The present disclosure relates to compositions comprising a copolymer derived from a vinyl aromatic monomer, a (meth)acrylate monomer, an acid monomer, and a copolymerizable surfactant and compositions comprising the same. The (meth)acrylate monomer can be selected from a monomer having a theoretical glass transition temperature (Tg) for its corresponding homopolymer of 0° C. or less or a hydrophobic (meth)acrylate monomer. In some embodiments, the copolymer is further derived from an organosilane. The copolymers can have a theoretical glass transition temperature (Tg) from −60° C. to 80° C. and a number average particle size of 250 nm or less. The compositions can be used to prepare compositions such as coatings that have improved water resistance, blush resistance, and/or resistance to hydrostatic pressures. Methods of making the copolymers are also provided.

Provided is an alicyclic epoxy compound product used in applications for forming a cured product excellent in heat resistance and transparency. The alicyclic epoxy compound product according to an embodiment of the present invention includes 3,4-epoxycyclohexylmethyl(3,4-epoxy)cyclohexanecarboxylate, a purity of which is of not less than 98.5 wt. %, and each content of a compound represented by Formula (a) below, a compound represented by Formula (b) below, a compound represented by Formula (c) below, and a compound represented by Formula (d) below is not greater than 0.5 wt. %. ##STR00001##

The present invention relates to silyl terminated polyurethanes and to intermediates for the preparation thereof. In particular to an allyl-monool-containing initiator, allyl-terminated polyurethane prepolymer and to processes for their preparation. According to another of its aspect, the invention relates to a product obtainable by curing the silyl terminated polyurethane of the invention and to uses thereof.

The present invention relates to a multi-aziridine compound having: a) at least 2 of the following structural units (A) whereby R.sub.1 is H; R.sub.2 and R.sub.4 are independently chosen from H, a linear group containing from 1 to 8 carbon atoms and optionally containing one or more heteroatoms, a branched or cyclic group containing from 3 to 8 carbon atoms and optionally containing one or more heteroatoms, phenyl, benzyl, or pyridinyl; R.sub.3 is chosen from a linear group containing from 1 to 8 carbon atoms and optionally containing one or more heteroatoms, a branched or cyclic group containing from 3 to 8 carbon atoms and optionally containing one or more heteroatoms, phenyl, benzyl, or pyridinyl; or R.sub.2 and R.sub.3 (in case R.sub.2 is different than H) may be part of the same cyclic group containing from 3 to 8 carbon atoms; R′ and R″ are independently H or an aliphatic hydrocarbon group containing from 1 to 12 carbon atoms; and b) a molecular weight of at least 600 Daltons, wherein the molecular weight is determined using MALDI-TOF mass spectrometry according to the description.

Disclosed is an impact-resistant and aging-resistant reflective plastic applied to an automobile, which is prepared by copolymerizing of polyether polyol, 4,4,4-triphenylmethane triisocyanate and a benzimidazole derivative modified ZnS-mesoporous silica composite, the benzimidazole derivative modified ZnS-mesoporous silica composite is a ZnS-mesoporous silica composite modified by an anti-aging agent and a silane coupling agent KH-560, the ZnS-mesoporous silica is obtained by mixing an amphoteric surfactant, zinc chloride, and γ-aminopropyltrimethoxysilane uniformly, then reacting in ethyl orthosilicate, and calcining with hydrogen sulfide. In the present disclosure, by dispersing zinc sulfide in the pores of mesoporous carbon dioxide, chemical grafting 2-(2-hydroxy-5-aminophenyl)benzimidazole as a bridge onto isocyanate, and then polymerizing into polyurethane, which can improve the reflective performance and aging resistance of polyurethane, and improve the abrasion resistance and impact resistance.

The present invention provides a polyisocyanate composition comprising at least one isocyanate compound selected from the group consisting of an aliphatic isocyanate and an alicyclic isocyanate as a skeleton, wherein an average value of a total number of isocyanate groups blocked with a blocking agent and not blocked with a blocking agent per polyisocyanate molecule is 2 or more, and among the isocyanate groups in the polyisocyanate composition, 1 mol % or more and 99 mol % or less are blocked with a blocking agent, and the like.

An one-part polyurethane composition, including: A) 15-75 wt.-% of at least one isocyanate-functional polyurethane polymer; B) 5-30 wt.-% of at least one organic thixotropy agent; C) 2-25 wt.-% of at least one plasticizer having viscosity of less than 500 mPa s, measured at 0° C. with cone-plate viscosimeter, shear rate 10 s.sup.−1, cone angle 1°, spindle 25-2, and cone tip-plate distance of 0.05 mm; D) 0-15 wt.-% of at least one solvent; E) 0-50 wt.-% of at least one filler; F) at least one catalyst for curing of polyurethane compositions; wherein isocyanate-functional polyurethane polymer has NCO content in range of 0.8%-2.5% by weight and is obtained from reaction of methylene diphenyl diisocyanate (MDI) and polyol in NCO/OH ratio of at least 3/1 and subsequent removal of non-reacted MDI; and polyol has viscosity, measured according to ASTM D4878-15 at 25° C., of less than 2000 mPa s; and isocyanate-functional polyurethane polymer has remaining content of MDI of at most 0.5% by weight.

A moisture curable composition capable of cure to an elastomeric body, the composition comprising: (i) an organopolysiloxane polymer having at least two silicon-bonded hydroxyl or hydrolysable groups per molecule and a viscosity of from 1,000 to 75,000 maPa.Math.s at 25° C.; (ii) a siloxane and/or silane cross-linker; (iii) an organosilicate resin comprising SiO.sub.4/2 (Q) siloxane units and R.sup.2.sub.3SiO.sub.1/2 (M) siloxane units wherein each R.sup.2 is selected from hydrocarbon groups, —OH and/or alkoxy containing groups and which M groups are reactive with components (i) and/or (ii); and (iv)_a condensation cure catalyst. The organosilicate resin (iii) is generally used to reinforce the composition.

The present disclosure relates to compositions comprising a copolymer derived from a vinyl aromatic monomer, a (meth)acrylate monomer, an acid monomer, and a copolymerizable surfactant and compositions comprising the same. The (meth)acrylate monomer can be selected from a monomer having a theoretical glass transition temperature (T.sub.g) for its corresponding homopolymer of 0° C. or less or a hydrophobic (meth)acrylate monomer. In some embodiments, the copolymer is further derived from an organosilane. The copolymers can have a theoretical glass transition temperature (T.sub.g) from −60° C. to 80° C. and a number average particle size of 250 nm or less. The compositions can be used to prepare compositions such as coatings that have improved water resistance, blush resistance, and/or resistance to hydrostatic pressures. Methods of making the copolymers are also provided.

A moisture-curable composition, including at least one organic polymer P containing reactive silane groups, between 1.0 wt.-% and 25.0 wt.-%, preferably between 2.0 wt.-% and 20 wt.-%, in particular between 2.5 wt.-% and 10 wt.-%, based on the total composition, of dimethyl or diethyl esters of aliphatic C3 to C5 dicarboxylic acids, and at least one curing catalyst for alkoxysilane groups. The moisture-curable composition is particularly suitable as elastic adhesive, coating, filler, or sealant and shows superior overpaintability, in particular with automotive topcoats or similar paints.