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"A part of the renowned HC Kothari Group, we are the largest producer of premium quality Polybutene in India. Since our founding in 1990, the company has enjoyed a strong market position in India with a rapidly growing brand across the globe that represents quality, customer responsiveness, dependability and a commitment to the environment.

In the financial year 2007-2008, Kothari Petrochemicals commissioned a second plant in Manali that doubled our production capacity to 22,000 MT per annum in order to supply Polybutene worldwide. We have offices in Chennai, Manali, Mumbai and Belgium, and supply to customers in 20 countries around the world."

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KVIS is the trade name of polyisobutylene produced by Kothari Petrochemicals Limited. KVIS is a linear polymer of isobutylene of different molecular weights, and possesses excellent resistance to oxidative and thermal degradation. Polyisobutylene is chemically inert, hydrophobic and impermeable to water vapor or gas.The KVIS is a synthetic liquid polymer, which is a straight chain hydrocarbon structure of Polyisobutylene that is produced in a variety of grades through a rigid low temperature polymerization process. It is derived from raw material consisting of mainly Isobutylene. The compact straight chain structure results in brilliant moisture and barrier properties and is soluble in a wide range of organic solvents.All KVIS grades are colorless, non-staining and have little or no odor.Polyisobutylene belongs to the group of viscous and non-drying liquid polymers. The grades vary from low viscous oil to a high viscous liquid and with a degree of tackiness that is on the higher side. All these unique characteristics and its compatibility with a wide range of organic materials augment the performance properties of a wide range of products in various industries, and have made it one of the most sought after product in the world.

KVIS

KVIS 30 is the trade name of Kothari’s slightly higher molecular weight polyisobutylene, ranging from 1250 to 1350. KVIS 30 is widely used by our customers as a cling additive in stretch / cling film manufacturing (either incorporated directly into film extrusion or through a PIB masterbatch) and sealants.

KVIS 30

KVIS 10 is the trade name of Kothari’s polyisobutylene product with molecular weight ranging from 950 to 1000. Produced in our state of the art plant complex. KVIS 10 is transparent, free of particles, and is a leading choice for a wide range of applications.

KVIS 10

KVIS 100 is the trade name of Kothari’s polyisobutylene with molecular weight ranging from 1700 to 1800. KVIS 100 is widely used as a viscosity index improver in engine oil additives and grease, and in high molecular weight PIBSA manufacturing.

KVIS 100

KVIS 200 is the trade name of Kothari’s polyisobutylene with molecular weight ranging from 2300 to 2500. KVIS 200 possesses high shear stability and oxidative stability, which makes it the most suitable grade for speciality lubricants and grease. Explore here to see how our KVIS 200 is ideally suited as a high molecular weight dispersant, oil additive, thickener or even tackifier.

KVIS 200

Kothari Petrochemicals (HC Kothari Group)

"A part of the renowned HC Kothari Group, we are the largest producer of premium quality Polybutene in India. Since our founding in 1990, the company has enjoyed a strong market position in India with

Kothari Petrochemicals - Polybutene - Quality - Dependability

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KVIS 100 is the trade name of Kothari’s polyisobutylene with molecular weight ranging from 1700 to 1800. KVIS 100 is widely used as a viscosity index improver in engine oil additives and grease, and i

KVIS - 100 - Kothari Petrochemicals - Dispersant - Plasticizer

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	Value	Units	Test Method / Conditions
Molecular Weight -Number Average	1700 ±100	—	GPC
Viscosity at 100°C	2000 ± 100	cSt	ASTM D-445
Viscosity Index	180	—	ASTM D-2270
Specific Gravity (15°C)	0.90 - 0.92	—	ASTM D-1298
Flash Point ( COC )	min.230	°C	ASTM D-92
Flash Point ( PMCC )	min.180	°C	ASTM D-93
Color	max.50	APHA	ASTM D-1209
Acid Number	0.02	mg. KOH/Gram	ASTM D-974
Water Content	max.40	PPM	ASTM D-6304

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