申请人:Hughes Roderick
公开号:US10253207B2
公开(公告)日:2019-04-09
Compositions and articles comprising a stress and crack resistant component comprising a thermoplastic component and an elongation component. In some examples, the invention is directed to a stress and crack resistant component comprising a thermoplastic component, an elongation modifier component and an elongation temperer; in preferred examples the thermoplastic component comprises a polyethylene terephthalate glycol-modified (PETG) copolyester, the elongation modifier component comprises a halogenated polyolefin having a heat of fusion of 1 J/g or less, and the elongation temperer comprises a polystyrene acrylonitrile) (SAN). In preferred examples the stress-resistant component is comprised as a coating component covering at least one surface of a substrate, such as one comprising a medium density fiberboard (MDF), a particle board, an oriented strand board, fiberglass, a natural wood, a composite wood product, and a synthetic substrate. The stress-resistant component is preferably, though not invariably, produced by extrusion. The invention is also directed to articles, such as extrusion profiles, comprising the stress-resistant component, and methods of making such articles.
由热塑性成分和伸长成分组成的抗应力和抗裂成分的组合物和物品。在一些实例中,本发明涉及一种抗应力和抗裂组分,该组分包括热塑性组分、伸长改性剂组分和伸长调质剂;在优选实例中,热塑性组分包括聚对苯二甲酸乙二醇酯改性(PETG)共聚聚酯,伸长改性剂组分包括熔融热为 1 焦耳/克或更低的卤代聚烯烃,伸长调质剂包括聚苯乙烯丙烯腈(SAN)。在优选的例子中,抗应力成分是作为一种涂层成分,覆盖基材的至少一个表面,例如包括中密度纤维板(MDF)、刨花板、定向刨花板、玻璃纤维、天然木材、复合木制品和合成基材。抗应力成分最好是通过挤压生产出来的,但并非一成不变。本发明还涉及包括抗应力成分的制品,如挤压型材,以及制造这种制品的方法。