摘要:
A flame retardant composition for treating a high pulp content nonwoven web is provided. The flame retardant composition includes soluble solids formed from inorganic salts, such as ammonium polyphosphate and sulfur. The TGA range of such soluble solids is from about 175.degree. C. to about 370.degree. C. The flame retardant composition may be continuously and uniformly applied to the high pulp content nonwoven web by a non-compressive process.
摘要:
A biodegradable nonwoven fabric and molded vessel suitable to throwaway use such as in domestic, wrapping, agricultural, gardening, and civil engineering field. A web of cellulose-based fibers are combined with chitosan salt and an interfiber binder comprising a combination of chitosan salt and fine cellulose, or by combined use of the interfiber binder and physical combining techniques. They are naturally decomposed by microorganisms in the soil and can dissolve the polution problems.
摘要:
A vulcanizable rubber composition is disclosed that includes (a) a rubber component selected from natural rubber, synthetic rubber or combinations thereof; (b) a methylene donor; and (c) a methylene acceptor which is the addition product of (1) at least one of the compounds including a dihydric phenol, a polyhydric phenol, a dihydric phenolic resin or a polyhydric phenolic resin, and (2) at least one of the compounds including a mono oxirane compound, an alkylene carbonate having from about 2 to 18 carbon atoms, or a poly oxirane compound. The addition product of this invention is a hydroxylalkyl aryl ether having from about 25 to 85 percent of the hydroxyl groups of the di- or polyhydric phenol or the dior polyhydric phenolic resin unreacted. A reinforced rubber article is also provided.
摘要:
A disposable article for interim cleaning of hard surfaces comprises a non-woven substrate, carrying an aqueous cleaning composition loaded onto the substrate at a level less than about 85%, preferably less than 75%, of its absorbence capacity. The aqueous composition comprises: optionally, one or more nonionic surfactants, one or more anionic surfactants or mixture of nonionic and anionic surfactants; a water miscible solvent for oils, (preferably a low molecular weight alcohol or N-methyl-2-pyrrolidone); and an alkalinity agent, such as ammonium hydroxide, in sufficient amount to maintain the pH of the extracted solution within the range of 8 to 12. The non-woven substance is preferably a non-chemically bonded fibrous material.
摘要:
An asbestos-free heat settable composition includes a fibrous reinforcement comprising aramid fibres in the form of a carded or needled non-woven web or felt, or a loosely woven or knitted fabric.