A multi-component composition contains a) a polyol component having a1) acrylate polyol and a2) at least one of polyester polyol and polyether polyol, wherein the equivalent ratio of hydroxyl groups of acrylate polyol to hydroxyl groups of the at least one of polyester polyol and polyether polyol is in the range of 0.4 to 3.8, and b) an isocyanate component containing b1) aliphatic polyisocyanate monomer, dimer and/or trimer, and b2) aliphatic polyisocyanate prepolymer, wherein the equivalent ratio of isocyanate groups of aliphatic polyisocyanate monomer, dimer and/or trimer to isocyanate groups of aliphatic polyisocyanate prepolymer is in the range of 0.5 to 2.6. The multi-component composition is suitable for use as a top coat on elastic membranes, in particular roofing membranes, to provide sufficient weathering resistance/protection.

Embodiments of the present disclosure provide for methods of detecting, sensors (e.g., chromogenic sensor), kits, compositions, and the like that related to or use tunable macroporous polymer. In an aspect, tunable macroporous materials as described herein can be used to determine the presence of a certain type(s) and quantity of liquid in a liquid mixture.

The radical curable resin composition contains as essential raw materials a vinyl ester resin (A), an unsaturated monomer (B) with a flash point of 100° C. or higher, a polyisocyanate (C), a polymerization initiator (D), a stabilizer (E), and a polymerization inhibitor (F), the stabilizer being a nitroxy radical, and the polymerization inhibitor being at least one or more compounds represented by General Formula (1) or (2). This radical curable resin composition is excellent in handleability, flexibility, and curability during molding and excellent in storage stability with little change over time in the curability during molding, and can thus be suitably used for molding materials and molded articles obtained therefrom. In General Formulae (1) and (2). R.sup.1 represents a hydrogen atom or a C.sub.1-4 alkyl group, and X.sup.1 and X.sup.2 each independently represent a hydrogen atom, a C.sub.1-4 alkyl group, a hydroxy group, or a methoxy group.

##STR00001##

The present invention provides a resin composition for optical shaping that, with its low viscosity, enables easy stereolithographical fabrication of an object, and that can produce an object having desirable toughness and desirable water resistance, particularly for dental mouthpieces and denture base materials. The present invention relates to a resin composition for optical shaping comprising a urethanized (meth)acrylic compound (A) and a photopolymerization initiator (B), the urethanized (meth)acrylic compound (A) being a (meth)acrylate containing at least one polyol moiety and a urethane bond per molecule, said at least one polyol moiety being selected from the group consisting of a polyester, a polycarbonate, a polyurethane, and a polyether each having a structure derived from a C4 to C18 aliphatic chain diol unit (a) having a branched structure.

Provided is a curable composition including a urethanization reaction product of a branched polyolefin diol; at least one selected from an isocyanurate product, an adduct product, and a biuret product, of an aliphatic diisocyanate having 6 to 10 total carbon atoms; and a hydroxy saturated C.sub.1 to C.sub.4 alkyl (meth)acrylate. Also provided are a method for producing the curable composition, and a specific curable compound included in the curable composition.

Embodiments of the present disclosure provide for methods of detecting, sensors (e.g., chromogenic sensor), kits, compositions, and the like that related to or use tunable macroporous polymer. In an aspect, tunable macroporous materials as described herein can be used to determine the presence of a certain type(s) and quantity of liquid in a liquid mixture.

Disclosed and claimed herein are radiation curable compositions for coating an optical fiber containing an oligomer, a diluent, a photoinitiator, and optionally, additives. The oligomer includes a reactive urethane oligomer having at least three arms, each arm having a most distal termination point and bound together at a single junction point, wherein at least one arm comprises the reaction product of a polyol, a polyisocyanate, and an isocyanate-reactive (meth)acrylate. The reactive urethane oligomer possesses specified molecular weight and/or average functionality values, and it may possess specified chain length values between the oligomer junction point and the distal termination point along one or more arm(s). Also disclosed are methods of coating an optical fiber incorporating the compositions described herein, along with the coated optical fibers and cables produced therefrom.

To provide a curable composition capable of: forming a coating film having adhesion to a substrate surface; hardness; scratch resistance; and chemical resistance. The curable composition of the present disclosure contains a polyol compound (A) having an isocyanurate skeleton, an acrylic compound (B) containing a hydroxy group, and a polyisocyanate compound (C) having an isocyanurate skeleton and an isocyanate group besides the isocyanurate skeleton. The polyol compound (A) preferably contains a compound (a) represented by Formula (1) below. R.sup.1 to R.sup.3 in the formula are identical or different and are each a group represented by Formula (1a) below.

##STR00001##

Disclosed are UV curable adhesive compositions and methods to adhere polycarbonate substrates containing UV absorbers to glass for use in ophthalmic lenses.

In various embodiments, a resin composition includes a urethane (meth)acrylate, a reactive diluent, and a urethane (meth)acrylate toughener. The urethane (meth)acrylate toughener includes at least one additional polyol having a number average molecular weight Mn of greater than 1,000 g/mol. Cured articles made from the resin composition have an average fracture toughness (K.sub.Ic) value from 1 MPa*m.sup.1/2 to 3 MPa*m.sup.1/2 when measured in accordance with ASTM D5045. Processes for making the resin composition as well as processes using the resin composition are also provided.