摘要:
A method for producing a polymer mirror by continuously manufacturing a polymeric substrate, applying a reflective layer or layers which may be a polymer whose surface has been metalized so as to make it reflective or a multi-layer film wherein the combined refractive indices of the layers give the quality of a mirror surface. An optional coating may be applied to a surface of the reflective layer to promote adhesion to the underlying substrate. A composite is formed by heat lamination using a calendar roll assembly to fuse the layers into a rigid final article having a reflective surface having the character of a silver mirror, a highly reflective mirror, or a colored mirror.
摘要:
A plastic sheet product having a matte finish comprises a core layer of a thermoplastic polymer and at least one layer of a capstock composition which overlies, and is bonded to, at least one face of the core layer. The capstock composition comprises the same or different thermoplastic polymer and contains a plurality of discrete particles immiscible with and dispersed in the thermoplastic polymer of the capstock composition. The sheet product may be prepared by the co-extrusion of the thermoplastic polymer and the capstock composition, and in a particular embodiment, such co-extrusion may be conducted by means of a feedblock. In a particular embodiment, the thermoplastic polymer of the core layer and that of the capstock composition may be the same, such as in the instance of a methylmethacrylate-methylacrylate copolymer. Sheet products prepared in accordance with the invention exhibit improved post-processability and ease of surface maintenance, and may be fabricated into a variety of products including light diffusers, projection screens, and the like.
摘要:
A new and distinct cultivar of Pecan tree, Carya illinoinensis, which is characterized by a early nut production, early nut maturity, scab fungus resistance, and high percentage kernel.
摘要:
A pecan tree distinguished by the following unique combination of characteristics: Precociousness and prolificacy, early nut maturity, large nut size, a nut with a high kernel percentage, good kernel color, lack of speckling and a good resistance to leaf scab.
摘要:
A pecan tree distinguished by the following unique combination of characteristics: Precociousness, moderately early nut maturity, large nut size, a nut with a high percentage kernel, exceptional kernel quality, moderate resistance to scab and good resistance to powdery mildew and to black pecan aphid.
摘要:
A new and distinct cultivar of Pecan tree, Carya illinoinensis, which is characterized by a early nut production, early nut maturity, scab fungus resistance, and high percentage kernel.
摘要:
A process for producing biodiesel has been invented by first extracting lipids from the sludges generated during primary and/or biological treatment of municipal, agricultural, and industrial wastewaters using primary, secondary, and tertiary treatments followed by the transesterification of the extracted lipids using transesterification conversion into alcohol-based esters. The resulting products from this process include biodiesel, glycerol, lipid-free proteins, various other useful chemicals and an aqueous-based substrate well suited for optimized digestion within subsequent biological digestion (either aerobic or anaerobic). The lipids extracted from the sludges containing high levels of microorganisms are phospholipids which can also be directly used as lecithin. The extraction of the lipids from the sludges will be performed using chemical extraction techniques with the transesterification of the extracted lipids accomplished using basic, acidic, and/or a combination of the two transesterification techniques.