Abstract: A new category of multi-purpose polymers is presented, the polymers being capable to serve as a cement dispersing agent and which at the same time are set-accelerating and do have shrinkage reducing- and anticorrosive properties to steel. The polymers are ester and amide group-modified acrylic polymers, obtainable by a polymer analogous esterification of a polyacrylic acid with 1) a monofunctional polyalkyleneglycol-monoalkylether, 2) a tertiary alkanolamine and optionally 3) by amidation with a amino-polyalkylenglycol alkylether. The multi-purpose polymers serve for cement dispersing admixture for concrete with set accelerating, shrinkage compensating and anticorrosive properties to steel.

Abstract: An additive consisting of (poly)ethyleneglycol monocycloalkylether of a specified kind, (poly)alkyleneglycol or (poly)alkyleneglycol monoalkylether of another specified kinds, an organic phosphoric acid ester of still another specified kind and an antifoaming agent in a specified ratio, when used at a specified ratio, can provide hydraulic cement compositions with reduced bleeding of water after the placing and reduced dry shrinkage of hardened objects.

Abstract: Methods and compositions for forming permeable cement sand screens in well bores are provided. The compositions are basically comprised of a hydraulic cement, an acid soluble particulate solid, a liquid hydrocarbon solvent soluble particulate solid, a particulate cross-linked gel containing an internal breaker which after time causes the gel to break into a liquid, water present in an amount sufficient to form a slurry, a gas present in an amount sufficient to form a foam and a mixture of foaming and foamed stabilizing surfactants.

Abstract: The present invention relates to a self-leveling composition for floor toppings, characterized in that it is based on Portland cement or on cement mix CM II or CM III, and in that it further comprises at least sand, water and at least one plasticizer which is a water-soluble or water-dispersible organic compound (I) containing at least one aminodi(alkylenephosphonic) group and at least one polyoxyalkyl chain, or at least one salt of compound (I).

Abstract: A new and improved composition includes a mixture of: a quantity of a nontoxic premixed mixture of ground cellulose-containing material, plaster of paris, and starch preservative; a quantity of a nontoxic water-based adhesive resin; and a quantity of talcum powder. The water-based adhesive resin is preferably a water-based polyvinyl alcohol resin. The composition of the invention may also include a quantity of a colored acrylic paint.

Abstract: The invention provides: an aggregate comprising a core made of an elastic material and a surfacing material adhered thereon by use of a resin, a manufacturing process of the novel aggregate comprising such steps as mixing 100 parts by weight of a core made of an elastic material with 0.1 to 20 parts by weight of a resin to cause the resin to stick uniformly on the surface of the core, and thereafter, contacting and mixing the core with 1 or more part by weight of a surfacing material having one-tenth or less average particle diameter of that of the core; and a resin mortar mixing the novel aggregate, a resin and preferably other additives.

Abstract: The present invention relates to copolymers consisting of (a) 1-99% by weight of structural units of the formula (1)  where R1 is hydrogen or methyl, R4 is C1-C22-alkylene, R5 is C1-C22-alkyl or hydrogen, and X is ammonium, lithium, sodium, potassium, an amine or a mixture of these substances, and (b) 99-1% by weight of structural units of the formula (2)  where R1 is hydrogen or methyl, R2 and R3, independently of one another, are hydrogen, or C2-C22-alkyl, wherein component b) is not hydrolysed and the copolymers have been prepared by a solution precipitation polymerization in a nonaqueous solvent or a water-miscible, organic solvent having a low water content which is a precipitant for the copolymer. The invention furthermore relates to a process for cementing subterranean wells using a cement slurry comprising the following components: a) water of various salinity cement a novel copolymer in a concentration of 0.01-5% bwoc, preferably from 0.05 to 0.

Abstract: A cement dispersant having excellent ability to prevent slump loss and high water-reducing property which comprises a polycarboxylic acid type polymer having a specific molecular weight distribution, a method for the production thereof, and a cement composition using the dispersant are provided. The cement dispersant comprises as a main component thereof a polycarboxylic acid type polymer (A), having a weight average molecular weight in the range of 10,000 to 500,000 in terms of polyethylene glycol determined by gel permeation chromatography, and having a value determined by subtracting the peak top molecular weight from the weight average molecular weight in the range of 0 to 8,000.

Abstract: A photoluminescent material is prepared by preparing a gel from a solution of the resin in a solvent, and pyrolyzing the resin gel in oxygen by heating the gel to a temperature above approximately 400° C. for about two hours.

Abstract: A cement dispersant composed of water-soluble vinyl copolymers which include specified kinds of constituent units at specified ratios and of which the weight average molecular weight pullulan converted by GPC method is 15000-150000 and the ratio of weight average molecular weight to number average molecular weight is 2-7 is used together with cement, aggregates and water to produce concrete with the water-to-cement ratio of 20-45%.

Abstract: Mortar cement additives provide workability while retaining strength by employing a multi-stage polymer comprising a hydrophobically-modified, ionically-soluble polymer stage, the polymer being soluble at a pH of 6 and above; and an air-entraining agent. The additives also employ, as optional ingredients, set retarding agents and superplasticizers. Examplary methods of the invention involve addition of the multi-stage polymer and an air entraining agent to the mortar cement, preferably during intergrinding of Portland cement in the mill. Cement compositions comprising the polymer and an air-entraining agent are also disclosed.

Abstract: A composition for producing light plaster contains as main constitutive elements particles of plaster in anhydride or hemihydrate form and at least one foaming agent. The composition is characterized in that the foaming agent generates gas after a delay of 1 minute to 24 hours and constitutes 0.1 to 50% by weight of the total dry mixture. Also disclosed is the use of said composition to produce in-situ cellular plastic and low density plaster moldings.

Abstract: A curable two-component composition with curable organic and curable inorganic constituents and with curing agents, the curing agents being separated from the respective curable constituent so as to inhibit reaction, but activatable for application or use, containing epoxide and the finely particulate cement as curable constituents and amine and alkali silicate as curing agent.

Abstract: A polymer film comprising at least first and second contiguous and coextruded portions, wherein the first portion is extruded from a first polymer composition containing a filler material in an amount sufficient to increase the water vapor permeability of the first portion relative to the second portion, and the second portion is extruded from a second polymer composition such that a tensile strength of the second portion is greater than the tensile strength of the first portion. Such polymer films allow for highly vapor permeability, while providing portions with sufficient strength to allow for taping or attachment of fastening devices.

Abstract: This invention discloses a polymer composition, a cement slurry containing said polymer composition and a method of using the cement slurry to cement a borehole penetrating a subsurface earth formation wherein the polymer composition is made by polymerizing a vinylamide morpholine derivative with a styrene sulfonic acid salt in the presence of a humate. The polymer composition operates to reduce fluid loss from the cement slurry to the subsurface formation.

Abstract: This invention discloses a polymer composition, a cement slurry containing said polymer composition and a method of using the cement slurry to cement a borehole penetrating a subsurface earth formation wherein the polymer composition is made by polymerizing a vinylamide morpholine derivative and at least one branched N-vinylamide derivative in the presence of a humate. The polymer composition operates to reduce fluid loss from the cement slurry to the subsurface formation.

Abstract: A method for the dispersion of cement, which comprises incorporating in a cement composition consisting at least of cement and water a cement dispersing agent formed of a polymer obtained by polymerizing a monomer component containing an alkoxy polyalkylene glycol mono(meth)acrylic ester monomer produced by the interesterification of an alkoxy polyalkylene glycol and a (meth)acrylic ester. A cement composition comprising the cement dispersing agent, cement and water.

Abstract: Moulded bodies are described which comprise a humus-containing plant substrate consolidated with polyurethane/polyurea, which are obtainable by slurrying a humus-containing plant substrate in water, admixing a liquid NCO prepolymer having a maximum NCO content of 15% by weight which has been produced by the reaction of toluene diisocyanate with a polyether polyol component containing at least one aminopolyether polyol in an amount of 0.5 to 100 mole % with respect to the polyol component, and introducing the mixture thus obtained into a mould and allowing it to solidify. A process for producing these moulded bodies is also described, as is their use as growth media for seedlings in the propagation and raising of plants.

Abstract: Phenolsulfonic acid-formaldehyde condensates are used as assistants in the drying of aqueous polymer dispersions.Also described are a process for preparing polymer powders by drying, using these condensates; the polymer powders obtainable by the process; and their use as binders.

Abstract: There is disclosed a synthetic resin powder comprising a polymer made from an ethylenically unsaturated monomer or a diolefinic monomer and a polyvinyl alcohol chemically bonded through a sulfide bond at an end thereof to the surface of a particle of the polymer. Although the synthetic resin powder of the present invention can be in the form of powder during transportation, it can easily be dispersed in water by adding water thereto under stirring, because it is excellent in dispersibility in water and blocking resistance. The synthetic resin powder is excellent also in film forming properties, and thus can preferably be used as an admixture for a mortar, etc.

Abstract: This invention discloses a composition and a method of using the composition to cement a borehole penetrating a subsurface earth formation. The composition, the random polymerization product of two or three different vinyl-containing monomers including a vinylamide morpholine derivative, operates to reduce fluid loss from the cement slurry used to cement the borehole to the subsurface formation.

Abstract: Polymers composed of at least >80% by weight of monomers of the formula ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each C.sub.1 -C.sub.3 -alkyl,R.sup.4 is C.sub.1 -C.sub.5 -alkyl andX is 0 or NH,are used as assistants in the drying of aqueous polymer dispersions and, in the case of a weight average relative molecular weight of from 5000 to 35,000, additionally as protective colloid for the preparation of aqueous polymer dispersions by the free radical aqueous emulsion polymerization method.

Abstract: An additive for, a method of adding thereof to uncured mixes for and resulting cured cement-type concreations such as cured embodiments of concrete, marcadam, and roof-top shingles each exhibiting improved heat and freeze-thaw durability resulting from reduced efflorescence and stability against sun ultraviolet light exposure.

Abstract: Water-soluble vinyl copolymers with number average molecular weight 500-20000, having two specified repetition units at a specified molar ratio and a specified end group can serve as an effective agent for reducing a drop in the fluidity of hydraulic cement compositions.

Abstract: A cement additive is added to increase flowability of a cement composition and to prevent a slump loss, but those characters are insufficient, or the cement additive becomes ununiform in the cement composition and causes a trouble of the hardening inferiority.Thus, to solve the subjects, the present invention provides a cement additive composed of a crosslinked polymer in which, between main chains having a water-soluble polymer structure of a molecular weight from 500 to 100,000, a bond having as a structural unit at least one group selected from divalent groups as shown in the following formula (I) is formed. ##STR1## ?In the formula (I), R.sup.1 and R.sup.2 independently denote any one of the following. ##STR2## However, R.sup.1 may not be required in a case of that R.sup.2 is the following. ##STR3## Moreover, R and R' independently denote an alkyl group of carbon number of 1 to 5.

Abstract: The bonding between concrete and fibers is enhanced by using a fiber coating material selected from certain glycol ethers, having at least three carbon atoms in an oxyalkylene group, and glycerol ethers. The present invention pertains to such coated fibers, a method for modifying a concrete using the coated fibers, and a cementitious composition containing the coated fibers.

Abstract: The hardenable mortar composition consists of a bonding agent component including a hydraulic bonding agent, such as cement, gypsum or mortar, and a paste-forming agent consisting of a liquid solvent inert with respect to the hydraulic bonding agent, and an aqueous component kept separate from the bonding agent component until the two components are mixed to form a hardened mortar composition. The aqueous component includes water and a hydrophobic adsorbent or absorbent. The hydrophobic adsorbent or absorbent is included in the aqueous component to avoid the emergence of the paste-forming agent, which is at the very least unsightly, when the aqueous component is mixed with the bonding agent component. The hydrophobic adsorbent or absorbent binds the paste-forming agent which would otherwise escape during mixing and remains as an inert additive in the setting mortar composition, without reducing the hardness thereof.

Abstract: Polymers I comprising from 15 to 80% by weight of monomers of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each C.sub.1 -C.sub.3 -alkyl, R.sup.4 is C.sub.1 -C.sub.3 -alkyl and X is O or NH, and from 20 to 85% by weight of other monomers capable of undergoing free radical copolymerization are used as assistants in the spray drying of aqueous dispersions of polymers II which differ from the polymers I. The resultant powders are added to mineral binders.

Abstract: Copolymers containing carboxyl groups in aqueous dispersion form or redispersible powder form and their water-soluble salts, based on ethylenically unsaturated and copolymerizable monomers, the macro-molecules of which contain at least 24% by weight of monomer units carrying carboxyl groups prepared, by emulsion copolymerization initiated by free radicals in the presence of polyvinyl alcohol (PVA) or polyvinylpyrrolidone (PVP) dissolved in the aqueous phase and isolation of the copolymers in aqueous dispersion form, and optionally subsequent removal of water by spray drying to obtain redispersible copolymer powders and processes for their preparation and their use as thickeners in aqueous formulations which copolymers, by conversion into their water-soluble salt forms, are useful as thickening agents having a surprisingly advantageous rheology-modifying action in aqueous systems.

Abstract: Water soluble polymers are prepared from an allyloxybenzenesulfonic acid monomer, a methallyl sulfonic acid monomer, a copolymerizable nonionic monomer, and a copolymerizable olefinically unsaturated carboxylic acid monomer. Aqueous compositions containing the water soluble polymers and nonionic surfactants are stable to phase separation of the polymer from the nonionic surfactant.

Abstract: The present invention provides resilient cement compositions and methods which are particularly useful in the construction and repair of oil and gas wells. The cement compositions have improved mechanical properties including elasticity and ductility and are basically comprised of cementitious material, an aqueous rubber latex and a latex stabilizer.

Abstract: The disclosure describes a flame-retardant polyester resin composition comprising: (1) 100 parts by weight of a polyester resin which may contain a halogen atom;(2) 0.01 to 5 parts by weight of a polyhydric alcohol having not less than 3 hydroxyl groups in the molecule with a hydroxyl group concentration of 1.0.times.10.sup.-2 to 3.5.times.10.sup.-2 eq/g;(3) 0 to 20 parts by weight of an inorganic flame retarding synergist; and(4) 0 to 50 parts by weight of a halogen-based flame retardant,the halogen content in the composition being 0.1 to 20% by weight.

Abstract: Cement comprising hydraulic cement and polymer precursor such as alcohol-soluble phenol resin precursor that is substantially anhydrous and generates water by polymerization.

Abstract: When a cement dispersant comprising a polymer which is obtained by co-condensating monomers comprising monomer (A) and monomer (B) with formaldehyde, or a salt obtained by neutralizing the polymer, wherein the monomer (A) is an aromatic compound having, on the average, 1 to 300 mol per molecule of at least one member selected from the group consisting of oxyethylene group and oxypropylene group, and the monomer (B) is an aromatic compound having a carboxyl group; or another cement dispersant comprising a polymer which is obtained by co-condensating monomers comprising the above-described monomer (A), the above-described monomer (B) and monomer (C) which is an aromatic compound having a sulfonic acid group with formaldehyde, or a salt obtained by neutralizing the polymer is used as one component of a hydraulic composition, the fluidity of the hydraulic composition is maintained for a long time. Therefore, no trouble on transportation is caused during the force feeding of the hydraulic composition with a pump.

Abstract: A floor paint composition superior in resistance to oil and solvents, and in early strength. The composition is mainly composed of a synthetic resin emulsion based on an from anion copolymer obtained from the copolymerization of .alpha.-type hemihydrate gypsum, cement and ethylene unsaturated monomer. The ratio of weight of .alpha.-type hemihydrate gypsum to cement is between 80:20 and 95:5. The ratio of the solid content of the synthetic resin relative to 100 parts by weight of the mixture of .alpha.-type hemihydrate gypsum and cement is between 15 and 35 parts by weight. The anion copolymer contains at least one unit of a monomer selected from the group consisting of ethylene unsaturated carboxylic acid, ethylene unsaturated sulfonic acid and ethylene unsaturated phosphonic acid. The copolymer can include an ethylene unsaturated monomer having at least one organic silicon radical. The synthetic resin emulsion can include epoxy silane.

Abstract: The present invention relates to a gelled fluoride resin fine particle dispersion for use as a coating, to a method of production thereof, and to a method using this gelled fluoride resin fine dispersion to protect an alkaline inorganic hardened body.The objective of the present invention is to provide an aqueous resin for use as a coating, this aqueous resin being able to form a high performance coating film that is superior in its ability to inhibit the leaching out of the alkaline substance from the alkaline inorganic hardened body, which has excellent weatherability, water resistance, alkaline resistance, and dirt picking resistance.The present invention accomplishes the stated objective through the utilization of gelled fine particles of a fluorine containing resin.The present invention may be used in the coating field.

Abstract: Cement comprising hydraulic cement and polymer precursor such as alcohol-soluble phenol resin precursor that is substantially anhydrous and generates water by polymerization.

Abstract: Polymers I comprising from 15 to 80% by weight of monomers of the general formula I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each C.sub.1 -C.sub.3 -alkyl, R.sup.4 is C.sub.1 -C.sub.5 -alkyl and X is O or NH, andfrom 20 to 85 % by weight of other monomers capable of undergoing free radical copolymerizationare used as assistants in the spray drying of aqueous dispersions of polymers II which differ from the polymers I.

Abstract: A polymer concrete pipe liner is formed from a fluidized, but substantially waterless cement containing mixture applied to the pipe interior. The mixture contains inorganic cement particles, a liquid styrene mixture and one or more poly-olefinically unsaturated co-monomers in a greater amount than the styrene. The mixture substantially excludes acrylonitrile and acrylamide. The co-monomers are preferably selected from a group including trimethylolpropane-trimethacrylate, trimethylolpropane-methacrylate, divinyl benzene, and hexadiene. Mixing liquid and solid aggregate components forms a slurry which is transferred to a pipe interior and centrifugally cast to form the liner. The composition avoids the need for high temperature curing the toxic reactive unsaturates to co-polymerize and cross-link polystyrene.

Abstract: Phosphomagnesia compositions settable into improvedly water-insensitive cements that retain their mechanical properties comprise an intimate admixture of (i) a binder phase including (a) at least one phosphorous compound (P.sub.2 O.sub.5 or derivative/precursor thereof) and (b) at least one magnesium compound reactive therewith in the presence of water, (ii) an effective amount of cementitious aggregate, and (iii) a water sensitivity-reducing amount of at least one silicone homogeneously distributed therethrough.

Abstract: The invention provides a redispersibte dispersion powder composition comprisinga) a base polymer selected from the group consisting of vinyl ester polymers, styrene polymres, acrylate polymers and vinyl chloride polymers,b) from 2 to 15% by weight, based on the weight of the base polymer, of polyvinyl alcohol having a degree of hydrolysis of from 85 to 95 mol % and a Hoppler viscosity of from 2 to 25 mPa.s,c) from 3 to 30% by weight, based on the total weight of polymeric components, of fine antiblocking agent, andd) from 1 to 15% by weight, based on the weight of the base polymer, of an aminofunctional polyvinyl alcohol soluble in cold water and having a Hoppler viscosity of from 1 to 20 mPa.s and a saponification number of from 0 to 250, which comprises residues of aminofunctional vinyl units of the formula CH.sub.2 .dbd.CH--(CH.sub.2).sub.x --NH.sub.2, wherein x is a number of from 0 to 4.

Abstract: A solidified waste is formed from a difficult-to-compact hydraulic cement slurry for use in the disposal of hazardous waste. The slurry contains inorganic non-compactible hydraulic cement particles, a concrete superplasticizer compound, water, and filler particles containing radionuclide and/or toxic contaminants. The slurry is then transferred to a storage vessel, such as a subterranean formation, to cast a stronger, denser solidified waste than a comparable solidified waste containing no superplasticizer.

Abstract: Water soluble polymers are prepared from an allyloxybenzenesulfonic acid monomer, a methallyl sulfonic acid monomer, a copolymerizable nonionic monomer, and a copolymerizable olefinically unsaturated carboxylic acid monomer. The polymers are used to disperse particulate matter and to inhibit the formation and deposition of mineral scale in aqueous systems and are used in detergent compositions.

Abstract: Phosphomagnesia compositions settable into improvedly water-insensitive cements that retain their mechanical properties comprise an intimate admixture of (i) a binder phase including (a) at least one phosphorous compound (P.sub.2 O.sub.5 or derivative/precursor thereof) and (b) at least one magnesium compound reactive therewith in the presence of water, (ii) an effective amount of cementitious aggregate, and (iii) a water sensitivity-reducing amount of at least one silicone homogeneously distributed therethrough.

Abstract: A silicone rubber binder composition is provided which includes silicone rubber, silicon dioxide and an aggregate such as sand, gravel, cinders and the like. The silicone rubber is preferably an RTV silicone rubber which is solubilized using a solvent and mixed with the silicon dioxide and aggregate. The mixture may be spray applied to form a roofing coating or may be molded to form another building element such as a beam, post, block, shingle, wallboard or the like.

Abstract: The water-soluble copolymer comprises 5-90% by weight of groups of the formula ##STR1## in which R.sup.1 is hydrogen or methyl, R.sup.2 is C.sub.2 -C.sub.10 -alkylene, and Me is ammonium or an alkali metal, 5-90% by weight of groups of the formula--CH.dbd.CH--CH.sub.2 --N.sup.+ R.sup.3 R.sup.4 --CH.sub.2 --CH.dbd.CH-- X.sup.- IIin which X is a halogen, R.sup.3 and R.sup.4, independently of one another, are C.sub.1 -C.sub.6 -alkyl, 0-60% by weight of groups of the formula ##STR2## in which R.sup.5 and R.sup.6 together are a propylene group which with inclusion of the radical ##STR3## forms a pyrrolidone radical, and 0-30% by weight of groups of the formula--CHR.sup.7 --CHR.sup.8 -- IVin which R.sup.7 is hydrogen or methyl and R.sup.8 is CONH.sub.2, CON(CH.sub.3).sub.2, cyano, SO.sub.3 H, SO.sub.3 Me, C.sub.6 H.sub.4 SO.sub.3 H, C.sub.6 H.sub.4 SO.sub.3 Me, CH.sub.2 SO.sub.3 H, CH.sub.2 SO.sub.3 Me, COOH, COOMe, or carboxy-C.sub.1 -C.sub.

Abstract: The present invention relates to acrylic sulfide fibers whose tensile strength is at least 3.5 g/d, toughness expressed by TE.sup.1/2 product of tensile strength (T g/d) and a square root of tensile elongation (E %), is higher than 10 and sulfur content is higher than 0.5 weight %, a process for producing acrylic sulfide fibers characterized by heating acrylic fibers whose tensile strength is at least higher than 7 g/d in sulfur-containing atmosphere, and composite materials being reinforced with above described acrylic sulfide fibers.Acrylic sulfide fibers obtained have high tenacity and high toughness as well as excellent heat resistance, anti-flammability and alkali resistance.Therefore, above described acrylic sulfide fibers are useful for such applications as heat resistant and flame resistant spun-woven products, reinforcing cement cured in an autoclave and abrasive materials as asbestos substituting fibers.

Abstract: Set retarded cement compositions and methods of using the compositions for cementing zones in wells at temperatures in the range of from about 200.degree. F. to about 450.degree. F. are provided.

Abstract: Ultra high-strength hydraulic cement compositions with extremely low water-to-cement ratio of 10-30% and having high fluidity and improved capability of preventing slump loss, from which high-quality ultra high-strength hardened concrete and mortar can be obtained with superior workability, contain a binder composed of cement or a mixture of cement and a microscopic powder admixture, aggregates, water and a cement dispersion agent composed of water-soluble vinyl copolymers obtained by aqueous solution radical polymerization of five specified kinds of monomers at a ratio within a specified range The unit content of the binder is 400-1300kg/m.sup.3, the water-to-binder ratio is 10-30% and the content of cement dispersion agent is 0.1-2.0 weight parts for 100 weight parts of the binder.

Abstract: An additive for, a method of adding thereof to uncured mixes for and resulting cured cement-type concreations such as cured embodiments of concrete, marcadam, and roof-top shingles each exhibiting improved heat and freeze-thaw durability resulting from reduced efflorescence and stability against sun ultraviolet light exposure.