摘要:
Novel addition products of isocyanates with oxyalkylene-substituted aminophenol compounds as intermediates for the production of urethane-substituted xanthene colorants, particularly triphenylmethane derivatives such as rhodamines, are provided. The xanthene colorants exhibit improved wax and/or oil solubility and high purity. The urethane-substituted xanthene colorant features very good wax and/or oil solubility, and is believed to be relatively nontoxic. A method for producing this novel colorant is also provided.
摘要:
A method for tagging one or a mixture of natural or synthetic materials comprising contacting the same with one or a mixture of tagging compounds containing one or more non-ionic luminophore moieties attached to at least one poly(oxyalkylene) moiety by means of a linking moiety; wherein said tagging compound has substantial absorbance within the range of from about 300 to about 400 nm and reemits substantial visible light, said contacting effecting at least a temporary association between said material and said compound wherein said compound is present in an amount between about 0.0001 and about 10 percent by weight of said material.
摘要:
In accordance with the present invention, there is provided a substituted cyclohexane-1,2-dicarboxylic anhydride (CHDA) having the structural formula: ##STR1##
摘要:
Apparatus, systems and methods for mobile spinal fixation rod systems. A central housing may be formed in part from the enlarged end of a connection rod and may house a flexible insert in a cavity thereof. The enlarged head of a flexion rod may be disposed in the flexible insert and retained in the cavity by a coupler completing the central housing. A rod system of the present invention is capable of deflection, distraction and compression to preserve motion while providing fixation to the attached vertebrae.
摘要:
A transverse connector system for coupling elongate elements to each other in a spinal fixation system. An upper arm member and a lower arm member are connected by a washer and locking bolt to form a transverse plate. The distal ends of the upper arm member and the lower arm member each include a swivel rod connector and may be attached to a locking rod connector using a locking bolt to secure an elongate fixation element therein. The upper arm member and lower arm member are laterally adjustable and pivotably adjustable with respect to one another due to the washer and slot connection, and thus accommodate divergences and convergences in the attached rods.
摘要:
This invention relates to new compositions and methods for cleaning textile substrates, especially carpet and upholstery fabrics. More particularly, this invention relates to liquid compositions that contain absorbent particles in a flowable fluid dispersion, which dries to a soil ladened powder, that can be removed by vacuuming, brushing, and/or laundering methods. The composition includes dispersion stabilizing additives such that the composition is presented as a stable dispersion or as a composition that may be easily redispersed prior to application.
摘要:
Novel addition products of isocyanates with oxyalkylene-substituted aminophenol compounds as intermediates for the production of urethane-substituted xanthene colorants, particularly triphenylmethane derivatives such as rhodarnines, are provided. The xanthene colorants exhibit improved wax and/or oil solubility and high purity. The urethane-substituted xanthene, colorant features very good wax and/or oil solubility, and is believed to be relatively nontoxic. A method for producing this novel colorant is also provided.
摘要:
Novel addition products of isocyanates with oxyalkylene-substituted aminophenol compounds as intermediates for the production of urethane-substituted xanthene colorants, particularly triphenylmethane derivatives such as rhodamines, are provided. The xanthene colorants exhibit improved wax and/or oil solubility and high purity. The urethane-substituted xanthene colorant features very good wax and/or oil solubility, and is believed to be relatively nontoxic. A method for producing this novel colorant is also provided.
摘要:
Thiophene based colorants useful for coloring thermoset resins such as polyurethanes being the formula; ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are selected from halogen, carboxylic acid, alkanoyl, aryloyl, carbocyclic forming polymethylene chains, alkyl, aryl, cyano, thioalkyl, dithioalkyl, thioaryl, dithioaryl, thiocyano, carboxyalkyl, carboxyaryl, amidoalkyl, amidodialkyl, amidoaryl, amidodiaryl, oxyalkyl, thioamidoalkyl, thioamidodialkyl, or hydrogen when an adjacent group is isobutyryl; R.sub.4, R.sub.5, and R.sub.7 are selected from hydrogen alkyl, oxyalkyl, sulfonamidoalkyl, sulfonamidoaryl, amidoalkyl, amidodialkyl, amidoaryl, amidodiaryl, halogen, thioalkyl and thioaryl; and R.sub.8 and R.sub.9 are selected from polyalkylene oxide, copolymers of polyalkylene oxides, and hydroxyalkylenes.
摘要:
A colored thermoplastic resin composition is provided which comprises a thermoplastic resin and a colorant in the form of an alkyleneoxy-substituted chromophore group provided in said thermoplastic resin in a minor amount sufficient to provide coloration to said thermoplastic resin. A process for preparing colored thermoplastic resins is also provided.