Glass fibre mat and products containing glass fibre mats
AssigneeJohns Manville
InventorThomas Grassl
Life of this patent
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Abstract
A glass fiber mat comprises glass fibers of a first kind, glass fibers of a second kind and a binding agent. Glass fibers of the first kind in this case are characterized by a mean fiber diameter of under 6 μm and compliance with the EC Protocol “ECB/TM/27 rev. 7” and glass fibers of the second kind by a mean fiber diameter of over 6 μm. The ratio between the weight component of glass fibers of the first kind and the weight component of glass fibers of the second kind is between 0.01 and 0.15. And the surface weight of the glass fiber mat is between 25 g/m2 and 80 g/m2. In a CV floor covering comprising a usable layer and a structural layer, the structural layer comprises a glass fiber mat of this kind provided with impregnation.
Claims22
A cushioned vinyl floor covering comprising:
- a useable top layer;
- a glass fibre mat in contact with the useable top layer;
- a back foaming layer also in contact with the glass fibre mat;
- and
- a polyvinyl chloride paste that adheres the back foaming layer to the glass fibre mat,
- wherein the glass fibre mat comprises:
- (i) a first kind of glass fibres having a mean fibre diameter of less than 6 μm;
- and
- (ii) a second kind of glass fibres having a mean fibre diameter of more than 6 μm, and
- (iii) a binder comprising a thermoset polymer, wherein the binder lacks an additive.
A cushioned vinyl floor covering comprising:
- a useable top layer;
- a glass fibre mat in contact with the useable top layer;
- a back foaming layer also in contact with the glass fibre mat;
- and
- a polyvinyl chloride paste that adheres the back foaming layer to the glass fibre mat,
- wherein the glass fibre mat comprises:
- (i) a first kind of glass fibres having a mean fibre diameter of less than 6 μm;
- (ii) a second kind of glass fibres having a mean fibre diameter of more than 6 μm;
- and
- (iii) a binder comprising a thermoset polymer, wherein the binder lacks an additive;
- and
- wherein the glass fibre mat has a porosity ranging from 1500 l/m2s to 2500 l/m2s.
Dependencies are inferred from the claim text.