The present invention provides thermosetting aqueous binder compositions of one or more diprimary diamine, e.g. lysine, or poly(primary amine), e.g. polyethylenimine, and one or more reducing sugar in which the number of equivalents of primary amine relative to the number of equivalents of carbonyl groups in the reducing sugar ranges from 0.4:1 to 2:1, the binders being suitable for use on fiber, nonwoven, woven web and finely divided substrates. The binders are at least substantially formaldehyde free, need no polycarboxylic or polycarboxylate component, and yet provide excellent hot wet tensile strength when cured for as little time as a minute or less in use.

The present invention provides thermosetting aqueous binder compositions of one or more diprimary diamine, e.g. lysine, or poly(primary amine), e.g. polyethylenimine, and one or more reducing sugar in which the number of equivalents of primary amine relative to the number of equivalents of carbonyl groups in the reducing sugar ranges from 0.4:1 to 2:1, the binders being suitable for use on fiber, nonwoven, woven web and finely divided substrates. The binders are at least substantially formaldehyde free, need no polycarboxylic or polycarboxylate component, and yet provide excellent hot wet tensile strength when cured for as little time as a minute or less in use.

Polymeric materials are provided that are produced from a blend of hydrophilic and hydrophobic biodegradable polymers. The polymeric materials can form fibers, nonwoven fabrics, films, coatings, etc. A compound can be incorporated in the polymeric materials. The delivery of the compound can be controlled by diffusion of the compound from the polymeric material and during biodegradation of the polymeric material. The release rate is controlled by varying the composition of the polymeric material to control diffusion rates of the compound and/or biodegradation rate of the polymeric material. This technology provides methods for delivering and controlling release rates of pesticides and related compounds in agricultural and non-agricultural settings. When adhered to plants or plant parts, the polymeric materials can provide protection from insect and disease pests. In pellet or capsule form, pesticides can be delivered into seed furrows along with crop seeds, providing similar protection.

Polymeric materials are provided that are produced from a blend of hydrophilic and hydrophobic biodegradable polymers. The polymeric materials can form fibers, nonwoven fabrics, films, coatings, etc. A compound can be incorporated in the polymeric materials. The delivery of the compound can be controlled by diffusion of the compound from the polymeric material and during biodegradation of the polymeric material. The release rate is controlled by varying the composition of the polymeric material to control diffusion rates of the compound and/or biodegradation rate of the polymeric material. This technology provides methods for delivering and controlling release rates of pesticides and related compounds in agricultural and non-agricultural settings. When adhered to plants or plant parts, the polymeric materials can provide protection from insect and disease pests. In pellet or capsule form, pesticides can be delivered into seed furrows along with crop seeds, providing similar protection.

This invention provides flexible adhesive compositions which can be used instead of joint reinforcement tape for securing a joint seam between abutting panels. Methods using the compositions are provided as well.

This invention provides flexible adhesive compositions which can be used instead of joint reinforcement tape for securing a joint seam between abutting panels. Methods using the compositions are provided as well.

Heat-curable adhesive composition: (a) a polyurethane composition (A) of formula: ##STR00001## (i) in which R.sup.1 is a hydrocarbon-based radical; R.sup.2 is a polyester block; R.sup.3 is a linear C1-C3 alkylene radical; R.sup.4 and R.sup.5 are a C1-C4 alkyl; m is an integer such that the molar mass of the said polyurethanes is 900-27 000 Da; p=0, 1 or 2;
obtained by producing polyester diols by polycondensation of: (i) dimerized fatty acids with an acid number of 190-200 mg KOH/g with a C2-C44 diol optionally having O or S; or (ii) dimerized fatty alcohols with a hydroxyl number of 200-220 mg KOH/g with a C4-C44 dicarboxylic acid optionally having O or S; (b) 22-62% of a compatible tackifying resin (B); and (c) 0.01-3% of a crosslinking catalyst (C). Self-adhesive support obtained by preheating the adhesive composition, coating onto a support layer and then curing. Manufacture of self-adhesive labels and/or tapes.

Heat-curable adhesive composition: (a) a polyurethane composition (A) of formula: ##STR00001## (i) in which R.sup.1 is a hydrocarbon-based radical; R.sup.2 is a polyester block; R.sup.3 is a linear C1-C3 alkylene radical; R.sup.4 and R.sup.5 are a C1-C4 alkyl; m is an integer such that the molar mass of the said polyurethanes is 900-27 000 Da; p=0, 1 or 2;
obtained by producing polyester diols by polycondensation of: (i) dimerized fatty acids with an acid number of 190-200 mg KOH/g with a C2-C44 diol optionally having O or S; or (ii) dimerized fatty alcohols with a hydroxyl number of 200-220 mg KOH/g with a C4-C44 dicarboxylic acid optionally having O or S; (b) 22-62% of a compatible tackifying resin (B); and (c) 0.01-3% of a crosslinking catalyst (C). Self-adhesive support obtained by preheating the adhesive composition, coating onto a support layer and then curing. Manufacture of self-adhesive labels and/or tapes.

A particle or particles of cellulosic wood pulp fibers having a top and bottom face and a hexagonal perimeter, and methods of using it.

A particle or particles of cellulosic wood pulp fibers having a top and bottom face and a hexagonal perimeter, and methods of using it.