摘要:
Metal complexes, addition polymerisation catalysts containing the same and olefin polymerisation processes using the same comprising a boratabenzene group or divalent derivative thereof are disclosed.
摘要:
The invention provides a treated textile material having a finish applied to at least a portion of the surface thereof. The finish comprises at least one particulate component which exhibits a positive surface charge when suspended in an aqueous medium. The invention further provides a process for producing a treated textile material comprising the steps of (a) providing a textile material having a surface, (b) providing a suspension comprising a medium and at least one particulate component, the particulate component exhibiting a positive surface charge when suspended in an aqueous medium, (c) applying the suspension to at least a portion of the surface of the textile material, and (d) heating the textile material to remove the medium from the textile material and produce a finish comprising the particulate component on the surface of the textile material.
摘要:
The present disclosure relates to a protective garment system having two primary components. The first component, which serves as the outer layer of the garment, comprises a textile substrate that has been treated on one side with a hydrophobic composition and has been treated on the opposite side with an oleophobic composition. This combination is well-suited for protection against a variety of organic, oily type liquids (such as chemical warfare agents). The second component, which is a composite structure that serves as the inner layer of the garment, contains a core of activated carbon positioned between layers of adhesive and textile substrate.
摘要:
The present disclosure relates to a protective garment system having two primary components. The first component, which serves as the outer layer of the garment, comprises a textile substrate that has been treated on one side with a hydrophobic composition and has been treated on the opposite side with an oleophobic composition. This combination is well-suited for protection against a variety of organic, oily type liquids (such as chemical warfare agents). The second component, which is a composite structure that serves as the inner layer of the garment, contains a core of activated carbon positioned between layers of adhesive and textile substrate.
摘要:
Certain chemical compositions provide superior repellency, durability, and soil (stain) release properties when applied to a textile or fabric. Compositions may contain a fluorochemical-containing soil release component or a crosslinking component, or both, and also may contain an antimicrobial agent. In some applications, the crosslinking component may be hydrophobic, so as to be generally not compatible with aqueous environments. Compositions having less than about 6 weight percent of a fluorochemical-containing soil release component, based upon the weight of the treating composition, may be employed in some applications.
摘要:
Processes for preparing aluminoxane comprising: bringing into contact under reaction conditions in an inert atmosphere a liquid containing reaction mixture comprising: (i) a water in oil emulsion comprising water and at least one emulsifier in a first hydrocarbon solvent; and (ii) an organoaluminum compound capable of forming aluminoxane in a second hydrocarbon solvent; provided that the aluminoxane produced by the reaction is present in solution under the reaction conditions. In a preferred embodiment a support carrier for the aluminoxane: (i) is present during the contact step or (ii) is introduced following contact. A polymerization catalyst can be prepared wherein the support carrier is SiO2 and a Group 3 to Group 10 metal containing single site complex is mixed with the aluminoxane. Catalysts suitable for polymerizing an olefin such as ethylene or copolymerizing an olefin with at least one C 3 to C 2o alpha-olefin can be produced.
摘要:
The present disclosure is directed to cellulosic textiles treated with h-PEI derivatives, such derivatives possessing the general structure shown below: (R) x - h-PEI - (A) y where R is a non-hyperbranched hydrocarbon group (for example, such as alkyl, alkenyl, arylalkyl, and arylalkenyl groups, where the number of carbon atoms in the linear portion of the hydrocarbon is between 5 and 30 carbon atoms), where x is a number from 1 to about 10,000 (depending on the M n of the h-PEI), where h-PEI is a hyperbranched polyethyleneimine, where A is a small organic "capping" compound having from 1 to 4 carbon atoms, where y is a number from 0 to 10,000, and wherein R is present in an approximate amount of between about 20% and about 75% by weight of the h-PEI derviative. The chemical treatment imparts durable colorfastness, softness, wrinkle resistance, and reduced drying time to substrates treated therewith.
摘要:
The invention relates to a stain release and repellant fabric conditioner comprising a repel type fluorochemical and/or siloxane, a release type fluorochemical and/or siloxane, and a performance extender.
摘要:
The present disclosure relates to a textile treatment and the treated textile, wherein one side of the textile is treated to have hydrophobic characteristics and the other side is treated to have both hydrophobic and oleophobic characteristics. The present treatment is wash-durable and breathable. The textile treatment is effective at repelling aqueous liquids (such as rain) and at preventing the penetration of oily liquids (such as chemical warfare agents) through the textile.
摘要:
Certain compositions provide excellent repellency, durability, and soil/stain release properties when applied to a textile or fabric. A textile substrate for fire resistant garments and the like which provides good repellency and stain/soil release is disclosed. Such compositions may include: a repellent component and a crosslinking component. A method for applying such compositions to textiles also is disclosed.