The present invention relates to a flame-retardant composition, a method for preparing the same and an article therefrom. The composition may include at least one thermoplastic polyurethane, at least one primary flame retardant, and at least one metal carbonate particle.

Provided is a photo-curable composition capable of creating a three-dimensional object excellent in both of: stiffness and strength; and toughness. Specifically, provided is a photo-curable composition including: a blocked isocyanate represented by the general formula (1); a chain extender; and a photo-radical generator: ##STR00001##
wherein, in the general formula (1), A.sub.1 to A.sub.4 each independently represent a structure represented by the following general formula (2), and B represents a structure represented by the following general formula (3) ##STR00002##

Provided is an elastomer which is suitable for application in actuators or sensors, and which exhibits an appropriately low initial elastic modulus in a low deformation region.

An elastomer composition containing the following components (A) to (D):

component (A): a polyrotaxane;

component (B): a crosslinking agent containing a second linear molecule having a molecular weight of 1,200 to 7,000, and a functional group disposed at both ends of the second linear molecule;

component (C): a double-reactive component having a reactive group at both ends; and

component (D): a single-reactive component having a reactive group at only one end, wherein at least a portion of the functional group in the component (B) is directly or indirectly bonded to the cyclic molecule in the component (A), and the elastomer composition exhibits an initial elastic modulus of 0.6 to 2 MPa.

A foamable polyurethane resin composition includes a polyisocyanate material, a polyol material, water, and a catalyst. The polyisocyanate material contains 1,4-H.sub.6XDI; the polyol material contains crystalline PTMEG and noncrystalline PTMEG and/or PPG; the total amount of the crystalline PTMEG, the noncrystalline PTMEG, and PPG is 90% by mass or more with respect to the total amount of the polyol material; and a ratio of the crystalline PTMEG is 60% by mass or more and 90% by mass or less with respect to the total amount of the crystalline PTMEG, the noncrystalline PTMEG, and PPG.

In an active energy ray-curable polyurethane resin including a reaction product of a resin material containing an isocyanate group-terminated prepolymer and a hydroxy group-containing unsaturated compound, the isocyanate group-terminated prepolymer includes a reaction product of a prepolymer material containing a polyisocyanate component containing a xylylene diisocyanate and/or a hydrogenated xylylene diisocyanate, and a polyol component containing a polyoxyalkylene polyol having a number average molecular weight of 6000 or more and 12000 or less, and the viscosity at 25° C. of the active energy ray-curable polyurethane resin is 20000 mPa.Math.s or more and 40000 mPa.Math.s or less.

The present invention relates to novel solvent-free, blocked isocyanate prepolymers curing at room temperature, and to a method for the production thereof. Furthermore, the present invention relates to the use of said blocked isocyanate prepolymers for producing solvent-free reactive systems and to their use for producing adhesives, sealing compounds, casting compounds, molded parts or coatings, which are curing at room temperature.

The invention relates to an aqueous dispersion containing a mixture of linear fluorinated and non-fluorinated polyurethane acrylates, obtainable by: a) reacting polyisocyanate A′, multi-unsaturated OH-functional compound B′, acid-functional polyol C′ under urethane formation reaction conditions in the presence of intermediate X, wherein intermediate X is an OH-functional (per)fluoropolyether (PFPE) derivative, and b) adding neutralizer D to the reaction product of step a) and dispersing it in water. The dispersion can be used in preparation of a coating with easy-clean, anti-stain and anti-scratch properties, which can advantageously be used for coating substrates in consumer electronics or automotive applications.

Disclosed are compositions that may be useful for forming synthetic membranes, methods of forming membranes therefrom, and membranes. In an embodiment, a membrane comprises a free hydrophilic polymer comprising a polyoxazoline, and a polyurethane, the polyurethane comprising a backbone comprising the reaction product of a diisocyanate, a polymeric aliphatic 5 diol, and optionally a chain extender.

An alkoxysilane-functionalized and allophanate-functionalized coating material including a) a binder component of 10-99 wt % of at least one reaction product of I. and II. wherein I includes A) at least one alkoxysilane-containing monourethane A) of the formula 1 R.sub.n(OR.sub.1).sub.3-nSi—R.sup.2—NH—(C═O)—OR.sup.3 wherein R, R.sup.1, R.sup.2 and R.sup.3 represent hydrocarbon radicals having 1-8 carbon atoms, and n represents 0-2, and B) at least one diisocyanate B), and II includes the subsequent reaction of C) with at least one diol and/or polyol C), in a ratio of NCO groups of reaction product I to OH groups of the diol and/or polyol II. C) of 1.0:1.5 to 1.0:0.6; b) 1-90 wt % of at least one further binder component distinct from a) a hydroxyl-containing or amino-containing binder component, c) 0-50 wt % of at least one polyisocyanate having an NCO functionality of at least 2, d) 0-5 wt % of at least one catalyst, wherein components a)-d) add up to 100 wt %.

The present invention relates to alkoxysilane-functionalized allophanates, to methods for production thereof, and to the use thereof. In particular, the alkoxysilane-functionalized allophanate includes the reaction product of A) at least one alkoxysilane group-containing monourethane A) of the formula 1

R.sub.n(OR.sup.1).sub.3-nSi—R.sup.2—NH—(C═O)—OR.sup.3   formula 1,

where R, R.sup.1, R.sup.2 and R.sup.3 are each independently hydrocarbyl radicals having 1-8 carbon atoms, which may be linear, branched or cyclic, or else may be integrated together to form a cyclic system, and n is 0-2, and B) at least one diisocyanate B), in a molar ratio of A) to B) of 3:1 to 1.5:1.