rubber?

polyisoprene, polymer of isoprene (C5H8) that is the primary chemical constituent of natural rubber, of the naturally occurring resins balata and gutta-percha, and of the synthetic equivalents of these materials.