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Topic: Thixotropic

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	Thixotropic polyester compositions containing an organophilic clay gellant - United States Patent 4,081,496
		This invention is concerned with thixotropic polyester compositions containing as a gelling agent an organophilic clay comprising the reaction product of a smectite-type clay and a methyl benzyl dialkyl ammonium compound or a dibenzyl dialkyl ammonium compound and the preparation of said compositions from a pregel of an unsaturated aromatic monomer containing said organophilic clay.
		Thixotropic Index as defined herein is the ratio of the Brookfield viscosity in cps at 10 r.p.m.
		The unsaturated polyesters useful in preparing the thixotropic compositions of this invention are polyesters of a dicarboxylic acid and a diol having a major amount of olefinic unsaturation, preferably 10 to 75 olefin groups per 100 ester groups.
	xrint.com /patents/us/4081496 (3775 words)

	Thixotropic agent - US Patent 6548593 (Site not responding. Last check: 2007-10-29)
		The thixotropic agents of the present invention are based on urea derivatives that usually are present in a concentration of 5 to 50 wt.-%, in particular of 15 to 30 wt.-%, in a preferably reactive carrier material.
		The thixotropic agent of claim 1, wherein said urea compound is present in said carrier material in an amount of 5 to 50 wt-% based on the total weight of said urea compound end said carrier material.
		The thixotropic agent of claim 5, wherein said urea compound is present in said carrier material in an amount of 16 to 30 wt.-% based on the total weight of said urea compound and said carrier material.
	www.patentstorm.us /patents/6548593.html (3200 words)

	Composites Brand: POLYLITE
		POLYLITE 33031-00 is a pre-promoted, thixotropic, unsaturated polyester laminating resin.
		Thixotropic, medium reactivity, high viscosity, rigid, chemical resistant isophthalic resin specially formulated for use in the cured-in-place pipe industry where enhanced physical properties are required.
		The resin is thixotropic and it is a white pigmented.
	www.reichhold.com /composites/products/brand.cfm?ID=13 (2836 words)

	Thixotropic aqueous liquid automatic dishwashing detergent composition - Patent 4970016
		Recent research and development activity has focused on the gel or "thixotropic" form of such compositions, however, such compositions have generally proven to be insufficiently viscous to remain "anchored" in the dispenser cup of the dishwasher, and moreover yield spotty residues on dishware, glassware, china and the like.
		The thixotropic thickeners or suspending agents that can be used in accordance with the present invention to provide the aqueous medium with thixotropic properties may be organic, for example, fatty acid or fatty acid polyvalent metal salts and/or inorganic colloid forming clay materials.
		The preferred fatty acid thixotropic thickeners are the higher aliphatic fatty monocarboxylic acids having from about 8 to about 22 carbon atoms, more preferably from about 10 to 20 carbon atoms, and especially preferably from about 12 to 18 carbon atoms, inclusive of the carbon atom of the carboxyl group of the fatty acid.
	www.freepatentsonline.com /4970016.html (6414 words)

	[No title] (Site not responding. Last check: 2007-10-29)
		A thixotropic agent according to claim 1, characterised in that the poly (ester) amide is prepared using an excess of polycarboxylic acid.
		A thixotropic agent according to claim 2, characterised in that the poly (ester) amide is prepared using a molar excess of 10 to 30 mole% of
		A thixotropic agent according to claim 4, characterised in that the diamine is p-phenylene diamine.
	www.wipo.int /cgi-pct/guest/getbykey5?KEY=99/23177.990514&ELEMENT_SET=DECL (4347 words)

	Thixotropic aqueous liquid automatic dishwashing detergent composition containing anti-spotting and anti-filming agents ...
		Thixotropic aqueous liquid automatic dishwashing detergent composition with improved anti-filming and anti-spotting properties and method of using the detergent composition.
		It is a further object of this invention to provide stable aqueous thixotropic aqueous liquid compositions, especially automatic dishwasher detergent compositions, by incorporating in the aqueous suspension a small effective amount of a silica anti-filming agent and polyacrylic acid polymer or salt anti-spotting agent.
		The thixotropic thickeners or suspending agents that can be used in accordance with the present invention to provide the aqueous medium with thixotropic properties may be organic, for example, fatty acid or fatty acid polyvalent metal salts or inorganic colloid forming clay materials.
	www.freepatentsonline.com /4889653.html (6894 words)

	Thixotropic clay aqueous suspensions containing long chain saturated fatty acid stabilizers - Patent 4801395
		The thixotropic properties can be retained or improved using smaller levels of the clay thixotropic thickener than in the absence of the physical stabilizer.
		It is still another object of the invention to provide thixotropic liquid ADD compositions having reduced levels of thixotropic thickener without adversely effecting the generally high viscosities at low shear rates and lower viscosities at high shear rates which are characteristic of the desired thixotropic properties.
		Ratios of fatty acid to thixotropic agent in the range of from about 0.08 to 0.4 weight percent fatty acid and from about 1.3 to 2.5 weight percent thixotropic agent are usually sufficient to provide these simultaneous benefits and, therefore, the use of these ingredients in these ratios is most preferred.
	freepatentsonline.com /4801395.html (5542 words)

	Thixotropic Casting as A Technique for Producing Ceramic Matrix Composites
		Thixotropic casting is a specialised form of solid slip casting, involving highly thixotropic slips of very high solids loadings, a technique that has been used in the refractories industry.
		However, thixotropic casting differs from vibratory forming of refractory cements in that setting in the former is solely dependent on gelation induced by dewatering of the suspension while, in the latter, it is dependent on the bonding of the cement.
		Further, in the case of thixotropic casting slips, the solids content must be maximised such that the suspension is only just fluid when subjected to vibration.
	www.azom.com /details.asp?ArticleID=2615 (907 words)

	Reactive, thixotropic hot-melt adhesive on silane basis - US Patent 4871590 (Site not responding. Last check: 2007-10-29)
		Traditionally, hot-melt adhesives (hot melts) are thermoplastic materials, which are heated for their processing in a dispensing gun or in another device to a temperature of 90°-200° C. and are applied as a liquid mass to the substrates to be bonded.
		The thixotropic agent according to the present invention is selected from the group consisting of bentonite, carbon fl, silicic acid derivatives, precipitated chalks, polyvinylchloride, urea derivatives and acrylate derivatives.
		The inventive thixotropic, hot-melt adhesive having reactive silane groups, may be used for bonding and/or sealing one or more materials of the same or different origin to a composite.
	www.patentstorm.us /patents/4871590.html (4499 words)

	Thixotropic aqueous liquid automatic dishwashing detergent composition - Patent 5084198
		Recent research and development activity has focused on the gel or "thixotropic" form of such compositions, however, such compositions have generally proven to be sufficiently viscous to remain "anchored" in the dispenser cup of the dishwasher, and moreover yield spotty residues on dishware, glassware, china and the like.
		Because of the addition of a small effective amount of a an alumina or titanium dioxide anti-filming agent and polyacrylic acid polymer or salt anti-spotting agent to the composition an added rinse aid is not required and towel wiping and drying are not required to obtain dry sparkling clean dishes, glasses, cups and eating utensils.
		It is a further object of this invention to provide stable aqueous thixotropic aqueous liquid compositions, especially automatic dishwasher detergent compositions, by incorporating in the aqueous suspension a small effective amount of an alumina or titanium dioxide anti-filming agent and polyacrylic acid polymer or salt anti-spotting agent.
	www.freepatentsonline.com /5084198.html (7337 words)

	Thixotropic liquid automatic dishwasher detergent composition with improved physical stability - Patent 5057237
		The present invention relates to automatic dishwashing detergent compositions having thixotropic properties, improved chemical and physical stability, and which are readily dispersible in the washing medium to provide effective cleaning of dishware, glassware, china and the like.
		It is also an object of the invention to provide thixotropic liquid ADD compositions having reduced levels of thixotropic thickener without adversely effecting the generally high viscosities at low shear reates and lower viscosities at high shear rates which are characteristic of the desired thixotropic properties.
		It is one of the advantages of the ADD formulations of the present invention that the desired thixotropic properties and Bingbam plastic character can be obtained in the presence of the polyvalent metal salt fatty acid stabilizers with lesser amounts of the thixotropic thickeners.
	www.freepatentsonline.com /5057237.html (5129 words)

	Process for mounting components on a base by means of thixotropic material - Patent 4145390
		A process as claimed in claim 1 wherein said thixotropic material is vibrated in a level parallel to the surface of said material.
		This invention relates to a process of mounting in particular electronic components on a base by means of thixotropic material, whereby the material is transferred to the base by dipping a die or the component in a stock and then pressing the component on the material layer thus produced.
		This object is solved according to the invention by superimposing a vibration liquidefying the thixotropic material on the dipping and/or the pressure motion of the die and/or the component.
	www.freepatentsonline.com /4145390.html (1271 words)

	Composites Process: Spray-up Resins (Open Molding)
		DION 9100-800 (formerly NORPOL DION 9100-800) is a thixotropic and preaccelerated Bisphenol-A epoxy based vinyl ester resin.
		DION 9100-M700 (formerly NORPOL DION 9100-M700) is a thixotropic and preaccelerated Bisphenol-A epoxy based vinyl ester resin.
		DION 9500-700 (formerly NORPOL DION 9500-700) is a preaccelerated and thixotropic, rubber modified epoxy based vinyl ester resin.
	www.reichhold.com /composites/products/process.cfm?ID=27 (2483 words)

	[No title] (Site not responding. Last check: 2007-10-29)
		For instance, thixotropic material 14 allows for movement between the optical waveguides and the tube, cushioning of the optical waveguides, coupling of the optical waveguides with the tube, and blocking the migration of water within the tube.
		Additionally, injecting thixotropic material 14 inside tube 15 during the extrusion of tube 15 around optical waveguides 12 aids in maintaining the shape of tube 15.
		Fiber optic dry tube assemblies generally exclude a thixotropic material that completely fills the tube ; however, lubricants such as thixotropic materials can be used on and/or between optical waveguides such as ribbons of a ribbon stack to allow relative sliding therebetween.
	www.wipo.int /cgi-pct/guest/getbykey5?KEY=04/109355.041216&ELEMENT_SET=DECL (4943 words)

	A cross-bridge mechanism can explain the thixotropic short-range elastic component of relaxed frog skeletal muscle -- ...
		If a second identical stretch was imposed on the muscle at a time when the resting tension was reduced by the previous stretch, the maximal tension produced during the second stretch was the same as that produced during the first, despite the second stretch commencing from a lower initial resting tension.
		It must be emphasized that in the present model, the biphasic nature of the SREC tension response is attributed solely to the skewing of the cross-bridge distribution to the steady-state dynamic distribution produced by the imposed movement.
		Preliminary simulations revealed that the thixotropic nature of the SREC tension response was not critically dependent on the precise manner in which the attachment and detachment rate constants varied as functions of the cross-bridge displacement x.
	jp.physoc.org /cgi/content/full/510/3/941 (13289 words)

	A Thixotropic mixture like the blood of Saint Januarius (San Gennaro) (Site not responding. Last check: 2007-10-29)
		Shaking or often slight mechanical disturbances thus make a thixotropic substance more fluid, even to the extent of changing it from a solid to a liquid (2).
		The thixotropic property of this mixture was tested (6) in a CS-Bohlin rheometer (C14 coaxial cylinder system; stress sweep test, 1 Hz, 25 oC).
		Among those that have met with some success are clays (56 g finely ground bentonite (7) stirred in 100 ml of water works well), beeswax in alcohol, and inorganic pigments in linseed or castor oil.
	www.cicap.org /articoli/at100063.htm (743 words)

	Selector Guide
		Thixotropic adhesive that yields tough, durable bonds over a wide temperature range.
		Non-slump thixotropic adhesive with high peel strength and excellent environmental durability.
		Thixotropic adhesive with structured properties to 350°F (177°C).
	www.loctiteaero.com /SelectorGuideDisplay.cfm?ID=7 (417 words)

	A thixotropic effect in contracting rabbit psoas muscle: prior movement reduces the initial tension response to stretch ...
		The magnitude of the thixotropic reduction could then be established by expressing muscle stiffness during the initial phase of the second response relative to the corresponding first stretch value.
		These data indicate that the magnitude of the thixotropic stiffness reduction scaled in a similar manner to the developed tension as the free Ca concentration was raised from negligible to saturating values.
		It seems to us that there are two distinct possibilities: either (1) the thixotropic behaviour of relaxed intact and contracting permeabilised fibres arise from two entirely different mechanisms or (2) a similar mechanism underlies the history-dependent behaviour in both types of preparation.
	jp.physoc.org /cgi/content/full/525/2/531 (10748 words)

	Contribution of thixotropy, spasticity, and contracture to ankle stiffness after stroke -- Vattanasilp et al. 69 (1): ... (Site not responding. Last check: 2007-10-29)
		an exaggerated thixotropic response as the thixotropic response
		A thixotropic response was also found in the relaxed calf muscles of patients with stroke.
		Thixotropic behavior of human finger flexor muscles with accompanying changes in spindle and reflex responses to stretch.
	jnnp.bmjjournals.com /cgi/content/full/69/1/34 (3566 words)

	CHaOS demonstrator area - Cornflour, Fluidised Bed and Thixotropic Sand
		This is a selection of strange fluids, and particle effects grouped together, mainly just because they are fascinating to play with, including Cornflour and water, shaken wet sand, and a fluidised bed.
		Just add water to sand until it is Thixotropic - this is a bit more of a challenge than the cornflour, but if the surface is actually wet it normally works.
		The longer you shear a thixotropic fluid the lower the viscosity (the thinner it becomes) - e.g.
	www.chaosscience.org.uk /dem/public_html/article.php?story=20030925150035401 (1325 words)

	Electric motors & motor controls engineering - "thixotropic" resin
		I meant to add that it looks like you give thixotropic resins a good stirring up before introducing it into the tank, and they stay thin for long enough to get them into the winding.
		We utilize a thixotropic resin here to contain crossover junctions on a PMDC motor and as stated by UKpete, the material is highly viscous at room temp, but becomes very much less at the cure temperature allowing for high wicking properties.
		It is recommended before placing the unit in the vacuum chamber, preheat the unit to a temperature of 250f-325f., Cool to a temp of 130f to 150f.
	www.eng-tips.com /viewthread.cfm?qid=73625 (891 words)

	[Rivers-list] New research report on Dam Break Wave of Thixotropic Fluid
		Theoretical considerations were developed based upon a kinematic wave approximation of the Saint-Venant equations for a thixotropic fluid down a prismatic sloping channel.
		The analytical solution of the basic flow motion and rheology equations predict three basic flow regimes depending upon the fluid properties and flow conditions, including the initial degree of jamming of the fluid.
		Saint-Venant equations) with a thixotropic fluid model, which was validated with large-size systematic laboratory experiments.
	www.cedex.es /pipermail/rivers-list/2004-June/000004.html (284 words)

	AOC (Site not responding. Last check: 2007-10-29)
		HyFill C949-B is a pre-promoted thixotropic, polyester resin.
		Altek® H559-B is a prepromoted, thixotropic, general purpose medium reactive orthophthalic polyester resin.
		Hydropel® H100-M is a thixotropic, prepromoted, 100% vinyl ester resin.
	www.chembuyersguide.com /partners/aoc-resins.html (7347 words)

	THIXOTROPIC BLOB (Site not responding. Last check: 2007-10-29)
		This thixotropic clay stretches and flows like taffy, and its unusual properties suggested to Bailey, a way to "create life out of mud".
		He dumped a bucket of soft, thixotropic clay onto a large piece of cloth.
		He makes a series of "Laboratory Specimens" which exploit the properties of thixotropic clay for the next 15 years; each one depicting a mad-scientist scene from a comic book "chamber of horrors".
	www.claytonbailey.com /blob.htm (197 words)

	Better Blood Through Chemistry: Laboratory Replication of a Miracle
		Thixotropics sols will equilibrate after one or more months, and they may gel incompletely and become only very viscous.
		While a thixotropic gel can be obtained without dialysis by mixing ferric chloride, calcium carbonate, and water in exact proportions (Guthknecht, 1946), the simulated blood prepared in this manner has been found to exhibit thixotropic properties for only a short period of time.
		Although temperature may certainly play a part in thixotropic characteristics, the temperature effect has been rejected by many (Rogo, 1982) based on evidence that the reliquary was cool when kissed and that the liquefaction was independent of the temperature in the cathedral.
	www.spectrometer.org /path/blood.html (4861 words)

	Thixotropic feed supplement suspensions - Patent 4937082
		There is disclosed a stable thixotropic suspension of water insoluble animal feed nutrients in an aqueous feed solution and a method for its preparation.
		The liquid phase of the suspension is a liquid gel of a feed solution in which can be dissolved water-soluble nutrients.
		The thixotropic liquid is prepared by adding calcium hydroxide, and phosphoric acid or ammonium polyphosphate to the feed solution to prepare a viscous, aqueous gel.
	www.freepatentsonline.com /4937082.html (4244 words)

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