R-, E- AND ECR FIBRE GLASS WITH AQUEOUS SIZING AGENT Russian patent published in 2010 - IPC C03C25/26 

FIELD: chemistry.

SUBSTANCE: invention relates to R-, E- and/or ECR fibre glass containing a sizing agent. The sizing agent contains at least on multi-component film-forming agent, one lubricant and one adhesion promoter: a) 2.0-4.0 wt % vinyl acetate and ethylene copolymer; b) 0.3-0.7 wt % polyamidoamide; c) 0.1-0.3 wt % mixture of vinyl alcohol and polyether; d) 0.1-0.3 wt %polypropylene or polyethylene-polytetrafluoroethylene wax; e) 0.4-0.7 wt % adhesion promoter and f) water as a residue - up to 100%.

EFFECT: higher chemical resistance of the fibre, as well as improved processing properties of material made from woven roving, specifically: continuity, capacity for grinding, crease resistance and shift resistance.

11 cl, 3 ex