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Topic: Biocide

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	Warwick International — TAED (tetraacetylethylenediamine) - an effective biocide
		The Biocide Technologies Group at Warwick International will provide a full technical partnership, complete product development programmes and performance evaluation using dedicated microbiological facilities.
		For optimal biocidal activity it is important to choose the appropriate WARWICK B Series product and the correct level (and source) of peroxygen.
		Other factors are also important and advice on all of these is available from the Biocide Technologies Group at Warwick International through our contact form.
	www.warwickint.com /html/biocides/applications.htm (203 words)

	Why use Biocides in your Coatings? - Biocide Center - SpecialChem 4 Coatings and Inks
		Biocide additives have been designed to keep bacteria from spoiling paint during storage, or to keep fungi and algae from growing on the applied paint.
		In the Biocide Center, we will provide you with in-depth technical information on the benefits and features of biocides for Dry-film protection and In-can preservation and help you to select the most suitable biocide additives in accordance with new stringent European regulations.
		As biocides are biologically active and have the potential to be irritating, we recommend you to follow our guidelines for any of your paint developments.
	www.specialchem4coatings.com /tc/biocide/index.aspx (293 words)

	Patent 6,413,531
		Biocidal compositions are described where the biocide and the diethanolamide are present in a combined amount effective to control the growth of at least one microorganism.
		The combination of the biocide and the diethanolamide is particularly useful as a biocide in the leather industry, the lumber industry, the papermaking industry, the textile industry, the agricultural industry, and the coating industry, as well as in industrial process waters.
		Alternatively, the biocide and the diethanolamide may be employed as separate components such that the combined amount for the intended use is effective to control the growth of at least one microorganism.
	www.pharmcast.com /Patents/Yr2002/July2002/070202/6413531_Biocide070202.htm (3374 words)

	Biocide microencapsulation - Patent 5164096
		Biocide treatment of the water system of a papermaking process comprising the steps of encapsulating the biocide as the core of the capsule in a water suspension, in which the shell is degradable at high water dilution, and introducing the microcapsules into the water stream to undergo dilution release.
		The biocidal odor is thus masked, and by the same token the biocidal toxicity/sensitizing is controlled and the encapsulated biocide is in a state of harmless isolation until released and added to the industrial waters and dilution occurs.
		However, the biocide capsules may range in diameter from about 20 microns up to about 500 to 1,000 microns depending upon the biocide, its concentration, the encapsulation agent(s), their concentration, the reaction time, the energy and time of mixing, and other such variables.
	www.freepatentsonline.com /5164096.html (1543 words)

	Biocide composition containing propionic acid and iodine compounds - Patent 6852340
		The present biocide composition retains activity in the presence of significant amounts of organic matter and hard water and provides an activity having a short inception time, and for a significant period thereafter; also, the shelf life of the present composition has a significant shelf life.
		Biocides for use particularly in animal husbandry locations, and the like, require a suitable activity against a wide variety of microorganisms such as bacteria, molds, spores and viruses, and in the presence of significant amounts of organic matter and using hard water.
		The biocide solution of this invention is then sprayed downwardly from the curtains to the floor and thoroughly wetting the desired area to be disinfected.
	www.freepatentsonline.com /6852340.html (1921 words)

	Biocide Efficacy Research
		Biocide efficacy data are required by FIFRA for "sanitizers recommended for use in public food-handling establishments as final sanitizing rinses for articles, equipment, and surfaces that will come in contact with food or beverages after treatment" (FIFRA, 1947).
		Biocides which contain iodine complex, bromine derivatives, hypochlorite, or a chlorinated derivative of cyanuric acid must be tested against Salmonella typhi (S. typhi) in use-dilution tests (UDT).
		Biocides were prepared in sterile water and serially diluted in a total volume of 10 mls.
	netmar.com /~mchermak/biofilm.htm (9723 words)

	Fiber cement composite material using biocide treated durable cellulose fibers - Patent 6777103
		The biocide treated fibers have biocides attached to inner and outer surfaces of individualized fibers to protect the fibers from fungi, bacteria, mold and algae attacks.
		For example, biocide chemicals are preferably applied to the inner and outer surfaces of the water conducting channels and pores of the fiber where microorganisms are most likely to grow and to cause damages to the fibers.
		Biocide treated fibers can be used in a variety of composite materials, all having different proportions of cementitious binder, aggregate, density modifiers, treated and/or untreated cellulose fibers, and additives to obtain optimal properties for a particular application.
	www.freepatentsonline.com /6777103.html (7676 words)

	biocide - Encyclopedia.com
		Biocide manufactures develop new formulations to meet the changing requirements of the market.
		Biocide market pared down by environmental regulations: producers look overseas to maintain margins.
		Biocides and fungicides update: in response to limitations placed on the biocides market by the BPD, suppliers focus on biocidal "cocktails.".
	www.encyclopedia.com /doc/1E1-X-biocide.html (348 words)

	Questions to Ask Yourself Before Using Biocide
		Biocides, as the word indicates, are designed to kill living organisms.
		Cases where biocides may affect outcomes are in hospitals where infection of immunocompromised patients is of concern, in cleaning up bird droppings infested with Cryptococcus neoformans, or as a delay tactic in areas prone to repeated wetting.
		For any biocide, it is important to weigh the risks of human exposure to the biocide against the potential benefit of reducing human exposure to the fungal species targeted.
	www.moldreporter.org /vol2no6/questionsBiocide (476 words)

	Chem-Flow Information (Site not responding. Last check: 2007-09-12)
		The use of biocides to limit the growth of Biological material in a process is used in many industries.
		Biocides are also required for any heat transfer equipment exposing the heat transfer fluid to open air.
		Cooling tower biocides and food area biocides are very similar but need to be applied differently and also require different levels of verification of effectiveness.
	www.chemflow.com /web/CFHome2.nsf/publicgeneralinfo/10 (674 words)

	Fiber cement composite material using biocide treated durable cellulose fibers - Patent 6777103
		The biocide treated fibers have biocides attached to inner and outer surfaces of individualized fibers to protect the fibers from fungi, bacteria, mold and algae attacks.
		For example, biocide chemicals are preferably applied to the inner and outer surfaces of the water conducting channels and pores of the fiber where microorganisms are most likely to grow and to cause damages to the fibers.
		Biocide treated fibers can be used in a variety of composite materials, all having different proportions of cementitious binder, aggregate, density modifiers, treated and/or untreated cellulose fibers, and additives to obtain optimal properties for a particular application.
	freepatentsonline.com /6777103.html (7633 words)

	Racor Biocide - 1 Gal.
		Racor Diesel Biocide can be used to eliminate and / or prevent the growth of bacteria and fungi in petroleum distillate fuels and residual fuels including #1 diesel, #2 diesel, kerosene, gasoline and bunker c.
		Racor Diesel Biocide is intended for use in applications where petroleum distillate fuels and residual fuels are used - bulk storage tanks, locomotive fuel tanks, diesel trucks, diesel boats and ships, farm and agricultural equipment, construction equipment and diesel generators.
		Racor Diesel Biocide is an oil-soluble preservative for the control of bacteria and fungi that cause the degradation of crude oils and refined fuel oils during storage.
	www.usdieselparts.com /moreinfo.cfm?Product_ID=57614 (342 words)

	Biocide International PLC
		Biocide International PLC is an innovative developer of proven chemical biocide solutions that deal with the ever-increasing problem of pathogens, viruses, bacteria and fungi.
		Through the introduction and use of our Biocide products we expect to dramatically reduce the incidences of cross contamination and direct contact illness that are currently causing so much public concern, and greatly inhibiting the performance of Health Care Institutions.
		Biocide International PLC plays a significant global role in preventative health care and will continue to develop products to meet the growing threat from pathogens and viruses.
	www.biocideinternational.com (301 words)

	Biocides - Accepta
		Biocides - Accepta's extensive range of high performance biocides and specialist disinfectants have been developed for use across a wide range of commercial cleaning, industrial and process water treatment activities where the effective control of microbiological activity in water and on hard surfaces is essential.
		Our advanced technology biocidal products offer superior quality performance characteristics and include both liquid and solid tablets; blocks and strips, a range of innovative eco-friendly "no-gap" sanitizers, hydrogen peroxide/silver, chlorine dioxide, isothiazolin, DBNPA, hypochlorite and surfactants for hypochlorite, dithiocarbamate, TCMTB, chlorine, ozone and many more..
		Accepta 2103 is a broad-spectrum non-oxidising biocide approved for use in re-circulating cooling-towers, closed loop systems, air washers with mist eliminators, and brewery pasteurisers...
	www.accepta.com /water_treatment_chemicals/biocides.asp (1398 words)

	Findings and Conclusions (Site not responding. Last check: 2007-09-12)
		The Study’s test results demonstrated that the copper ion biocide was only 33 percent effective at 167 parts per billion (ppb) in freshwater and 70 percent effective at 68 ppb in reducing bacteria in freshwater and simulated seawater experiments, respectively.
		Consequently, the presence of sediment in the ballast tank would reduce the efficacy of copper as a biocide and higher concentrations of copper would need to be used compared to water in the absence of the sediment.
		The biocide corrosion tests that were conducted in the Study were of too short a duration to allow prediction of long-term corrosion rates or coating degradation rates.
	www.michigan.gov /mesb/1,1607,7-117-1254_14230_0-52383--,00.html (1365 words)

	Biocide-polyester concentrates and biocidal compositions prepared therefrom - Patent 7041307
		WO 92/07031 teaches the process for preparing a soluble-stable dispersion of a solid biocide comprising a swellable vinyl polymer with a liquid carrier to enable the incorporation of difficultly soluble biocides into polymer resins.
		While the process for putting biocides into plastics by adding the neat active biocidal compound into the polymer substrate during processing or manufacturing is known, this process can lead to discoloration of the final biocidally active substrate.
		These results clearly show that the plaques which contain the biocide incorporated therein using the concentrate are far superior in color performance (much lower YI values) than the plaques containing the same concentration of biocide added as a neat powder.
	www.freepatentsonline.com /7041307.html (1794 words)

	Clearwater Technology Ltd - Catalytic Chlorine Dioxide Biocide Wash of CHW System
		It was concluded that the instances of the organism becoming resistant to non-oxidising biocides in the past were due to poor circulation and dead legs in the system.
		A plan was developed whereby further biocide screening and applications of high concentrations of non-oxidising biocides (up to 5000ppm) with a tracer chemical would prove biocide circulation.
		Also at this point dead biofilm and biocide residue (MBT) were beginning to be deposited in strainers and the decision was taken to flush the system and carry out a biocide wash with Chlorine Dioxide.
	www.clearwater.eu.com /case_studies/catalytic_chlorine_dioxide_biocide_wash_of_chw_system.html (1297 words)

	KODAK: Biocide for Photographic Solution Tanks and Wash Water: Pub CIS-3
		This biocide is a liquid, water-soluble, and registered by the U.S. Environmental Protection Agency (EPA), administered with a metering pump (e.g., Gorman Rupp) to the wash tank that first receives the fresh water (see diagram).
		Eventually, the biocide will exit in the machine overflow to a sump and be pumped through silver-recovery to the drain.
		This may not be the only biocide that works well in photoprocessing wash water, but this is the one most extensively studied for the purpose.
	www.kodak.com /global/en/consumer/products/techInfo/cis3/cis3.shtml (1219 words)

	Modeling Biocide Action Against Biofilms
		Simulations were performed to analyze the general behavior of the model and to perform preliminary sensitivity analysis to identify key input parameters.
		The results support the plausibility of a mechanism of biofilm resistance in which the biocide is neutralized by reaction with biofilm constituents, leading to a reduction in the bulk biocide concentration and, more significantly, biocide concentration gradients within the biofilm.
		For example, the simulations suggested that a good interval between pulses of biocide is the time to minimum thickness.
	www.erc.montana.edu /Res-Lib99-SW/pubs/Abstracts/1996/96007.htm (281 words)

	Feature - Biocide Active Ingredients (Part 1 - Active Ingredient Profiling)
		Biocide chemistry is known as it follows the typical reactions of its chemical class.
		If a biocide reacts very rapidly with hydrogen sulfide or ammonia and the product of that reaction leads to another chemical which is biocidal, at least from a microbiological viewpoint, the chemical reactivity may be a benefit.
		Unfortunately, if the biocide reacts with hydrogen sulfide and the resultant reaction product becomes the new active ingredient, according to a basic interpretation of EPA regulations, the new active biocide may not be a registered biocide and would constitute use of an unregistered biocide.
	www.awt.org /members/publications/analyst/1997/summer/biocide.htm (2845 words)

	Endoscope Reprocessing Website: Module 5.5 Manual High-level Disinfection
		Ensure that biocide is seen to emerge from all the ports at the distal end of the insertion tube and light guide connector.
		Leave the endoscope immersed in the biocide for the time/temperature/concentration required to achieve high level disinfection according to the manufacturers and TGA recommendations.
		Use clean running water for each endoscope to ensure all traces of biocide are flushed away and to limit the potential for cross infection.
	www.health.qld.gov.au /EndoscopeReprocessing/Module55.htm (645 words)

	[No title]
		While the biocide was pumped through the ductwork, inmates became dizzy and suffered signs of neurotoxins (blurred vision, nausea, vertigo and difficult breathing).
		The prison officials state that the order to use the biocide, which is not approved for use on or near human beings due to its hazardous nature, was given in order to sterilize the camp ductwork.
		The biocide product was produced to sterilize boiler and cooling tower liquids and is not approved for use on human beings.
	www.drugwarprisoners.org /biocide.htm (1484 words)

	Biocide Summary
		A biocide is a chemical substance capable of killing different forms of living organisms used in fields such as medicine, agriculture, forestry, and mosquito control.
		Biocides can also be added to other materials (typically liquids) to protect the material from biological infestation and growth.
		Chlorine can be added in low concentrations to water as one of the final steps in wastewater treatment as a general biocide to kill micro-organisms, algae, etc. It is often impractical to store and use poisonous chlorine gas for water treatment, so alternative methods of effectively adding chlorine are used.
	www.bookrags.com /Biocide (453 words)

	The Silver Institute-Silver News
		The largest growth for silver as a biocide will be in plastics and other composites, especially in interior automobile applications such as seats, handles, mats and steering wheels.
		Markets for silver as a biocide in Japan have reached maturity and there are limited growth prospects because of the prolonged stagnation of the Japanese economy," the report noted.
		Other Biocide and Bacteriostat Uses: Although the initial uses for silver as a biocide was for medical products, such as silver-coated catheters, this remains a small market.
	www.silverinstitute.org /news/2a01.html (780 words)

	BAuA - Chemicals Act / Biocide procedure / Federal Institute for Occupational Safety and Health
		The Federal Institute for Occupational Safety and Health, Chemicals Notification Unit – Biocide Authorization Unit, is responsible for implementing statutory rules whose aim is the protection of man and the environment from dangerous substances.
		The risk posed by the substance from production up to disposal is assessed on the basis of information on the properties and the use of the substance.
		As the contact point for industry the Chemicals Notification Unit – Biocide Authorization Unit receives the data on chemicals and biocides.
	www.baua.de /en/Chemicals-Act-biocide-procedure/Notification-Unit-Chemicals-Act.html__nnn=true (379 words)

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