Abstract: The present invention provides a polyacetal resin composition having excellent mechanical characteristics with reduced generation of formaldehyde. To 100 parts by weight of (A1) a polyacetal resin having substantially straight chain molecular structure, there are added 0.1-20 parts by weight of (A2) a polyacetal resin having a branched or cross-linked molecular structure, 3-200 parts by weight of (B) a glass-base inorganic filler, and 0.001 to 3 parts by weight of (C) a boric acid compound.

Abstract: Polyvinyl acetals with low solution viscosities and maximum Newtonian flow behavior contain sulphonate-functional vinyl ether or sulphonate-functional allyl ether units in addition to conventional vinyl ester, vinyl alcohol, and vinyl acetal units.

Abstract: Coating of inorganic pigments with aldehyde or ketone resins and at least one dispersant, comprising a chemical compound consisting of particles of solid organic and inorganic substances, both defined as pigments, in that they absorb a fraction of the light and reflect the complementary part thereof, coated with aldehyde or ketone resins. The latter are deposited on the surface of the pigment by means of a process which envisages melting of the resin, wetting and coating of the entire surface of the pigment with the resin in the melted state, and cooling and atomization by means of mechanical systems operating in temperature conditions lower than 10° C., by cryogenic processes. The resulting product may be used as a semifinished product for the colouring and pigmentation of powder paints and plastics as a monochromatic colouring material and/or may also be used, after dissolving in a solvent, as a pigmented paste.

Abstract: Disclosed are a resin composition comprising a polylactic acid resin and a polyacetal resin, and such a resin composition in which the polylactic acid resin and the polyacetal resin are kept miscible with each other. The resin composition has good moldability, workability, mechanical properties, heat resistance and transparency, and may be worked into moldings, films and fibers for practical use.

Abstract: An aldehyde-inhibiting composition inhibiting an aldehyde from an aldehyde-generating source comprises a carboxylic acid hydrazide and a metal salt of a hydroxy polycarboxylic acid (e.g., a salt of citric acid, malic acid, or tartaric acid with an alkaline earth metal) in a proportion of 0.01 to 100 parts by weight relative to 1 part by weight of the carboxylic acid hydrazide. Moreover, a polyacetal resin composition may comprise a polyacetal resin and the aldehyde-inhibiting composition in a proportion of 0.001 to 20 parts by weight of the aldehyde-inhibiting composition relative to 100 parts by weight of the polyacetal resin. To the resin composition, may be added an antioxidant, a heat stabilizer, a processing stabilizer, a weather (light)-resistant stabilizer, an impact resistance improver, a gloss control agent, a sliding improver, a coloring agent, a filler, and others.

Abstract: A grind resin, a pigment dispersion, and a coating composition are provided. The grind resin comprises a reaction product of a dibasic acid, optionally a polybasic acid, a diol, optionally a polyol, and a fatty compound. The fatty compound has a fatty chain and two reactive groups reactive with at least one of the dibasic acid and the diol provided that ?5% of all acid groups are provided by the polybasic acid and <20% of all hydroxyl groups are provided by the polyol. The reaction product is substantially free from branching comprising the reaction product of acid groups or hydroxyl groups and the dibasic acid, polybasic acid, diol, polyol, or fatty compound. The pigment dispersion comprises a pigment and the grind resin. The coating composition comprises a vehicle resin, the pigment, the grind resin, and a cross-linking agent reactive with the vehicle resin and/or the grind resin.

Abstract: A thermal transfer ink sheet having a dye layer containing a polyvinyl acetal modified with a compound of the formula [1] and a polyvinyl acetal modified with a compound of the formula [2]: wherein R1 represents a substituted alkyl group, etc; R2 represents H, etc; wherein R3 represents a linear hydrocarbon group, etc; R4 represents a hydrogen atom, etc.

Abstract: Pulverulent polycondensation products are described, consisting of a) 5 to 95% by weight of a polycondensation product based on an aromatic or heteroaromatic compound (A) having 5 to 10 C atoms or heteroatoms having at least one oxyethylene or oxypropylene radical and one aldehyde (C) selected from the group consisting of formaldehyde, glyoxylic acid and benzaldehyde or mixtures thereof, and b) 5 to 95% by weight of a finely divided mineral carrier material having a specific surface area of 0.5 to 500 m2/g (according to BET as specified in DIN 66 131). The pulverulent polycondensation products according to the invention are outstandingly suitable in construction material mixtures in an amount of from 0.1 to 5% by weight, based on the weight of the construction material. The pulverulent polycondensation products have a number of advantages here, such as, for example, excellent storage stability, good liquefying action at low dosage and industrially simple production.

Abstract: This invention provided a high-build, self-polishing marine antifouling paint which affords a coated film having antifouling properties for a long period of time. The paint binder which is a fiber reinforced aldehyde resin comprises two synergistically acting components, Component A and Component B. Component A an aluminium di-sec-alkoxide ace-toacetic ester chelate is represented by the following formula (1): (R1O)2—Al—(CH3—CO—CH2—CO—O—R2) wherein R1 represents an sec.-alkyl group having 3 to 10 carbon atoms, or a cycloalkyl group; and R2 represents an alkyl group having 1 to 10 carbon atoms, or a cycloalkyl group. Component B a monoalkoxy organo-titanate0IV is represented by the following formula (II): R3—O—Ti(—X)3 wherein R3 is a monovalent organic group having from 2 to 30 carbon atoms or a substituted derivative thereof X in the above formulae independently represents an acylate group, a sulfonic acid reside, a phosphoric acid residue or a pyrophosphoric ester residue, or a mixture thereof.

Abstract: Solid pigment preparations comprising as essential components (A) 80 to 99.5% by weight of a pigment component comprising at least one organic pigment (A1) and one inorganic pigment (A2) and (B) 0.5 to 20% by weight of at least one water-soluble/water-dilutable aldehyde resin or ketone resin.

Abstract: A curable organic resin composition comprising (A) 100 parts by weight of a curable organic resin and (B) 0.01 to 100 parts by weight of a thiocyanato-containing organohydrocarbonoxysilane or an isothiocyanato-containing organohydrocarbonoxysilane represented by the general formula: X—R1—Si(OR2)nR33-n, wherein X is NCS— or SCN—, R1 is an alkylene or alkyleneoxyalkylene group, R2 and R3 are monovalent hydrocarbon groups, and the subscript n is 1, 2, or 3. The curable organic resin composition possesses superior moldability and, when cured, exhibits superior adhesive properties on substrates such as metals.

Abstract: It comprises a first phase in which at least one pigment is mixed with a solid resin, such as to form a solid mass, that is characterized in that in addition, it includes the following phases: a second phase in which the resultant product of the first phase is milled, in a planetary rolls machine, until a homogenous paste is obtained with a predetermined colour strength, and a third phase in which, the resultant product of the second phase is broken, giving dry pieces or “Chips”.

Abstract: An ink set, comprising: an oil based ink composition containing a metallic pigment; and at least one or more oil based ink compositions selected from a group consisting of a chromatic color ink composition containing chromatic color pigment, a black ink composition containing black pigment, and a white ink composition containing white pigment.

Abstract: Disclosed herein are polyoxymethylene blends having excellent fatigue resistance comprising at least one polyoxymethylene homopolymer having a number average molecular weight of at least about 100,000 and at least one polyoxymethylene homopolymer having a number average molecular weight between about 15,000 and about 30,000.

Abstract: Polyvinyl acetals with low solution viscosities and maximum Newtonian flow behavior contain sulphonate-functional vinyl ether or sulphonate-functional allyl ether units in addition to conventional vinyl ester, vinyl alcohol, and vinyl acetal units.

Abstract: Disclosed are a resin composition comprising a polylactic acid resin and a polyacetal resin, and such a resin composition in which the polylactic acid resin and the polyacetal resin are kept miscible with each other. The resin composition has good moldability, workability, mechanical properties, heat resistance and transparency, and may be worked into moldings, films and fibers for practical use.

Abstract: Polyoxymethylene with improved resistance to acids, comprising A from 84 to 99.79% by weight of at least one polyoxymethylene homo- or copolymer, B from 0.1 to 5% by weight of at least one polyalkylene glycol, C from 0.1 to 10% by weight of zinc oxide, and D from 0.01 to 1% by weight of one or more nitrogen-containing costabilizers, where the total of the percentages by weight of components A to D is 100%. This polyoxymethylene is particularly advantageous when used for producing moldings for use in contact with aggressive acids or with aggressive acid-containing cleaning agents, in particular for applications in the sanitary sector or the white goods sector.

Abstract: A composition comprising an aqueous polymer dispersion, characterised in that a) the composition contains 0.001 to 0.5 mol of a photo-initiator, which causes a cross-linking reaction on irradiation with energy-rich light and b) the polymer dispersed in the dispersion has 0.0001 to 1 mol of keto or aldehyde groups, whereby the mol amounts relate to 100 g of the dispersed polymer.

Abstract: An ink including an aqueous dispersion of a metallic pigment and a film-forming resin, optionally together with one or more of a pH-adjusting agent, a color agent, a linking agent, an anti-settling agent, and a preservative, is disclosed. A marking instrument, particularly suitable for use with an ink according to the invention, and including a low-density reservoir for storing ink joined in capillary coupling relation to a porous nib, is also disclosed.

Abstract: Disclosed is a polyacetal resin composition including a polyoxymethylene homopolymer or copolymer, an antioxidant, a thermal stabilizer, a polyethylene vinylacetate copolymer and hydroxyl pentacrythritol fatty acid ester. The polyacetal resin composition is excellent in mechanical properties, chemical resistance, heat resistance, dimensional stability, and electrical properties. Further, the composition is advantageous in terms of superior wear resistance and abruption-preventing effect.

Abstract: This invention relates to a resin composition useful as a vibration-damping agent and the like. The resin composition is formulated by adding 1 wt % or more of styrenated phenol obtained by the reaction of a phenol with styrene to a polycyclic aromatic oligomer obtained by condensing a polycyclic aromatic compound containing 2 to 3 rings and formaldehyde. The polycyclic aromatic oligomer is obtained by the reaction of a polycyclic aromatic compound with formaldehyde and, if necessary, further with a phenol in the presence of an acid catalyst and has a number average molecular weight of 300–1000. The styrenated phenol is obtained by the reaction of 1 mole of a phenol with 1–2.5 moles of styrene in the presence of an acid catalyst.

Abstract: The polyacetal resin composition contains about 0.01–10 parts by weight of a glyoxyldiureide compound per 100 parts by weight of polyacetal resin. The glyoxyldiureide compound includes glyoxyldiureide and its derivatives (metal salts etc.). Optionally, about 0.01–10 parts by weight of a basic nitrogen-containing compound is further added. The basic nitrogen-containing compound includes melamine, melamine resin, and polyamide resin. Further, an antioxidant may be further added. The above composition contributes to stability, particularly heat stability, of polyacetal resin and suppression of emission of formaldehyde.

Abstract: A binder for inorganic fiber, which comprises an aldehyde condensable thermosetting resin precursor and a fluorocarbon compound having a polyfluoroalkyl group.

Abstract: The invention relates to thermoplastic moulding materials containing A) 29 to (100 wt. % minus 1 ppb) of at least one thermoplastic polymer. B) 1 ppb to 1 wt. % or at least one polyethyleneimine homopolymer of copolymer, as well as C) 0 to 70 wt. % of other additives, as the essential constituents thereof. The weight percent of constituents A) to C) amounts to 100% in every case.

Abstract: A polymer scale preventive agent for use in the polymerization of a monomer containing an ethylenic double bond is provided. The agent includes (A) a condensation reaction product obtained by reacting an aldehyde compound and a hydroxynaphthalene-based compound in the presence of a reducing agent, and (B) a polymer compound containing a nitrogen atom. This agent is capable of forming a coating with satisfactory scale prevention properties on inner wall surfaces of a polymerization vessel with a single-stage application, enabling the production process time to be shortened and the productivity and quality of polymeric products improved.

Abstract: An abradable dry powder coating (22) composition for coating onto a surface (12) for subsequent curing to form into an abradable coating, including a powder (16) formed of uncured thermoset resin with at least 15 volume percent filler, wherein the filler does not substantially melt below the cure temperature of the resin. Method for making the coating composition includes melt-mixing the thermoset resin with at least 15 volume percent of filler, cooling the resulting mass composite, and then breaking the cooled mass composite into powder particles (16). Method of coating an article with an abradable coating includes applying the dry composite powder with the filler therein onto a substrate and curing the dry powder composition, preferably by electrostatic coating. An article is also disclosed which is coated with the abradable coating.

Abstract: A polymer comprises an acetal-containing monomer unit having the general structure I and at least one of the fluorine-containing monomer units having the general structures II and III: wherein R1, R4, R5 and R6 are each independently H, lower alkyl, CH2CO2R10, cyano, CH2CN, or halogen, wherein R10 is any alkyl, cycloalkyl, aryl, arylalkyl, alkylenecycloalkyl, silyl or siloxy or linear or cyclic polysiloxane group; R2 is CHR11R12 where R11 and R12 are each independently H, lower alkyl, cycloalkyl or aryl; A is a substituted or unsubstituted alkylene, cycloalkylene, alkylenecycloalkylene, or alkylenearylene; and R3 is linear, branched or cyclic fluoroalkyl group or SiR13R14R15 where R13, R14, and R15 are each independently alkyl, cycloalkyl, aryl, arylalkyl, alkylenecycloalkyl, silyl, siloxy, linear or cyclic polysiloxane or silsesquioxane alkyl group; B is an aryl, C(═O)—O—(CH2)x where x=0-4, lower alkyl, cycloalkyl, alkene cycloalkyl, silyl, siloxyl, or linear or cycl

Abstract: A water-based ink comprising colored particles, which comprise a dye and a polymer having an acetal group.

Abstract: A colored composition contains a colorant carrier including a transparent resin, a precursor thereof, or a mixture of the transparent resin and the precursor, a colorant, and an organic liquid medium. The organic liquid medium consists of an organic solvent (a) having a boiling point at 760 mmHg of 100° C. or higher but lower than 160° C., and an organic solvent (b) having a boiling point at 760 mmHg of 160° C. or higher but lower than 215° C. The organic solvent (b) is contained in an amount of 3% to 35% by weight based on the total amount of the colored composition.

Abstract: A composition and method for forming a hydrocarbon polymer composition of molded articles that exhibit desirable combinations of stiffness and impact resistance, wherein the composition contains a mineral filler.

Abstract: The present invention relates compositions containing acetoacetylated polyvinyl polymers obtained from polyvinyl polymers, such as polyvinyl butyrals. These coating compositions are especially suitable for use as wash primers in automotive OEM and refinish coating applications.

Abstract: The use of whitening pigments comprising (a) a melamine-formaldehyde or phenol-formaldehyde polycondensation product and (b) a water-soluble fluorescent whitening agent of formula (1), wherein R1 and R2 are each independently of the other —OH, —Cl, —NH2, —O—C1-C4alkyl, —O—aryl, —NH—C1-C4alkyl, —N(C1-C4alkyl)2, —N(C1-C4alkyl)(C1-C4hydroxyalkyl), —N(C1-C4hydroxyalkyl)2, or —NH—aryl, for example aniline-mono- or -di-sulfonic acid or an anilinesulfon-amide, morpholino, S—C1-C4alkyl(aryl), or a radical of an amino acid, for example aspartic acid or inimoacetic acid, which radical is substited at the amino group, and M is hydrogen; sodium; potassium; calcium; magnesium; ammonium; mono-, di-, tri- or tetra-C1-C4alkylammoniun; mono-, di- or tri-C1-C4hydroxyalkylammonium; or ammonium di- or tri-substitue by a mixture of C1-C4 alkyl and C1-C4hydroxyalkyl groups, for whitening paper coating compositions.

Abstract: Disclosed is an ink composition comprising (a) an aldehyde copolymer ink vehicle, (b) a nonpolymeric aldehyde viscosity modifier, (c) a colorant, (d) an optional conductivity enhancing agent, (e) an optional antioxidant, and (f) an optional UV absorber.

Abstract: The present invention relates to a polyacetal ABA type block copolymer having a liquid hydrogenated polybutadiene block hydroxyalkylated at both end having a specific monomer structure in the main chain and a polyacetal resin composition comprising the block copolymer and a specific polymer compound or an inorganic filler. The block copolymer and the resin composition can satisfy 4 characteristics necessary for materials for large-diameter gears, i.e. (1) high cycle capability (high productivity), (2) high roundness, (3) distinguished dimensional stability and (4) distinguished durability at the same time and provide useful materials for large-diameter gears having a pitch circle diameter of 60 mm or more.

Abstract: The present invention provides a resin composition comprising: (1) a vinyl copolymer obtained from a starting material containing vinyl monomer (a) which comprises at least one carbonyl group or aldehyde group and vinyl monomer (b) which is different from vinyl monomer (a) and capable of copolymerization; (2) a hydrazide derivative represented by general formula (I):  (wherein R1 represents substituted or unsubstituted phenylene, substituted or unsubstituted cyclohexylene or alkylene; and R2 and R3, which may be the same or different, each represent a single bond or alkylene) or a hydrazide derivative in which the amino group(s) of the hydrazide derivative represented by general formula (I) are protected with a low molecular carbonyl compound; and (3) a polyamine compound represented by general formula (II):  (wherein R4 represents substituted or unsubstituted phenylene, substituted or unsubstituted cyclohexylene or alkylene; and R5 and R6, which may be the sam

Abstract: A method for microencapsulating red phosphorus in polymerized urea resorcinol formaldehyde resin is disclosed. The method entails (i) preparing an aqueous mixture containing urea, resorcinol and formaldehyde, (ii) adding hexamethylene tetramine and optionally water to the mixture to yield a stabilized mixture (iii) dispersing red phosphorus in the to the stabilized mixture (iv) adding acid to the reaction mixture, and (v) collecting the resulting encapsulated red phosphorus. The product is suitable as flame retarding agent in molding compositions.

Abstract: The present invention relates to a process for reducing formaldehyde emission from thermoplastics mixed with polyacetal, which comprises melting the thermoplastic mixture in the presence of at least one stabilizer in a mixing assembly and subjecting it to further processing steps. During this process, formaldehyde emission deriving from decomposition of the polyacetal is markedly reduced by adding suitable additives/stabilizers.

Abstract: Molding compositions made from linear polyoxymethylene copolymers which essentially have oxymethylene units and oxyethylene units as structural units in the polymer chain, where the proportion of oxyethylene units in the structural units of the polymer chain is from 1.5 to 2.5 mol %. These molding compositions, and also uncolored or colored moldings produced from these have high stability and extremely low emission of formaldehyde and of residual monomers. At the same time they have a high level of mechanical properties, and they can therefore be utilized without restriction for the customary application sectors and processing methods.

Abstract: A polymer comprises an acetal-containing monomer unit having the general structure I and at least one of the fluorine-containing monomer units having the general structures II and III: 1

Abstract: A water-in-oil emulsion (a) with a content of water and optionally water-soluble substances totaling at least 70% by weight, and with a content of lipids, emulsifiers and lipophilic constituents totaling at most 20%, in each case based on the total weight of the preparations, (b) with a lipid phase whose total polarity is between 20 and 45 mN/m, (c) comprising at least one interface-active substance chosen from the group of substances of polyethers of an oligomeric or polymeric molecular unit B, the monomers of which are branched or unbranched &agr;, &ohgr;-alkylene glycols (&agr;, &ohgr;-dihydroxyalkanes) having 3-25 carbon atoms and two units A composed of polyoxyethylene groups, where the molecular units A and B are linked together according to the scheme A-O-B-O-A via ether groups, (d) comprising at least one substance chosen from the group of cationic polymers.

Abstract: The polyacetal resin composition contains about 0.01-10 parts by weight of a glyoxyldiureide compound per 100 parts by weight of polyacetal resin. The glyoxyldiureide compound includes glyoxyldiureide and its derivatives (metal salts etc.). Optionally, about 0.01-10 parts by weight of a basic nitrogen-containing compound is further added. The basic nitrogen-containing compound includes melamine, melamine resin, and polyamide resin. Further, an antioxidant may be further added. The above composition contributes to stability, particularly heat stability, of polyacetal resin and suppression of emission of formaldehyde.

Abstract: The invention relates to compositions comprising at least one polymer and at least one plasticizer, in which compositions the polymer is semi-crystalline and exhibits a processing temperature equal to or greater than 220° C., preferably 250° C., and the plasticizer is an aromatic benzenesulphonamide represented by the general formula (I) in which R1 represents a hydrogen atom, a C1-C4 alkyl group or a C1-C4 alkoxy group, X represents a linear or branched C2-C10 alkylene group, or a cycloaliphatic group, or an aromatic group, Y represents one of the groups OH or R2 representing a C1-C4 alkyl group or an aromatic group, these groups optionally themselves being substituted by an OH or C1-C4 alkyl group.

Abstract: Thermoplastic polyoxymethylene molding materials containing A) from 10 to 99.98% by weight of a polyoxymethylene homo- or copolymer B) from 0.005 to 2% by weight of a sterically hindered phenol C) from 0.001 to 2% by weight of a polyamide D) from 0.002 to 2% by weight of an alkaline earth metal silicate or of an alkaline earth metal glycerophosphate E) from 0.01 to 5% by weight of at least one ester or amide of saturated or unsaturated aliphatic carboxylic acids of 10 to 40 carbon atoms with polyols or aliphatic saturated alcohols or amines of 2 to 40 carbon atoms or an ether which is derived from alcohols and ethylene oxide F) from 0 to 5% by weight of a melamine/formaldehyde condensate G) from 0 to 74% by weight of further additives, the sum of the percentages by weight of the components A) to G) being 100% in each case.

Abstract: A moderately conductive synthetic resin composition comprising a synthetic resin (A), a carbon precursor (B) and at least one conductive filler (C) selected from the group consisting of a non-fibrous conductive filler and a metallic fibrous material, both, having a volume resistivity lower than 102 &OHgr;·cm, and a moderately conductive synthetic resin composition comprising a synthetic resin (A), a carbon precursor (B) and carbon fiber (E).

Abstract: A coating composition for forming abrasion-resistant, high clarity coatings is described. It has been found that a macrocrystalline or single crystal mineral abrasive can be added at high levels, about 5 to about 80 percent by weight, to art-recognized film-forming resin compositions for producing coatings exhibiting exceptional abrasion resistance and clarity. Such a coating composition is useful for application to surfaces including wood, vinyl, tile, rubber modified cement, marble, metal, plastic, and laminated surfaces.

Abstract: A one-step, in-situ, process for producing a high solids content emulsion or dispersion of partially or totally crosslinked urea formaldehyde (UF), melamine formaldehyde (MF), or melamine urea formaldehyde (MUF) resin droplets or particles, by forming a reaction mixture of (i) aqueous formaldehyde (formalin), (ii) at least one water-soluble protective colloid, (iii) water and (iv) optionally a surfactant, and mixing the reaction mixture in a reaction vessel; optionally adjusting the initial pH of the reaction mixture according to a desired value as needed; adding (i) urea or substituted urea, (ii) melamine or substituted melamine, or (iii) a mixture thereof, to the reaction mixture; and heating the reaction mixture to a temperature at which condensation takes place between the (i) urea or substituted urea, (ii) the melamine or substituted melamine, or (iii) the mixture thereof, and the formaldehyde to form a urea formaldehyde, melamine formaldehyde or melamine urea formaldehyde resin, and holding the reaction

Abstract: An additive that is used in conjunction with certain dibenzylidene sorbitol-type (DBS) clarifiers and acid scavengers within polyolefin resins to reduce the release of aldehydes from polypropylene material is disclosed. Hydrazides have been shown to be effective at removing residual aldehyde from polyolefins, such as polypropylene. This function can be accomplished with a minimal impact on optical transparent properties imparted to the polypropylene by the clarifying agent. The net effect is an improvement in the organoleptic performance of resins containing clarifiers, and a reduction in the UV-absorbing extractables. Particularly, adipic dihydrazide, when co-compounded into polypropylene homopolymer with 4-methyl DBS, improves the organoleptic performance of the clarifier. Incorporation of dihydrazides into polypropylene pellets reduced air-released aldehyde by nearly 100%.

Abstract: The invention discloses improvements in the so-called coated thermal flow process for reducing the pattern dimension of a patterned resist layer on a substrate to accomplish increased fineness of resist patterning, in which a coating layer of a water-soluble resin formed on the patterned resist layer is heat-treated to effect thermal shrinkage of the coating layer with simultaneous reduction of the pattern dimension followed by removal of the coating layer by washing with water. The improvement of the process is obtained by using an aqueous coating solution admixed with a water-soluble amine compound such as triethanolamine in addition to a water-soluble resin such as a polyacrylic acid-based polymer.

Abstract: A combination of a semi-soluble methacrylic polymer and a sulfonated naphthalene condensation product, optionally with a semi-soluble or insoluble ethyl methacrylate polymer of high molecular weight, provides improved resistance to staining by acid colorants of fibrous polyamide substrate.

Abstract: This invention relates to furan no-bake foundry binders comprising (a) furfuryl alcohol and/or a reactive furan resin, (b) an activator selected from the group consisting of resorcinol, resorcinol pitch, and bisphenol A tar (c) a bisphenol compound (d) a polyol selected from the group consisting of polyester polyols, polyether polyols, and mixtures thereof, and preferably (e) a silane. The binders are cured in the presence of the furan curing catalyst. The invention also relates to foundry mixes prepared with the binder, foundry shapes prepared with the foundry mix, and metal castings prepared with the foundry shapes.