Abstract: A process and a system for depolymerizing plastic, such as waste polyester, into marketable monomers. A heterogeneous mixture of plastic particles, a solvent, and a catalyst are pumped continuously through a heating zone at a flow rate just high enough to maintain a particle speed great enough to keep the plastic particles in suspension. The temperature of the heterogeneous mixture is raised in the heating zone and maintained in a hold zone to complete depolymerization of the mixture into a homogeneous solution containing a liquefied plastic monomer. The homogeneous solution is cooled to solidify and precipitate the monomer. The precipitated monomer is separated from the solvent to be recycled. The solvent is recirculated to be reused as a constituent of the heterogeneous mixture.

Abstract: A continuous flow process and system for depolymerizing plastic. A heterogeneous mixture of solid plastic particles, a solvent, and a catalyst are pumped continuously through a heating zone at a flow rate resulting in a particle speed sufficient to keep the plastic particles in suspension. The heterogeneous mixture is heated in the heating zone and maintained in a hold zone to complete depolymerization of the mixture into a homogeneous solution containing a liquefied reaction product. The homogeneous solution is cooled to solidify and precipitate a solid reaction product. The solid reaction product is separated from the solvent to be recycled. Contaminants are removed from the solvent, and the solvent is recirculated for use as a constituent of the heterogeneous mixture.

Abstract: A continuous flow process and system for depolymerizing plastic. A heterogeneous mixture of solid plastic particles, a solvent, and a catalyst are pumped continuously through a heating zone at a flow rate resulting in a particle speed sufficient to keep the plastic particles in suspension. The heterogeneous mixture is heated in the heating zone and maintained in a hold zone to complete depolymerization of the mixture into a homogeneous solution containing a liquefied reaction product. The homogeneous solution is cooled to solidify and precipitate a solid reaction product. The solid reaction product is separated from the solvent to be recycled. Contaminants are removed from the solvent, and the solvent is recirculated for use as a constituent of the heterogeneous mixture.

Abstract: A process and a system for depolymerizing plastic, such as waste polyester, into marketable monomers. A heterogeneous mixture of plastic particles, a solvent, and a catalyst are pumped continuously through a heating zone at a flow rate just high enough to maintain a particle speed great enough to keep the plastic particles in suspension. The temperature of the heterogeneous mixture is raised in the heating zone and maintained in a hold zone to complete depolymerization of the mixture into a homogeneous solution containing a liquefied plastic monomer. The homogeneous solution is cooled to solidify and precipitate the monomer. The precipitated monomer is separated from the solvent to be recycled. The solvent is recirculated to be reused as a constituent of the heterogeneous mixture.

Abstract: A process and a system for continuously depolymerizing plastic is disclosed. The system may comprise a mixer for producing a heterogeneous reaction mixture comprising plastic particles and a solvent, a pump for transmitting the reaction mixture at a particle speed sufficient to maintain the plastic particles in suspension in the solvent, a heating apparatus for heating the reaction mixture to its reaction temperature, a hold tube for maintaining the reaction mixture at or above the reaction temperature to facilitate conversion into a homogeneous reaction solution, and a settling tank to allow a solid reaction product to precipitate from the homogeneous reaction solution once cooled.

Abstract: A process and a system for depolymerizing plastic, such as waste polyester, into marketable monomers. A heterogeneous mixture of plastic particles, a solvent, and a catalyst are pumped continuously through a heating zone at a flow rate just high enough to maintain a particle speed great enough to keep the plastic particles in suspension. The temperature of the heterogeneous mixture is raised in the heating zone and maintained in a hold zone to complete depolymerization of the mixture into a homogeneous solution containing a liquefied plastic monomer. The homogeneous solution is cooled to solidify and precipitate the monomer. The precipitated monomer is separated from the solvent to be recycled. The solvent is recirculated to be reused as a constituent of the heterogeneous mixture.

Abstract: A continuous flow process and system for depolymerizing plastic. A heterogeneous mixture of solid plastic particles, a solvent, and a catalyst are pumped continuously through a heating zone at a flow rate resulting in a particle speed sufficient to keep the plastic particles in suspension. The heterogeneous mixture is heated in the heating zone and maintained in a hold zone to complete depolymerization of the mixture into a homogeneous solution containing a liquefied reaction product. The homogeneous solution is cooled to solidify and precipitate a solid reaction product. The solid reaction product is separated from the solvent to be recycled. Contaminants are removed from the solvent, and the solvent is recirculated for use as a constituent of the heterogeneous mixture.

Abstract: A parking sensor and observation system for a vehicle, including: an elongated housing, wherein the housing has a front side with first to third openings and a back side with an elongated opening, the first and third openings are adjacent to opposite ends of the housing, the second opening is located at a center portion of the housing; a first parking sensor disposed within the housing and having its proximity detector disposed in the first opening; a second parking sensor disposed within the housing and having its proximity detector disposed in the third opening; a camera disposed within the housing and having its lens disposed in the second opening; and a backing plate disposed at the back side of the housing to seal the elongated opening.

Abstract: A mounting bracket for a vehicle backup camera, including: a lengthwise portion; and a camera mounting portion connected to the lengthwise portion, the camera mounting portion including a protrusion, the protrusion forming a gap between the camera mounting portion and the lengthwise portion so that the lengthwise portion can be mounted behind a license plate of a vehicle and a camera can be suspended by the camera mounting portion for viewing a rear of the vehicle when the vehicle is in reverse.

Abstract: A parking sensor and observation system for a vehicle, including: an elongated housing, wherein the housing has a front side with first to third openings and a back side with an elongated opening, the first and third openings are adjacent to opposite ends of the housing, the second opening is located at a center portion of the housing; a first parking sensor disposed within the housing and having its proximity detector disposed in the first opening; a second parking sensor disposed within the housing and having its proximity detector disposed in the third opening; a camera disposed within the housing and having its lens disposed in the second opening; and a backing plate disposed at the back side of the housing to seal the elongated opening.

Abstract: A mounting bracket for a vehicle backup camera, including: a lengthwise portion; and a camera mounting portion connected to the lengthwise portion, the camera mounting portion including a protrusion, the protrusion forming a gap between the camera mounting portion and the lengthwise portion so that the lengthwise portion can be mounted behind a license plate of a vehicle and a camera can be suspended by the camera mounting portion for viewing a rear of the vehicle when the vehicle is in reverse.

Abstract: The invention provides cells, compositions and methods based on the use of stromal cells to support the proliferation of undifferentiated embryonic or adult stem cells in vitro. The stem cells produced in the method are useful in providing a source of uncommitted or differentiated and functional cells for research, transplantation and development of tissue engineered products for the treatment of human diseases and traumatic tissue injury repair in any tissue or organ site within the body.