METHOD FOR MANUFACTURING RE-BONDED CHIP PRODUCT FOR VEHICLE AND RE-BONDED CHIP PRODUCT FOR VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide a re-bonded chip product for a vehicle such as a lightweight seat cushion having proper hardness or a floor mat having sufficient hardness and excellent in fogging resistance, and the re-bonded chip product. SOLUTION: A mixture of p-MDI and TDI or a prepolymer prepared using a raw material containing 100 mass pts. of p-MDI, 10-50 mass pts., especially 15-40 mass pts. of polyol with a mol.wt. of 1,000-4,000 and a hydroxyl number of 250 or less, especially, 40-120 and 5-40 mass pts. of a plasticizer with a mol.wt. of 395 or more and a boiling point of 340 deg.C or higher or propylene carbonate is used as a binder to manufacture the re-bonded chip product for a vehicle. The viscosity of the polyol at 25 deg.C is preferably 400 mPa s or less and, as the plasticizer used as a diluent, diisononyadipate or the like is preferably used.