What are described are compositions for production of polyurethane foam, comprising at least an isocyanate component, a polyol component, optionally a catalyst that catalyzes the formation of a urethane or isocyanurate bond, optionally blowing agent, wherein the composition comprises block copolymers based on OH- or amino-functionalized polyolefins and polyesters that act as foam stabilizer.

A moisture barrier coating includes the reaction product of (A) at least one polyol and (B) at least one polyisocyanate. The moisture barrier coating further includes at least one amorphous thermoplastic material that forms a homogeneous mixture with the polyol, and is nonreactive with the polyol and with the polyisocyanate. A controlled release fertilizer, a method for the production of a controlled release fertilizer, and a moisture barrier coating composition are also disclosed.

The present disclosure provides a method for preparing an aerogel or a foam, the method comprising: forming a reaction mixture comprising a cellulose nanofibril gel, a first solvent, and one or more crosslinking agents under conditions sufficient to crosslink the gel; and contacting the crosslinked gel with a second solvent under conditions sufficient to dry the crosslinked gel, thereby forming an aerogel or foam.

Biobased diisocyanates are derived from 3-petadecyl phenol, which is derived from Cardanol harvested from cashew nutshell liquid food waste. The biobased diisocyanates are of the formulas: ##STR00001##
wherein R is an alkyl chain C.sub.15H.sub.31 (n-pentadecyl); R.sub.1=CH.sub.3 or COCH.sub.3; and R.sub.2 is an alkylene of from about 1 to 18 carbon atoms.

The objective of the present invention is to provide a liquid composition which is for a fiber reinforced plastic intermediate base material, and which imparts excellent FRP mechanical properties and can suppress voids as much as possible.

The liquid composition for a fiber reinforced plastic intermediate base material according to the present invention is characterized by being obtained by mixing (A) and (B). (A): a composition including a compound (a) having at least two isocyanate groups, and (B): a composition which includes (b1) as an essential component and may include (b2) and (b3).

(b1): a monoalcohol compound having an ethylenically unsaturated group,

(b2): a compound having at least two reactive groups with isocyanate groups

, and (b3): a polymerization inhibitor.

Disclosed herein are viscoelastic elastomeric polyurethane foams, a process for preparing them and a method of using them in making shaped articles. Further disclosed herein are of viscoelastic elastomeric polyurethane foams having improved, unique impact absorption performance.

An epoxy resin composition contains components (A)-(C), and satisfies the expressions below: Component (A): an aliphatic epoxy resin having one hydroxyl group and two to three epoxy groups in one molecule; Component (B): an aliphatic epoxy resin having no hydroxyl group and three epoxy groups in one molecule; Component (C): a polyisocyanate compound; 0.125≤A/B≤3; and 0.2<(A+B)/T≤0.8 (A: parts by mass of component (A), B: parts by mass of component (B), and T: total parts by mass of the epoxy resins in the epoxy resin composition).

The polyurethane resin composition contains, a polyisocyanate component containing p-MDI, a polyol component, an organic metal catalyst, and a reaction retardant represented by general formula (1) below, wherein the mole ratio of the reaction retardant relative to 1 mol of the organic metal catalyst is 0.50 or more and 2.50 or less. (in general formula (1), A represents an aliphatic ring or an aromatic ring, R.sup.1 represents a hydrocarbon group composing ring A, R.sup.2 represents an aliphatic hydrocarbon group bonded to ring A. R.sup.3 represents a hydrogen atom or alkyl group bonded to nitrogen atom included in ring A. R.sup.1 represents a hydrogen atom or carboxyl group bonded to ring A. m is 1 or 2, n is 0 or 1, and total of n and no is 2 or less.) ##STR00001##

The present invention relates to a method for reducing the emission of hydrogen sulfide during the production of an asphalt composition.

The application relates to a two-component composition comprising: a component A comprising: at least one polyurethane P having at least two terminal (meth)acrylate functions; at least one reducing agent; and at least one (meth)acrylate monomer M1 selected from among the following compounds and mixtures thereof:

##STR00001## a component B comprising: at least one oxidizing agent; and optionally at least one methacrylate monomer.