摘要:
An annular attachment device is provided that is adapted to engage the threads of a threaded container and provide a connection point for the threaded container. In such an arrangement, the threads of a container may be placed through a center aperture in the attachment device. By threading a lid onto the container, the annular attachment device may be trapped between the container and its lid. An aperture or hook on an outer surface of the annular attachment device allows the device and a supported container to be tethered to a desired location.
摘要:
A method for recovering crystalline 2,6-dimethylnaphthalene comprising crystallizing in a scraped-wall crystallizer apparatus at crystallization temperature T, a mixture of low melting components, LM, having melting points of 70.degree. F. and below, and high melting components (HM), including 2,6-dimethylnaphthalene, having melting points above 70.degree. F., such that: ##EQU1## where HM is the total weight percent of high melting components, including 2,6-dimethylnaphthalene, in the mixture, and LM is the total weight percent of low melting components in the mixture, and where T is the temperature of the crystallization in degrees Fahrenheit, and where A is at least 1.0.
摘要:
The invention provides decorative, inlaid sheet materials which incorporate a matrix layer of discrete, low aspect ratio particles embedded in a resinous coating. The use of printed patterns which are visible beneath the adhesive matrix containing the particles constitutes a characteristic of the invention. The sheet materials of this invention are real through-patterned inlaids which do not lose their pattern due to wear in use, and which offer unique design advantages and flexibility, as well as superior properties.
摘要:
A method for the highly selective production of 2,6-methylethylnaphthalene involving the use of a specific acid catalyst and a highly regeospecific ethylating agent.
摘要:
A process is disclosed for producing an alpha-, beta-ethylenically unsaturated monocarboxylic acid compound which comprises the aldol-type condensation of a saturated aliphatic monocarboxylic acid compound under vapor phase conditions in the presence of a hydrocarbon of 6 to 12 carbon atoms and a solid catalyst.
摘要:
Different print quality modes in a printer such as a color inkjet printer invoke different print rendering options for a particular object to be printed. In an exemplary embodiment, a printer control automatically invokes an error diffusion haltoning technique for photo images whenever high quality mode is designated, and automatically invokes a dither haltoning technique for photo images whenever a normal or fast print mode is designated.
摘要:
A method for recovering crystalline 2,6-dimethylnaphthalene comprising crystallizing in a scraped-wall crystallizer apparatus at crystallization temperature T, a mixture of low melting components, LM, having melting points of 70.degree. F. and below, and high melting components (HM), including 2,6-dimethylnaphthalene, having melting points above 70.degree. F, such that: ##EQU1## where HM is the total weight percent of high melting components, including 2,6-dimethylnaphthalene, in the mixture, and LM is the total weight percent of low melting components in the mixture, and where T is the temperature of the crystallization in degrees Fahrenheit, and where A is at least 1.0.
摘要:
The invention provides decorative, inlaid sheet materials which incorporate one or more selectively deposited matrix layers of discrete, low aspect ratio particles embedded in a resinous coating. The use of printed patterns which are visible beneath the adhesive matrix containing the particles constitutes one embodiment of the invention. The sheet materials of this invention are real through-patterned inlaids which do not lose their pattern due to wear in use, and which offer unique design advantages and flexibility, as well as superior properties.
摘要:
A method and a system for extending useful life of a basic catalyst are disclosed. The basic catalyst comprises a particulate, porous, siliceous catalyst support and an alkali metal in the +1 oxidation state on the catalyst support surface. The catalyst is suitable for the synthesis of an alpha, beta-ethylenically unsaturated carboxylic acid by condensation of a saturated carboxylic acid with formaldehyde. The method of the present invention contemplates providing a reactor, or a series of reactors, containing the basic catalyst and a confined source of the alkali metal associated with a suitable carrier, upstream of the reactor or reactors. A feed stream to the reactor is passed first through the confined source and thereafter through the reactor while reaction conditions for the condensation reaction are maintained within the reactor. The temperature of the feed stream passing through the confined source can be modulated to control release of the alkali metal from the carrier. Alkali metal released from the carrier is entrained into the feed stream passing through the confined source and is deposited onto the support in the reactor as the feed stream is passed through the reactor. Feed stream flow through the reactor or reactors can be reversed and/or interchanged as long as the confined alkali metal source remains upstream of one or more of the reactors, i.e., the upstream-most of the reactors in a series of staged reactors can function as the confined alkali metal source as well.