A method for producing mineral wool composites, including: (a) producing a first mineral wool composite by extracting a portion of circulating water to prepare a first binder composition and spraying it onto mineral fibers, while providing clean water to the circulating water; (b) performing (b1) and (b2) in any order or at the same time (b1) pausing extraction of the circulating water for preparation of the first binder composition and (b2) extracting a portion of the circulating water and storing the extracted circulating water in a first tank; (c) producing a second, different mineral wool composite by extracting a portion of the circulating water to prepare a second binder composition, and spraying it onto mineral fibers, while providing clean water to the circulating water, wherein the circulating water is used to clean a production apparatus for producing mineral wool composites and is filtered and reused in the production apparatus.

The invention relates to a method for manufacturing insulation products based on mineral wool bound by an organic binder, comprising the following successive steps: (a) providing mineral wool at room temperature, (b) applying, to the mineral wool, an aqueous thermosetting binder composition, (c) drying the mineral wool impregnated with the aqueous thermosetting binder composition to obtain thermosetting mineral wool, (d) shaping the thermosetting mineral wool, and (e) heating the shaped thermosetting mineral wool at a temperature for long enough to enable the constituents of the binder to be condensed and an insoluble binder to be formed.

[Problem] To provide a radiation curable resin composition which is suitable as a primary material for optical fibers, while having a high curing rate by means of irradiation of radiation [Solution] A radiation polymerizable composition for forming an optical fiber primary coating layer, said composition containing: (A) a urethane oligomer containing a structure represented by formula (I) (in formula (I), R represents a vinyl group; and * represents a bonding hand); (B) one or more compounds selected from among (i) maleic acid anhydride, (ii) a compound represented by formula (II) (in formula (II), R.sup.I represents a single bond or an alkanediyl group having from 1 to 6 carbon atoms; and R.sup.2 represents a hydrogen atom, a hydroxy group or a specific group represented by formula (II-1) or formula (II-2)), and (iii) a compound represented by formula (III) (in formula (III), R.sup.5 represents an alkanediyl group having from 1 to 6 carbon atoms); and (C) a radiation polymerization initiator.

[Problem] To provide a radiation curable resin composition which is suitable as a primary material for optical fibers, while having a high curing rate by means of irradiation of radiation [Solution] A radiation polymerizable composition for forming an optical fiber primary coating layer, said composition containing: (A) a urethane oligomer containing a structure represented by formula (I) (in formula (I), R represents a vinyl group; and * represents a bonding hand); (B) one or more compounds selected from among (i) maleic acid anhydride, (ii) a compound represented by formula (II) (in formula (II), R.sup.I represents a single bond or an alkanediyl group having from 1 to 6 carbon atoms; and R.sup.2 represents a hydrogen atom, a hydroxy group or a specific group represented by formula (II-1) or formula (II-2)), and (iii) a compound represented by formula (III) (in formula (III), R.sup.5 represents an alkanediyl group having from 1 to 6 carbon atoms); and (C) a radiation polymerization initiator.

A composite yarn comprising a continuous multifilament core yarn incorporated in a matrix, is characterized in that the matrix comprises at least one polymer material and at least one reinforcing filler, the reinforcing filler being formed from functionalized particles, said particles having a median size (d.sub.v50) of less than 40 μm.

A process for manufacturing such a composite yarn, comprises at least one step of depositing, by coating or extrusion, a matrix comprising a polymer and a reinforcing filler, onto a core yarn.

A textile surface comprises at least one such composite yarn.

A composite yarn comprising a continuous multifilament core yarn incorporated in a matrix, is characterized in that the matrix comprises at least one polymer material and at least one reinforcing filler, the reinforcing filler being formed from functionalized particles, said particles having a median size (d.sub.v50) of less than 40 μm.

A process for manufacturing such a composite yarn, comprises at least one step of depositing, by coating or extrusion, a matrix comprising a polymer and a reinforcing filler, onto a core yarn.

A textile surface comprises at least one such composite yarn.

A composite yarn comprising a continuous multifilament core yarn incorporated in a matrix is characterised in that the matrix comprises at least one polymer material and at least one reinforcing filler, the reinforcing filler being formed from functionalized particles, said particles having a median size (d.sub.v5o) of less than 40 μm. A process for manufacturing such a composite yarn, comprises at least one step of depositing, by coating or extrusion, a matrix comprising a polymer and a reinforcing filler, onto a core yarn. A textile surface comprises at least one such composite yarn.

[Problem] To provide a radiation curable resin composition that is suitable as a primary material of an optical fiber and has a fast curing rate by irradiation with radiation.

[Solution] A radiation polymerizable composition for forming a primary coating layer of an optical fiber, the radiation polymerizable composition comprising: (A) a urethane oligomer comprising a structure represented by formula (I) below:

##STR00001## wherein R is a vinyl group and * is a bond; (B) one or more compounds of: (i) maleic anhydride, (ii) a compound represented by formula (II):

##STR00002## wherein R.sup.1 is a single bond or an alkanediyl group comprising 1 to 6 carbon atoms, and R.sup.2 is a hydrogen atom, a hydroxy group, or a group represented by predetermined formula (II-1) or formula (II-2), or (iii) a compound represented by formula (III):

##STR00003## wherein R.sup.5 is an alkanediyl group comprising 1 to 6 carbon atoms; and (C) a radiation polymerization initiator.

[Problem] To provide a radiation curable resin composition that is suitable as a primary material of an optical fiber and has a fast curing rate by irradiation with radiation.

[Solution] A radiation polymerizable composition for forming a primary coating layer of an optical fiber, the radiation polymerizable composition comprising: (A) a urethane oligomer comprising a structure represented by formula (I) below:

##STR00001## wherein R is a vinyl group and * is a bond; (B) one or more compounds of: (i) maleic anhydride, (ii) a compound represented by formula (II):

##STR00002## wherein R.sup.1 is a single bond or an alkanediyl group comprising 1 to 6 carbon atoms, and R.sup.2 is a hydrogen atom, a hydroxy group, or a group represented by predetermined formula (II-1) or formula (II-2), or (iii) a compound represented by formula (III):

##STR00003## wherein R.sup.5 is an alkanediyl group comprising 1 to 6 carbon atoms; and (C) a radiation polymerization initiator.

A decorative and/or functional laminate using a nonwoven glass fibre material impregnated and or coated with a novel mixture of at least styrene maleic anhydride copolymer amic acid and cyanuric acid and melamine to provide opacity and a laminate surface suitable for printing or painting and/or sealing.