Provided is a flame-retardant foamable styrene resin composition having a high flame retardancy and thermal stability, and recyclable, with a small amount of a bromine-containing flame retardant added. A flame-retardant foamable styrene resin composition, containing (A) a styrene resin, (B) a bromine-containing organic compound, (C) zinc oxide, and (D) a foaming agent, in which an amount of (C) the zinc oxide added is less than 2 parts by weight per 100 parts by weight of (A) the styrene resin.

A polyolefin composition is foamed by a process in which a nucleator is used, and the nucleator comprises 80% or more of unagglomerated fluororesin particles and/or agglomerates of fluororesin particles in which both the unagglomerated particles and the agglomerates are less than 1 m in size.

A polyolefin composition is foamed by a process in which a nucleator is used, and the nucleator comprises 80% or more of unagglomerated fluororesin particles and/or agglomerates of fluororesin particles in which both the unagglomerated particles and the agglomerates are less than 1 m in size.

Reversibly cross-linkable foam is provided. The reversibly cross-linked foam includes a first polymeric material, at least one reversibly cross-linkable monomer polymerized with the first polymeric material, and at least one blowing agent. The reversibly cross-linkable co-polymeric foam is thermally stable at temperatures of at least 10 degrees higher than otherwise identical polymeric foam that does not include the reversibly cross-linkable agent polymerized with the first polymeric material.

A styrene resin extruded foam includes graphite and a styrene resin. The graphite is in an amount of 0.5 to 10.0 parts by weight relative to 100 parts by weight of the styrene resin. The graphite has an average particle diameter of 2.5 m to 9 m. A laser scattering intensity is not less than 5 {%/(mg/mL)}/wt % per unit solution concentration of the graphite as measured by a particular method.

Three-dimensional (3D) suction molding methods and related polymeric foam articles are described. The methods may be used in discontinuous plastication processes.

This invention provides flame retardant compositions comprised of or formed from components comprising a sulfur-containing compound and at least one isocyanate-reactive brominated flame retardant.

An embodiment relates to a porous polyurethane polishing pad for use in a chemical mechanical planarization (CMP) process of semiconductors and a process for preparing the same. In the porous polyurethane polishing pad, the polishing performance (or polishing rate) thereof can be controlled by adjusting the size and distribution of pores in the polishing pad.

A surfactant and a method of forming the surfactant having the formula (I) where a is an integer from 1 to 10, b is an integer from 0 to 10, R.sub.1 is CH.sub.3 or H, n is an integer from 0 to 20, and R.sub.2 is a moiety selected from the group consisting of (II), (III), (IV), (V), (VI), (VII) or (VIII) where m is an integer from 0 to 4. The surfactant can be used in a method for preparing a rigid polyurethane foam. ##STR00001##

Reversibly cross-linkable foam is provided. The reversibly cross-linked foam includes a first polymeric material, at least one reversibly cross-linkable monomer polymerized with the first polymeric material, and at least one blowing agent. The reversibly cross-linkable co-polymeric foam is thermally stable at temperatures of at least 10 degrees higher than otherwise identical polymeric foam that does not include the reversibly cross-linkable agent polymerized with the first polymeric material.