Method for forming a layer of blown cellular urethane on a carpe

Details Method for forming a layer of blown cellular urethane on a carpe Method for forming a layer of blown cellular urethane on a carpe

1983-09-12

1985-04-23

Dawson, Robert

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 79, 156238, 156322, 156344, 264 462, 427244, 428 95, 428 97, 4283193, B32B 3100, B32B 520

Patent

active

045128316

ABSTRACT:
A method of forming a layer of blown cellular urethane on a primary carpet backing comprising the steps of preparing a mixture of reactive urethane forming agents, controlling the temperature of the reactive mixture, shaping the reactive mixture into a layer upon a latex film, heating the urethane forming mixture to initiate chemical blowing of the mixture, applying the underside of a previously tufted and heated primary carpet backing directly to the upper surface of the mixture, heating the mixture to a predetermined temperature, applying pressure to the carpet and mixture and stripping the carpet and cellular urethane from the conveyor belt.

REFERENCES:
patent: 4405393 (1983-09-01), Tillotson
Von Dr.-Ing. R. Ernst: Herstellen von Polyurethanschaum-Platten, "Kunststoff", 58, (1968), vol. 2, pp. 118-122, (Translation included).
Dr. Wilhelm Kallert: Polyurethan fur die Teppichrucken-Beschichtung, "Chemiefasern/Textilindustrie", Oct. 1974, pp. 859-861, (Translation included).
Peter Lennox-Kerr: Neues aus dem Tufting-Sektor, "Textilindustrie", vol. 72, Mar. 1970, pp. 210-215, (Translation included).
No author given: Neue Polyurethan Teppichbeschichtungsanlage von Fleissner, "Chemiefasern/Textilindustrie", Mar. 1977, p. 250, (Translation included).

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