摘要:
The present invention is directed to a separation medium comprising rotary dried or spray dried precipitated silica. The silica has a pore surface area P wherein log10 P>2.2, and the ratio of BET to CTAB is at least 1.0 measured prior to any surface modification of the silica.The present invention is further directed to a method of separating suspended or dissolved materials from a fluid stream, comprising contacting the stream with the separation medium described above.
摘要:
The present invention is directed to a separation medium comprising rotary dried or spray dried precipitated silica. The silica has a pore surface area P wherein log10 P>2.2, and the ratio of BET to CTAB is at least 1.0 measured prior to any surface modification of the silica.The present invention is further directed to a method of separating suspended or dissolved materials from a fluid stream, comprising contacting the stream with the separation medium described above.
摘要:
The present invention is directed to ultrafiltration membranes comprising a microporous material, said microporous material comprising: (a) a polyolefin matrix present in an amount of at least 2 percent by weight, (b) finely divided, particulate, substantially water-insoluble silica filler distributed throughout said matrix, said filler constituting from about 10 percent to about 90 percent by weight of said microporous material substrate; and (c) at least 35 percent by volume of a network of interconnecting pores communicating throughout the microporous material. The present invention is also directed to methods of separating suspended or dissolved materials from a fluid stream such as a liquid or gaseous stream, comprising passing the fluid stream through the ultrafiltration membrane described above.
摘要:
The present invention is directed to microfiltration membranes comprising a microporous material, said microporous material comprising: (a) a polyolefin matrix present in an amount of at least 2 percent by weight, (b) finely divided, particulate, substantially water-insoluble silica filler distributed throughout said matrix, said filler constituting from about 10 percent to about 90 percent by weight of said microporous material substrate, wherein the weight ratio of filler to polyolefin is greater than 4:1; and (c) at least 35 percent by volume of a network of interconnecting pores communicating throughout the microporous material. The present invention is also directed to methods of separating suspended or dissolved materials from a fluid stream such as a liquid or gaseous stream, comprising passing the fluid stream through the microfiltration membrane described above.
摘要:
Photoreactive compounds are synthesized from 2,5- or 2,6-dintrobenzyl groups. Also disclosed are methods of synthesizing reactive monomers containing 2,5- or 2,6-dintrobenzyl groups.
摘要:
Photoreactive compounds are synthesized from 2,5- or 2,6-dinitrobenzyl groups. Also disclosed are methods of synthesizing reactive monomers containing 2,5- or 2,6-dinitrobenzyl groups.
摘要:
The present invention provides novel packaging articles, e.g., food and beverage cans. Preferred cans typically comprise a body portion and an end portion, wherein at least one of the body and end portions are aluminum and are coated on at least one major surface with a coating composition of the present invention. Suitable coating compositions of the present invention comprise: one or more polyester resins, wherein at least on the polyester resins has a glass transition temperature (“Tg”) less than about 50° C., and wherein the polyester resin is formed by the reaction of one or more polyacid molecules and one or more polyol molecules; and a crosslinker. The present invention also provides a method of making such cans.
摘要:
A coating composition for a food or beverage can that includes an emulsion polymerized latex polymer formed by combining an ethylenically unsaturated monomer component with an aqueous dispersion of a water-dispersible polymer.
摘要:
A multi-component composite coating composition is provided which includes a basecoat deposited from an aqueous basecoat film-forming composition and a transparent topcoat applied over the basecoat. The basecoat film-forming composition includes at least one crosslinkable film-forming resin and at least one amphiphilic alcohol having the structural formula: HO—R, wherein R includes a linear hydrocarbon segment having at least seven contiguous carbon atoms. The amphiphilic alcohol is present in an amount ranging from about 0.01 to about 50 weight percent based upon total amount of resin solids of the basecoat film-forming composition. A coated substrate is also provided.
摘要:
A waterborne coating composition having improved smoothness is provided which contains a polymeric film-forming resin in aqueous medium and from about 0.1 percent to about 10 percent by weight based on total weight of resin solids of at least one material having the following structure: ##STR1## where n is an integer that is at least 1, R.sup.1 is hydrogen or lower alkyl having 1 to 10 carbon atoms, R.sup.2 is a divalent organic radical, and R.sup.3 is an alkyl, aryl, or alkylaryl group having 1 to 20 carbon atoms.