摘要:
Provided are a coating composition for forming a gas barrier layer as configured such that a specific compound having two or more 5-membered cyclic carbonate groups and a compound having two or more amino groups are reactable at an equivalent ratio of functional groups of 0.8 to 1.25 to form the gas barrier layer with a polyhydroxyurethane resin as a principal component; a gas barrier film formed of a single layer or multiple layers, at least one of the layer or layers that forms or form the film is a layer that exhibits gas barrier properties, and the layer is formed of a polyhydroxyurethane resin having a specific chemical structure; and a production method of a film having gas barrier properties. Owing to the use of the specific polyhydroxyurethane resin, the coating composition, gas barrier film and production method readily enable to reduce moisture-dependent variations in gas barrier properties, to avoid the production of noxious fumes upon incineration disposal, to provide excellent processability, and to lower the pollutant load on the environment.
摘要:
Disclosed are a polysiloxane-modified polyhydroxy polyurethane resin characterized by being derived from a reaction between a 5-membered cyclic carbonate polysiloxane compound represented by the below-described formula (1) and an amine compound, and its production process; and a resin composition, thermal recording medium, imitation leather, thermoplastic polyolefin resin skin material, weather strip material, and weather strip, all of which make use of the resin.
摘要:
Provided are a self-crosslinking polysiloxane-modified polyhydroxy polyurethane resin derived from a reaction of a 5-membered cyclic carbonate polysiloxane compound represented by the following formula (1) and an amine compound and having polysiloxane segments and masked isocyanate groups in its structure: wherein A means and its production process. The present invention can provide a polyhydroxy polyurethane resin, the development of applications of which has not moved ahead in the prior art, as a novel self-crosslinking polyhydroxy polyurethane resin that enables to provide products excellent in lubricity, abrasion resistance, chemical resistance, non-tackiness, heat resistance and the like, is useful from the viewpoint of the reduction of warming gas, and is responsive to the environment.
摘要:
The present invention intends to provide a method for removing radioactive cesium or radioactive iodine and radioactive cesium that is simple and low-cost, further does not require an energy source such as electricity, moreover can take in and immobilize the removed radioactive substances within a solid, and can reduce the volume of radioactive waste as necessary and to provide a hydrophilic resin composition using for the method for removing radioactive cesium or radioactive iodine and radioactive cesium, and the object of the present invention is achieved by a method for removing radioactive cesium or a method for removing radioactive iodine and radioactive cesium applying removal processing to a radioactive substance in liquid and/or a solid matter using a hydrophilic resin composition comprising a hydrophilic resin and a metal ferrocyanide compound, wherein the hydrophilic resin comprises at least one hydrophilic resin selected from the group consisting of a hydrophilic polyurethane resin, a hydrophilic polyurea resin, and a hydrophilic polyurethane-polyurea resin each having at least a hydrophilic segment, and a metal ferrocyanide compound is dispersed in the hydrophilic resin composition in a ratio of at least 1 to 200 mass parts relative to 100 mass parts of the hydrophilic resin.
摘要:
A 5-membered cyclic carbonate polysiloxane compound is represented by the below-described formula (1), and is produced by a process that reacts an epoxy-modified polysiloxane compound with carbon dioxide.
wherein A means
in which R 1 means an alkylene group which has from 1 to 12 carbon atoms and may be linked via an element of O, S or N and/or -(C 2 H 4 O) b -, R 2 means a direct bond or an alkylene group having from 2 to 20 carbon atoms, R 2 may be linked to an alicyclic group or aromatic group, b stands for a number of from 1 to 300, and a stands for a number of from 1 to 300.