Abstract:
A foamed product that generates no smoke when incinerated, has a low calorific value, and achieves a desired dimension and thermal insulation performance is provided. A foamed product 1 is formed by heat-mixing, in an extruder 11, a paper pellet 7 that is a mixture of a fine paper powder having a particle diameter of 30 to 200 μm and starch, a container recycle pellet 8 that is a mixture of polypropylene, polyethylene, and polystyrene, foamable polypropylene 9, and water 10. A weight distribution is set so that the paper pellet 7 is 50 to 65% by weight, the container recycle pellet 8 is 13 to 25% by weight, the foamable polypropylene 9 is 10 to 30% by weight, and the water 10 is 10 to 20% by weight to these resins and other materials.
Abstract:
A foamed resin molded article that is obtained by kneading and foaming a pellet including one or more fluorine resins and a chemical foaming agent in an extrusion molding process. The pellet is formed by mixing powder of the one or more fluorine resins and powder of the chemical foaming agent without heating and melting, and solidifying and molding. A method of manufacturing a foamed resin molded article includes making pellets including one or more fluorine resins and a chemical foaming agent, and kneading and foaming the pellets in an extrusion molding process.
Abstract:
An ethylene-propylene-diene rubber foamed material is obtained by foaming a rubber composition containing an ethylene-propylene-diene rubber. A rate of change of an 80% compressive load value CL2 after being heated at 150° C. for 10 days to an 80% compressive load value CL1 before being heated is −50% or more and 50% or less and the 80% compressive load value CL1 before being heated is 0.5 N/cm2 or more and 10 N/cm2 or less.
Abstract translation:通过使含有乙烯 - 丙烯 - 二烯橡胶的橡胶组合物发泡,得到乙烯 - 丙烯 - 二烯橡胶发泡体。 在加热之前,在150℃加热10天后80%压缩载荷值CL1的80%压缩载荷值CL2的变化率为-50%以上且50%以下,80%压缩 加热前的负载值CL1为0.5N / cm 2以上且10N / cm 2以下。
Abstract:
A method of manufacturing a resin foam includes dissolving a blowing agent into a mixture of a resin C and a resin D having a difference of solubility with respect to the blowing agent in an amount of more than 0% and less than 5%; subjecting the mixture to heat-melting for extrusion; and evaporating the blowing agent such that the resin foam has a porosity (X) of not less than 80%, a cell (L) with a cell diameter of not less than 1 μm and not more than 1000 μm, and a cell (S) with a cell diameter of not less than 0.01 μm and less than 1 μm, in which two peaks are present in cell diameter distribution, one peak thereof being present in not less than 10 μm and not more than 500 μm and the other peak being present in not less than 0.01 μm and less than 1 μm.
Abstract:
A particulate polymeric composition capable of being processed to provide expanded articles having a density lower than or equal to 50 g/l and a closed cell content of at least 60% as specified by ASTM D-2856, wherein resulting particulates have a shape factor ranging from 0.6 to 0.99; and wherein the particulate polymeric composition is produced according to a process that prepares expandable granules based on thermoplastic polymers, through a granulation die.
Abstract:
A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion.
Abstract:
A method for producing an extruded heat-insulating foam board having a thickness of 10 to 150 mm, an apparent density of 20 to 50 kg/m3 and a closed cell content of at least 80% by extrusion foaming of a foamable resin melt containing a base resin composed primarily of a polystyrene resin, a physical blowing agent and a flame retardant, wherein 3 to 50 mol % of a hydrofluoroolefin, 30 to 70 mol % of a saturated hydrocarbon having 3 to 5 carbon atoms, and 5 to 50 mol % of water and/or carbon dioxide (where the sum of the contents of the hydrofluoroolefin, saturated hydrocarbon having 3 to 5 carbon atoms, water and/or carbon dioxide is 100 mol %) are used as the physical blowing agent. The extruded polystyrene resin heat-insulating foam board is produced with good extrusion foamability and moldability and has a high expansion ratio, a large thickness, excellent long-term heat-insulating properties and flame retardancy, and good appearance.
Abstract translation:一种挤出发泡性树脂熔体的制造方法,其特征在于,所述绝热泡沫板的厚度为10〜150mm,表观密度为20〜50kg / m 3,闭孔含量为80%以上, 主要由聚苯乙烯树脂,物理发泡剂和阻燃剂组成的基础树脂,其中3〜50摩尔%的氢氟烯烃,30〜70摩尔%的碳原子数3〜5的饱和烃和5〜50摩尔% 的水和/或二氧化碳(其中氢氟烯烃,碳原子数3〜5的饱和烃,水和/或二氧化碳的含量之和为100摩尔%)的总和用作物理发泡剂。 挤出聚苯乙烯树脂绝热泡沫板制造具有良好的挤出发泡性和成型性,并且具有高膨胀率,大厚度,优异的长期绝热性和阻燃性,以及良好的外观。
Abstract:
A functional TFE copolymer fine powder is described, wherein the TFE copolymer is a polymer of TFE and at least one functional comonomer, and wherein the TFE copolymer has functional groups that are pendant to the polymer chain. The functional TFE copolymer fine powder resin is paste extrudable and expandable. Methods for making the functional TFE copolymer are also described. The expanded functional TFE copolymer material may be post-reacted after expansion.
Abstract:
A foam comprises (a) starch, (b) plasticizer, (c) compatibilizer, and (d) polyolefin selected from one or more of ethylene homopolymer, ethylene/alpha-olefin copolymer, ethylene/vinyl ester of aliphatic carboxylic acid copolymer, propylene homopolymer, and propylene copolymers. The ratio of A to B is at least 0.01, where A is the sum of the weights of components (a) and (b), and B is the sum of the weights of components (a) though (d). The foam may have a density of at most 10 pounds/cubic foot.
Abstract:
The present invention provides azeotrope-like compositions of cis-1,3,3,3-tetrafluoroprone (HFO-1234ze (Z)) with 1,1,1,3,3-pentafluoropropane (HFC-245fa) and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agent compositions, and aerosol propellants.