Asahi Lite Optical Co., Ltd.

Hizashi Sonezaki

Masanori Washida

A coating composition capable of forming a curable coating layer having a sufficient dyeability on a resin substrate and improving adhesion after dyeing between the resin substrate and the curable coating layer, and a resin product having optical permeability applied with the curable coating layer by the composition are provided. The coating composition contains an ingredient (A): a hydrolyzate of an organosilane with the content of a bifunctional organosilane of from 50 to 100% by weight, an ingredient (B): colloid particles of metal oxide, and an ingredient (C): a solvent.

Coating composition and resin article having optical permeability

A coating composition having a high adhesion which is capable of forming a cured film on a resin substrate by using one liquid. There is further provided a coating composition which is capable of obtaining a cured film having favorable dyability which is effective to a resin substrate having a poor dyability and, also, capable of suppressing a whitening phenomenon, and a resin product having the coating composition. The coating composition contains (A) component: a polycarbonate diol, (B) component: colloidal particles of a metal oxide, (C) component: a hydrolysate of an organosilane and (D) component: a solvent. The polycarbonate diol functions as an adhesion promoter and is effective in forming the cured film on the resin formed product without applying the pretreatment liquid. Further, since the polycarbonate diol functions also as a dyability imparting agent, the dying performance thereof can be adjusted according to the amount thereof.

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Sabae, Japan

Hizashi Sonezaki