The present invention provides a liquid polysiloxane comprising a siloxane-thiourea segment and a crosslinkable functional group(s) selected from one or more ethylenically unsaturated groups, silyl hydride groups, alkylenethiol groups and combinations thereof.

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 an asphalt composition comprising a thermosetting reactive compound.

Provided are a plasticizer composition which is eco-friendly and exhibits excellent viscosity-controlling effect, processability, low-temperature properties, and migration resistance, and sealant/adhesive compositions including the same.

1) A sealant composition comprising: from 3% to 80% of a polymer (A) comprising an alkoxysilane group, at least 25% of a carbonate filler (B), and from 0.5% to 20% of a polysiloxane resin (C) comprising, as groups directly linked to the silicon atom: at least one phenyl group; and at least one group chosen from a hydroxyl and an aminoalkylene group; and from 0.1% to 1% of a crosslinking catalyst (D);

said percentages being expressed by weight on the basis of the total weight of said composition.

2) The use of said composition as adhesive, sealant or coating.

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.

Provided herein is a method of producing a polyurethane foam. The method includes dispersing turbostratic graphene in a polymerization solution. The polymerization solution includes a first component for polymerization into a polymer. The method includes adding a second component for polymerizing with the first component to chemically convert the polymerization solution into a polyurethane foam. Provided herein is also a polyurethane foam which includes a turbostratic graphene and a polymer formed from the polymerization of a polyol with an isocyanate. Provided herein is also a turbostratic graphene dispersion which includes a turbostratic graphene and a solvent for dispersing the turbostratic graphene.

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.

A sealing member according to the present invention is a sealing member against a synthetic oil containing an ester-type additive, and includes 95.0% by mass or more and 99.5% by mass or less of a para-phenylene diisocyanate-based polyurethane and 0.5% by mass or more and 5% by mass or less of a same compound as the ester-based additive. The sealing member according to the present invention has a smaller friction coefficient and more excellent deformability than conventional sealing members and that can inhibit swelling caused by a synthetic oil.

A chemical composition for a degradable polymeric material includes an isocyanate terminated prepolymer, including prepolymer units as a main chain with a plurality of isocynanates at ends of the main chain, a catalyst additive, and a cross-linking agent. The isocyanate terminated prepolymer can be an isocyanate terminated polyester, polycarbonate or polyether prepolymer. The isocyanate terminated prepolymer has a structural formula as follows:

ONC—R″—NH—[—CO—R—CO—O—R′—O—]n—NH—R″—CNO

wherein R, R′ and R″ are an aryl group or alkyl group and wherein n is a number of prepolymer units corresponding to length of the main chain. The composition degrades at a rate and at a delay for failure between 8-72 hours. The composition is a dissolvable rubber material with a modulus and elongation suitable for a component of a downhole tool.