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Topic: Butyl

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	Butyl - Wikipedia, the free encyclopedia
		It is derived from either of the two isomers of the alkane called butane.
		Butyl is the largest substituent for which trivial names are commonly used for all isomers.
		As the number of carbons in an alkyl chain increases, butyl is the last to be named historically instead of through Greek numbers.
	en.wikipedia.org /wiki/Butyl (318 words)

	Ethyl Butyl Ketone
		Ethyl butyl ketone is a clear, colorless liquid with a strong, fruity odor.
		Before a worker is placed in a job with a potential for exposure to ethyl butyl ketone, a licensed health care professional should evaluate and document the worker's baseline health status with thorough medical, environmental, and occupational histories, a physical examination, and physiologic and laboratory tests appropriate for the anticipated occupational risks.
		Containers of ethyl butyl ketone should be protected from physical damage and ignition sources, and should be stored separately from acetaldehyde, perchloric acid, and oxidizing agents such as, peroxides, chlorates, perchlorates, permanganates, and nitrates.
	www.osha.gov /SLTC/healthguidelines/ethylbutylketone/recognition.html (3607 words)

	Butyl Rubber - Polyisobutylene
		Butyl rubber, also known as polyisobutylene is a synthetic rubber or elastomer.
		The typical composition of butyl rubber is approximately 98% polyisobutylene, with the balance being isoprene.
		Halogenated butyl rubbers such as chlorinated (chlorobutyl) and brominated (bromobutyl) were an axtension of butyl rubber developed in the 1950’s and 60’s.
	www.azom.com /details.asp?ArticleID=1549 (282 words)

	Butyl Acetates (Cicads 64, 2005)
		Butyl acetate recovery rates were measured in two types of canister used to sample atmospheric air for analysis of volatile organic compounds, including butyl acetate, at different relative humidities.
		Butyl acetate used as a drilling fluid is likely to evaporate to the atmosphere, although some may disperse to the water column (Gosink et al., 1991).
		Butyl acetate was found to be off-gassed from a sealing wax on a cork floor (Rothweiler et al., 1992).
	www.inchem.org /documents/cicads/cicads/cicad64.htm (13357 words)

	Welcome to All Seals Inc.
		Butyl rubber is an all petroleum product made by co-polymerizing isobutylene and just enough isoprene to obtain the desired degree of unsaturation necessary for vulcanization.
		Until the introduction of ethylene propylene rubber, butyl was the only elastomer which was satisfactory for Skydrol 500 service over a temperature range of -65 to +225 degrees F (-54 to +107 degrees C).
		In addition, butyl has excellent resistance to gas permeation which makes it particularly useful for vacuum applications, and accounts for its wide use in the manufacture of inner tubes and the inside layer of tubeless tires.
	www.allsealsinc.com /butyl.htm (135 words)

	Developmental and testicular toxicity of butyl benzyl phthalate (BBP) in the rat and the impact of study design ...
		Butyl benzyl phthalate is used as a model compound, also in view of the presently ongoing revision of its risk assessment.
		Butyl benzyl phthalate is chosen as the model compound for several reasons.
		Butyl benzyl phthalate (BBP), CAS 85-68-7, molecular weight 312.37, was obtained from Aldrich as a colorless transparent liquid.
	www.mindfully.org /Plastic/BBP-Butyl-Benzyl-Phthalate.htm (7566 words)

	Diam Organics LTD. \| DECAR BUTYL
		DECAR BUTYL is an excellent solvent for nitrocellulose, celluloid, Colophony, Manila copal, benzoin resin, chlorinated rubber, polyvinyl ethyl ether, polycarylates; for phenol formaldehyde, urea formaldehyde, melamine formaldehyde and malelic resins and for Uresin B (carbamate resin).
		DECAR BUTYL has an extremely slow rate of evaporation and thus, it a marked increase in drying time is to be avoided, the amounts permissible in fast drying nitrocellulose and cellulose ether lacquers are very small.
		Additions of up to 5% of DECAR BUTYL may be made to stoving lacquers as phenol formaldehyde and urea formaldehyde lacquers without notably increasing their drying time.
	www.diamglobal.com /decarbutyl.htm (374 words)

	Conjugated diene butyl - Patent 3965213
		There is then formed the halogenated butyl rubber and a hydrogen halide, the copolymer containing up to one or somewhat more, especially in the case of bromine, halogen atoms per double bond initially present in the copolymer.
		However, in dehydrohalogenating the halogenated butyl rubber, according to the present invention, zinc chloride is thought to be a by-product in the reaction.
		By proper choice of the butyl employed in halogenation, it is possible to alter the structure of the conjugated diene units and by this means adjust their reactivity in reactions involving conjugated diene chemistry.
	www.freepatentsonline.com /3965213.html (4445 words)

	The 2006-2011 World Outlook for Butyl, Polychloroprene, and Stereo Polyisoprene
		Depending on original data sources used, the definition of “butyl, polychloroprene, and stereo polyisoprene elastomers” is established.
		It is for this definition of butyl, polychloroprene, and stereo polyisoprene elastomers that the aggregate latent demand estimates are derived.
		Based on the aggregate view of butyl, polychloroprene, and stereo polyisoprene elastomers as defined above, data were then collected for as many similar countries as possible for that same definition, at the same level of the value chain.
	www.mindbranch.com /Outlook-Butyl-Polychloroprene-R307-10757 (2879 words)

	[No title]
		Butyl is a common term used for the isobutylene isoprene elastomer.
		As the name implies, butyl is comprised of isobutylene with a small amount of isoprene.
		Butyl is capable of providing high energy absorption (dampening) and good hot tear strength.
	www.sealcompany.com /mrbutyl.html (100 words)

	Application
		Butyl polymers are used in several of these components, including the innerliner, non-staining fl sidewall, white sidewall, white sidewall coverstrip and are being evaluated in tread compounds.
		Chlorination and bromination of the butyl polymer backbone results in chlorobutyl and bromobutyl polymers that can be co-vulcanized with other highly unsaturated rubbers for tire and other applications.
		One of the early applications for butyl polymers, inner tubes, still utilize regular butyl and chlorobutyl to provide maximum inflation pressure retention for truck, agricultural, industrial and specialty tires.
	www.butylrubber.com /Public_Products/Butyl/Butyl_Polymers/Worldwide/Applications/Btl_App_ApplicationInfo_Tire.asp (355 words)

	Butyl Rubber Hood, Kit and Infant Protective Pod (Site not responding. Last check: 2007-11-06)
		Butyl rubber offers an extremely high level of protection against all known chemical agents in solid, liquid, and gaseous forms for extended durations of time.
		Butyl is easily cleaned with a soap solution allowing for multiple uses and prolonged life.
		Butyl gloves are integrated into the system to allow for adults to safely handle their babies and even change diapers.
	www.kicanada.com /butyl.htm (203 words)

	pondtechnology.com - BUTYL POND LINERS
		PondTechnology Butyl is made from the same premium synthetic Butyl rubber recommended by leading European water gardening experts.
		Larger projects should be lined with 40 mil Butyl for enhanced resistance to abuse since the thicker sheet offers significantly greater strength with only a little loss of flexibility.
		Although we advise against field seaming pond liners unless the project is too large to be lined with a single sheet of rubber, durable seams can be made by using a combination of seam tape and repair tape.
	www.pondtechnology.com /pages/butyl.html (1549 words)

	Roofing (Site not responding. Last check: 2007-11-06)
		The attributes of BUTYL, is weld characteristics as perfected for reservoirs and tanking, apply equally to its use as an impervious membrane for FLAT ROOF SYSTEMS.
		The BUTYL method of application is unique in so far as the full roof covering is prefabricated as fully welded units in ideal factory conditions, then delivered and installed in one operation.
		The Butyl system can be laid directly on all used substrates such as concrete, timber and metal deckings.
	www.midland-butyl.co.uk /bp/nhpage.asp?pcat=roofing&subs=true&lm= (673 words)

	Ethylene Glycol Monobutyl Etehr, Butyl Glycol, Butyl Cellosolve, , 2-Butoxy Ethanol
		Butyl Glycol (2-Butoxy Ethanol) is employed primarily in the production of lacquers based on nitrocellulose, cellulose ethers and chlorinated rubber.
		Solutions of nitrocellulose in Butyl Glycol may be diluted with large quantity of white spirit, aromatic hydrocarbons or ethanol without adversely affecting the film property.
		Since Butyl Glycol (2-Butoxy Ethanol) dries lacquer coatings very slowly, it is ideal for the preparation of brushing lacquers based on cellulose esters, cellulose ethers and chlorinated rubber.
	www.advancepetro.com /egmbe.htm (256 words)

	Butyl Products - Website Privacy Notice
		Butyl Products Ltd. ("Butyl") uses information collected from its customers and visitors to its web sites to enhance the services we offer to you and to improve your online experience.
		Butyl has implemented several security measures to ensure that your personal information is protected.
		In addition, Butyl uses a firewall to prevent third parties from accessing your personal information and other physical measures to prevent Butyl users from accessing the personal information of other users.
	www.butylproducts.co.uk /Privacy (277 words)

	tert-Butyl Alcohol
		Rats given nontoxic doses of tert-butyl alcohol (0.0163 mol/kg) showed a marked decline in performance test scores; tert-butyl alcohol caused a narcotic effect estimated to be 4.8 times greater than that of ethanol [Clayton and Clayton 1982, p.
		Chemical protective clothing should be selected on the basis of available performance data, manufacturers' recommendations, and evaluation of the clothing under actual conditions of use.
		Butyl rubber has been recommended for use against permeation by tert-butyl alcohol and may provide protection for periods greater than 8 hours.
	www.osha.gov /SLTC/healthguidelines/tertbutylalcohol/recognition.html (3943 words)

	EWG Investigation \| U.S. Tap Water Quality Database
		Butyl Benzylphthalate is an industrial solvent and additive used in adhesives, vinyl flooring, sealants, car-care products, and some personal care products.
		Butyl Benzylphthalate remains unregulated in tap water, without a maximum legal limit.
		Under the federal tap water law, water suppliers are not required to routinely test for Butyl Benzylphthalate, and any level is legal in tap water.
	www.ewg.org /tapwater/contaminants/contaminant.php?contamcode=2294 (416 words)

	ap_adhesive15
		Martin Senour Butyl Tape is an elastomeric (butyl rubber) based adhesive/sealant that bonds to various substrates and creates a permanent seal against moisture, dust, and air intrusion.
		If disassembly is desired, the butyl may be removed from non-aged assemblies by grasping the butyl and rapidly (in a snapping motion) pulling it from the substrate surface.
		Any residual butyl material may be removed from the hardest surfaces with 4070 Universal Adhesive Cleaner.
	www.martinsenour-autopaint.com /ap/ap_adhesive15.html (143 words)

	Materials: Butyl (Site not responding. Last check: 2007-11-06)
		An unsaturated copolymer of isobutylene and isoprene (thus the designation IIR), butyl has two defining traits: (1) it is composed entirely of petroleum, limiting its usefulness around hydrocarbons (since "likes dissolve likes"); and (2) it offers low gas permeability, making it ideal for vacuum seals.
		Though ethylene propylene is now used rather than butyl for a number of applications, butyl is still widely used in hydraulic systems.
		Butyl offers stronger resistance to sunlight and ozone than isoprene alone; presence of the saturated isobutylene in the polymer chain makes this possible.
	www.rlhudson.com /butyl.html (99 words)

	Stik-II Products: Pressure sensitive tape and sealing solutions for all your mounting, bonding, gasketing and ...
		Butyl tapes are available as a solid butyl rubber pressure sensitive tape supplied in roll form in a variety of widths and thicknesses.
		Tapes are also available with a highly compressible PVC foam core encapsulated with high tack butyl adhesive/sealant and with butyl rubber adhesive on an aluminum foil backing.
		Aluminum foil tapes with acrylic, rubber and butyl rubber adhesives serve as all-weather duct tapes for sealing duct work including fiberglass and rigid preformed aluminum foil-faced duct systems.
	www.stik-2.com /specialty_tapes.htm (501 words)

	LANXESS - Butyl Rubber
		Butyl Rubber (BTR), an important Business Unit for LANXESS with an extremely promising future, produces high-quality rubber products for the tire and rubber industry.
		Butyl rubber is currently the only rubber that is impermeable to air.
		Regular butyl is used in automotive hoses, bicycle tires and balls.
	www.lanxess.com /lcs/en/portfolio/rubber/butyl_rubber (135 words)

	Aidsmap \| Butyl DNJ (Site not responding. Last check: 2007-11-06)
		Butyl DNJ is a drug artificially derived from plant sugars.
		In animals butyl DNJ also caused liver problems, decreased platelet counts and eye cataracts, but none of these have yet been observed in humans.
		“The tolerability and pharmacokinetics of N butyl deoxynojirimycin in patients with advanced HIV disease (ACTG 100)”.
	www.aidsmap.com /en/docs/0C9D45B0-0B16-4A0F-8751-E6B522FEF0D6.asp (553 words)

	Butyl benzyl phthalate (CASRN 85-68-7), IRIS, Environmental Protection Agency
		Basis -- Based on statistically significant increase in mononuclear cell leukemia in female rats; the response in male rats was inconclusive and there was no such response in mice.
		A bioassay was performed by the NTP (1982) to evaluate the carcinogenic potential of orally administered butyl benzyl phthalate (BBP) to both rats and mice.
		Dietary levels of 0, 6000, and 12,000 ppm BBP were fed to groups of 50 male and 50 female F344 rats and 50 male and 50 female B6C3F1 mice for 103 weeks.
	www.epa.gov /iris/subst/0293.htm (2466 words)

	butyl acetate - Search Results - MSN Encarta
		Butyl Alcohol, organic chemical with the general formula C
		Contraceptive Injection, drug containing one or more female sex hormones that is injected into the muscles of a woman’s arm or buttocks to prevent...
		Search for books about your topic, "butyl acetate"
	encarta.msn.com /butyl+acetate.html (105 words)

	Cyhalofop-butyl. Sept 27, 2001. Pesticide tolerances for Emergency Exemptions. Final Rule. Federal Register.
		Because these tolerances are being approved under emergency conditions, EPA has not made any decisions about whether cyhalofop- butyl meets EPA's registration requirements for use on rice or whether a permanent tolerance for this use would be appropriate.
		Conclusion Therefore, the tolerance is established for combined residues of cyhalofop-butyl, 2-[4-(4-cyano-2-fluorophenoxy)phenoxyl]propanoic acid, butyl ester (R) plus the cyhalofop-acid and di-acid metabolites in or on rice grain at 0.03 ppm and rice straw at 8.0 ppm.
		Time-limited tolerances are established for combined residues of cyhalofop-butyl, 2-[4-(4-cyano-2- fluorophenoxy)phenoxyl]propanoic acid, butyl ester (R), plus the cyhalofop-acid and di-acid metabolites in connection with use of the pesticide under section 18 emergency exemptions granted by the EPA.
	www.fluoridealert.org /pesticides/cyhalofop-butyl.fr.sep27.01.htm (5451 words)

	CLU-IN.ORG \| Contaminant Focus: METHYL TERTIARY BUTYL ETHER (MTBE), Chemistry and Behavior
		Methyl tertiary butyl ether (MTBE, CAS No. 1634-04-4) is an ether compound made by combining methanol and isobutylene.
		MTBE is a liquid, colorless, volatile organic compound with a terpene-like odor, a vapor pressure of 249 mm Hg at 25º C, a water solubility of 51,000 mg/L, and a specific gravity of 0.74.
		Methyl Tertiary Butyl Ether (MTBE): Advance Notice of Intent to Initiate Rulemaking Under the Toxic Substances Control Act to Eliminate or Limit the Use of MTBE as a Fuel Additive in Gasoline; Advance Notice of Proposed Rulemaking
	www.clu-in.org /contaminantfocus/default.focus/sec/Methyl_Tertiary_Butyl_Ether_(MTBE)/cat/Chemistry_and_Behavior (604 words)

	PRESS RELEASE Kraton Revolutionizes Hot Melt Butyl Sealant Applications (Site not responding. Last check: 2007-11-06)
		The addition of this Kraton® G hydrogenated SBC (HSBC) to hot melt butyl sealants improves both their high temperature slump and creep resistance while maintaining excellent processability.
		Conventional hot melt butyl sealants are 100 percent solid thermoplastics, typically exhibiting extremely low moisture vapor transmission with excellent adhesion character, while being applied at very low cost.
		These butyl sealants are used in a variety of sealing applications such as insulated glass windows, automotive weather stripping and automotive taillight lens sealing.
	www.marketwire.com /mw/release_html_b1?release_id=131011 (569 words)

	CLU-IN.ORG \| Contaminant Focus: METHYL TERTIARY BUTYL ETHER (MTBE), Overview
		Methyl tertiary butyl ether (methyl tert-butyl ether, methyl t-butyl ether, or MTBE) is a chemical compound used as a fuel additive in gasoline.
		Given the numerous and diverse sources of potential release into the environment and the problems associated with cleaning it up once it is released, EPA believes a comprehensive approach to such risk must include consideration of either reducing or eliminating the use of MTBE as a gasoline additive.
		EPA has developed a Methyl Tertiary Butyl Ether (MTBE) website that provides extensive general information about the contaminant.
	clu-in.org /contaminantfocus/default.focus/sec/Methyl_Tertiary_Butyl_Ether_(MTBE)/cat/Overview (853 words)

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