Abstract: A Digital Rights Management (DRM) system is provided that reduces time for a move transaction using DTCP-IP when a copy is moved back or checked back in to an originating Personal Video Recorder (PVR). During a DTCP MOVE transaction, instead of transferring the full asset in a check back in operation to the PVR, a unique and abbreviated representation of the original copy of the asset would be made for the transfer. This abbreviated representation takes the form of a hash constructed from a hashing function which uses characteristics of the asset as inputs. This hash will have to be a unique and near guaranteed indicator of the original content, to a high probability, so that the copy control system could live up to the spirit of the DTCP spec and the DLNA interoperability guidelines.

Abstract: The invention describes processes to prepare levulinic acid, formic acid and/or hydroxymethyl furfural from various biomass materials.

Abstract: The invention describes processes to convert biomass char, such as levulinic acid process char, into useful products.

Abstract: A method for producing a product that comprises glycerol ketal of ethyl levulinate or propylene glycol ketal of ethyl levulinate comprises reacting either glycerol or propylene glycol with ethyl levulinate in the presence of a homogenous or heterogeneous catalyst system in a reactor system. The ethyl levulinate and either glycerol or propylene glycol are heated to remove water, polyol, and excess ethyl levulinate. The excess ethyl levulinate and polyol is recycled back to the reactor. The product is distilled in a specific fashion and optionally treated by means of a stabilizing agent or acid species removal bed, to obtain a composition comprising glycerol ketal of ethyl levulinate or propylene glycol ketal of ethyl levulinate wherein the composition comprises less than or equal to about 2 wt % contaminants.

Abstract: The invention describes processes to selectively remove or reduce the mineral acid content substantially from compositions comprising a solvent and levulinic acid, wherein the levulinic acid was derived from the reaction between various biomass materials and a mineral acid or an organic acid catalyst.

Abstract: A method and system is provided for efficient interruptible transfer of protected media assets. The method of asset transfer uses a segmented asset transfer paradigm which makes possible the implementation of such features as “watch as you transfer” and “offsetted resumption of interrupted transfers”. Implementation strategies of these features with support for segmented and contiguous media assets are also disclosed.

Abstract: The invention describes methods of preparation and compositions of plasticizers. The plasticizers include at least 2 alkyl ketal ester moieties and have a molecular weight of greater than 300. In one aspect, the alkyl ketal ester moieties are levulinic ester ketals. Certain compositions contain at least one of an antioxidant, a UV stabilizer, a thermal stabilizer or mixtures thereof, present in the composition from about 0.01 to about 5.0 percent by weight of the total composition.

Abstract: The invention describes processes to prepare levulinic acid, formic acid and/or hydroxymethyl furfural from various biomass materials.

Abstract: A method is provided for adding extended content data during data stream acquisition. The method includes receiving a request for a transition from a first data stream to a second data stream within a transitioning time period. The method also includes determining whether a timing of the transition is sufficient for insertion of at least a first portion of extended content data during the transition. The method also includes selecting the first portion of the extended content data as insertion content if the timing of the transition is sufficient for insertion of the first portion of the extended content data. The method also includes selecting a second portion of the extended content data as the insertion content if the timing is insufficient for insertion of the first portion of the extended content. The method also includes causing the insertion content to be presented to a user during the transition.

Abstract: The invention describes processes to prepare levulinic acid, formic acid and/or hydroxymethyl furfural from various biomass materials.

Abstract: Disclosed herein is a polyhydroxy ketal adduct obtained by the esterification of a hydrocarbon polyol by at least 1.5 equivalents of a ketocarboxy to produce an intermediate ketocarboxylic ester. The intermediate polyketocarboxylic ester is then ketalized to produce the polyhydroxyketal adduct, which can be used to provide a polymeric composition.

Abstract: A device is provided for use with extended content data on a first data stream and second content data on a second data stream. The device includes a processing portion, an acquisition portion and a buffer. The acquisition portion is in communication with the processing portion. The acquisition portion can acquire the first data stream, can transition to the second data stream to receive the second content data and can provide the second content data to the processing portion. The buffer can receive the extended content data. The processing portion can instruct the acquisition portion to transition from the first data stream to the second data stream to receive the second content data. The buffer can further provide the extended content data to the processing portion based on the acquisition portion transitioning from the first data stream to the second data stream. The processing portion can further process the extended content data portion as received from the buffer.

Abstract: A method for the manufacture of 1,8-octanedioic acid comprises: reacting gamma-valerolactone with an alcohol in the presence of an acid or a base catalyst to provide an alkyl pentenoate, converting the alkyl pentenoate in the presence of a metathesis initiator to provide the dialkyl octenedioate, reacting the dialkyl octenedioate with hydrogen in the presence of a hydrogenation catalyst to provide a dialkyl 1,8-octanedioate and hydrolyzing the dialkyl 1,8-octanedioate to provide the 1,8-octanedioic acid.

Abstract: A ketal amide has a structure represented by formula (I): wherein R is hydrogen or C1-8 alkyl; R1 is substituted or unsubstituted, saturated or unsaturated C1-36 alkyl, or an alkylene oxide of the formula (CnH2nO)pCnH2nORa wherein n is 1-4, p is 1-1000 and Ra is H or CnH2n+1 wherein n is 1 to 4, R2 is hydrogen or C1-3 alkyl, each R3, R4, and R5 is independently hydrogen or C1-6 alkyl, R6 is hydrogen or C1-6 alkyl, R7 is C1-6 alkyl substituted with 1-4 hydroxyl groups, a is 0-3, and b is 0-1. Methods to prepare the ketal amide and compositions containing the ketal amide are also disclosed.

Abstract: A crude composition comprising a ketocarboxylic acid such as levulinic acid, derived from biomass in an aqueous phase comprising impurities, can be efficiently converted in high yield to the corresponding dicarboxylic acid, such as succinic acid, which can be purified and dried.

Abstract: Ketocarboxylic acids such as levulinic acid can be efficiently purified in high yield by esterification with a hydrocarbon polyol to the corresponding polyketocarboxylic ester, which can be readily purified, for example recrystallized. After purification, the ketocarboxylic ester can be hydrolyzed to provide pure ketocarboxylic acid, or a salt thereof, after removal of the esterifying hydrocarbon polyol, or used for other synthetic transformations. Advantageously, the polyketocarboxylic esters, ketocarboxylic acids, and salts thereof produced by this method are obtained in high purity.

Abstract: Disclosed herein is a polyketal adduct obtained by forming an ester between a hydrocarbon polyol and a ketocarboxylic acid to produce an intermediate polyketocarboxylic ester. The intermediate polyketocarboxylic ester can be purified via crystallization to achieve purities of greater than 99.0% and then ketalized to produce the polyketal adduct, which can be used in polymer compositions. The polyketal adduct I is obtained at high purity and at high yield.

Abstract: Disclosed herein is a polyhydroxy ketal adduct obtained by the esterification of a hydrocarbon polyol by at least 1.5 equivalents of a ketocarboxy to produce an intermediate ketocarboxylic ester. The intermediate polyketocarboxylic ester is then ketalized to produce the polyhydroxyketal adduct, which can be used to provide a polymeric composition.

Abstract: Disclosed herein is a crosslinkable polyketal ester obtained by the esterification of a hydrocarbon polyol by at least 2 equivalents of a ketocarboxylic acid to produce an intermediate polyketocarboxylic ester. The intermediate polyketocarboxylic ester is then ketalized to produce the crosslinkable polyketal ester, which can then be used in compositions or crosslinked.

Abstract: The invention describes processes to prepare levulinic acid, formic acid and/or hydroxymethyl furfural from various biomass materials.