All-polymeric ultraviolet light reflecting film
    22.
    发明授权
    All-polymeric ultraviolet light reflecting film 失效
    全聚合紫外光反射膜

    公开(公告)号:US5540978A

    公开(公告)日:1996-07-30

    申请号:US240970

    申请日:1994-05-11

    申请人: Walter J. Schrenk

    发明人: Walter J. Schrenk

    摘要: An all-polymeric ultraviolet light reflective film which is lower in cost than previously used reflector materials, is weather resistant, and which does not absorb significant amounts of solar ultraviolet energy is provided. The film includes a sufficient number of alternating layers of at least first and second diverse polymeric materials which have an average percent transmission of greater than about 50% between wavelengths of 300-400 nm. A substantial majority of the individual layers of the film have optical thicknesses in the range where the sum of the optical thicknesses in a repeating unit of the polymeric materials is between about 0.15 .mu.m to about 0.228 .mu.m, and the first and second polymeric materials differ from each other in refractive index by at least about 0.03 in the wavelength range of from about 300-400 nm. The reflective film is useful as a reflective material in solar detoxification systems, as a protective material in indoor and outdoor lighting systems, as a UV mirror in the fields of medical imaging, astronomical telescopes, and microscopy or in chemical reactions using UV radiation.

    摘要翻译: 与以前使用的反射材料相比,成本低的全聚合紫外光反射膜具有耐候性,并且不能吸收大量的太阳能紫外线能量。 该膜包括至少第一和第二种不同聚合物材料的足够数量的交替层,其平均透射率在300-400nm波长之间大于约50%。 膜的绝大多数单个层的光学厚度在聚合材料的重复单元中的光学厚度之和为约0.15μm至约0.228μm的范围内,并且第一和第二聚合物材料 在约300-400nm的波长范围内,折射率彼此不同,至少约0.03。 反射膜可用作太阳能解毒系统中的反射材料,作为室内和室外照明系统中的保护材料,作为医学成像,天文望远镜和显微镜领域的紫外镜或使用紫外线辐射的化学反应。

    Method of producing a lamellar polymeric body
    27.
    发明授权
    Method of producing a lamellar polymeric body 失效
    生产层状聚合体的方法

    公开(公告)号:US5316703A

    公开(公告)日:1994-05-31

    申请号:US5267

    申请日:1993-01-19

    申请人: Walter J. Schrenk

    发明人: Walter J. Schrenk

    摘要: A method for the production of a lamellar reflective polymeric body is provided and includes the steps of providing a first stream of a first heat plastified polymeric material and a second stream of a second heat plastified polymeric material, and encapsulating discrete portions of the first polymeric material in the second polymeric material by coextruding the polymeric materials to form a plurality of ribbon-like layers of the first polymeric material within a matrix of the second polymeric material to form the reflective polymeric body. The layers of the first polymeric material are arranged to have their major interfaces aligned substantially parallel to the major surfaces of the body such that at least 30% of light incident on the body is reflected. The ribbon-like layers may be further divided into a series of platelet-like layers to produce layers which are discontinuous in all major planar dimensions by passing the ribbon-like layers through a reciprocating feed plate or valve.

    摘要翻译: 提供了一种用于生产层状反射聚合物体的方法,包括以下步骤:提供第一热塑化聚合物材料的第一流和第二热塑化聚合物材料的第二料流,以及将第一聚合物材料的分立部分 在第二聚合物材料中,通过共挤出聚合材料以在第二聚合物材料的基质内形成第一聚合物材料的多个带状层以形成反射聚合物体。 第一聚合物材料的层被布置成使它们的主要界面基本平行于主体的主要表面排列,使得入射到身体上的至少30%的光被反射。 带状层可以进一步分成一系列类似薄片的层,以通过使带状层通过往复进给板或阀而产生在所有主要平面尺寸上不连续的层。