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    • 7. 发明授权
    • System and method of making an in-mold clear-coated composite
    • 制造模内透明复合材料的系统和方法
    • US06890586B2
    • 2005-05-10
    • US09934263
    • 2001-08-21
    • Charles BeckMichael Jewett
    • Charles BeckMichael Jewett
    • B29C37/00B05D1/02
    • B29C37/0032B29K2075/00B29K2105/06B29K2309/08Y10T428/31551
    • A plastic product covered with a clear coating which is applied through an in-mold coating process. Covalent bonds hold the clear coating and the plastic substrate together, and the clear coating is capable of resisting delamination and of inhibiting fading of a pigmented surface underlying the clear coating. A preferred in-mold coating method of preparing a plastic part with a clear-coat surface includes the steps of (a) providing a mold, (b) heating the mold, (c) providing an unpigmented first-reactant/solvent mixture, (d) providing an unpigmented second-reactant/solvent mixture, (e) mixing the first-reactant/solvent mixture and the second-reactant/solvent mixture to form a clear-coat mixture, (f) spraying the clear-coat mixture onto the heated mold surface, (g) providing a pigmented third-reactant/solvent mixture, (h) providing a fourth-reactant/solvent mixture, (i) mixing the third-reactant/solvent mixture and the fourth-reactant/solvent mixture to form a pigmented mixture, (j) spraying the pigmented mixture, during the open time of the clear-coat mixture, onto the clear-coat mixture previously sprayed onto the heated mold surface, (k) applying, over the sprayed pigmented mixture, a substrate-forming material, so as to create an uncured preform, and (l) allowing the preform to cure so as to form a substrate having a clear-coat surface.
    • 覆盖有透明涂层的塑料制品,其通过模内涂覆工艺施加。 共价键将透明涂层和塑料基材保持在一起,并且透明涂层能够抵抗分层并抑制在透明涂层下面的着色表面的褪色。 制备具有透明涂层表面的塑料部件的优选的模内涂布方法包括以下步骤:(a)提供模具,(b)加热模具,(c)提供未着色的第一反应物/溶剂混合物( d)提供未着色的第二反应物/溶剂混合物,(e)将第一反应物/溶剂混合物和第二反应物/溶剂混合物混合以形成透明涂层混合物,(f)将透明涂层混合物喷涂到 加热的模具表面,(g)提供着色的第三反应物/溶剂混合物,(h)提供第四反应物/溶剂混合物,(i)将第三反应物/溶剂混合物和第四反应物/溶剂混合物混合以形成 着色混合物,(j)在透明涂层混合物的开放时间期间将着色混合物喷雾到预先喷涂到加热的模具表面上的透明涂料混合物上,(k)在喷涂的着色混合物上涂布基材 以便产生未固化的预成型件,和(l)允许预成型件固化,从而使其成型 以形成具有透明涂层表面的基材。