Abstract:
An ethylene-propylene-diene rubber foamed material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. The ethylene-propylene-diene rubber foamed material has a 50 % compressive load value of 0.1 to 2.0 N/cm 2 and the content ratio of a sulfur atom calculated based on the measurement result of a fluorescent X-ray measurement, based on mass, is 1000 ppm or less.
Abstract:
The cross-linked polyolefin resin foam of the present invention is obtained by cross-linking and foaming a polyolefin resin composition, the composition including a polyolefin resin-containing resin (A), azodicarbonamide (B), and at least one basic magnesium (C) selected from the group consisting of magnesium oxide and magnesium hydroxide, wherein the amount of basic magnesium (C) included in the polyolefin resin composition is 0.05 to 0.5 parts by mass relative to 100 parts by mass of the resin (A), and the basic magnesium (C) has an average particle diameter of 0.1 to 15 µm.
Abstract:
The present invention provides a polyolefin-based resin foam that achieves both flame retardance and compression flexibility at a high level while satisfying a demand for achieving non-halogen (preferably, including non-phosphorus and non-antimony). The present invention is a non-halogen flame retardant resin foam made by crosslinking and foaming a polyolefin-based resin composition, a polyolefin-based resin foam having a 25% compression hardness in a thickness direction of 8 kPa or less as measured in accordance with JIS K6767, wherein the polyolefin-based resin composition contains a polyolefin-based resin, an organic filler and an inorganic filler, a total amount of compounding the organic filler and the inorganic filler being 100 to 200 parts by mass based on 100 parts by mass of the polyolefin-based resin.
Abstract:
The present invention provides, for example, a silicone porous body having a porous structure with less cracks and a high proportion of void space as well as having a strength. The silicone porous body of the present invention includes silicon compound microporous particles, wherein the silicon compound microporous particles are chemically bonded by catalysis. For example, the abrasion resistance measured with BEMCOT® is in the range from 60% to 100%, and the folding endurance measured by the MIT test is 100 times or more. The silicone porous body can be produced, for example, by forming the precursor of the silicone porous body using sol containing pulverized products of a gelled silicon compound and then chemically bonding the pulverized products contained in the precursor of the silicone porous body. The chemical bond among the pulverized products is preferably a chemical crosslinking bond among the pulverized products, for example.
Abstract:
A moisture barrier layer-foamed polymeric composite sheet underlayment article comprising a foamed polymeric sheet and a moisture barrier layer adhered thereto is disclosed. In one aspect, cork particles are present in the composite.
Abstract:
The present method for producing a crosslinked product include the steps of: melt molding an ethylene copolymer (A) or a resin composition containing the ethylene copolymer (A); and carrying out crosslinking; wherein the ethylene copolymer (A) contains a constitutional unit derived from ethylene and a constitutional unit derived from an ±-olefin having 3 to 20 carbon atoms, and satisfies the following requirements (1), (2) and (3): (1) a vinyl group content per 1,000 carbon atoms as measured by 1 H-NMR is from 0.06 to 1; (2) a ratio MFR 10/ MFR 2.16 is from 8.5 to 50; and (3) a density d is from 850 kg/m 3 to 920 kg/m 3 . The present method for producing a crosslinked product is capable of providing a crosslinked product having a good moldability and an excellent mechanical strength. Further, the present method is capable of providing a foamed product which is light weight and excellent in mechanical strength, with an excellent productivity; as well as providing crosslinked molded articles whose dimensional variations between individual products are small.
Abstract:
The invention relates to a process for the provision of a foamed layer (20) of a polymer composition on the surface (12) of a substrate (11), the process comprising the steps of (i) providing a heat-foamable curable polymer composition, wherein the composition is in form of particles having a particle size characterized by a D 50 value within the range of from 500 µm to 1500 µm, (ii) mixing the heat-foamable curable polymer composition with a carrier gas stream, (iii) spraying the composition on the surface of the substrate using a nozzle (1, 30), and (iv) heating the composition during its flight from the nozzle (1, 30) to the surface (12) of the substrate (11).
Abstract:
The invention relates to an aqueous coagulatable polymer dispersion comprising at least one polymer which is dispersed in an aqueous phase, thermoplastic microspheres which contain a propellant, and at least one additional component which is selected from the group consisting of polyols, polyamines, and thermoplastic polymers. The invention further relates to a coagulate which can be obtained by the thermal and/or mechanical and/or ultrasonically initiated coagulation of the aqueous polymer dispersion according to the invention, to an adhesive comprising or consisting of the coagulate, to a substrate which is completely or partly coated with said coagulate, to a method for producing such a coated substrate, and to coated substrates which can be obtained using said method. The coagulate can be used as an adhesive or as a binder in 3D printing methods.
Abstract:
The preparation method of superabsorbent polymer according to the present invention can increase suction power without degradation of other properties of superabsorbent polymer, and thus, the prepared superabsorbent polymer may be usefully used as material of hygienic goods such as a diaper.