| 摘要 |
<p>PURPOSE:The enhance the lubricity and wear resistance by incorporating a specified carboxyl modified org. silicone compound to a magnetic layer. CONSTITUTION:A carboxyl modified org. silicone compound represented by the general formula (where each of R1 and R2 is -CH3 or R3COOH, R3 is 1-26C hydrocarbon group, n1 is an integer of 0-<1,000, n2 is an integer of 1-500 and n1+n2<=1,000) is incorporated to a magnetic layer using a binder contg. polyurethane resin with <=10,000mol.wt. Said silicone compound has a hydrocarbon group having a carboxyl group with a great affinity for the binder in the principal chain, or it has such hydrocarbon groups in the principal chain and at both terminals of the principal chain.</p> |
