| 摘要 |
<p>1512818 Electron beam-cured coatings TORAY INDUSTRIES INC and NIPPON STEEL CORP 29 Oct 1975 [31 Oct 1974] 44678/75 Heading B2E [Also in Division C3] Metal substrates (e.g. steel or aluminium) are coated with composition comprising (by weight) (A) 100 parts of a polymer of 50-100% by weight of an acrylate, methacrylate, ethacrylate or alpha-haloacrylate having a mol. wt. of 15,000 to 800,000; (B) 5-150 parts of a compound having at least two polymerisable double bonds; and (c) 0.2-15 parts of a non - polymerisable, non-volatile organic compound having a mol. wt. not greater than 3000 and a solubility parameter of 8.3 to 10.9 and cured by electron-beam irradiation. Component C serves to prevent cracking of the coating when the latter is subject to abrupt deformation, this component is suitably a plasticiser-type ester, e.g. dioctyl adipate, dioctyl sebacate, dioctyl phthalate or triphenyl phosphate. The metal substrate may be primed with a conventional primer or with a composition as defined above containing a corrosion-resistant pigment. The top-coating compositions may be pigmented, and may also be applied to other substrates, e.g. wood, plastics, films, glass and ceramics.</p> |
