摘要:
A thermoplastic composite material may be formed by supplying the thermoplastic material to the opposite surfaces of the fabric material and by then passing the resultant material through the spaces between progressive pairs of rollers. The rollers in each progressive pair have a decreased spacing relative to the rollers in the previous pair so as to squeeze the thermoplastic material into the interstices between the fabric threads without compressing the fabric material. The resultant material may also be moved in a tortuous path, such as formed by a pair of rollers defining an S-configuration relative to the resultant material, to engage the opposite surfaces of the resultant material and squeeze air from the resultant material without compressing the fabric.
摘要:
A toner composition of resin, pigment, wax, and a component of the formula ##STR1## wherein n is a number of from about 30 to about 50 and m is a number of from about 3 to about 16.
摘要:
A process for the preparation of halogenated chalcogens, or halogenated chalcogenide alloys which comprises providing in solution pure esters of the desired chalcogen, and subsequently subjecting a mixture of the esters and a chalcogenide halide to a coreduction reaction.
摘要:
Disclosed is a polysilylene hole transporting compound for use in layered imaging members comprised of ##STR1## wherein R.sub.1,R.sub. 2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 are independently selected from the group consisting of alkyl, aryl, substituted alkyl, substituted aryl, and alkoxy; and n, m, and p are numbers that represent the percentage of the monomer unit in the total polymer compound.
摘要:
This invention is generally directed to an improved process for the preparation of selenium of high purity which comprises reacting selenious acid, selenium oxides, or mixtures thereof, with an alcohol, and subjecting the resulting selenium ester, subsequent to purification to a reduction reaction.
摘要:
An optical recording member is prepared by coating a thin layer of a colloidal dispersion, of minute particles of certain transition metals or their oxides in a polymeric binder, onto a substrate. The optical recording member may be made to achieve anti-reflecting conditions at the marking wavelength by making the substrate reflective and by using proper thickness for the dispersion layer.
摘要:
There is disclosed a method for the preparation of a homogeneous, physically stable colloidal elemental iron dispersion of colloidal iron particles having a size in the range of from about 10 Angstrom units to about 200 Angstrom units. The method comprises preparing a solution of a passive polymer in an inert solvent, and incrementally adding thereto an iron precursor, at a temperature at which the iron precursor will lose at least one ligand and become bound to the passive polymer and thermally decompose to produce elemental iron particles, the process being carried out in an inert atmosphere. Such dispersions may be used per se as catalysts, or may be used for the preparation of supported colloidal iron catalysts. The dispersions may also be used for the preparation of ablative optical recording media, and for the preparation of magnetic xerographic developer materials.
摘要:
A toner composition includes a thermoset resin, cross-linking agent, and optionally additives such as colorants. The thermally cross-linkable toner composition may be fixed, using standard fusing systems, to yield images that withstand rigorous processing conditions, such as, for example, the high temperatures reached in flexible packaging processes.
摘要:
Enclosed is a tool that is used to review and/or alter electronic documents each of which may have a different format. The mark-up tool is provided with a color-coded scheme to highlight where an electronic document is to be changed and to indicate the status of the change.
摘要:
Disclosed is an ink composition comprising water, a colorant, and a borate ester, said ink containing water in an amount of at least about 5 percent by weight and containing water in an amount of no more than about 50 percent by weight, wherein either (a) the ink also contains an amine compound, or (b) the borate ester is hydrolytically stable.