There is provided an oligomeric polyol composition having (a) an oligomeric network containing residues of at least one polyhydroxylated aromatic compound and residues of at least one polyol having at least three hydroxyl groups; and (b) a plurality of peripheral groups having one or more pendant hydroxyl groups bound to the oligomeric network by a plurality of linking units. The residues of the polyol may optionally contain one or more oxygen ether groups, one or more amino ether groups, or both one or more oxygen ether groups and one or more amino ether groups. Reaction of the oligomeric polyols with isocyanate monomers affords a new class of polyurethanes having superior heat and water resistance. The new polyurethanes exhibit lower peak exotherms, typically less than 250? F. during in-mold polymerization. Articles prepared from polyurethanes incorporating such oligomeric polyol compositions exhibit flexural strengths and moduli in excess of 10,000 psi and 400,000 psi respectively, and outstanding green strength.

A sticker adjuvant that may be used in agrochemical compositions is disclosed. The sticker adjuvant is a polyether amide or a polyether imide formed by the reaction of a polyether polyamine with a polyfunctional monomer. The polyfunctional monomer may be a polyacid, a di-functional acyl halide, an acid anhydride, a poly(acid anhydride) and a mixture thereof.

Polyurethane foam flakes for use as additive to soil and/or other natural plant growth media for improving the water retention and/or reduction of the methane emission.

An encapsulated particle comprises a core particle, a transferrable-pesticide disposed about the core particle, and a polyurethane layer disposed about the transferrable-pesticide. The core particle comprises a fertilizer, such as urea. The transferrable-pesticide can comprise a dinitroaniline, such as pendimethalin. The polyurethane layer is generally formed from a reaction mixture having a maximum temperature of no greater than about 30 C. The polyurethane layer inhibits the transferrable-pesticide from transferring to a surface different from the core particle when the encapsulated particle physically contacts the surface. A method of forming the encapsulated particle comprises the steps of encapsulating the core particle with the transferrable-pesticide to form an intermediate-particle, combining an isocyanate and a polyol to form the reaction mixture, and encapsulating the intermediate-particle with the reaction mixture to form the polyurethane layer of the encapsulated particle. The polyurethane layer comprises the reaction product of the isocyanate and polyol.

A sticker adjuvant that may be used in agrochemical compositions is disclosed. The sticker adjuvant is a polyether amide or a polyether imide formed by the reaction of a polyether polyamine with a polyfunctional monomer. The polyfunctional monomer may be a polyacid, a di-functional acyl halide, an acid anhydride, a poly(acid anhydride) and a mixture thereof.

A sticker adjuvant that may be used in agrochemical compositions is disclosed. The sticker adjuvant is a polyether amide or a polyether imide formed by the reaction of a polyether polyamine with a polyfunctional monomer. The polyfunctional monomer may be a polyacid, a di-functional acyl halide, an acid anhydride, a poly(acid anhydride) and a mixture thereof.

A process for preparing a polymeric membrane for soil materials used in crop production comprising providing an aqueous dispersion of polyurethane and spraying the aqueous dispersion onto soil materials to be used in crop production to form a polymeric membrane.

The present invention provides a sustained release composition having hyperbranched polymers that are polyesters that are biobased and biodegradable, and that have at least one active ingredient, which composition delivers the active ingredient over time. These active ingredients can be a wide variety of compounds so long as they can covalently bind to the polymer or be encapsulated in the polymer in a manner that is released at the point of delivery, usually by acid hydrolysis or enzymatic bond scission.

The invention relates to antiviral agents and specifically to synthetic biologically-active derivatives, and can be used in the pharmaceutical industry, in medicine, in plant husbandry and in biotechnology. The antiviral agent is based on poly-N1-hydrazino(imino)methyl-1,6-hexanediamine-poly-N1-amino(imino)methyl-1,6-hexane diamine of general formula (1),

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where: HX is an acid, n=3-20, and m=4-20, and which is active against viruses of humans, animals, plants, bacteria and fungi, said viruses being non-enveloped and enveloped and containing RNA or DNA. The antiviral agent exhibits a broad range of effectiveness, and is active against viruses both in intracellular and extracellular locations.

Epoxy soybean oil polyol is firstly prepared by open-ring etherification of an epoxy soybean oil and a small molecular alcohol with an organic acid catalyst, and then the epoxy soybean oil polyol is further esterified with an organic acid under an esterification catalyst to prepare a polyester polyol with a high biomass ratio. The polyester polyol includes a compound having an -type structure and a compound having an -type structure. A method for preparing the polyester polyol is provided, as well as a polyurethane controlled-release fertilizer envelope and a polyurethane controlled-release fertilizer prepared by cross-linking the polyester polyol and MDI on surfaces of the fertilizer. The epoxy soybean oil and the small molecular alcohol can be derived from biomass, so a biomass content is high, the synthesized product is environmentally safe, and product performance is excellent.