An optical fibre comprising: an optical waveguide comprising a glass core surrounded by a glass cladding; a coating surrounding said optical waveguide comprising a polymer material comprising a cured polyester obtained by: (a) esterification of a reactant (A) selected from carboxylic acids, triglycerides, and mixtures thereof, having a C16-C24 aliphatic chain comprising at least two conjugated double bonds, with a reactant (B) selected from polyols having at least 3 hydroxyl groups, the polyols being thermally stable up to 300° C.; (b) curing of the 10 so obtained polyester, in the presence of a transition metal salt, the transition metal being selected from Mn, Fe, Co, Cu, and Ni. Preferably, the step of curing is a thermal curing, preferably up to 300° C. The transition metal salt acts as curing accelerator, i.e. it increases the curing rate so as to match the optical fibre drawing speed, the temperature of the glass exiting the drawing step and the drawing tower height commonly used in industrial plants for optical fibre production.

The present invention relates to a thermosetting binder composition containing water and a water-soluble oligomeric ester of at least one saccharide chosen from reducing sugars, non-reducing sugars and hydrogenated sugars, the hydrogenated sugars being chosen from the group consisting of erythritol, arabitol, xylitol, sorbitol, mannitol, iditol, maltitol, isomaltitol, lactitol, cellobitol, palatinitol, maltotritol and hydrogenation products of hydrolyzates of starch or of lignocellulose materials, and of at least one polycarboxylic acid, the binder composition having a dry matter content of between 50% and 80% by weight, the water-soluble oligomeric ester representing at least 80% by weight, preferably at least 90% by weight, of the cry matter content of the thermosetting binder composition, and the thermosetting binder composition containing less than 10% by weight, preferably less than 5% by weight, with respect to its dry matter content, of free sorbitol.

It also relates to the use of such a binder composition for the manufacture of a product based on mineral or organic fibers which are bonded by an insoluble organic binder.

The present invention relates to a thermosetting binder composition containing water and a water-soluble oligomeric ester of at least one saccharide chosen from reducing sugars, non-reducing sugars and hydrogenated sugars, the hydrogenated sugars being chosen from the group consisting of erythritol, arabitol, xylitol, sorbitol, mannitol, iditol, maltitol, isomaltitol, lactitol, cellobitol, palatinitol, maltotritol and hydrogenation products of hydrolyzates of starch or of lignocellulose materials, and of at least one polycarboxylic acid, the binder composition having a dry matter content of between 50% and 80% by weight, the water-soluble oligomeric ester representing at least 80% by weight, preferably at least 90% by weight, of the cry matter content of the thermosetting binder composition, and the thermosetting binder composition containing less than 10% by weight, preferably less than 5% by weight, with respect to its dry matter content, of free sorbitol.

It also relates to the use of such a binder composition for the manufacture of a product based on mineral or organic fibers which are bonded by an insoluble organic binder.

A silicate-based glass composition includes: 50-70 wt. % SiO.sub.2, 0.01-10 wt. % P.sub.2O.sub.5, 10-30 wt. % Na.sub.2O, 0.01-10 wt. % CaO, 0.01-10 wt. % MO, and 15-30 wt. % R.sub.2O, such that MO is the sum of MgO, CaO, SrO, BeO, and BaO, and R.sub.2O is the sum of Na.sub.2O, K.sub.2O, Li.sub.2O, Rb.sub.2O, and Cs.sub.2O.

An aqueous binder composition is provided for use in the formation of fiber insulation and non-woven mats that comprises a reaction product of one or more Liquid Polyol Monomers; itaconic acid, its salts or anhydride; and a C4 to C6 polyol selected from the group consisting of pentaerythritol, trimethylol propane, neopentyl glycol, and mixtures thereof. The molar ratio of the combined alcohols (Liquid Polyol Monomers and C4 to C6 polyols) to itaconic acid is at least 2:1, wherein the molar ratio of Liquid Polyol Monomers to C4 to C6 polyols is from about 1:1 to about 30:1.

An aqueous binder composition is provided for use in the formation of fiber insulation and non-woven mats that comprises a reaction product of one or more Liquid Polyol Monomers; itaconic acid, its salts or anhydride; and a C4 to C6 polyol selected from the group consisting of pentaerythritol, trimethylol propane, neopentyl glycol, and mixtures thereof. The molar ratio of the combined alcohols (Liquid Polyol Monomers and C4 to C6 polyols) to itaconic acid is at least 2:1, wherein the molar ratio of Liquid Polyol Monomers to C4 to C6 polyols is from about 1:1 to about 30:1.

An optical fiber cable comprising an optical fiber, and a jacketing layer including at least two or more layers of a jacketing inner layer and a jacketing outer layer formed in this order concentrically, wherein the jacketing layer comprises at least two or more layers of a jacketing inner layer and a jacketing outer layer formed in this order concentrically; a material constituting the jacketing inner layer is composed of a resin material having an oxygen permeability of 2.0 cc.Math.20 m/(m.sup.2.Math.day.Math.atm) or less; a material constituting the jacketing outer layer comprises at least one selected from a polyolefin-based resin, a polybutylene terephthalate-based resin, and a fluorine-based resin containing no chlorine atom in its structure; and the following general formula (i) and (ii) are satisfied when an outer diameter of the optical fiber is denoted by A (m), an outer diameter of the optical fiber cable is denoted by B (m), and a thickness of the jacketing outer layer is denoted by c (m):

900A1100(i)

0.402c/(BA)0.70(ii).

An electronic device includes a display panel including a folding region to fold with respect to a folding axis, and a non-folding region including a first non-folding region and a second non-folding region spaced apart with the folding region therebetween, and a support plate including a plurality of fiber layers including a plurality of reinforced fibers, the support plate being under the display panel, wherein the support plate has a thickness of about 100 m to about 300 m, when the thickness of the support plate is about 100 m to about 200 m, each fiber layer has a thickness of equal to or greater than about 30 m and less than about 50 m, and when the thickness is greater than about 200 m and equal to or smaller than about 300 m, each fiber layer has a thickness of about 40 m to about 100 m.

An electronic device includes a display panel including a folding region to fold with respect to a folding axis, and a non-folding region including a first non-folding region and a second non-folding region spaced apart with the folding region therebetween, and a support plate including a plurality of fiber layers including a plurality of reinforced fibers, the support plate being under the display panel, wherein the support plate has a thickness of about 100 m to about 300 m, when the thickness of the support plate is about 100 m to about 200 m, each fiber layer has a thickness of equal to or greater than about 30 m and less than about 50 m, and when the thickness is greater than about 200 m and equal to or smaller than about 300 m, each fiber layer has a thickness of about 40 m to about 100 m.

An optical fibre comprising: an optical waveguide comprising a glass core surrounded by a glass cladding; a primary coating surrounding the optical waveguide; a secondary coating, surrounding the primary coating, comprising a cured polymer material obtained by curing a curable coating composition comprising: (a) a polyester obtained by esterification of a reactant A selected from carboxylic acids, triglycerides, and mixtures thereof, having a C.sub.16-C.sub.24 aliphatic chain comprising at least two double bonds spaced by one carbon atom at most, with a reactant B selected from polyols having at least 3 hydroxyl groups, the polyols being thermally stable up to 300 C.; (b) an aromatic glycidyl epoxy resin; (c) an aliphatic polyether hardener containing from 8 to 64 hydroxy groups and/or from 2 to 4 epoxy groups; and (d) a secondary amine compound as curing agent. Preferably, the step of curing is a thermal curing, preferably up to 300 C. When cured by heat, the coating material can be applied during the drawing process of the fibre so as to exploit the heat of the just drawn glass fibre as heat source for curing.