Abstract:
A paper saturant composition comprising an aqueous emulsion polymer prepared by reacting at least one ethylenically unsaturated monomer and from about 0.1 to about 5 weight percent, based on the total weight of ethylenically unsaturated monomer, of a water-soluble or water-dispersible polymerizable surfactant having a terminal allyl amine moiety. Paper saturated with the emulsion is especially useful in the production of core sheets used to prepare decorative laminates.
Abstract:
A polyurethane hybrid dispersion comprising a carboxylated polyurethane dispersion and a functionalized polymer. The functionalized polymer is the emulsion polymerization product of an ethylenically unsaturated monomer and from 0.1 to 5 pphm of a ureido functional comonomer, wherein the functionalized polymer is prepared in the presence of the carboxylated polyurethane dispersion. he polyurethane hybrid dispersions of the invention exhibit improved wet adhesion to alkyd substrates. Moreover, the polyurethane hybrid dispersions provide the treated substrates with improved solvent resistance.
Abstract:
Freeze-thaw stable latex binders and latex paint compositions are prepared without the use of volatile freeze-thaw additives. The latex binder contains a polymer which is the emulsion polymerization product of a polymerizable polyethylene glycol (PPEG) monomer, wherein the molecular weight of the ethylene oxide moiety in the PPEG monomer is from about 175 to 1,100, at least one acrylic monomer and, optionally, one or more styrenic, ionic or wet adhesion monomers. Methods for preparing the freeze-thaw stable latex compositions are also disclosed.
Abstract:
Wet adhesion properties comparable or superior to all-acrylic latexes for vinyl acetate copolymers and other low cost polymers, such as EVA-vinyl chloride copolymers, is achieved by blending a minor proportion, usually about 5 to 15%, of a small particle size copolymer containing copolymerized wet adhesion monomer which is a cyclic ureido. Very low quantities of the wet adhesion monomer, less than 0.25 wt% of total monomers, only are required to achieve excellent results.
Abstract:
Amphoteric surfactants and copolymerizable amphoteric surfactants for use in latex paints are presented. These surfactants, which contain positively charged nitrogen, are incorporated into the paint formulations at low levels and impart superior wet adhesion and freeze-thaw stability.
Abstract:
Disclosed are aqueous latex-based coating compositions which comprise a blend of an ethylene-vinyl acetate emulsion copolymer component and a selected type of acrylic emulsion copolymer component. The acrylic copolymer component comprises primarily acrylate ester co-monomers or acrylic ester co-monomers and vinyl aromatic, e.g., styrene, co-monomers. The blend of these two emulsion copolymer types also contains a specific type of hydrazine-based, water-soluble cross-linking agent which can eventually react with the acrylic emulsion copolymer component. The acrylic emulsion copolymer is one which contains minor amounts of both 1) carboxy functional co-monomers such as itaconic and/or (meth)acrylic acids, and 2) keto- or aldehyde-containing co-monomers such as diacetone acrylamide. Such latex-based coating compositions can be formulated in the form of water-based paint compositions. These paint products provide paint coatings that exhibit desirable dry and wet adhesion characteristics and desirable resistance to blocking.
Abstract:
A solution with a salt-sensitive polymer binder for use in fibrous webs, where the binder contains a copolymer of carboxylic acid monomer units and ethylenically unsaturated monomer units. The binder solution is prepared by emulsion-polymerizing a copolymer and then neutralizing the copolymer with base to make it water soluble. The binders provide a higher wet strength in concentrated salt solutions than in deionized water, and are particularly suitable for strengthening nonwoven fibrous webs in disposable articles such as wet-wipes, personal care products, diapers, and the like.
Abstract:
A water-based, low-emission latex paint formulation includes a vinyl acetate/ethylene (VAE) latex including a VAE resin with from 80 to 95 weight % vinyl acetate residue and from 5 to 20 weight % ethylene residue, optionally including additional monomers as well as a pigment composition including inorganic solids selected from inorganic pigments, inorganic fillers and mixtures thereof present in an amount such that the paint formulation has a pigment volume concentration (PVC) of from 25% to 85%. The formulations are suitable for eggshell and flat latex paints and exhibit surprising durability.
Abstract:
A solution with a salt-sensitive polymer binder for use in fibrous webs, where the binder contains a copolymer comprising repeat units derived from butyl acrylate, methyl methacrylate and amino functionalized alkyl acrylate or methacrylate or amino functionalized alkyl acrylamide or methacrylamide optionally including monomers such as vinyl acetate and/or vinyl acetate/ethylene. The binder solution is prepared by emulsion-polymerizing a copolymer and then neutralizing the copolymer with acid to make it water soluble. The binders are particularly suitable for strengthening nonwoven fibrous webs in disposable articles such as wet-wipes, personal care products, diapers, and the like and retain their salt-sensitivity with or without divalent metal scavengers.
Abstract:
A salt sensitive polymeric binder for use in fibrous webs, where the binder contains a copolymer incorporating the residue of vinyl acetate, a carboxylic acid, and a vinyl ester of a saturated aliphatic monocarboxylic acid having between 6 and 18 carbon atoms in the carboxylic acid moiety. The copolymer is neutralized at least to the extent that it is water soluble. The binders are particularly suitable for strengthening non-woven fibrous webs in disposable articles such as wet-wipes, personal care products, diapers, and the like.