| 摘要 |
PROBLEM TO BE SOLVED: To provide a soft to hard, translucent to highly transparent, gel-like or resinous polyurethane product, particularly a product having excellent luminescent property, and to provide its molding method. SOLUTION: The polyurethane product consists of a polyurethane and has a Shore hardness of 5-100 and an all light transmittance of 10-100%. The product can be (1) a gel having a Shore hardness of 5-30 and translucent with an all light transmittance of 10-50% or (2) resinous with a Shore hardness of 10-100 and highly transparent with an all light transmittance of≥80%. It can have a region containing a luminescent agent in at least a part of it or a region containing a light-reflective foil along with the above region. Also provided is the molding method of the polyurethane product in which the above polyurethane is cast into a mold made of a polyolefin based resin. The above product has excellent luminescent property and durability of luminescence and is odorless and harmless since it is obtained using materials that have passed Food Sanitation Standards. Its molding method is also provided. COPYRIGHT: (C)2007,JPO&INPIT |
