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Topic: Polychloroprene

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	Article - Polychloroprene Contact Adhesives
		Polychloroprene or chloroprene rubber (CR), introduced by DuPont in 1931, was the first synthetic rubber developed that exhibited the elastomeric properties of natural rubber.
		Polychloroprene contact adhesives are used for bonding high-pressure laminates, automotive trim, roofing-membrane attachment, furniture, kitchen cabinets, custom display cabinets, interior and exterior panels, wall partitions, shoe soles, and many other applications where quick, high-strength, permanent bonds are needed.
		Polychloroprene rubbers can be dissolved in a wide variety of polar and non-polar organic solvents to provide a range of solution viscosities and drying times, all with good solution stability.
	www.specialchem4adhesives.com /resources/articles/article.aspx?id=316 (2907 words)

	Ansell Healthcare - Source to Surgery January 2000 Article III (Site not responding. Last check: 2007-10-23)
		Polychloroprene rubber (CR) gloves are very supple and come fairly close to NRL gloves in terms of feel, comfort and physical properties.
		It is possible to blend polychloroprene latex with other synthetic latexes, like nitrile, but this must be done with care in order to preserve the latex stability both before and after mixing with the vulcanizing materials.
		Polychloroprene presents the desirable properties to be a component of the blends needed for glove industry.
	www.ansellhealthcare.com /asia/english/source/jan00-3.htm (1319 words)

	Dynamically cured thermoplastic olefin polymers - Patent 4851468
		While polychloroprene is disclosed as one of the conjugated diene rubbers, it is one of many rubbers disclosed, and no preference is taught nor do any examples illustrate the use of polychloroprene or any benefit derived therefrom.
		The polychloroprene rubber is the primary contributor to oil resistance and enhances resilience of the DVA composition of this invention.
		On the other hand, polychloroprene is not ordinarily compatible with ethylene copolymer resins while halogenated butyl rubber is. The halogenated butyl rubber serves to "compatibilize" the polychloroprene with the ethylene copolymer resin and should be present at a level of at least 25 wt% based on the total rubber.
	www.freepatentsonline.com /4851468.html (5789 words)

	Neoprene
		This gave it a niche market and it went into production in 1931 as Neoprene, the first commercially successful synthetic rubber polymer which is still in production today.
		The chemical name for the elastomer is polychloroprene, Neoprene being DuPont’s trade name, but, like Hoover, the word has now been accepted as generic.
		The early material was still not perfect as it had poor colour, a strong smell and was not particularly stable but these defects were cured with the advent of solution polymerization and a particular advantage was found in that differing polymerization processes gave Neoprenes with differing properties.
	www.plastiquarian.com /neopr.htm (393 words)

	Plea Agreement : U.S. v. Syndial S.p.A.
		Polychloroprene rubber, also known as "chloroprene rubber," "polychloroprene," "PCP," or "butaclor," is a specific type of synthetic rubber which has end-use applications in the automotive, adhesives, and construction industries.
		Polychloroprene rubber is produced by free radical initiated emulsion polymerization of chloroprene or emulsion co-polymerization of chloroprene and at least one other co-monomer, and optionally, other additives.
		During the relevant period, the defendant, through its officers and employees, participated in a conspiracy among major polychloroprene rubber producers, the primary purpose of which was to suppress and eliminate competition by fixing the price of polychloroprene rubber sold in the United States and elsewhere.
	www.usdoj.gov /atr/cases/f210100/210145.htm (2072 words)

	Chloroprene polymer - Patent 5089601
		Such hydroxyl group-terminated polychloroprene can be cured by a polyfunctional compound such as a polyvalent isocyanate or a polyvalent acid chloride compound, and it is useful as a sticking agent, an adhesive, a sealant, a coating material or a resin modifier.
		According to the present invention, polychloroprenes having hydroxyl groups at both terminals and polychloroprenes having dithiocarbamate groups at both terminals can be obtained, which can be cured by a polyfunctional compound such--as a polyvalent isocyanate or a polyvalent acid chloride compound and which are useful as polymer initiators useful for the production of block copolymers.
		Thus, it was concluded that the initiator was bifunctional, and this polymer was an ABA type block copolymer composed of.alpha.-methylstyrene polymer block A and polychloroprene block B, from the change of the molecular weight and the microphase-separated structure of the polymer.
	www.freepatentsonline.com /5089601.html (3868 words)

	Polychloroprene Market Study Report - European Adhesives Industry
		This raw material market report on polychloroprene includes all grades of polychloroprene polymers, which are currently sold in solid form and as lattices.
		Various grades of solid polychloroprene, which generally differ in level of crystallinity, are available commercially for using solvent based adhesives.
		Solvent based polychloroprene adhesives are generally sold as contact adhesives, which are formulated using a polychloroprene rubber, a tackifying resin (most commonly a proprietary butyl phenol based phenolic resole) and antioxidants/acid scavengers, such as metal oxide.
	www.chemquest.com /store/polychloroprene-european-adhesives.html (278 words)

	Article - Contact Adhesives
		Polychloroprene elastomers prepared for solvent based adhesive formulation can be dissolved in a wide variety of polar and non-polar solvents.
		Polychloroprene latex contact adhesive can be prepared by blending a suitable latex with a tackifying resin emulsion.
		Polyurethane adhesives are often chosen over polychloroprene adhesives when greater resistance to plasticizer migration is required or difficult to bond polymeric substrates are involved.
	www.specialchem4adhesives.com /resources/articles/article.aspx?id=788 (4300 words)

	The 2006-2011 World Outlook for Butyl, Polychloroprene, and Stereo Polyisoprene Elastomers - Market Research Report
		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.
		For these countries, equilibrium latent demand is assumed to be perfectly parametric and not a function of wealth (i.e., a country’s stock of income), but a function of current income (a country’s flow of income).
	www.mindbranch.com /products/R307-10757.html (2886 words)

	Plea Agreement : U.S. v. Dupont Dow Elastomers L.L.C.
		During the relevant period, the defendant was a producer of polychloroprene rubber, was engaged in the sale of polychloroprene rubber in the United States and elsewhere, and employed 1,000 or more individuals.
		Polychloroprene rubber, also known as "chloroprene rubber," "polychloroprene," "PCP," or "neoprene," is a specific type of synthetic rubber which has end-use applications in the automotive, adhesives, and construction industries.
		The United States contends that had this case gone to trial, the United States would have presented evidence to prove that the gain derived from or the loss resulting from the charged offense is sufficient to justify a fine of $84 million, pursuant to 18 U.S.C. § 3571(d).
	www.usdoj.gov /atr/cases/f209200/209230.htm (2117 words)

	Bayer To Consolidate Polychloroprene Production (Site not responding. Last check: 2007-10-23)
		Polychloroprene has experienced a declining market over the past several years.
		This consolidation is part of the company's restructuring to gain competitive advantage and to demonstrate its firm commitment to the rubber and adhesives industries.
		Bayer Corporation, with headquarters in Pittsburgh, is a member of the worldwide Bayer Group, a $32.4 billion chemical and pharmaceutical company based in Leverkusen, Germany.
	www.bayerus.com /new/1997/10.2.97.html (291 words)

	Investor's Business Daily: Breaking News
		Polychloroprene synthetic rubber is being used in automotive parts and general industrial parts that require flame retardancy and resistance to oils and weathering.
		Although SDK raised its polychloroprene synthetic rubber price in November 2004 due to the sharp rise in naphtha and butadiene prices, the raw material cost has continued to rise.
		Moreover, the domestic naphtha price is expected to further rise to \45,000-\50,000 per kiloliter in the October-December period this year from \35,000 per kiloliter for the same period last year.
	www.investors.com /breakingnews.asp?journalid=31958540&brk=1 (504 words)

	Polychloroprene — Different Types of Chloroprene Rubber ( CR )
		General-purpose grades are mostly produced with n-dodecyl mercaptan as the chain transfer agent and occasionally with xanthogen disulfides.
		If xanthogen disulfides are used, the elastomers are more readily processible and give vulcanizates with improved mechanical properties.
		Precrosslinked grades consist of a blend of soluble polychloroprene and crosslinked polychloroprene.
	www.azom.com /details.asp?ArticleID=2065 (272 words)

	[No title]
		As a result of its review, the Department found that revocation of the antidumping finding would likely lead to continuation or recurrence of dumping and notified the Commission of the magnitude of the margin likely to prevail were the finding to be revoked.
		On July 30, 1999, the Commission determined, pursuant to section 751(c) of the Act, that revocation of the antidumping finding on polychloroprene rubber from Japan would be likely to lead to continuation or recurrence of material injury to an industry in the United States within a reasonably foreseeable time.
		Scope The merchandise covered by this antidumping finding is imports of polychloroprene rubber from Japan, an oil resistant synthetic rubber also known as polymerized chlorobutadiene or neoprene, currently classifiable under items 4002.42.00, 4002.49.00, 4003.00.00, 4462.15.21 and 4462.00.00.
	ia.ita.doc.gov /frn/9909frn/99-901e.txt (554 words)

	Polychloroprene producers price capacity market demand consumption production growth uses outlook
		Polychloroprene is produced in a variety of grades in both dry and latex forms.
		Dry grades of CR are normally used in industrial and automotive rubber goods such as hoses and belts.
		Polychloroprene is noted primarily for its high resilience and excellent resistance to ozone, flame and weathering; it also possesses high strength and good resistance to abrasion, oxidants, oil and aging.
	www.the-innovation-group.com /ChemProfiles/Polychloroprene.htm (470 words)

	Gold Bennett Cera & Sidener LLP \| Recent Filings
		The Firm is Co-Lead Counsel to plaintiffs in the Polychloroprene case.
		The action alleges a conspiracy by the manufacturers of Polychloroprene (also known as Bayprene, Neoprene or cholorprene rubber) to fix prices and allocate customers.
		This action is brought on behalf of all persons who purchased Polychloroprene in the United States directly from defendants or their co-conspirators from January 1, 1999 to December 31, 2003.
	gbcslaw.com /pending_cases/recent-filings.htm (1438 words)

	www.eastman.com - Markets - Adhesives - Contact Adhesives (Site not responding. Last check: 2007-10-23)
		Contact adhesives are not tacky by themselves, but develop a strong and instant bond when two surfaces coated with the same adhesive are brought into contact with each other.
		They are almost universally based on polychloroprene rubber.
		The tackifiers used in contact adhesives must be compatible with polychloroprene rubber which limits the selection to aromatic hydrocarbon and rosin resins.
	www.eastman.com /Markets/Adhesives_and_Sealants/ContactAdhesives.htm (178 words)

	Polychloroprene
		Hydrogenated nitrile rubber (HNBR) is a viable alternative to polychloroprene for many automotive applications such as timing belts, seals and hoses.
		It has excellent mechanical, thermo-oxidative and chemical resistant properties and an excellent operating temperature range.
		Polychloroprene or chloroprene rubber comes in a number of different grades such as general purpose, precrosslinked, sulfur modified and slow crystallizing.
	www.azom.com /SearchResults.asp?MaterialKeyWord=Polychloroprene (86 words)

	FR Doc E5-7823
		The purpose of the proposed review investigation is to determine whether revocation of the existing antidumping finding on imports of polychloroprene rubber from Japan is likely to lead to continuation or recurrence of material injury to an industry in the United States (19 U.S.C. 1675(b)(2)(A)).
		Polychloroprene rubber is provided for in subheadings 4002.41, 4002.49, and 4003.00 of the Harmonized Tariff Schedule of the United States.
		Written comments requested.--Pursuant to section 207.45(b) of the Commission's Rules of Practice and Procedure, the Commission requests comments concerning whether the alleged changed circumstances, brought about by the closing of Polimeri's sole polychloroprene rubber plant, are sufficient to warrant institution of a review investigation.
	a257.g.akamaitech.net /7/257/2422/01jan20051800/edocket.access.gpo.gov/2005/E5-7823.htm (672 words)

	Lanxess Chemicals Group Opens Chloroprene Rubber Center
		With this new control building we shall be in an even better position to meet the needs of our customers effectively," says Ingo Fischer, Head of Global Product Management for CR at LANXESS’s Technical Rubber Products Business Unit.
		Dormagen houses the world’s largest CR unit with a direct link between chloroprene monomer and polychloroprene.
		Polychloroprene is used in a large number of applications in the field of technical rubber goods e.g.
	www.jobwerx.com /news/lanxess_biz-id=947752_142.html (366 words)

	Disposable Neoprene & Nitrile Gloves - Exam, Surgical & Medical Gloves
		Our Polychloroprene (Neoprene) gloves are available in both sterile and non-sterile forms and with color availability in White, Blue, Green, and any other exclusive color based on client preference.
		MediSafe's Polychloroprene (Neoprene) EMS gloves were tested for resistance to permeation to ASTM F-739-99a to the following Chemotherapy drugs commonly used.
		The essence of MediSafe's knowledge of Polychloroprene dipping-technology distilled over the years has now also been utilized for developing a strong and comfortable Polychloroprene Surgeons' glove - a dependable and comfortable alternative to Natural Rubber Surgeons' gloves.
	www.medisafe-tech.com /Neoprene-Nitrile-Gloves.html (754 words)

	Neoprene
		Neoprene polychloroprene is an extremely versatile synthetic rubber with 70 years of proven performance in a broad industry spectrum.
		The polymer structure can be modified by copolymerizing chloroprene with sulfur and/or 2,3 dichloro 1,3-butadiene to yield a family of materials with a broad range of chemical and physical properties.
		The characteristics of raw polymer and the vulcanizates of each family are in the Selection Guide for Neoprene.
	www.dupont-dow.com /Products/Neoprene/neoprene.asp (287 words)

	dupontdow011905 (Site not responding. Last check: 2007-10-23)
		About $350 million of the rubber, polychloroprene, also known as chloroprene rubber, is sold annually in the United States.
		The company was charged with conspiring with its competitors to fix the price of polychloroprene rubber sold in the United States and elsewhere from August 1999 to April 2002.
		The company was charged with participating in conversations and meetings to discuss prices of polychloroprene rubber to be sold in the United States and elsewhere and agreeing during those meetings to fix the price of polychloroprene rubber to be sold around the world.
	www.corporatecrimereporter.com /dupontdow011905.htm (272 words)

	The Macrogalleria - Polychloroprene (Site not responding. Last check: 2007-10-23)
		Polychloroprene is usually sold under the trade name Neoprene.
		Polychloroprene is made from the monomer chloroprene, believe it or not, like this:
		Polychloroprene has properties similar to those of other diene polymers like polyisoprene and polybutadiene.
	www.pslc.ws /macrogcss/np.html (143 words)

	\|\| Apar Industries \|\|
		In the automobile industry, many manufacturers have been specifying Polychloroprene rubber to get ozone and oil resistance in the auto parts.
		Polychloroprene rubbers (CR) are not manufactured locally and imports can be expensive.
		The efforts are extremely successful and now many major automobile manufacturers have switched over from Polychloroprene to NVC.
	www.apar.com /polymers/NitrilePoly.html (127 words)

	PSIgate - Physical Sciences Information Gateway: Search/Browse Results
		The structure and properties of polychloroprene are briefly introduced.
		The term diene polymers usually refers to polymers made from small molecules, or monomers, which have two carbon-carbon double bonds in the 1 and 3 positions.
		The structure and properties of these polymers are described and illustrated, with links to further information on polyisoprene, polybutadiene and polychloroprene.
	www.psigate.ac.uk /roads/cgi-bin/psisearch.pl?term1=polychloroprene&limit=0&subject=All (130 words)

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