Abstract: This invention relates to a continuous process for production of poly(trimethylene terephthalate), wherein gaseous 1,3-propanediol by product resulting from the process is condensed in a condenser, and a portion of the condensed by-product is recycled to the condenser while anther portion is recycled back into the process.

Abstract: This invention relates to a continuous process for production of poly(trimethylene terephthalate), wherein gaseous 1,3-propanediol by product resulting from the process is condensed in a condenser, and a portion of the condensed by-product is recycled back into the process.

Abstract: This invention relates to a continuous process for production of poly(trimethylene terephthalate), wherein gaseous 1,3-propanediol by-product resulting from the process is condensed in a condenser, the total amount of any trimethylene terephthalate cyclic dimer and poly(trimethylene terephthalate) in the condensed by-product 1,3-propanediol is adjusted, and a portion of the condensed by-product is recycled to the condenser while another portion is recycled back into the process.

Abstract: Disclosed herein is an apparatus for forming a drainage conduit including a body portion, a level indicator affixed to the body portion operable for indicating a pitch of the body portion, and a handle affixed to the body portion, wherein the handle is operable to adjust the pitch of the body portion. The body portion of the apparatus includes a lower portion including a first end and a second end and a front portion affixed to the first end of the lower portion, wherein the front portion may have a width greater than the lower portion.

Abstract: The present invention provides a condensation inhibition system for structural waterproofing. In accordance with one embodiment of the present invention, a waterproofing system is provided within a dwelling having a wall and a foundation. The wall having a first surface for defining an interior of the dwelling and an exterior in communication with graded soil. The waterproofing system further including a waterproofing panel having a front vapor diffusion retarder portion, a back vapor diffusion retarder portion, and an insulator carried between said front portion and said back portion. Additionally, a collection channel is provided for collecting water entering into the dwelling from the exterior.

Abstract: The invention discloses a hydrogenation process for removing impurities and controlling acid for use in downstream processing of biochemically-derived 1,3-propanediol. Preferably, the biochemically-derived 1,3-propanediol, before the contacting, has an initial color and, after the contracting, has a color that is lower than the initial color.

Abstract: The present invention provides a model for assessing performance of a dynamic collaborative relationship. The present invention provides a method of modeling dynamic relationships by inputting data related to the collaborative relationship into a model, which comprises a plurality of components key to the collaborative relationship. Each of these components is interrelated with the model, and the model generates a value indicative of a condition or performance of the relationship. The relationship value can be analyzed by comparison with baseline values correlated to exemplary collaborative relationships. The present invention further provides methods of developing a model capable of assessing dynamic collaborative relationships.

Abstract: A process for purifying 1,3-propanediol from the fermentation broth of a cultured E. coli that has been bioengineered to synthesize 1,3-propanediol from sugar is provided. The basic process entails filtration, ion exchange and distillation of the fermentation broth product stream, preferably including chemical reduction of the product during the distillation procedure. Also provided are highly purified compositions of 1,3-propanediol.