Abstract: A carpet backing composition that includes a frothable aqueous composition and a froth aid. The frothable aqueous composition includes a polymeric binder, and the froth aid includes a polypropylene glycol, a polypropylene glycol ether, or a combination thereof. The froth aid has a weight average molecular weight of 130 to 2000. The carpet backing composition can be used to prepare a carpet product.

Abstract: A frothable aqueous composition that includes a polymeric binder, and a froth aid that includes a polypropylene glycol, a polypropylene glycol ether, or a combination thereof, where the froth aid has a weight average molecular weight of 130 to 2000, as a carpet backing.

Abstract: The present disclosure provides embodiments of aqueous compositions comprising a dispersed polymer for preparing a carpet backing, methods for producing a carpet product, and methods for preparing a polymer-backed carpet. The aqueous composition can be prepared by polymerizing monomers including at least 50 percent by weight of at least one compound selected from the group consisting of alkyl acrylates and alkyl methacrylates having at least 4 carbon atoms in the alkyl. at least 30 percent by weight of at least one compound selected from the group consisting of styrene and alkyl acrylates and alkyl methacrylates having not more than 3 carbon atoms in the alkyl, less than 3 percent by weight of a hydroxyalkyl acrylate, and a copolymerizable acid in an amount up to 5 percent by weight.

Abstract: A carpet backing composition with increased frothablity and froth collapse which may include a binding amount of a polymeric binder, a filler, a thickener, and a foaming surfactant which includes at least one anionic surfactant selected from: linear and/or branched alkyl sulfates having an average 8 to 10 carbon atoms in the alkyl moiety, and linear and/or branched C8 to C10 alkyl sulfonates having an average 8 to 10 carbon atoms in the alkyl moiety.

Abstract: A carpet backing composition comprising: (1) a binding amount of a copolymer binder that is polymerized from a monomer mixture comprising: from 10 to 50 weight parts of a first low Tg monomer (A) comprising an alkyl acrylate monomer and, optionally, an additional low Tg comonomer; from 50 to 90 weight parts of a second high Tg monomer (B) comprising vinyl acetate and, optionally, an additional high Tg comonomer; and, optionally, up to 5 parts of a carboxylic acid monomer (C); wherein the total of A, B and C is 100 weight parts monomers; and (2) a filler; with the proviso that the monomer mixture is substantially free of ethylene.

Abstract: The invention relates to novel O,O'-, O,S'- or S,S'-dithiodialkylene-bis(mono- or dihydrocarbyl carbamothioates) and S,S'-dithiodialkylene-bis(mono- or dihydrocarbyl carbamodithioate). The novel compounds of this invention are useful as collectors in the froth flotation of sulfide mineral ores.

Abstract: The invention relates to novel O,O'-, O,S'- or S,S'-dithiodialkylene-bis(mono- or dihydrocarbyl carbamothioates) and S,S'-dithiodialkylene-bis(mono- or dihydrocarbyl carbamodithioate). The novel compounds of this invention are useful as collectors in the froth flotation of sulfide mineral ores.

Abstract: The invention relates to novel O- or S-(2-mercaptoalkyl)mono- or dihydrocarbyl carbamothioates and S-(2-mercaptoalkyl)mono- or dihydrocarbyl carbamodithioate. The novel compounds of this invention are useful as collectors in the froth flotation of sulfide mineral ores.

Abstract: The invention is a process for recovering coal or mineral values from raw coal or mineral ore which comprises subjecting the raw coal or mineral ore in the form of an aqueous pulp, to a floatation process in the presence of a floatation collector, and a flotating amount of a floatation frother which comprises the reaction product of an alitphatic C.sub.6 alcohol and between about 1 and 5 moles of propylene oxide, butylene oxide or mixtures thereof, under conditions such that the coal or mineral values are recovered.

Abstract: The invention is a process of concentrating sulfide ores, which comprises subjecting a sulfide ore, in the form of a pulp, to a flotation process in the presence of a flotation collector for the sulfides comprising a 1,3-oxathiolane-2-thione or a 1,3-dithiolane-2-thione.

Abstract: The invention is a process for recovering coal or mineral values from raw coal or mineral ore which comprises subjecting the raw coal or mineral ore in the form of an aqueous pulp, to a floatation process in the presence of a floatation collector, and a flotating amount of a floatation frother which comprises the reaction product of an alitphatic C.sub.6 alcohol and between about 1 and 5 moles of propylene oxide, butylene oxide or mixtures thereof, under conditions such that the coal or mineral values are recovered.