Abstract: A method for treating a seedling by dipping the roots of the seedling into a composition containing a slow release, particulate urea-formaldehyde polymer, which is useful as a fertilizer for enhancing the extended delivery of nitrogen needed for plant development and growth and to the composition useful as the root dip, or as a soil drench.

Abstract: The present invention provides a process and system for the manufacture of wood-based composites that implement feedback adjusted in-line addition of a curing accelerator/catalyst to a thermosetting resin adhesive based on at least one of: present moisture content of the wood substrate being bonded and the temperature of the wood substrate being bonded.

Abstract: An aqueous binder composition containing a urea-formaldehyde resin modified with an additive comprising (1) styrene acrylic acid or styrene acrylate, (2) an adduct of styrene, maleic anhydride, and an acrylic acid or acrylate or (3) a physical mixture of a styrene acrylic acid or styrene-acrylate copolymer and a styrene-maleic anhydride copolymer. The resulting binder is used in the preparation of fiber mats.

Abstract: A controlled release urea-formaldehyde liquid resin having a nitrogen level of at least 28 wt % and its method of manufacture. The controlled release urea-formaldehyde resin is useful as a fertilizer.

Abstract: A method of forming a composite panel includes the steps of supplying a material to a forming station, supplying a dry additive to the material at the forming station, producing a mat comprising the material and the additive at the forming station, and applying heat and pressure to the mat to produce a composite panel.

Abstract: A composition of matter for surface sizing of paper and other cellulosic products. In particular, the composition is a styrene/acrylic acid ester copolymer latex made by emulsion copolymerization without surfactants.

Abstract: A core board forming apparatus includes a feeding apparatus for sensing and dispensing tubular cores at predetermined dispensing positions. A compression apparatus receives and detects the tubular cores and flattens and secure at least two flattened tubular cores together. A controller unit controls the operation of the feeding apparatus and the compression apparatus. The presence of first tubular core is detected after the step of dispensing. In response to detecting the first tubular core is substantially flattened. A core board product includes at least two substantially flattened paper cores fastened together by integral fastening members having two fastening portions extending directly through the flattened cores.

Abstract: A core board forming apparatus includes a feeding apparatus for sensing and dispensing tubular cores at predetermined dispensing positions. A compression apparatus receives and detects the tubular cores and flattens and secure at least two flattened tubular cores together. A controller unit controls the operation of the feeding apparatus and the compression apparatus. The presence of first tubular core is detected after the step of dispensing. In response to detecting the first tubular core is substantially flattened. A core board product includes at least two substantially flattened paper cores fastened together by integral fastening members having two fastening portions extending directly through the flattened cores.

Abstract: A process and a catalyst reaction zone comprising one or more fixed bed reactors for oxidizing methanol in a reactant gas feed stream to formaldehyde. According to one embodiment, the process comprises introducing the reactant gas feed stream into an upstream region containing a vanadia-titania first catalyst (substantially free of a volatile MoO3 species) under oxidizing conditions to form a partially oxidized reactant gas feed stream which is then introduced under oxidizing conditions into a downstream region containing a metal molybdate second catalyst to further oxidize any residual methanol contained therein. According to another embodiment, a fixed bed reactor comprising an upstream region and a downstream region containing the aforementioned vanadia-titania and metal molybdate catalysts, respectively, is utilized to implement the inventive process to yield a product gas stream containing formaldehyde preferably at a conversion of 85% or more and a selectivity of 90% or more.

Abstract: The present invention provides a system and method for determining adhesive resin distribution on wood flakes to be formed into a wood-based composite. Where a predetermined amount of adhesive resin has been sprayed onto a selected amount of wood flakes being tumbled in a blender, the method includes the steps of: removing a sample of sprayed wood flakes at the output of the blender and placing the sprayed wood flakes on a scanning bed; scanning the sprayed wood flakes with a scanner having at least 1200 dpi resolution with 1800 dpi interpolation to provide image data; using image analysis software with resin analysis macros to filter the image data to provide a high contrast image that shows each adhesive resin spot differentiated from the wood flake on which the adhesive resin spot is situated; and measuring and analyzing the high contrast image to provide an output showing at least a percent coverage of the wood flake by the adhesive resin.

Abstract: The present invention provides a process and system for the manufacture of wood-based composites that implement feedback adjusted in-line addition of a curing accelerator/catalyst to a thermosetting resin adhesive based on at least one of: present moisture content of the wood substrate being bonded and the temperature of the wood substrate being bonded.

Abstract: A core board forming apparatus includes a feeding apparatus for sensing and dispensing tubular cores at predetermined dispensing positions. A compression apparatus receives and detects the tubular cores and flattens and secure at least two flattened tubular cores together. A controller unit controls the operation of the feeding apparatus and the compression apparatus. The presence of first tubular core is detected after the step of dispensing. In response to detecting the first tubular core is substantially flattened. A core board product includes at least two substantially flattened paper cores fastened together by integral fastening members having two fastening portions extending directly through the flattened cores.

Abstract: A controlled release liquid urea formaldehyde fertilizer which has a nitrogen level at least 31% and its method of manufacture.

Abstract: Phenolic resin polyols are disclosed. The polyols, which contain aliphatic or mixed phenolic and aliphatic hydroxyl groups, are the reaction products of aralkylated phenols or phenol aralkylation polymers with an oxyalkylating agent selected from alkylene oxides and alkylene carbonates. The phenolic resin polyols are versatile intermediates for many polymer systems, including urethanes, epoxies, alkyds, acrylates, and polyesters.

Abstract: Phenol formaldehyde resins that have low free formaldehyde when produced, that maintain their low free formaldehyde levels during storage, and that demonstrate low levels of formaldehyde emissions during processing, curing, and thereafter.

Abstract: Infinitely water soluble, storage stable, low molecular weight, amine-modified resins/binders (e.g., phenol-formaldehyde resole resins and binders made therefrom) are used to produce low odor fiberglass products, such as fiberglass insulation for automobile headliners and room dividers. The cured, bonded fiberglass products have low TMA (trimethylamine) emission because the free formaldehyde in the resin has been scavenged with melamine, which resists thermal decomposition, and because the binder contains a relatively low urea content, which is a TMA contributor. The resole resin production process includes adding two different formaldehyde scavengers (e.g., melamine and urea) to produce a modified phenol-formaldehyde resole resin. This resole resin is produced into a binder by mixing with water, optionally in the presence of a latent acid catalyst (e.g., an ammonium salt of a strong acid).

Abstract: A pultrusion resin composition comprising about 75 wt % to about 85 wt % of a phenolic resin, about 9 wt % to about 20 wt % of the reaction product of a polyhydroxy compound and an epoxy-functional polysiloxane, about 6 wt % to about 15 wt %, of a phenolic epoxy, and about 0.2 wt % to about 1 wt % of a catalyst, based on total weight of the composition. Pultruded products are formed by drawing fibrous reinforcement through a bath of the pultrusion resin composition.

Abstract: A melamine-urea-formaldehyde resin modified with a cyclic urea prepolymer and sodium metabisulfite. Products prepared with the binder include wood composites such as particleboard and medium density fiberboard.

Abstract: A method for making a consolidated wood product comprising coating wood components with a B-stageable, phenol-formaldehyde resole resin; heating the coated wood components to about 80 to 140° C. for a time sufficient to advance the resin to a B-stage; forming a mat or stack of the wood components coated with the B-stage resin; exposing the mat or stack of coated wood components to a saturated or superheated steam atmosphere in a hot press; and compressing the layup to form the consolidated wood product. The phenol-formaldehyde resole resin used in the method has a number average molecular weight of between about 200 and 600, has a F:P mole ratio of about 1.3:1 to 2.0:1, and has been modified with 0 to about 5.5 wt % of caustic based on resin solids.

Abstract: Phenol aralkyistion polymers can be prepared by reaction among a phenolic monomer, at least one styrenic monomer and an aryl diolefin. A phenolic monomer can be initially aralkylated in the presence of an acid catalyst with a first portion of at least one styrenic monomer to obtain an aralkylated phenol. The aralkylated phenol thereafter can be reacted with an aryl diolefin to obtain a phenol aralkylation polymer. Optionally, (though preferably) the phenol aralkylation polymer is further aralkylated with a second portion of at least one styrenic monomer. By employing specific catalyst concentrations, reactant concentrations, reaction temperatures, and reaction times, the formation of mono-functional and non-functional by-products is substantially reduced.