Abstract: The present disclosure relates to methods for treating hair with lactones. The lactones form a covalent thio-ester bond with free thiols groups on chemically treated hair, and thereby impart a “repairing” or “conditioning” effect to the hair, for example, by making the hair more hydrophobic. Typically, after hair has been treated with a composition comprising one or more reducing agents that reduce disulfide bonds of hair to free thiols, a composition comprising one or more lactones is applied to the hair and the one or more lactones react with the free thiols to form a covalent thio-ester bond. Treatment with the lactones prevents reversion of the repaired bonds to their free thiol state after a single application.

Abstract: Disclosed are compositions, systems and methods for treating keratinous fibers such as hair. The compositions and systems comprise an oxazoline functionalized polymer and a polyamine compound. The compositions and methods are employed to improve the quality of the keratinous fibers.

Abstract: Disclosed are compositions, systems and methods for treating keratinous fibers such as hair. The compositions and systems comprise an oxazoline functionalized polymer and a carboxyl group-containing polymer. The compositions and methods are employed to improve the quality of the keratinous fibers.

Abstract: Disclosed are compositions, systems and methods for treating keratinous fibers such as hair. The compositions and systems comprise an oxazoline functionalized polymer and an amino silicone compound. The compositions and methods are employed to improve the quality of the keratinous fibers.

Abstract: Disclosed are compositions, systems and methods for treating keratinous fibers such as hair. The compositions and systems comprise an oxazoline functionalized polymer and a compound having at least one nucleophilic site capable of reacting with the at least one oxazoline functionalized compound and chosen from hydroxyl group-containing compounds, thiol group-containing compounds, and a mixture thereof. The compositions and methods are employed to improve the quality of the keratinous fibers.

Abstract: Disclosed are compositions, systems and methods for treating keratinous fibers such as hair. The compositions and systems comprise an oxazoline functionalized polymer and a polyamine compound. The compositions and methods are employed to improve the quality of the keratinous fibers.

Abstract: Disclosed are compositions, systems and methods for treating keratinous fibers such as hair. The compositions and systems comprise an oxazoline functionalized polymer and a polyamine compound. The compositions and methods are employed to improve the quality of the keratinous fibers.

Abstract: Disclosed are compositions, systems and methods for treating keratinous fibers such as hair. The compositions and systems comprise an oxazoline functionalized polymer and a carboxyl group-containing polymer. The compositions and methods are employed to improve the quality of the keratinous fibers.

Abstract: Disclosed are compositions, systems and methods for treating keratinous fibers such as hair. The compositions and systems comprise an oxazoline functionalized polymer and an amino silicone compound. The compositions and methods are employed to improve the quality of the keratinous fibers.

Abstract: Disclosed are compositions, systems and methods for treating keratinous fibers such as hair. The compositions and systems comprise an oxazoline functionalized polymer and a compound having at least one nucleophilic site capable of reacting with the at least one oxazoline functionalized compound and chosen from hydroxyl group-containing compounds, thiol group-containing compounds, and a mixture thereof. The compositions and methods are employed to improve the quality of the keratinous fibers.

Abstract: The present disclosure relates to methods for treating hair with lactones. The lactones form a covalent thio-ester bond with free thiols groups on chemically treated hair, and thereby impart a “repairing” or “conditioning” effect to the hair, for example, by making the hair more hydrophobic. Typically, after hair has been treated with a composition comprising one or more reducing agents that reduce disulfide bonds of hair to free thiols, a composition comprising one or more lactones is applied to the hair and the one or more lactones react with the free thiols to form a covalent thio-ester bond. Treatment with the lactones prevents reversion of the repaired bonds to their free thiol state after a single application.

Abstract: Embodiments of the present invention provide a method of using a multi-input sorting machine for sorting mail in delivery point order.

Abstract: Mail reorientation apparatus which transfers horizontally oriented mail stack in an input tray to a vertical orientation in an output tray. The input tray is brought to a rotating station where a plate is brought down on top of the mail stack and a plurality of pusher rods are extended through apertures in the bottom of the input tray to contact the bottom of the mail stack. The rotation process orients the mail stack to the desired vertical orientation and the rods and plate are simultaneously moved to eject the mail from the input tray to the output tray.

Abstract: The present invention provides a weight redistribution system including an axle carrier slideably engaged along a length of a trailer frame, wherein the axle carrier including a threaded fixture and the trailer frame includes parallel longitudinal beams having a plurality of equally spaced openings; an axle carrier positioning means including a motor means and a threaded shaft mounted to the trailer frame being in rotational engagement with the threaded fixture of the axle carrier; a weight monitoring system integrated into the axle carrier; an axle carrier locking means including at least one extendable pin mounted on the axle carrier for locking engagement into one of the equally spaced openings in the longitudinal beams; and a control interface for displaying data from the weight monitoring system, actuating the axle carrier positioning means, and actuating the axle carrier locking means.

Abstract: A two-pass mail sorting method for sorting mail into delivery point order. In one embodiment, the method includes the step of forming a delivery point group comprising delivery points that are temporarily or permanently on hold. In another embodiment, the method includes the step of processing saturation mail only after performing the first-pass mail sort. In another embodiment, the method includes partitioning a mail sorting system comprising N outputs into X virtual mail sorting systems having N/X outputs.

Abstract: The mail sorting systems and methods of the invention can be used to provide a mail carrier with a batch of mail that is arranged in delivery point order and separated by delivery point. Advantageously, the systems and methods employ an expandable, transportable container having a number of expandable compartments. Each expandable compartment holds the mail for a single delivery point.