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.
B32B 37/06 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
D04H 11/08 - Non-woven pile fabrics formed by creation of a pile on at least one surface of a non-woven fabric without addition of pile-forming material, e.g. by needling, by differential shrinking
D06M 10/00 - Physical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents or magnetic fieldsPhysical treatment combined with treatment with chemical compounds or elements
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.
D04H 11/08 - Non-woven pile fabrics formed by creation of a pile on at least one surface of a non-woven fabric without addition of pile-forming material, e.g. by needling, by differential shrinking
B32B 37/06 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
D06M 10/00 - Physical treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents or magnetic fieldsPhysical treatment combined with treatment with chemical compounds or elements
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.
C09D 133/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
E04F 15/12 - Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo
B32B 33/00 - Layered products characterised by particular properties or particular surface features, e.g. particular surface coatingsLayered products designed for particular purposes not covered by another single class
patents