Abstract: A film-forming, self-crosslinking aqueous synthetic resin dispersion with reduced liberation of formaldehyde contains an emulsion polymer composed of(A) a major portion of an ethylenically unsaturated, free radically polymerizable monomer giving a polymer or copolymer with a glass transition temperature not exceeding 120.degree. C.,(B) N-methylolacrylamide or methacrylamide,(C) optionally further ethylenically unsaturated, free radically polymerizable monomers, and(D) an ethylenically unsaturated, free radically polymerizable monomer carrying a ureido group.

Abstract: There are disclosed normally tacky, pressure-sensitive adhesive compositions comprising one or more normally tacky polymers having a T.sub.g of about 0.degree. C. or less and containing pendant functional groups attached to the backbone and having the formula: ##STR1## in which R.sub.1 is a divalent organic radical at least 3 atoms in length, and X is organoacyl or cyano, the polymers preferably also being normally tacky when cured. Such polymers have markedly improved cohesive strength (shear holding value) with little or no detriment to adhesive tack or adhesion (peel resistance), and these improvements are realized without the necessity of incorporating cross-linking monomers such as N-methylolamides or other cross-linking agents. Pressure-sensitive adhesive, water-based emulsions containing such polymers and pressure-sensitive adhesive articles comprising a substrate having at least a portion of one surface thereof coated with the adhesive compositions are also disclosed.

Abstract: Functionalized polymer microparticles having particle diameters of from about 200 to about 4000.ANG. are prepared and are useful in facilitating a variety of flocculation and thickening of dispersions of suspended solids applications.

Abstract: A process for producing an aqueous copolymer dispersion is disclosed, which comprises emulsion polymerizing 100 parts by weight of a vinyl monomer mixture comprising (A) from 60 to 99.8% by weight of an acrylic ester of an aliphatic saturated alcohol having from 4 to 8 carbon atoms, (B) from 0.2 to 10% by weight of a monomer selected from the group consisting of an .alpha.,.beta.-unsaturated carboxylic acid, an .alpha.,.beta.-unsaturated carboxylic acid anhydride, a 2-hydroxyalkyl acrylate, a 2-hydroxyalkyl methacrylate, acrylamide, methacrylamide, methylolacrylamide, and methylolmethacrylamide, and (C) up to 30% by weight of a vinyl monomer other than the monomers (A) and (B) in the presence of from 0.01 to 10 parts by weight of a compound having an allyl hydrogen atom, with a total amount of the monomers (A), (B) and (C) being 100% by weight.

Abstract: Functionalized polymer microparticles having particle diameters of from about 200 to about 4000 .ANG. are prepared and are useful in facilitating a variety of flocculation and thickening of dispersions of suspended solids applications.

Abstract: Mannich (alk)acrylamide microparticles are produced at high solids contents without a significant increase in bulk viscosity by inverse microemulsion polymerization and provide superior dewatering characteristics.

Abstract: Compositions comprising microparticles of a cross-linkable, glyoxalated (meth) acrylamide containing, polymeric material are disclosed. They are prepared using inverse microemulsion polymerization techniques and are useful as wet- and dry-strength agents in paper production.

Abstract: An ultra-fine particulated polymer latex having an average particle size of 100 nm or less, a crosslinked structure and a glass transition temperature lower than a value calculated by a weight fraction method.

Abstract: Aqueous dispersions of copolymers of(a) from 70 to 85% by weight of nontertiary butyl (meth)acrylates,(b) from 8 to 27.2% by weight of (meth)acrylates (A) whose homopolymers have a glass transition temperature greater than that of the polybutyl (meth)acrylate up to 0.degree. C. and (meth)acrylates (B) whose homopolymers have a glass transition temperature below that of the polybutyl (meth)acrylate, the weight ratio of the (meth)acrylates (A) to the (meth)acrylates (B) being from 3:1 to 1:3,(c) from 2 to 15% by weight of methyl methacrylate, styrene and/or acrylonitrile and(d) 0.8 to 5% by weight of monoolefinically unsaturated mono- and/or dicarboxylic acids of 3 to 5 carbon atoms and/or their amides which are unsubstituted or substituted at the nitrogen atoms by alkyl and/or alkylol radicals of 1 to 4 carbon atoms and/or hydroxyalkyl (meth)acrylates where the alkyl groups are of 2 to 5 carbon atoms,are used for coating sheet-like substrates.

Abstract: Aqueous synthetic dispersions based on copolymers of acryl polymers and/or vinyl polymers containing both hydroxylalkyl(meth)acrylate monomers and etherified N-alkylol(meth)acrylamide monomers. These dispersions are suitable as bonding agents for the production of glossy and solvent-resistant, thermosetting coating materials with good adhesion.

Abstract: A removable pressure sensitive adhesive composition comprises an acrylic-based emulsion polymer having a gel content of from about 70 to about 90% comprises about 90 to 99.5 parts alkyl acrylate monomers, up to about 2 parts polar monomers and up to about one part of a multifunctional acrylate monomer.

Abstract: These aqueous dispersions contain a copolymerizate containing 90 to 99% by weight of repeating units resulting from the polymerization of a mixture of monomers (a) based on 0.1 to 10% by weight of alpha,beta-ethylenic mono- and/or di-carboxylic C.sub.3 -C.sub.5 acid and/or their amides, 0 to 10% by weight of styrene and/or acrylonitrile, the remainder of the esters of (meth)acrylic acid with C.sub.1 -C.sub.12 alkanols; and 10 to 1% by weight of repeating units of general formula (I) ##STR1## where R=H or --CH.sub.3, R.sub.1 =H or C.sub.1 -C.sub.4 alkyl and R.sub.2 and R.sub.3 =C.sub.1 -C.sub.8 alkyl or a --CH.sub.2 --CR.sub.4 R.sub.5 --(CH.sub.2).sub.n --group in which n=0 or 1 and R.sub.4 and R.sub.5 =H or --CH.sub.3.

Abstract: There are disclosed normally tacky, pressure-sensitive adhesive compositions comprising one or more normally tacky polymers having a T.sub.g of about 0.degree. C. or less and containing pendant functional groups attached to the backbone and having the formula: ##STR1## in which R.sub.1 is a divalent organic radical at least 3 atoms in length, and X is organoacyl or cyano, the polymers preferably also being normally tacky when cured. Such polymers have markedly improved cohesive strength (shear holding value) with little or no detriment to adhesive tack or adhesion (peel resistance), and these improvements are realized without the necessity of incorporating cross-linking monomers such as N-methylolamides or other cross-linking agents. Pressure-sensitive adhesive, water-based emulsions containing such polymers and pressure-sensitive adhesive articles comprising a substrate having at least a portion of one surface thereof coated with the adhesive compositions are also disclosed.

Abstract: Aqueous dispersions of copolymers having a glass transition temperature of not more than -45.degree. C. and a K value greater than 80 consist of not less than 80% by weight of acrylates of alkanols of 8 to 12 carbon atoms, from 1 to 4% by weight of .alpha.,.beta.- monoolefinically unsaturated carboxylic acids and/or their amide derivatives and from 0.1 to 3% by weight of .alpha.-methylstyrene, and are used for the production of self-adhesive structures having good tack at as low as -40.degree. C.

Abstract: Sizes for paper are based on finely divided aqueous dispersions of copolymers which are obtainable by copolymerization of from 10 to 56 parts by weight of a monomer mixture of(a) from 20 to 65% by weight of (meth)acrylonitrile,(b) from 35 to 80% by weight of one or more acrylates of monohydric, saturated C.sub.3 -C.sub.8 -alcohols and(c) from 0 to 10% by weight of other ethylenically unsaturated copolymerizable monomers by an emulsion polymerization method in 100 parts by weight of an aqueous solution of from 1.7 to 25% by weight of a degraded starch having a viscosity .eta..sub.i of from 0.12 to 0.50 dl/g, at from 40.degree. to 100.degree. C. in the presence of a peroxide-containing initiator.

Abstract: Water-in-oil emulsions of water-soluble polymers, i.e. polyacrylamides, which are subject to freeze-thaw degradation are stabilized against repeated freeze-thaw cycles by incorporating specific substituted succinic anhydrides.

Abstract: Aqueous dispersions of partially cross-linked copolymer particles useful in aqueous coating compositions is produced by copolymerizing in aqueous emulsion a mixture of: (A) from 1% to 30% of polyethylenically unsaturated monomer; (B) from 3% to 30% of hydroxy-functional monoethylenically unsaturated monomer; (C) from 0.5% top 10% of a salt-forming monoethylenically unsaturated monomer selected from monoethylenic carboxylic acid monomer and monoethylenic amine monomer; and (D) the balance of the copolymer consisting essentially of copolymerizable monoethylenically unsaturated monomer, preferably nonreactive monomer such as vinyl acetate.

Abstract: Water-soluble polymers or copolymers of acrylic and/or methacrylic acid which contain at least 50 base mole percent of these acids and as end groups hydrogen atoms, hydroxyl groups and moieties of a water-soluble mercaptan or moieties with a sulfoxide group formed therefrom are produced in a readily reproducible manner and free of mercaptan odor in aqueous solution by polymerization with an initiator system consisting of hydrogen peroxide, a water-soluble mercaptan and an iron salt and used as calcium-binding additives or as dispersants in aqueous systems.

Abstract: Substrates such as metal and plastic can be protected from the environment by employing a high nitrile polymer coating.

Abstract: Sizing agents for paper are based on finely divided aqueous dispersions of copolymers obtainable by copolymerizing from 40 to 140 parts by weight of a monomer mixture of(a) from 20 to 65% by weight of (meth)acrylonitrile,(b) from 35 to 80% by weight of one or more acrylates of monohydric saturated C.sub.3 -C.sub.8 -alcohols and(c) from 0 to 10% by weight of other ethylenically unsaturated copolymerizable monomers,the weight percentages (a), (b) and (c) always adding up to 100, in the manner of an emulsion polymerization in 100 parts by weight of an aqueous solution containing in solution from 2.7 to 15% by weight of a degraded starch having a viscosity n.sub.i from 0.04 to less than 0.12 dl/g at from 40.degree. to 100.degree. C. in the presence of a peroxide initiator.

Abstract: Polymer water-in-oil emulsions for the production of aqueous flocculants solutions are described in which the oil phase consists entirely or to a large degree of readily biodegradable compounds and these compounds are aliphatic dicarboxylic esters.

Abstract: Surface treating water-absorbent resins with a polyquaternary amine substantially increases both the rate of water absorption and the quantity of water absorbed and retained by the resin. In addition to improved water absorbing properties, the surface-treated resins maintain the necessary "dry feel" required for most applications.

Abstract: Disclosed is a process for preparing relatively low molecular weight, water absorbing, acrylic polymers for use as drilling fluid additives by aqueous polymerization of (A) an acrylic monomer, such as acrylic acid neutralized 0 to 100 mole percent with, for example, ammonia, and/or an alkali such as Na.sub.2 O.sub.3, and/or an amine; with (B) acrylamide in a mole ratio of 70 to 100 mole percent (A) to 30:0 mole percent (B). The molecular weight is limited to 1,000 to 50,000, such as by adding a chain transfer agent to the polymerization mixture, to achieve excellent results as a drilling fluid additive. The monomer, such as partially neutralized acrylic acid, is polymerized in aqueous solution in the presence of a polymerization initiator without external heating while allowing water to evaporate off.

Abstract: The invention provides a process for producing a water-in-oil emulsion of a water-soluble polyacrylamide or polyacrylic acid polymer or copolymer by the inverse emulsion process characterized in that there is used as the emulsifying agent for the water-in-oil emulsion a water-insoluble, oil-soluble surface active agent of the formula (I):X--Y--Z Ior a functional derivative thereof, wherein X- represents a saturated or unsaturated hydrocarbon chain containing from 30 to 500 carbon atoms, --Y-- represents a succinic anhydride residue carried terminally upon the group X--, and --Z represents a hydrophilic group carried by the group --Y--.

Abstract: Water-in-oil emulsions of water-soluble polymers, i.e. polyacrylamides, which are subject to freeze-thaw degradation are stabilized against repeated freeze-thaw cycles by incorporating specific substituted succinic anhydrides.

Abstract: An aqueous dispersion of a vinyl copolymer resin is prepared by polymerizing 1 to 15 parts by weight of a polyoxyethylene-containing hydrophilic polymerizable vinyl monomer of which polyoxyethylene moiety has an average molecular weight of 2,000 to 10,000, 99 to 85 parts by weight of at least one specific polymerizable vinyl monomer and 0 to 5 parts by weight of alpha, beta-unsaturated carboxylic acids, salts thereof or anhydrides thereof in an organic solvent, and dispersing the resulting vinyl copolymer resin solution in water.

Abstract: Floor covering adhesives substantially comprisingA. a dispersion of a copolymer of20-60% by weight of vinylidene chloride34-80% by weight of a mixture of 40-80 parts by weight of esters of acrylic acid with C.sub.1 -C.sub.18 -alkanols and 20-60 parts by weight of vinyl esters and0.5 to 6% by weight of .alpha.,62 -monoolefinically unsaturated C.sub.3 -C.sub.5 -mono- and/or dicarboxylic acids and/or amides thereof and/or vinyl sulfonate,B. 30-150 parts by weight (solid), based on 100 parts of a copolymer of A, of tackifying resins from the group of the rosins and derivatives thereof,C. 0-50 parts by weight, based on 100 parts of resin B, of plasticizers and/or liquid resins and also, if desired,D. fillers,are shampoo-resistant and have a high peel strength.

Abstract: Disclosed is a process for preparing relatively low molecular weight, water absorbing, acrylic polymers for use as drilling fluid additives by aqueous polymerization of (A) an acrylic monomer, such as acrylic acid neutralized 0 to 100 mole percent with, for example, ammonia, and/or an alkali such as Na.sub.2 O.sub.3, and/or an amine; with (B) acrylamide in a mole ratio of 70 to 100 mole percent (A) to 30:0 mole percent (B). The molecular weight is limited to 1,000 to 50,000, such as by adding a chain transfer agent to the polymerization mixture, to achieve excellent results as a drilling fluid additive. The monomer, such as partially neutralized acrylic acid, is polymerized in aqueous solution in the presence of a polymerization initiator without external heating while allowing water to evaporate off.

Abstract: By a new process, inverse microlatices of watersoluble copolymers are prepared by copolymerization within an inverse microemulsion obtained by admixing an aqueous phase containing the hydrosoluble monomers to be copolymerized, an organic phase and a non-ionic surfactant or a mixture of non-ionic surfactants, whose H L B ranges from 8 to 11.The resultant microlatices can be diluted in water so as to form thickened solutions, which can be used to improve the production of hydrocarbons from oil formations, particularly in enhanced recovery methods or methods for preventing water inflows in producing wells.

Abstract: A polymaleate having an average molecular weight of 300 to 5000 is obtained by polymerizing a monoalkali metal maleate or monoammonium maleate at 80.degree. to 180.degree. C. in the presence of a polymerization initiator in an aqueous solvent.

Abstract: Transparent aqueous organopolysiloxane compositions comprising (A) a salt of a water-soluble organic or inorganic acid and a polysiloxane, which contains in addition to the other siloxane units siloxane units containing SiC-bonded monovalent radicals having basic nitrogen atoms in an amount of at least 0.5 percent by weight, based on the weight of the polysiloxane; and (B) an organic silicon compound having basic nitrogen atoms in an amount of from 0 to 0.5 percent by weight, based on the weight of the organic silicon compound; and when constituent (B) does not contain at least one organic silicon compound having a molecular weight greater than 600 g/mol in an amount of at least 0.1 part per part by weight of contituent (A), then an organic solvent (C) is present in an amount up to about 5 percent by weight based on the weight of constituent (A), in which the organic solvent is soluble in water up to about 1 part by weight per 100 parts by weight of water at 20.degree. C. and 1020 hPa (abs.

Abstract: Water soluble salts of acrylic acid are polymerized and co-polymerized with acrylamide by an inverse emulsion polymerization in a water/hydrocarbon emulsion without catalyst to yield high molecular weight polymers.

Abstract: Concentrated, stable water-in-oil emulsions of water-soluble or water-swellable polymers are prepared by polymerization of one or more water-soluble ethylenically unsaturated monomers in a water-in-oil emulsion and removal of water from the water-in-oil polymer emulsion by azeotropic distillation, by a method in which superheated vapor of an inert organic solvent which is immiscible with water is passed into the water-in-oil polymer emulsion. Using the process, it is also possible to concentrate emulsions which tend to coagulate or water-in-oil emulsions which are sensitive to shearing, without the polymers losing their effectiveness.

Abstract: A nonwoven fabric repellent to body fluids and having reduced odor on sterilization by irradiation or steam is made by bonding nonwoven fibers with a saturated latex, forming said nonwoven fabric, and sterilizing said fabric, said latex is prepared by polymerizing, in the presence of 0.1 to 2 weight parts of a free radical initiator and a sufficient amount of a nonionic or anionic emulsifier, 65 to 85 weight parts of a soft hydrophobic monomer having Tg of -80.degree. C. to -20.degree. C., 10 to 30 weight parts of a hard hydrophobic acrylate monomer having Tg of +40.degree. C. to +120.degree. C., 0.1 to 5 weight parts of an unsaturated carboxylic acid containing 3 to 6 carbon atoms, and 0.1 to 5 weight parts of N-alkylol acrylamide or methacrylamide containing 1 to 10 carbon atoms, said latex has post-added and admixed therein 0.01 to 5 weight parts of an odor inhibition agent selected from amine-type antioxidants and hindered phenols that function to reduce odor of said fabric on sterilization thereof.

Abstract: Disclosed is a process for preparing water absorbing, cross-linked acrylate resins by aqueous polymerization of (A) acrylic acid neutralized 70 to 100 mole percent for example with ammonia, and/or caustic alkali and/or an amine; with (B) acrylamide in a mole ratio of 70 to 100 mole percent (A) to 30:0 mole percent (B); and (C) a water miscible or a water soluble polyvinyl monomer in an amount of 0.001 to 0.3 weight percent based on the total weight of (A) and (B). In accordance with one embodiment of the invention, the concentration of monomers (A) plus (B) should be at least 70 percent by weight of the polymerization mixture of (A) plus (B) plus (C) to achieve a substantially dry polymer (less than 15 weight percent water) when polymerization is completed by utilizing the exothermic heat of polymerization and cross-linking to drive off water without the need for additional heating to obtain a dry solid.

Abstract: A high-solid self-adhesive having a solid content of 65 to 75% by weight and composed of an emulsion obtained by emulsion-copolymerizing a vinyl monomer mixture containing acrylate esters as the main ingredient and further at least one hydrophilic monomer of formula (A), (B) or (C). ##STR1## wherein R.sub.1 is H or COOH, R.sub.2 is H or CH.sub.3 and R.sub.3 is H or CH.sub.2 OH.A process for the production of the high-solid self-adhesive comprising successively adding a pre-emulsion obtained by previously mixing said vinyl monomer mixture, a surfactant mixture of a nonionic surfactant and an anionic surfactant and water, to the reaction system to carry out an emulsion copolymerization in the presence of a catalyst.

Abstract: An aqueous dispersion of a copolymer comprising:(A) from 20 to 90 percent by weight of an unsaturated carboxylic acid of the formula ##STR1## where R.sub.1, R.sub.2, R.sub.3 are hydrogen, alkyl, or --(CH.sub.2).sub.n COOM and M is a proton or an alkali metal or alkaline earth metal or an ammonium cation, and(B) from 10 to 80 percent of at least one other comonomer different from and copolymerizable with A; methods of making a ready-to-use foundry molding sand by mixing such a dispersion with sand; and such ready-to-use foundry molding sands.

Abstract: Compounds of the formula:CH.sub.2 .dbd.C(R)--COO--(CH.sub.2 --CH(CH.sub.3)--O).sub.x --(CH.sub.2 --CH.sub.2 --O).sub.y --OC--A--COOHor a salt thereof, whereinR is H or CH.sub.3,x is an integer from 2 to 20.y is an integer from 0 to 5,A is an alkylene, alkenylene, or phenylene radical such that A(COOH).sub.2 is a dibasic acid capable of forming an anhydride (A(CO).sub.2 O, are described. These are polymerizable compounds which have also surfactant properties. The compounds may be used to replace non-polymerizible surfactants in emulsion polymerization reactions, and preferably in those reactions which result in adhesive polymers which are suitable for surgical and medical use. Methods for preparing the compounds and pressure sensitive adhesives formed by copolymerization of the compounds with other acrylate monomers are also described.

Abstract: Aqueous compositions suitable for forming on a substrate a temporary protective coating, which can subsequently be removed by treatment with an aqueous alkaline solution, comprise a sterically stabilized dispersion in an aqueous medium of particles of size range 0.1-10 .mu.m of a polymer derived from monomers including at least one acrylic monomer and from 5% to 40%, based on the total weight of monomers, of an ethylenically unsaturated monocarboxylic acid, or an equivalent proportion of an unsaturated polycarboxylic acid.

Abstract: A thickening agent that is particularly suitable for alkaline print pastes is a water insoluble, water swellable or water swollen polymer made by reverse phase polymerization of a blend of water soluble, copolymerizable monomers in which the monomers comprise at least one ethylenically unsaturated acid having free acid groups, at least one ethylenically unsaturated acid having salt groups selected from ammonium, amine and alkali metal and at least one ethylenically unsaturated cross-linking agent, the molar proportions of the said free acid groups to the said salt groups during the polymerization being from 80:20 to 10:90.

Abstract: A process for copolymerizing acrylonitrile (AN) with an amount of a monomer of a specific structure in an organic solvent which can dissolve AN but cannot dissolve polyacrylonitrile (PAN). The polymer dispersion in the solvent is stable upon storage. The dispersed particles of the polymer are uniform and fine, and are sufficiently prevented from agglomeration and agglutination.

Abstract: Improved coating compositions comprise a coreactive polymeric mixture comprising a reactive emulsion polymer produced by copolymerizing ethylenic monomers in the presence of glycoluril dispersed in water to provide an in-situ blend of reactive polymer and glycoluril. Upon heat curing, the glycoluril cross-links with the reactive in-situ formed emulsion polymer.

Abstract: An aqueous dispersion of vinylidene chloride resin which, when coated onto a synthetic resinous film substrate, has the combined properties of: (1) good adhesion to the substrate; (2) good adhesion of a printing ink to the coating; (3) satisfactory barrier to gases (especially oxygen) and water vapor; and (4) a high resistance to boiling water treatment. The vinylidene chloride resin must also have polymerized therein methyl methacrylate, methacrylonitrile and methacrylic acid. A total amount of methacrylic acid must be between 1.times.10.sup.-4 and 3.times.10.sup.-4 moles of methacrylic acid per gram of polymer solids. A portion of the total amount of methacrylic acid exists in a form titratable with a 1/20 Normal aqueous solution of sodium hydroxide. The portion must be the less of (a) about 1.3.times.10.sup.-4 moles per gram of polymer solids or (b) about 60 percent of the total amount.

Abstract: Disclosed is a process for preparing water absorbing, cross-linked acrylate resins by aqueous polymerization of (A) acrylic acid neutralized 70 to 100 mole percent for example with ammonia, and/or caustic alkali and/or an amine; with (B) acrylamide in a mole ratio of 70 to 100 mole percent (A) to 30:0 mole percent (B); and (C) a water miscible or a water soluble polyvinyl monomer in an amount of 0.001 to 0.3 weight percent based on the total weight of (A) and (B). In accordance with one embodiment of the invention, the concentration of monomers (A) plus (B) should be at least 70 percent by weight of the polymerization mixture of (A) plus (B) plus (C) to achieve a substantially dry polymer (less than 15 weight percent water) when polymerization is completed by utilizing the exothermic heat of polymerization and cross-linking to drive off water without the need for additional heating to obtain a dry solid.

Abstract: A stable water-in-oil emulsion of a hydrophobe associative copolymer of a water-soluble monomer such as acrylamide and a hydrophobic monomer such as dodecyl methacrylate is formed by subjecting a water-in-oil emulsion of the corresponding monomers to copolymerization conditions in the presence of an oil-soluble initiator such as cumene hydroperoxide. Such copolymers associate in aqueous media containing salts such as sodium chloride to increase the viscosity of such media.

Abstract: A nonwoven fabric repellent to body fluids and having reduced odor on sterilization by irradiation or steam is made by bonding nonwoven fibers with a latex, forming said nonwoven fabric, and sterilizing said fabric, said latex is prepared by polymerizing, in the presence of 0.1 to 2 weight parts of a free radical initiator and a sufficient amount of a nonionic or anionic emulsifier, 65 to 85 weight parts of a soft hydrophobic monomer having Tg of -80.degree. C. to -20.degree. C., 10 to 30 weight parts of a hard hydrophobic monomer having Tg of +40.degree. C. to +120.degree. C., 0.1 to 5 weight parts of an unsaturated carboxylic acid containing 3 to 6 carbon atoms, and 0.1 to 5 weight parts of N-alkylol acrylamide or methacrylamide containing 1 to 10 carbon atoms, said latex has post-added and admixed therein 0.01 to 5 weight parts of an odor inhibition agent selected from amine-type antioxidants and hindered phenols that function to reduce odor of said fabric on sterilization thereof.

Abstract: What are disclosed are aqueous dispersions of an acrylic resin which is suitable for the reinforcement of fibrous articles and is free of formaldehyde and acrylonitrile, said resin comprising (a) from 70 to 96.95 weight percent of alkyl esters of acrylic acid and/or methacrylic acid, or mixtures of such esters with styrene; (b) from 2 to 30 weight percent of an hydroxyalkyl ester of an unsaturated carboxylic acid; (c) from 1 to 10 weight percent of acrylamide or of methacrylamide; (d) from 0.05 to 3 weight percent of a crosslinking comonomer having at least two polymerizable double bonds; (e) up to 5 weight percent of an unsaturated carboxylic acid; and (f) up to 20 weight percent of one or more further monomers, as well as fibrous articles reinforced with such a resin dispersion and showing reduced loss of resin binder on dry cleaning and reduced absorption of plasticizers, and methods of making such articles.

Abstract: Stable concentrated water-in-oil emulsions of water-soluble polymers such as polyacrylamide are provided by concentrating a water-in-oil preconcentrate emulsion of the water-soluble polymer containing an inverting surfactant in an amount sufficient to reduce the bulk viscosity of the preconcentrate emulsion.

Abstract: This invention relates to a process for sizing textile yarns by treatment with copolymers, and/or multipolymers, of acrylamide, and to the products thereby obtained. Said composition comprises an aqueous solution of a segmented copolymer of acrylamide and at least one vinyl or vinylidene polymerizable monomer, the amount of the monomer being at a concentration from about 1% to about 40%, based on the weight of acrylamide in the composition.

Abstract: An aqueous emulsion comprising a polymeric resin prepared by polymerizing (a) at least one amino acid of either one of the formula: ##STR1## and the formula: ##STR2## with (b) at least one other polymerizable monomer in an aqueous medium, the component (a) and at least a portion of the component (b) being introduced separately into the reaction system.