Surface modified, U.V. stabilized, polyvinyl chloride article
    14.
    发明授权
    Surface modified, U.V. stabilized, polyvinyl chloride article 失效
    表面改性 稳定的聚氯乙烯制品

    公开(公告)号:US5185191A

    公开(公告)日:1993-02-09

    申请号:US593991

    申请日:1990-10-09

    Abstract: A surface modified, U.V. stabilized opaque polyvinyl chloride resin article and process for making same is described. The article includes a white pigment, such as titanium dioxide, in low amounts. The modified surface is substantially free of residual stabilizer and solvent, and its appearance and degree of surface perfection is substantially the same as an unmodified side of the article.The process of the invention is characterized by the steps of immersing the polyvinyl chloride article is immersed in a suitable liquid media, then contacted with a solution of an ultraviolet light stabilizer in a suitable organic solvent, and residual stabilizer and solvent are displaced in situ, i.e. in a non-evaporative environment without contacting the air.

    Abstract translation: 表面改性 稳定的不透明聚氯乙烯树脂制品及其制造方法。 该制品含有少量白色颜料,如二氧化钛。 改性表面基本上没有残留的稳定剂和溶剂,其外观和表面完全程度与制品的未改性侧基本相同。 本发明的方法的特征在于将聚氯乙烯制品浸入合适的液体介质中,然后与紫外光稳定剂在合适的有机溶剂中的溶液接触,残留的稳定剂和溶剂原位置换, 即在不与空气接触的非蒸发环境中。

    Process for making a surface modified polymer article
    15.
    发明授权
    Process for making a surface modified polymer article 失效
    制备表面改性聚合物制品的方法

    公开(公告)号:US5110634A

    公开(公告)日:1992-05-05

    申请号:US345190

    申请日:1989-05-01

    CPC classification number: B05C3/18 B05C9/02 B05D1/18 B05D1/20 B05D7/02 C08J7/065

    Abstract: A surface modified U.V. stabilized article is described which includes a resinous sheet whose sides are both exposed to the air. The surface regions of both sides of the sheet are substantially fully modified in situ with a stabilizing amount of an ingredient such as an ultraviolet light stabilizer material, while the exposed surfaces are substantially free of residual stabilizer and solvent material. The appearance and degree of surface perfection of the modified sides of the sheet are substantially the same as that of an untreated sheet. The U.V. stabilized resin article is made by a continuous process in which the resin body is immersed in a solution of an ultraviolet light stabilizer in a suitable organic solvent, and thereafter, residual stabilizer and solvent are displaced from the modified surfaces in situ. Both steps in the process are carried out in an environment which is non-evaporative of the solvent.

    Abstract translation: 表面改性紫外线 描述了包括其侧面都暴露于空气的树脂片的稳定制品。 片材两面的表面区域用稳定量的成分如紫外光稳定剂材料基本上完全改性,而暴露的表面基本上没有残留的稳定剂和溶剂材料。 片材的改性面的外观和表面的完整度与未经处理的片材基本相同。 紫外线 通过将树脂体浸渍在合适的有机溶剂中的紫外线稳定剂的溶液中的连续方法制造稳定的树脂制品,之后残留的稳定剂和溶剂从原位置于变性面上。 该方法中的两个步骤在不溶于溶剂的环境中进行。

    Process for surface modification of polymer articles
    16.
    发明授权
    Process for surface modification of polymer articles 失效
    聚合物制品的表面改性方法

    公开(公告)号:US4990369A

    公开(公告)日:1991-02-05

    申请号:US410760

    申请日:1989-09-22

    CPC classification number: C08J7/065 B05C3/18 B05C9/02 B05D1/18 B05D1/20 B05D7/02

    Abstract: An improvement in the process of incorporating a modifier ingredient into the surface region of a resinous article is described herein. The basic process includes immersing the article in a liquid such as water and contacting the immersed article with a solution of a modifier ingredient in a solvent which is immiscible with the liquid. The improvement herein comprises running the process at a temperature lower than ambient or room temperature whereat substantially no solid material is formed on the surface of the water layer during the process.

    Abstract translation: 本文描述了将改性剂成分掺入到树脂制品的表面区域中的改进。 基本方法包括将物品浸入诸如水的液体中并使浸没的物品与改性剂成分在与液体不混溶的溶剂中的溶液接触。 本文的改进包括在低于环境温度或室温的温度下运行该方法,在该过程中基本上没有在水层的表面上形成固体材料。

    Process for making surface modified U.V. stabilized PVC articles
    17.
    发明授权
    Process for making surface modified U.V. stabilized PVC articles 失效
    制备表面改性紫外线的方法 稳定的PVC制品

    公开(公告)号:US4792465A

    公开(公告)日:1988-12-20

    申请号:US76648

    申请日:1987-07-23

    CPC classification number: B05C9/02 B05C3/18 B05D1/18 B05D1/20 B05D7/02 C08J7/065

    Abstract: What is described herein is a process of making a U.V. stabilized PVC article wherein the surface region of the article is modified with a U.V. stabilizer and the treated surface is substantially free of residual stabilizer thereon. The process includes the steps of (a) applying a solution of a U.V. stabilizer in a solvent which is capable of swelling the PVC but is otherwise non-aggressive thereto, and (b) displacing residual solution remaining on said thus treated surface by a liquid which is non-miscible with said solvent.In the preferred form of the invention, step (b) is carried out by contacting the treated surface with water to cause physical removal of the residual solution out of its position on the treated surface, such as by agitation, a jet stream, ultrasonics, and the like.

    Abstract translation: 这里描述的是制造紫外线 稳定的PVC制品,其中制品的表面区域用U.V. 稳定剂和经处理的表面基本上没有其上的残留稳定剂。 该方法包括以下步骤:(a) 在溶剂中的稳定剂,其能够使PVC膨胀但是对其不具有侵蚀性,和(b)通过与所述溶剂不可混溶的液体置换残留在所述经处理的表面上的残余溶液。 在本发明的优选形式中,步骤(b)通过使经处理的表面与水接触来进行,以将残余溶液物理除去其处理的表面上的位置,例如通过搅拌,喷射流,超声波, 等等。

    High efficiency diffusion lighting coverings

    公开(公告)号:US10732330B2

    公开(公告)日:2020-08-04

    申请号:US15552960

    申请日:2016-02-23

    Abstract: The invention relates to high efficiency diffusion lighting coverings useful in LED lighting applications. The diffusing lighting coverings are made of organic diffusing particles homogeneously dispersed in a transparent polymer matrix. The primary organic diffusing particles are refractive index mis-matched to the matrix polymer. The refractive index contrast between the polymer matrix and diffusion particles, and particle size are selected to provide a high efficiency (minimized particle loading). The high efficiency diffusion coverings provides excellent light diffusion, high hiding properties and high light transmission. The secondary diffusion particles may optionally be added to further improve selected target properties of the covering. Nano-sized ZnO inorganic particles may also function as diffusion particles and optical brighteners as well UV stabilizers. Articles made of this translucent composition are useful in commercial and residential lighting, motor vehicle illumination (lights, panels), street lighting, displays and signs, desktop monitors, and LCD/LED TVs.

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