The present invention relates to a semi-crystalline mixture of polyester polyols which recrystallises upon melting and which can be obtained by polycondensing a reaction mixture comprising one or more dicarboxylic acids selected from saturated aliphatic dicarboxylic acids having an even number of at least 8 methylene groups, and one or more diols selected from aliphatic diols which have at least one ether function. The invention also relates to a polymeric material which is obtained from the chemical modification of the mixture of polyester polyols with organic compounds which contain at least one isocyonate group and/or epoxide group. The mixtures and materials according to the invention are characterised by relatively low melting enthalpies, while the melting temperature can be set in a range of 30 to 60 C., meaning that it is possible to obtain easily fusible formulations containing the mixtures and materials according to the invention. The mixtures and materials according to the invention also provide such formulations with a high elasticity and breaking resistance. The present invention therefore includes the use of the polyester polyols and polymeric materials according to the invention as deforming, fusing, and extrusion means in thermoplastic materials, and the use thereof for producing adhesives and sealants, in particular hot-melt adhesives and reactive adhesives.

A stretchable film includes, in a stacked form: a polyurethane film containing a repeating unit having a fluorine atom; and a polyurethane film containing a repeating unit having a silicon atom. At least one surface of the stretchable film is made of the polyurethane film containing a repeating unit having a fluorine atom. Thus, provided are: a stretchable film having excellent stretchability and strength, with the film surface having excellent water repellency; and a method for forming the stretchable film.

Described herein are processes for producing cold-flexible polyurethane insulation, in which (a) polyisocyanates are mixed with (b) compounds having groups which are reactive to isocyanates, (c) blowing agents, (d) catalysts, (e) plasticizers and optionally (f) further additives to give a reaction mixture and the mixture is applied to a surface and cured to form insulation. Also described herein is a polyurethane insulation obtainable by a process described herein.

The present invention relates to polyester polyols comprising units derived from a) at least one component (A) carrying at least one COOH group or a derivative thereof, wherein component (A) comprises (i) at least one compound carrying two COOH groups or derivatives thereof (A1), and b) at least one component (B) carrying at least one OH group and no COOH group, wherein component (B) comprises (ii) optionally at least one compound or oligomer carrying at least three OH groups and no COOH group (B1), (iii) at least one compound carrying two OH groups (B2) of formula

##STR00001## wherein n and m are independently from each other 0 or 1, and R.sup.1 and R.sup.2 are independently selected from the group consisting of H, CH.sub.3 and CH.sub.2CH.sub.3, and (iv) optionally at least one compound, oligomer or polymer carrying two OH groups and no COOH group, which is different from B2 (B3), and to an organic solvent-based two-component coating composition comprising a) a first component (K1) comprising (i) at least one polyester polyol of the present invention, and (ii) optionally at least one polymer carrying more than one OH group, which is different from the polyester polyol of the present invention, (D), and b) a second component (K2) comprising (i) at least one compound, oligomer or polymer carrying more than one NCO group or blocked NCO group (F), to substrates coated with the coating composition, and to coating layers on a substrate formed from the coating compositions.

A process for producing a multilayer laminated composite film structure including the steps of: (a) applying a solventless polyurethane adhesive composition to at least a first film substrate; wherein the adhesive composition is applied on at least a portion of at least one side surface of the first film substrate to dispose the adhesive composition on at least a portion of the at least one side surface of the first film substrate; (b) contacting the first film substrate of step (a) with at least a second film substrate; wherein the at least one side surface of the first film substrate containing the adhesive composition is in communication with at least one side surface of the second film substrate such that the polyurethane adhesive composition is disposed in between the first and second film substrates; and (c) curing the adhesive composition to bond the first and second substrates together to form a multilayer laminated composite film structure; and a multilayer laminated composite film structure article produced by the above process.

A thermosetting powder coating material includes powder particles containing a thermosetting resin, a thermosetting agent, and a surfactant. The amount of the surfactant is about 0.1 ppm or more and about 8.0 ppm or less on a mass basis.

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.

To provide a catalyst composition which improves storage stability of a polyol blended liquid for producing a polyurethane foam containing a hydrohaloolefin as a blowing agent, and which starts foaming reaction quickly with a small addition amount. Further, to provide a method for producing a polyurethane foam using a polyol blended liquid containing the catalyst composition.

A catalyst composition is used, comprising one or at least two alcohols selected from the group consisting of an alcohol represented by the following formula (1):

R.sup.1OH(1)

wherein R.sup.1 is a C.sub.5-20 unsaturated hydrocarbon group having at least one double bond, a C.sub.6, C.sub.8, C.sub.10 or C.sub.12 linear alkyl group, or a C.sub.12-24 branched alkyl group, and an alcohol represented by the following formula (2):

##STR00001##

wherein m is from 1 to 4, and one or at least two tertiary amine compounds selected from the group consisting of hexamethyltriethylenetetramine, N,N,N-trimethylaminoethylethanolamine, N,N-dimethylaminoethoxyethanol, N,N-dimethyl-N,N-di(2-hydroxypropyl)propylenediamine, N,N,N-trimethyl-N-(2-hydroxyethyl)bis(2-aminoethyl) ether and N,N-dimethylaminoethyl-N-methylaminoethyl-N-methylaminoisopropanol.

The invention concerns an apparatus (1) for the dispersion of an expansion gas even in supercritical conditions, e.g. carbon dioxide, in a reactive resin, of the kind in which a reaction chamber having an input (27) for gas and an input (37) for resin is provided. Advantageously, the chamber is a dispersion and containment chamber made into a casing (2) of predetermined high resistance susceptible to sustain high pressure and is divided into two sections (6,7) by a head (14) of a dispersion and mixing cylinder-piston group (4) in fluid communication between themselves by means of at least one pouring passage (31, 36, 32, 39) provided with a static mixer (38), motor means (3) being provided for piston (34) control of said mixing cylinder-piston group (4). The invention also concerns a process for the formation of a polyurethane foam starting with the dispersion of carbon dioxide, even supercritical, in a reactive resin in which at least one initial dispersion and mixing controlled phase of the two components is provided in a dispersion and containment chamber under pressure divided into two sections (6,7) by a head (14) of a cylinder-piston mixing group (4) in fluid communication between themselves by means of at least one pouring passage (31, 36, 32, 39) provided with a static mixer (38) and in which adduction, dispersion and mixing occurs under high pressure (at least greater than 75 bar).

The object of the present invention is to provide a curable composition for forming a cured product having high tensile strength and high elongation. A polyurethane curable composition of the present invention contains a polyol (A) and a polyisocyanate (B) as an essential component, wherein the composition contains polymer fine particles (C) having a core-shell structure including at least two layers of a core layer and a shell layer, the polymer fine particles (C) are contained in an amount of 1 to 150 parts by mass per 100 parts by mass of a total amount of the polyol (A) and the polyisocyanate (B), the core layer has a glass transition temperature (Tg) of more than 0 C. as calculated by the following numerical formula (1), a cured product formed by the curable composition has an elongation of more than 47% at a maximum tensile stress,

1/Tg=(M.sub.i/Tg.sub.i)(1) wherein M.sub.i represents a weight fraction of a non-crosslinking monomer i constituting the core layer of the polymer fine particles (C), Tg.sub.i represents a glass transition temperature (K) of a homopolymer polymerized with the non-crosslinking monomer i, and i represents an integer of 1 or more.