EP 0990626 A1 20000405 - Polymer coated woven glass fabric and process for its production
Title (en)
Polymer coated woven glass fabric and process for its production
Title (de)
Kunststoffbeschichtetes Glas-Gittergewebe und Verfahren zu seiner Herstellung
Title (fr)
Tissus de verre textile revêtu avec un polymère et procédé de production
Publication
Application
Priority
DE 19844387 A 19980928
Abstract (en)
Coating a glass fiber netting with thermoplastic polymer comprises passing the netting through an immersion bath of molten thermoplastic material and then through a blower to clear the mesh openings followed by a hot mangle station before cooling and winding. The netting is a woven fabric, with glass filaments in the warps and wefts as glass yarns or rovings, in a thickness of 22-2400 tex. The glass filaments can also contain other synthetic or carbon fibers. The plastics coating is applied at a rate of 10-30 wt% of the total weight, in a structure which can form a film over the woven netting as a reinforced film material. Sand can be bonded partially into the cladding. An Independent claim is included for a production process where the woven netting (1) is immersed in a bath (3) of molten thermoplastic cladding material (4), and mangled (6,7) while hot. Preferred Features: The hot plastics cladding material can be applied from an extruder as a paste over the woven netting, with a scraper to remove any surplus cladding. The mesh openings can be cleared by an air blower (8), and preferably with hot air (9). The plastics cladding can also be applied to the woven netting as a powder, such as by an electronic adhesion coating process, to be melted in a furnace shaft or a heated tunnel. The coated netting is passed through a cooling stretch (10). The glass fiber material can be cladded with a thermoplastics before weaving into the netting fabric, so that the glass fibers bond together when passed between heated rollers. The glass fiber filaments can be cladded with the thermoplastics material through an extruder. Hot sand is scattered over the surface of the finished and cladded woven netting material.
Abstract (de)
Kunststoffbeschichtetes Glas-Gittergewebe, insbesondere für die Putzarmierung oder als Geotextil, wobei das Beschichtungsmaterial thermoplastischer Kunststoff ist. <IMAGE>
IPC 1-7
IPC 8 full level
C03C 25/26 (2006.01); D03D 15/00 (2006.01); D06N 3/00 (2006.01); D06N 7/00 (2006.01)
CPC (source: EP)
D03D 15/267 (2021.01); D06N 3/0022 (2013.01); D06N 3/0088 (2013.01); D06N 3/0093 (2013.01); D06N 7/00 (2013.01)
Citation (search report)
- [X] US 5763043 A 19980609 - PORTER JOHN F [CA], et al
- [A] EP 0390755 A2 19901003 - SAVAL SRL [IT]
- [A] FR 2572426 A1 19860502 - NORD SA UNION TEXTILE [FR]
- [A] US 3779844 A 19731218 - DORSCH R
- [X] DATABASE WPI Section Ch Week 199351, Derwent World Patents Index; Class A93, AN 1993-411347, XP002126666
- [X] DATABASE WPI Section Ch Week 199332, Derwent World Patents Index; Class L02, AN 1993-251760, XP002126667
Designated contracting state (EPC)
AT CH DE ES IT LI
DOCDB simple family (publication)
EP 0990626 A1 20000405; EP 0990626 B1 20030827; AT E248134 T1 20030915; DE 19844387 A1 20000330; DE 19844387 C2 20020307; DE 59906753 D1 20031002; ES 2201600 T3 20040316
DOCDB simple family (application)
EP 99112230 A 19990625; AT 99112230 T 19990625; DE 19844387 A 19980928; DE 59906753 T 19990625; ES 99112230 T 19990625