82 results about "Plastic crystal" patented technology

Unique thermoplastic (polypropylene, specifically) monofilament and / or tape fibers and yarns that exhibit heretofore unattained physical properties are provided. Such fibers are basically manufactured through the extrusion of thermoplastic resins that include a certain class of nucleating agent therein, and are able to be drawn at high ratios with such nucleating agents present, that the tenacity and modulus strength are much higher than other previously produced thermoplastic fibers (particularly those produced under commercial conditions), particularly those that also simultaneously exhibit extremely low shrinkage rates. Thus, such fibers require the presence of certain compounds that quickly and effectively provide rigidity to the target thermoplastic (for example, polypropylene), particularly after heat-setting. Generally, these compounds include any structure that nucleates polymer crystals within the target thermoplastic after exposure to sufficient heat to melt the initial pelletized polymer and allowing such an oriented polymer to cool. The compounds must nucleate polymer crystals at a higher temperature than the target thermoplastic without the nucleating agent during cooling. In such a manner, the “rigidifying” nucleator compounds provide nucleation sites for thermoplastic crystal growth. The preferred “rigidifying” compounds include dibenzylidene sorbitol based compounds, as well as less preferred compounds, such as [2.2.1]heptane-bicyclodicarboxylic acid, otherwise known as HPN-68, sodium benzoate, talc, certain sodium and lithium phosphate salts [such as sodium 2,2′-methylene-bis-(4,6-di-tert-butylphenyl)phosphate, otherwise known as NA-11]. Specific methods of manufacture of such inventive thermoplastic fibers, as well as fabric articles made therefrom, are also encompassed within this invention.

An electric fireplace having multi-function flame includes a housing, a projection screen, a plastic screen, plastic crystals, a first illuminating device, a flame image plate, a reflection assembly, and a second illuminating device. The first illuminating device can shoot a single color or two colors or a combination of more than two colors of light. The second illuminating device includes a plurality of second lights disposed on a second circuit board. Each of the second lights includes at least two different chips. The second illuminating device can shoot a single color or two colors or a combination of more than two colors of light. The present invention can generate single or multi-color flame to achieve a multi-function purpose. The change effect of the movement and color of the flame can be more perfect and realistic and appreciation.