This invention relates to a polyol component P), to a process for preparing rigid polyurethane foams by using said polyol component P) and also to the rigid polyurethane foams themselves.

Processes are described for producing a polycyclic polyether polyol having a hydroxyl functionality of 1.5 to 6 and a number average molecular weight of 200 to 12,000 Da. The processes comprise alkoxylating a polyol starter comprising predominantly a polycyclic polyol with an alkylene oxide in the presence of a DMC catalyst.

Disclosed are compositions that comprise water and a polyether polyol derived from sucrose and an alkylene oxide, as well as polyurethane foam systems comprising such compositions, methods for their production, and the resulting polyurethane foams.

The present disclosure provides a lightweight tile. The lightweight tile has a tile body and a lacquer layer overlaying on the tile body. The tile body is composed of a rigid foamed resin having a plurality of void cells. The density of the rigid foamed resin is 0.2 to 0.45 g/cm.sup.3. The lightweight tile provided in the present disclosure is less dense than the conventional ceramic tiles. In addition, the heat insulation and sound insulation of the lightweight tile are excellent.

The present invention is directed to polyol composition comprising a polyol mixture (PM) comprising a polyetherol (P1) based on a polyhydric alcohol and a polyetherol (P2) based on a diamine; and at least one hydrohaloolefin (HFO) as blowing agent, a process for preparing a polyurethane foam using said polyol composition and the polyurethane foam obtained or obtainable by said process.

The hollow microballoon of the invention includes a resin produced by polymerizing a polymerizing composition that contains a cyclic molecule having at least three side chains with a polymerizable functional group introduced into the terminal thereof and a polymerizable monomer other than the cyclic molecule having at least three side chains with a polymerizable functional group introduced into the terminal thereof. According to the invention, there are provided hollow microballoon capable of imparting not only polishing characteristics but also excellent durability to a CMP polishing pad using the hollow microballoon.

Provided herein is a porous -cyclodextrin-containing monolith having a microstructure templated by the external phase of a HIPE, as well as processes of manufacturing the same and uses thereof.

The present invention provides a spherical powder having properties, such as an excellent strength, toughness, and deformation recovery, and provides a method for producing same. The present invention provides: a spherical powder containing a crosslinked body formed having (A) a polyrotaxane in which both ends of a pseudopolyrotaxane, which are formed by inclusion of the opening of a cyclic molecule by threading therethrough with a linear molecule, are provided with a capping group so that dethreading of the linear molecule is prevented, in particular, a spherical powder having an average particle diameter of 0.5 to 1,000 m, preferably 1 to 500 m, more preferably 1 to 300 m, and still more preferably 1 to 150 m; and a method for producing this spherical powder.

An exemplary embodiment of the present disclosure provides a polyurethane core for use in a floor or wall panel, the core comprising a polyol made, at least in part, from one or more recycled materials, and an isocyanate.

Disclosed are polyurethane-foam forming compositions, rigid polyurethane foams and methods for their production, as well as to composite articles comprising such foams sandwiched between facer substrates, including use of such composite elements for floor insulating elements for refrigerated tractor trailers. The rigid polyurethane foams are produced from an isocyanate-reactive component comprising: (1) a polyol blend; (2) a halogenated hydroolefin; (3) a surfactant; (4) water; and (5) a tertiary amine catalyst composition.