polybutene

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      Polybutene is an organic polymer made from a mixture of 1-butene, 2-butene, and isobutylene. Ethylene steam cracker C4s are also used as supplemental feed for polybutene. It is similar to polyisobutylene (PIB), which is produced from essentially pure isobutylene made in a C4 complex of a major refinery. The presence of isomers other than isobutylene can have several effects including: 1) lower reactivity due to steric hindrance at the terminal carbon in, e.g., manufacture of polyisobutenyl succinic anhydride (PIBSA) dispersant manufacture; 2) the molecular weight—viscosity relationships of the two materials may also be somewhat different.


      Applications


      Industrial product applications include sealants, adhesives, extenders for putties used for sealing roofs and windows, coatings, polymer modification, tackified polyethylene films, personal care, polybutene emulsions. Hydrogenated polybutenes are used in a wide variety of cosmetic preparations, such as lipstick and lip gloss. It is used in adhesives owing to its tackiness. Polybutene finds a niche use in bird and squirrel repellents and is ubiquitous as the active agent in mouse and insect "sticky traps".
      An important physical property is that higher molecular weight grades thermally degrade to lower-molecular weight polybutenes; those evaporate as well as degrade to butene monomers which can also evaporate. This depolymerization mechanism which allows clean and complete volatization is in contrast to mineral oils which leave gum and sludge or thermoplastics which melt and spread. The property is very valuable for a variety of applications. For smoke inhibition in two stroke engine fuels, the lubricant can degrade at temperatures below the combustion temperature. For electrical lubricants and carriers which might be subject to overheating or fires, polybutene does not result in increased insulation (accelerating the overheating) or conductive carbon deposits.


      See also


      Polybutene-1
      Oligomers


      Bibliography


      Decroocq, S and Casserino, M, Polybutenes, Chapter 17 in Rudnick (Ed), Synthetics, Mineral Oils, and Bio-Based Lubricants: Chemistry and Technology, CRC Press (2005), Print ISBN 978-1-57444-723-1, eBook ISBN 978-1-4200-2718-1.


      References

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    polybutene

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    Polybutene - Wikipedia

    Polybutene is an organic polymer made from a mixture of 1-butene, 2-butene, and isobutylene. Ethylene steam cracker C4s are also used as supplemental feed for polybutene.

    Polybutene Is Found in Many Skincare Products—But What Does …

    Mar 22, 2023 · Polybutene is a thickening agent found in many cosmetic formulas. We tapped experts to explain everything you need to know about the ingredient. Skip to content

    EWG Skin Deep® | What is POLYBUTENE

    Polybutene is a polymer used as a plasticizer and viscosity agent. See how this product scores for common concerns. Cosmetics and personal care products are not required to be tested for safety before being allowed on the market.

    Polybutene - PubChem

    Polybutene is an organic polymer made from a mixture of 1-butene, 2-butene, and isobutylene. Ethylene steam cracker C4s are also used as supplemental feed for polybutene. It is similar to polyisobutylene (PIB), which is produced from essentially pure isobutylene made in a C4 complex of a major refinery.

    Polybutene | Drug Information, Uses, Side Effects, Chemistry ...

    Know about technical details of Polybutene like: chemical name, chemistry structure, formulation, uses, toxicity, action, side effects and more at Pharmacompass.com.

    POLYBUTENE - Cosmetics Ingredient INCI - SpecialChem

    Polybutene is an excellent formula-manipulating ingredient that works in the background towards binding and thickening cosmetic formulations. It does not have any direct benefits for skin but aids in improving the consistency and feel of products.

    Polybutene - Humblebee & Me

    Aug 19, 2022 · Polybutene is a rich, non-drying emollient that is a fantastic lubricant and gloss-boosting ingredient. It’s vegan, stable, crystal clear, and doesn’t smell like anything. Crystal clear liquid. Viscosities of different polybutene products can vary; mine is from TKB Trading and it’s extremely thick. The CIR has not stated an upper allowable limit.

    Polybutene - Cosmetics Info

    Polybutene is a light colored, nondrying, sticky liquid. In cosmetics and personal care products, it is used in the formulation of lipstick, eye makeup and skin care products. Why Is It Used? Polybutene functions as a binder, epilating agent and viscosity increasing agent – nonaqueous.

    Polybutene, PB 6, PB 8, PB 10, PB 12, PB 16, PB 20 - Soltex

    Soltex polybutene provides a variety of molecular weight derivative compositions for lubricant oils. They offer good high temperature properties and superior low temperature properties compared to bright stock. They are clean-burning and smokeless, …

    Pesticides - Fact Sheet for Polybutene resins - US EPA

    Polybutene is a non-drying, sticky polymer which is registered for use as a bird and squirrel repellent. When birds land on treated objects or surfaces, they dislike the unpleasant sticky sensation and usually do not return.