ChemicalBook CAS DataBase List Polyisobutene

Polyisobutene

Product NamePolyisobutene
CAS9003-27-4
CBNumberCB00130819
MFC4H8
MW56.10632
EINECS618-360-8
MDL NumberMFCD00084436
MOL File9003-27-4.mol
MSDS FileSDS

Chemical Properties

Melting point	54-56 °C
Boiling point	300 °C
Density	0.92 g/mL at 25 °C (lit.)
Tg	-61
Tg	-62
Tg	-64
Tg	-75
refractive index	n20/D 1.51
Flash point	>212
Flash point	>482
form	slab/chunk
Viscosity	1.08 - 1.43(Intrinsic viscosity)
Viscosity	2.42 - 3.00(Intrinsic viscosity)
Viscosity	250cp (20C)
Viscosity	3.90 - 5.05(Intrinsic viscosity)
Stability	Stability Combustible. Incompatible with strong oxidizing agents.
InChI	InChI=1S/C4H8/c1-4(2)3/h1H2,2-3H3
InChIKey	VQTUBCCKSQIDNK-UHFFFAOYSA-N
SMILES	C=C(C)C
Substances Added to Food (formerly EAFUS)	POLYISOBUTYLENE (MIN M W 37,000)
FDA 21 CFR	172.615; 175.125; 175.300
EWG's Food Scores	1
FDA UNII	POLYISOBUTYLENE (1300 MW) (241BN7J12Y) POLYISOBUTYLENE (2600000 MW) (4GAS6381TX) POLYISOBUTYLENE (85000 MW) (7X53O5S2ZY) POLYISOBUTYLENE (1000 MW) (5XB3A63Y52) POLYISOBUTYLENE (75000 MW) (596C33NS2J)
EPA Substance Registry System	Polyisobutylene (9003-27-4)

Safety

Safety Statements	24/25
WGK Germany	3
RTECS	UD1010000
TSCA	TSCA listed
HS Code	39022000
Hazardous Substances Data	9003-27-4(Hazardous Substances Data)

Polyisobutene Price

Product number	Packaging	Price	Product description	Buy
Sigma-Aldrich 181455	100g	$194	Polyisobutylene average Mw ~500,000, average Mn ~200,000 by GPC/MALLS, average Mv ~420,000	Buy
Sigma-Aldrich 1546966	1g	$312	Polyisobutylene United States Pharmacopeia (USP) Reference Standard	Buy
scipoly 684	100g	$25	Polyisobutylene	Buy
scipoly 684	250g	$50	Polyisobutylene	Buy
scipoly 682	100g	$25	Polyisobutylene	Buy

Polyisobutene Chemical Properties,Usage,Production

Description

Polyisobutene is often referred to as butyl rubber and is produced in a wide range of molecular weights; the lower molecular weight Polyisobutenes are very viscous, soft, and tacky semi-liquids while the higher molecular weight Polyisobutenes are tough and elastic rubbery solids.

Chemical Properties

Polyisobutene is resistant to most acids, alkalis and aqueous solutions, as would be expected from its saturated hydrocarbon structure and absence of tertiary hydrogen atoms. The lack of tertiary hydrogen atoms renders polyisobutene more resistant to oxidation than polypropylene; also, the less numerous and partially shielded methylene groups in polyisobutene are less reactive than those in polyethylene. However, polyisobutene is rather susceptible to thermal degradation since chain scission is favoured by the greater stability of the resultant tertiary free radical:free radical of PolyisobutylenePolyisobutene may be chlorinated but the reaction is accompanied by severe degradation.

Physical properties

Polyisobutene is non-crystalline when unstretched and is therefore soluble at room temperature in hydrocarbons and halogenated hydrocarbons.

Uses

In cosmetics and personal care products, Polyisobutene is used in the formulation of lipsticks, it can also be found in eye and facial makeup, skin care products and suntan products.

Preparation

Polyisobutene is a class of organic polymers prepared by polymerization of isobutene. They are typically colorless gummy solids.

Effects

Polyisobutene can increase the thickness of the lipid (oil) portion of cosmetics and personal care products. It dries to form a thin coating on the skin, hair or nails, and is used to hold together the ingredients of a compressed cake.

Preparation Products And Raw materials

Polyisobutene Supplier

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Weibang Biotechnology Co., Ltd	+8615531157085	abby@weibangbio.com	China	8813	58
Hebei Zhuanglai Chemical Trading Co.,Ltd	+8613343047651	admin@zlchemi.com	China	3002	58
Huaian Banting Trading Co., Ltd.	+86-13102576090	sales5@bantingpeptide.com	China	35	58
Hebei Chuanghai Biotechnology Co,.LTD	+86-13131129325	sales1@chuanghaibio.com	China	5893	58
Anhui Ruihan Technology Co., Ltd	+8617756083858	daisy@anhuiruihan.com	China	973	58
Hebei Jingbo New Material Technology Co., Ltd	+8619931165850	hbjbtech@163.com	China	1000	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	20287	58
Hebei Saisier Technology Co., LTD	+86-18400010335 +86-18034520335	admin@hbsaisier.cn	China	1015	58
Yujiang Chemical (Shandong) Co.,Ltd.	+86-17736087130 +86-18633844644	catherine@yjchem.com.cn	China	985	58
Hebei Longbang Technology Co., LTD	+86-18633929156 +86-18633929156	admin@hblongbang.com	China	941	58

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Polyisobutene

Chemical Properties

Safety

Polyisobutene Price

Polyisobutene Chemical Properties,Usage,Production

Preparation Products And Raw materials

Polyisobutene Supplier

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