Abstract: The invention relates to a polymeric product (plastic or elastomeric) having domains of injected ingredients therein. A tire having precisely placed and oriented injected ingredients is described. The nature of the injected components, and their density, as well as their placement and orientation, are determined based on tire property enhancements desired. Fibers may be injected into the tread shoulder area of an uncured tire to provide abrasion resistance and traction in the cured tire. High tack rubbers or adhesives may be injected into the central tread region of a cured tire to enhance traction and grip.

Abstract: The invention relates to an apparatus and method for testing the properties of chemicals in a reaction flow stream. In the method, chemicals from the reaction flow stream are directed to the apparatus for testing the physical properties of the chemicals, which is an indication of the state of the chemical reaction. Data measured by the apparatus is stored in a computer, and the computer may be used to analyze the data and to control the reaction parameters based on the analysis of the data. The apparatus used for the analysis comprises a rheometer having an actuated shaft and a concentric container, wherein the shear properties of the material sampled in the apparatus are measured when the actuator shaft is oscillated within the container. Various unique configurations of the apparatus are described.

Abstract: An extensional rheometer comprises a drive shaft connected to an armature, wherein the armature is further connected to a torque shaft, and two rotatable drums are mounted in the armature. One end of a sample is connected to each drum, and the drums are rotated, stretching the sample until the sample breaks. The torque in the apparatus caused by the stretching of the sample is measured. Environmental control may be provided for testing samples under different conditions.