EP 0091622 A3 19840725 - PROCESS AND APPARATUS FOR THE MANUFACTURE OF FLOOR WEBS
Title (en)
PROCESS AND APPARATUS FOR THE MANUFACTURE OF FLOOR WEBS
Publication
Application
Priority
DE 3213439 A 19820410
Abstract (en)
[origin: US4474836A] A method and apparatus for producing carpet liners successively applies a pre-coating and a heavy coating material to a carpet band to be treated. The pre-coating material, which contains an activated isocyanate-polyol mixture, is applied to the carpet band at a temperature at which the components of the mixture will not react with each other. A heavy coating thermoplastic material is subsequently applied to the carpet band. The heavy coating is applied at a sufficiently high temperature to cause the components of the pre-coating mixture, which already has been applied to the carpet band, to react with each other and form polyurethane. Accordingly, a pre-coating layer of polyurethane is formed simultaneously with the application of the heavy coating material.
IPC 1-7
IPC 8 full level
D06N 7/00 (2006.01)
CPC (source: EP US)
D06N 7/0078 (2013.01 - EP US); D06N 2203/02 (2013.01 - EP US); D06N 2203/042 (2013.01 - EP US); D06N 2203/068 (2013.01 - EP US); D06N 2203/08 (2013.01 - EP US); D06N 2205/10 (2013.01 - EP US); D06N 2205/20 (2013.01 - EP US); D06N 2209/0823 (2013.01 - EP US); D06N 2211/066 (2013.01 - EP US); D06N 2213/065 (2013.01 - EP US)
Citation (search report)
- [A] FR 2313494 A1 19761231 - ICI LTD [GB]
- [A] DE 2524351 A1 19770602 - USM CORP
Designated contracting state (EPC)
AT BE CH FR GB LI LU NL
DOCDB simple family (publication)
EP 0091622 A2 19831019; EP 0091622 A3 19840725; DE 3213439 A1 19831020; US 4474836 A 19841002
DOCDB simple family (application)
EP 83103217 A 19830331; DE 3213439 A 19820410; US 48215283 A 19830405