The present invention relates to an isocyanate-reactive component B) comprising: B1) one or more organic polyols selected from the group consisting of polyether polyols, polyester polyols, polyetherester polyols, polymer polyols, polycarbonate polyols and polyethercarbonate polyols; B2) one or more compounds having the structure of Formula (I) wherein R.sup.1 is selected from the group consisting of hydrogen, methyl or ethyl; R.sup.2 is selected from the group consisting of alkylene having 2 to 6 carbon atoms, 2,2-bis(4-phenylene)propane, 1,4-bis(methylene)benzene, 1,3-bis(methylene)benzene, 1,2-bis(methylene)benzene; n is an integer selected from 1 to 6; and B3) at least one radical reaction adjuvant selected from the group consisting of aryl-substituted olefins, a composite material comprising a thermosetting polyurethane-polyacrylate resin matrix made with such isocyanate-reactive component B) and a reinforcement material and a process of preparing the same.

To provide a polyether polyol having a high degree of freedom in the design of a polyurethane foam, and capable of providing a polyol system solution excellent in storage stability. A polyether polyol having a polyoxyalkylene chain consisting of oxyalkylene units, and having a degree of unsaturation of at most 0.020 meq/g, a hydroxy value of from 1 to 80 mgKOH/g, a content of oxyethylene units of from 0 to 50 mass %, and a content of ultra-high molecular weight components which have molecular weights of from 12 to 46 times the number average molecular weight of at most 1,000 mass ppm. The number average molecular weight is a molecular weight as calculated as polystyrene measured by gel permeation chromatography (GPC) method, and the content of ultra-high molecular weight components is a value measured by high performance liquid chromatography (HPLC) method using a charged aerosol detector (CAD).

An embodiment of the present technology is an isocyanate-based adhesive used for a surface-treated crystalline thermoplastic resin base material, the isocyanate-based adhesive having a value represented by (JIS-A hardness)/(strength at break [MPa])×(elongation at break (%))/100 of 2.0 to 70 after being cured by being allowed to stand still under a condition at 23° C. and 50% RH for 3 days, and the crystalline thermoplastic resin base material having a value represented by (δ.sup.d/δ.sup.p+δ.sup.p) of 2.0 to 30.0. δ.sup.p=γ.sup.p−γ.sup.p0 and δ.sup.d=|γ.sup.d−γ.sup.d0|, γ.sup.p0 is a polar term of surface free energy before the surface treatment, γ.sup.p is a polar term of surface free energy after the surface treatment, γ.sup.d0 is a dispersion term of the surface free energy before the surface treatment, and γ.sup.d is a dispersion term of the surface free energy after the surface treatment.

Hygienic trays adapted to effectively restrain items under hygienic conditions are provided by equipping hygienic trays with an antipathogenic, cohesive and adhesive thermoset overlay provided in the form of an adhesive insert or tray coating. The overlay adhesively restrains emplaced items until manually removed from the overlay by the hygienic user while also providing an unexpected superior antipathogenic environment. The hygienic trays are particularly useful from hygienic applications wherein hygienic conditions and a need to stabilize trayed items against displacement are of a dominant concern. The tray may be of a simple platform design with or without a typical bordering rim which may be adapted for hand carriage or mounted onto another supportive structure.

A two-component polyurethane compositions including (i) a polyol component A comprising a tri- or higher functional polyol P1 having an OH equivalent weight of from 60 g/mol to 250 g/mol and a di- or tri-functional polyether or polyester polyol P2 which is different from the polyol P1; and (ii) an isocyanate component B comprising at least one polyisocyanate I. Polyurethane compositions have surprisingly been found to be suitable for 3D printing processing, where they provide printed 3D objects with reduced tackiness even shortly after the printing. In addition, the invention provides processes for the production of three dimension objects form such compositions as well as three dimensional objects prepared accordingly and the use of corresponding compositions in 3D printing processes.

A solvent-based polyurethane retort adhesive system for producing laminates including: (A) at least one isocyanate compound, Component A, comprising: a blend of: (i) at least one aliphatic-based isocyanate and (ii) at least one aromatic-based isocyanate; and (B) at least one isocyanate-reactive component, Component B, comprising: (i) at least one phosphate ester compound and (ii) at least one polyether polyol having an average molecular weight of less than 1,500 g/mol; a process for producing the above adhesive; a multi-layer laminate product including the above adhesive; and a process for producing a laminate product using the above adhesive.

An adhesive composition containing an organic silicon compound represented by formula (1).

##STR00001##

[In the formula, R.sup.1 is an alkyl group or an aryl group, R.sup.2 are an alkyl group or an aryl group. R.sup.3 are an alkyl group, an aryl group, an aralkyl group, an alkenyl group, or an alkoxy group, but at least one is an alkoxy group. R.sup.4 is an alkyl group, an aryl group, an aralkyl group, or an organic group represented by formula (2), n is an integer of 1-3, m is an integer of 1-12.

##STR00002##

(In the formula, R.sup.5 is an alkyl group or an aryl group, R.sup.6 are an alkyl group or an aryl group, p is an integer of 0-12, q is an integer of 1-3. The broken line represents a bond.)]

A moisture-curable composition, including: a) at least one polyurethane polymer P having isocyanate groups; b) at least one blocked polyamine BA having blocked, hydrolytically activatable amino groups; and c) at least one monoamine MA of formula (V),

##STR00001##

where R.sup.a represents a linear, cyclic, or branched alkyl or alkenyl radical or optionally substituted aryl radical with 1 to 12 C atoms and optionally including ether oxygen atoms; R.sup.b and R.sup.c either independently represent a rest R.sup.a or a hydrogen atom, where at least one of R.sup.b and R.sup.c is a hydrogen atom, or R.sup.b and R.sup.c together with the N atom of monoamine MA form an aldimine group that under influence of water hydrolyzes to a aldehyde and an amine R.sup.a—NH.sub.2; wherein polymer P is the reaction product of 2,4- and/or 2,6-toluylene diisocyanate (TDI) and at least one polyol, wherein the polyol has an average functionality of >2.

Polyurethane foams are made by curing a reaction mixture that contains an aromatic polyisocyanate, at least one isocyanate-reactive material having an average functionality of at least 2 and an equivalent weight of at least 200 per isocyanate-reactive group, at least one blowing agent, at least one surfactant and at least one catalyst, and a certain 3-oxopropanamide compound. Foams so produced emit low levels of aldehydes.

Disclosed are a sealer composition and a coating film with improved appearance quality. The sealer composition for a coating film includes a polyol mixture containing a polyester polyol and a polyether polyol in a predetermined ratio, an isocyanate compound including a blocked isocyanate, and a curing catalyst and the coating film prepared from the sealer composition has improved appearance quality as well as improved abrasion resistance.