In a self-repairing polyurethane resin material produced by reaction of pentamethylenediisocyanate with an active hydrogen group-containing compound, the active hydrogen group-containing compound contains a polyol compound having a number average molecular weight of 100 to 2000 and an average functionality of 2 to 3.

A self-repairing polyurethane resin material is produced by reaction of a polyisocyanate compound consisting of aliphatic polyisocyanate and/or araliphatic polyisocyanate with an active hydrogen group-containing compound, used for producing polyurethane resin having self-repairing properties, has an isocyanate group at its molecular terminal, contains an allophanate group and an isocyanate trimer, and the mole ratio of the allophanate group relative to the isocyanate trimer is 0.1 to 20.

A self-repairing polyurethane resin material is produced by reaction of a polyisocyanate compound consisting of aliphatic polyisocyanate and/or araliphatic polyisocyanate with an active hydrogen group-containing compound, used for producing polyurethane resin having self-repairing properties, has an isocyanate group at its molecular terminal, contains an allophanate group and an isocyanate trimer, and the mole ratio of the allophanate group relative to the isocyanate trimer is 0.1 to 20.

The present invention provides a polyaspartic composition comprising a reaction product of a polyamine and a Michael addition receptor reacted in the presence of a catalyst comprising a phenolic compound, with the proviso that the phenolic compound is not a phenol which is substituted with tert-butyl groups in both ortho positions to the oxygen. Suitable phenolic compounds include phenols, phenolic aldehydes, alkylphenols, benzenediols, cashew nut oil, and combinations thereof. Coatings, adhesives, sealants, composites, castings, and films comprising a polyurea composition may be made by reacting a polyisocyanate with the inventive polyaspartic composition. In particular, floor coatings made with the inventive polyaspartic composition have an elongated work time and a short walk-on time compared to current floor coatings.

Polyurethane material for indicating pH at a locus, preferably as indication of presence of microbes, comprising a polyurethane network having immobilised therein one or more hydrophilic copolymers, the or each said copolymer comprising:

hydrophilic monomer; and
indicating monomer, which provides an indication in response to a change in hydrophilic state of said hydrophilic monomer and/or copolymer;
characterised in that the or each copolymer further comprises one or a plurality of ionisable groups or moieties or polymerisable monomers having one or more characteristic pKa values in the range 5 to 10 and which are responsive to pH at the locus in the range pH 5 to pH 10
and in that hydrophilic state of hydrophilic copolymer is dependent on ionisation of said ionisable groups, moieties or monomers; kit and device comprising the material and process for preparation thereof; and use in detecting or sensing microbes or pH.

The present invention relates to a two-component coating composition, to a method for applying the composition and to the use of the composition, and to a product obtained by coating with the coating composition. The two-component coating composition contains an A-component containing a polyaspartic ester and a B-component containing a polyether-modified polyisocyanate, and the composition has a molar ratio of isocyanate groups to amino groups of 0.8:1-4:1. The two-component coating composition provided by the invention has the advantages of a long working time, quick drying, a high hardness and a high bubble-free film thickness.

The invention relates to a hyperbranched polymer comprising:

a) a hyperbranched polycondensate with hydroxyl end groups, amino end groups, or a combination thereof condensed to
b) one or more linking groups connected to
c1) one or more polyethylene glycol monomethyl ethers and
c2) one or more poly(C.sub.2-C.sub.3)alkylene glycol mono-(C.sub.8-C.sub.22)-alkyl ethers,
wherein the weight ratio of components c1):c2) is from 9:1 to 1:9. It further relates to a process for producing the polymer, to a composition comprising the polymer and an active ingredient, and to a method for controlling phytopathogenic fungi or undesired vegetation or insect or acarid infestations or for regulating the growth of plants.

A waterborne alternative polyurethane composition is provided which comprises a reaction product of: an azidated polyol; and a waterborne poly(alkynyl carbamate) prepolymer comprising a reaction product of a polyisocyanate and from 1 wt. % to 20 wt. % of an alkynol-polyether having a formula (I),
R.sub.1—R.sub.2—O—R.sub.3—OH  (I),
wherein, R.sub.1=a monovalent group selected from either HC≡C— or HC≡C—CO—, R.sub.2=a divalent alkylene group from 1 to 8 carbon atoms, and may be straight chain or branched and may contain cyclic moieties, and R.sub.3=a polyethylene glycol with number average molecular weight from 300-1,200 g/mol, wherein the wt. % is based on the weight of the prepolymer, wherein reaction of the azidated polyol and the waterborne poly(alkynyl carbamate) occurs at a temperature of from 20° C. to 200° C. and optionally in the presence of a catalyst. The inclusion of an alkynol-polyether does not materially alter the performance properties and reactivity of the waterborne polyurethane composition relative to a solventborne polyurethane control composition. Inclusion of the alkynol-polyether reduces the need for organic solvents by allowing for the use of water as a carrier. The inventive waterborne alternative polyurethane compositions may find use in or as coatings, adhesives, sealants, films, elastomers, castings, foams, and composites.

In a polyurethane gel 1 including a gel layer 2 and a coat layer 3 covering the gel layer 2, the gel layer 2 is produced by allowing at least aliphatic polyisocyanate having an average functionality of more than 2.0 to react with polyol having an average functionality of 3.0 or less, and the coat layer 3 is produced by allowing at least aliphatic diisocyanate and/or alicyclic diisocyanate to react with bifunctional active hydrogen compound.

A leather finishing composition includes water, a polymeric component, and a non-ionic surfactant component covalently bonded to the polymeric component. Advantageously, the leather finishing composition is substantially free of ionic groups. A method for applying the leather finishing composition to a leather substrate is provided.