Abstract: Compositions and methods related to new wet strength resins are provided. By using functionally-symmetrical cross-linkers and mono-functional modifiers, and separating the steps of reacting a prepolymer with the cross-linkers from the reaction of intermediate cross-linked prepolymer with epichlorohydrin, new wet strength resin products are provided having improved properties.

Abstract: Strengthening resins and methods for making and using same. The strengthening resin can include a polyamine partially cross-linked with a bridging moiety and having azetidinium ions. The bridging moiety can be derived from a functionally symmetric cross-linker. The functionally symmetric cross-linker can include a diisocyanate, a 1,3-dialkyldiazetidine-2,4-dione, a dianhydride, a diacyl halide, a dienone, a dialkyl halide, or any mixture thereof.

Abstract: Compositions and methods related to new wet strength resins are provided. By using functionally-symmetrical cross-linkers and mono-functional modifiers, and separating the steps of reacting a prepolymer with the cross-linkers from the reaction of intermediate cross-linked prepolymer with epichlorohydrin, new wet strength resin products are provided having improved properties.

Abstract: Compositions and methods related to new wet strength resins are provided. By using functionally-symmetrical cross-linkers and mono-functional modifiers, and separating the steps of reacting a prepolymer with the cross-linkers from the reaction of intermediate cross-linked prepolymer with epichlorohydrin, new wet strength resin products are provided having improved properties.

Abstract: Compositions and methods related to new wet strength resins are provided. By using functionally-symmetrical cross-linkers and mono-functional modifiers, and separating the steps of reacting a prepolymer with the cross-linkers from the reaction of intermediate cross-linked prepolymer with epichlorohydrin, new wet strength resin products are provided having improved properties.

Abstract: Strengthening resins and methods for making and using same. The strengthening resin can include a polyamine partially cross-linked with a bridging moiety and having azetidinium ions. The bridging moiety can be derived from a functionally symmetric cross-linker. The functionally symmetric cross-linker can include a diisocyanate, a 1,3-dialkyldiazetidine-2,4-dione, a dianhydride, a diacyl halide, a dienone, a dialkyl halide, or any mixture thereof.

Abstract: Compositions and methods related to new wet strength resins are provided. By using functionally-symmetrical cross-linkers and mono-functional modifiers, and separating the steps of reacting a prepolymer with the cross-linkers from the reaction of intermediate cross-linked prepolymer with epichlorohydrin, new wet strength resin products are provided having improved properties.

Abstract: Compositions and methods related to new wet strength resins are provided. By using functionally-symmetrical cross-linkers and mono-functional modifiers, and separating the steps of reacting a prepolymer with the cross-linkers from the reaction of intermediate cross-linked prepolymer with epichlorohydrin, new wet strength resin products are provided having improved properties.

Abstract: A creping adhesive comprising a PAE composition comprising a reactive, light crosslinked polyamidoamine-epichlorohydrin polymer (PAE-type polymer) optionally in combination with a reactive modifier and the corresponding method for of creping cellulosic fiber webs with the adhesive.

Abstract: A creping adhesive comprising a PAE composition comprising a reactive, light crosslinked polyamidoamine-epichlorohydrin polymer (PAE-type polymer) optionally in combination with a reactive modifier and the corresponding method for of creping cellulosic fiber webs with the adhesive.

Abstract: Cationic thermosetting resins and especially resins having azetidinium functional groups, such as polyamidoamine-epichlorohydrin resins, are stabilized against premature gelation by the addition of (1) a low molecular weight, non-aldehyde, non-ionic, water soluble organic stabilizing compound (preferably one that is reactive with the cationic moiety), preferably in combination with (2) a water soluble, inorganic complexing metal salt.

Abstract: An improved creping adhesive is prepared by first reacting a dibasic carboxylic acid, or its ester, half-ester, or anhydride derivative, with a polyalkylene polyamine, preferably in aqueous solution, under conditions suitable to produce a water soluble polyamide. The water-soluble polyamide is then reacted with an epihalohydrin until substantially fully cross-linked, and stabilized by acidification with phosphoric acid at the end of the polymerization reaction to form a water-soluble poly(aminoamide)-epihalohydrin creping adhesive that is re-wetable and facilitates water spray removal of buildup so as to lengthen the life of the creping blades, with attendant significant decrease in downtime and maintenance.

Abstract: An improved creping adhesive is prepared by first reacting a dibasic carboxylic acid, or its ester, half-ester, or anhydride derivative, with a polyalkylene polyamine, preferably in aqueous solution, under conditions suitable to produce a water soluble polyamide. The water-soluble polyamide is then reacted with an epihalohydrin until substantially fully cross-linked, and stabilized by acidification with phosphoric acid at the end of the polymerization reaction to form a water-soluble poly(aminoamide)-epihalohydrin creping adhesive that is re-wetable and facilitates water spray removal of buildup so as to lengthen the life of the creping blades, with attendant significant decrease in downtime and maintenance.

Abstract: Cationic thermosetting resins and especially resins having azetidinium functional groups, such as polyamidoamine-epichlorohydrin resins, are stabilized against premature gelation by the addition of (1) a low molecular weight, non-aldehyde, non-ionic, water soluble organic stabilizing compound (preferably one that is reactive with the cationic moiety), preferably in combination with (2) a water soluble, inorganic complexing metal salt.