Provided is a flame-retardant foam which has high flame retardancy, is excellent in flexibility, and is excellent in stress dispersibility. Also provided is a foam member including such flame-retardant foam as a flame-retardant foam layer. The flame-retardant foam of the present invention has an apparent density of from 0.02 g/cm.sup.3 to 0.40 g/cm.sup.3, a 50% compression load of from 0.5 N/cm.sup.2 to 8.0 N/cm.sup.2, and a rupture elongation in a tensile test of 120% or less.

The present invention relates to an expandable polymeric composition comprising: a) a polymeric matrix containing vinyl aromatic polymers and/or copolymers; b) from 0.1% to 20% by weight, calculated on the polymeric matrix (a), of an athermanous agent; c) from 0.01% to 10% by weight, calculated on the polymeric matrix (a), of at least one non-polymeric brominated flame retardant additive; d) from 0.01% to 10% by weight, calculated on the polymeric matrix (a), of at least one brominated polymer containing at least 50% bromine; e) from 0.01% to 5% by weight, calculated on the polymeric matrix (a), of a synergistic flame retardant additive; f) from 1% by weight to 10% by weight of at least one blowing agent.

Compositions are provided including an uncrosslinked thermoplastic nitrogen-containing matrix material and composite particles distributed in the matrix material. The composite particles each include a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are foam compositions and particles including the foam compositions, such as a sheet or multilayer construction. Composite particles are further provided. Methods of making the foam compositions are additionally described herein. Also, polishing pads, polishing systems, and methods of polishing a substrate are provided.

A polypropylene-based resin composition contains: a component (A1) being a propylene homopolymer or a copolymer of propylene and a 30 wt % or less α-olefin having 2 or 4 to 8 carbon atoms, having a intrinsic viscosity of more than 20 dl/g, as measured in a tetralin solvent at 135° C.; and a component (A2) being a polymer selected from the group consisting of (A2-1) a propylene homopolymer, (A2-2) a random copolymer of propylene and an α-olefin having 2 or 4 to 8 carbon atoms, (A2-3) a block copolymer of propylene and an α-olefin having 2 or 4 to 8 carbon atoms, and a combination of the (A2-1), (A2-2), and (A2-3).

The resin composition has a content of the component (A1) of 0.1 to 10 wt % and a content of the component (A2) of 99.9 to 90 wt % based on the total amount of the component (A1) and the component (A2). The component (A2) has a melt flow rate (MFR) (230° C., load: 2.16 kg) of 1 to 500 g/10 min.

A repeelable adhesive including a photocurable adhesive and a heat foaming agent and a repeelable adhesive tape including the repeelable adhesive are disclosed. The repeelable adhesive maintains excellent adhesion, but easily peels off from an adherend after ultraviolet (UV) irradiation and heating.

The present invention relates to plant based materials, methods for their manufacture and biomaterials incorporating plant based materials.

A polyolefin-based resin foamed sheet includes a polyolefin-based resin, wherein a thickness of the foamed sheet is 0.05-0.5 mm, a 25% compression hardness defined in JIS K6767(1999) is 20-100 kPa, a ratio of cell sizes in longitudinal and thickness directions is 9-30, a ratio of cell sizes in width and thickness directions is 9-30, and an average cell film thickness in the thickness direction of the foamed sheet is 2-7 μm.

A masterbatch composition suitable for use as a flame retardant in extruded polymer foams, and process for manufacturing the same, and extruded foams containing same; the composition comprising: (a) 20 to 40 parts by weight base resin comprising styrene homopolymer or copolymer; (b) 1 to 16 parts by weight acid scavenger comprising an epoxy-based compound; (c) 2 to 6 parts by weight antioxidant comprising an alkyl or aryl phosphite; and (d) 45 to 60 parts by weight flame retardant comprising a non-hexabromocyclododecane (HBCD) brominated polymer or copolymer, wherein the amounts of (a), (b), (c), and (d) total 100 parts by weight; and (e) 0.6 to 10 parts by weight of pH moderator, based on 100 parts of (a) base resin plus (e) water soluble pH moderator.

Method for preparing porous polyurethane materials with controlled pore size and shape using isocyanates, polyols, and additives, and the porous polyurethane materials prepared therefrom. Method for preparing porous polyimides using at least one polyamine and a dianhydride and the porous polyimides materials prepared therefrom. The porous materials are useful for energy management, such as thermal, impact and vibration energy, and can exhibit improved fire-resistant performance.

Polymeric based closed cell foams, such as shape memory polymer foams, contain bubbles. Making these bubbles continuous is called reticulation. Disclosed are embodiments of a device and method to controllably reticulate polymer-based closed cell foams by puncturing the membranes of these polymer-based closed cell foams.