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Topic: Dicyclopentadiene

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	Cycloolefin purification method and polymerization composition - Patent 4584425
		53-92000 and 53-111399 disclose soluble polymers of dicyclopentadiene.
		This corresponds to a dicyclopentadiene to tungsten compound ratio of 1000:1.
		Dicyclopentadiene monomer is polymerized with a three component olefin metathesis catalyst system whereby the length of the gel time relative to the cure time can be controlled by the proportions of the catalyst system components.
	www.freepatentsonline.com /4584425.html (15869 words)

	Dicyclopentadiene - Wikipedia, the free encyclopedia
		Dicyclopentadiene is the chemical compound with the formula C
		Dicyclopentadiene is coproduced in large quantities in the steam cracking of naphtha and gas oils to ethylene.
		Dicyclopentadiene is a monomer in polymerization reactions for example as copolymer with ethylene or styrene utilizing only the norbornene double bond.
	en.wikipedia.org /wiki/Dicyclopentadiene (212 words)

	Process for producing halogen-containing unsaturated polyester - Patent 4569986 (Site not responding. Last check: 2007-10-11)
		Such being the case, dicyclopentadiene which serves a useful purpose of not lowering the concentration of.alpha.,.beta.-ethylenically unsaturated dicarboxylic acid but also is low in cost has recently been attracting attention as an unsaturated starting material, and a fire-retardant polyester resin formed by halogenating an unsaturated polyester based on it has been published.
		The dicyclopentadiene-terminated, unsaturated polyester which is to be halogenated in the present invention is obtained by the reaction among (a) dicyclopentadiene, (b) an.alpha.,.beta.-ethylenically unsaturated dicarboxylic acid or its anhydride and (c) a polyhydric alcohol, along with (d) tetrahydrophthalic acid or its anhydride, if desired, in accordance with the conventionally known method.
		The above-described (a) dicyclopentadiene, (b).alpha.,.beta.-ethylenically unsaturated dicarboxylic acid and (c) polyhydric alcohol, along with other dicarboxylic acid as the case may be, are allowed to undergo reaction to produce an unsaturated polyester.
	www.freepatentsonline.com /4569986.html (2685 words)

	Chemical Fact Sheets -- Dicyclopentadiene
		Dicyclopentadiene is not a common ingredient of products used in homes.
		It is also important to consider the length of exposure to the chemical; the amount of chemical exposure; and whether the chemical was inhaled, touched, or eaten.
		If you develop symptoms after you’ve been exposed to dicyclopentadiene, or if you suspect that you may have been exposed to high levels of this chemical, a doctor can use tests of your lungs, kidneys and nervous system to assess possible damage.
	www.dhfs.state.wi.us /eh/ChemFS/fs/dicyclopen.htm (667 words)

	Chemistry 210 Experiment 9
		Safety: Cyclopentadiene (and its dimer, dicyclopentadiene) is an irritant, is flammable, has an unpleasant odor and is harmful if inhaled — avoid breathing its vapors.
		Turn on the condenser water and heat the dicyclopentadiene until it refluxes briskly.
		C to produce dicyclopentadiene, using the Diels-Alder reaction, where one cyclopentadiene molecule is the diene and the other cyclopentadiene molecule is the dienophile.
	www.miracosta.cc.ca.us /home/dlr/210exp9.htm (1121 words)

	Dicyclopentadiene producers price capacity market demand growth uses outlook
		Millions of pounds per year of dicyclopentadiene* (DCPD) recovered from the C5 fraction co-produced with ethylene by steam cracking of naphthas and gas oils.
		One bright spot on the horizon is dicyclopentadiene alcohol, synthesized from DCPD.
		Although this is a known chemical structure, Texmark, this year announced a new low-cost process to manufacture this derivative.
	www.the-innovation-group.com /ChemProfiles/Dicyclopentadiene.htm (670 words)

	Dicyclopentadiene - Shell Chemicals (Site not responding. Last check: 2007-10-11)
		Shell chemicals companies are well-established suppliers of dicyclopentadiene, with a long history of high quality and reliable product supply.
		Dicyclopentadiene is used in many products, ranging from high quality optical lenses through to flame retardants for plastics and hot melt adhesives.
		As a chemical intermediate it is used in insecticides, as a hardener and dryer in linseed and soybean oil, and in the production of EPDM (ethylene propylene diene monomer) elastomers, metallocenes, resins, varnishes, and paints.
	www.shellchemicals.com /DCPD/1,1098,1225,00.html (183 words)

	Scottsbluff train derailment (Site not responding. Last check: 2007-10-11)
		Although the agency does not have enforcement authority related to these odor aspects, we are aware of the concerns and have asked BNSF to try to find effective methods of addressing the odor problems.
		On March 8, 2001, officials from the Agency for Toxic Substances and Disease Registry (ATSDR), which is a federal agency that evaluates health impacts from incidents such as this, participated in a public meeting at Scottsbluff City Hall.
		At the meeting, Dr. Mike Allred, an ATSDR toxicologist, indicated that odors emanating from the site were from dicyclopentadiene, not benzene.
	www.deq.state.ne.us /Gen.nsf/Pages/Update1 (1238 words)

	Beta-pinene polymer -toluene and xylene alkylated with dicyclopentadiene Registration
		Beta-pinene polymer -toluene and xylene alkylated with dicyclopentadiene Registration
		Beta-pinene polymer -toluene and xylene alkylated with dicyclopentadiene - Registration, import consent and bans
		Information on the status of this pesticide as legally registered for use, banned, cancelled or severely restricted for countries for which PAN has data.
	www.pesticideinfo.org /Detail_ChemReg.jsp?Rec_Id=PC34019 (438 words)

	Perfumer & Flavorist Magazine
		investigated the effect of reaction conditions on addition of carboxylic acids (acetic and propionic) and alcohols (allylalcohol) to dicyclopentadiene.
		The catalyst applied in the case of the addition of acids to dicyclopentadiene was sulfuric acid, and methanesulphonic acid in the case of the allylalcohol addition.
		The products of carboxylic acid additions to dicyclopentadiene were further hydrogenated.
	www.perfumerflavorist.com /articles/1513867.html (643 words)

	Ferrocene
		Cyclopentadiene undergoes a 4+2 cycloaddition to form dicyclopentadiene.
		Dicyclopentadiene boils at 170C and cyclopentadiene boils at 42.5 C. For efficiency, the dicyclopentadiene dimer is thermally cracked using a fractional distillation apparatus in advance by the teaching assistant.
		While this is usually done on the day of the experiment, we have found that cyclopentadiene may be stored without significant dimerization in a foil covered container in a freezer for several days.
	imr.chem.binghamton.edu /labs/ferrocene/ferrocene.html (3209 words)

	Resolution Specialty Materials :: Composite Polymers - Dicyclopentadiene Resins
		Resolution Specialty Materials' RSM 730-Series polyester resins based on Dicyclopentadiene (DCPD) are used in applications where good chemical and water resistance coupled with lower shrink and better part surface aesthetics are required.
		DCPD based resins are a popular choice for automotive and marine applications where smooth surfaces are desired.
		Select a product to view the product's home page.
	www.resins.com /RSM/products/composites/Dicyclopentadiene_Resins.asp (117 words)

	FAQs
		Where can I learn more about the chemistry and use of dicyclopentadiene and cyclopentadiene?
		For specific details you may contact our Technical Services Specialist.
		A good summary of the chemistry and use of cyclopentadiene and dicyclopentadiene can be found in the Kirk-Othmer Encyclopedia of Chemical Technology published by John Wiley & Sons.
	www.dow.com /aromatics/tech/faq.htm (418 words)

	Product overview - Shell Chemicals (Site not responding. Last check: 2007-10-11)
		Dicyclopentadiene (DCPD) is produced as part of the separation process of crude C5 materials from pyrolysis gasoline (pygas), both of which are by-products of ethylene manufacture.
		Major production sites on both sides of the Atlantic, resulting in excellent supply flexibility and reliability.
		Do you have any questions or comments about this page?
	www.shellchemicals.com /DCPD/1,1098,1498,00.html (200 words)

	dicyclopentadiene - chemical product info at CHEMINDUSTRY.RU
		dicyclopentadiene - chemical product info at CHEMINDUSTRY.RU dicyclopentadiene
		When above 100°C dicyclopentadiene decomposes to give cyclopentadiene.
		Dicyclopentadiene is manufactured as a by-product in the steam cracking or from pyrolysis of naphtha and gas oils to ethylene and propylene.
	www.chemindustry.ru /eng/branches/product.php?prod=23 (133 words)

	NTP Acute Toxicity Studies for Dicyclopentadiene linseed oil copolymer
		NTP Acute Toxicity Studies for Dicyclopentadiene linseed oil copolymer
		U.S. National Toxicology Program acute toxicity studies for Dicyclopentadiene linseed oil copolymer
		Acute toxicity summary rating for this chemical using NTP data: No NTP Studies
	www.pesticideinfo.org /List_NTPStudies.jsp?Rec_Id=PC36667 (112 words)

	Dicyclopentadiene (DCPD) Plastic Resin
		Home > Generics > Dicyclopentadiene (DCPD) Plastic Resin
		DCPD Home - Overview of DCPD - DCPD Suppliers - DCPD Product List
		Your online resource for Dicyclopentadiene (DCPD) plastic resin information including features and applications, design and processing data, polymer manufacturers and property datasheets.
	www.ides.com /generics/DCPD.htm (93 words)

	Freeport Fuel Oil
		The main application of Freeport Fuel Oil is to be blended into fuel oils such as bunker fuels and fluxants.
		Alternatively, Freeport Fuel Oil could be used as a source for dicyclopentadiene for a variety of (resin-) applications, as well as a source for naphthalene or mixtures of naphthalene and methylnaphthalene for concrete plasticizers, phthalic anhydride and insecticides.
		IBP = Initial Boiling Point, FBP = Final Boiling Point
	www.dow.com /aromatics/prod/fuel_freeport.htm (151 words)

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