Abstract: There is described herewith an alkaline hydrolysis resistant carpet adhesive comprising an n-butyl acrylate acrylic polymer.

Abstract: There is disclosed herein a floor covering comprising a primary backing having a fibrous face and an underside; optionally a cured precoat layer on the underside of the primary backing; and a microwave cured thermoplastic backing layer fixed to the primary backing. There is also provided a method of making a floor covering comprising tufting or implanting a fibrous material or yarn into a primary backing; optionally precoating the underside of the primary backing layer by applying a precoating composition followed by curing the precoating; applying a thermoplastic backing layer to the optionally precoated primary backing layer; and microwave curing the thermoplastic backing layer. An apparatus for curing a thermoplastic backing layer of a carpet is also described.

Abstract: There is disclosed a floor covering comprising a primary backing having a fibrous face and an underside; and a microwave cured precoat layer on the underside of the primary backing. There is also disclosed herein a method of making a floor covering comprising: tufting or implanting a fibrous material or yarn into a primary backing; precoating the underside of the primary backing layer by applying a precoating composition followed by microwave curing the precoating. An apparatus for curing a precoated primary backing layer also described.

Abstract: There is disclosed a precoating composition for making a carpet tile comprising: at least one copolymer derived from an acrylic or methacrylic monomer and a styrenic monomer; at least one copolymer derived from an acrylic ester and a methacrylic ester; at least one thickener; and water. There is also disclosed a precoated primary backing, a floor covering and a carpet tile prepared using the composition.