POLYISOCYANURATE COMPRISING FOAMS WITH LONG CREAM TIME AND SNAP-CURE BEHAVIOUR

A reaction mixture and a process for making a polyisocyanurate comprising rigid foam having a density in the range 50-500 kg/mis disclosed, said process having a cream time >35 seconds and a snap cure behaviour. 1. A reaction mixture for making a polyisocyanurate (PIR) comprising foam having a density in the range 50-500 kg/m , said reaction mixture having an isocyanate index of at least 200 and comprising at least:a polyisocyanate composition comprising one or more polyisocyanate compounds;a catalyst composition comprising at least a trimerization catalyst compound in an amount of at least 50 wt % based on the total weight of all catalyst compounds in the catalyst composition;an isocyanate-reactive composition comprising at least a low molecular weight (MW) polyol having a MW below 200 g/mol in an amount of 0.1 up to 30 wt % based on the total weight of the isocyanate-reactive composition;one or more blowing agents comprising at least 50 mol % water based on the total molar amount of all blowing agents;optionally one or more surfactants, one or more flame retardants, one or more antioxidants or combinations thereof; andwherein the wt % of the trimerization catalyst compounds is <0.5 wt % based on the total weight of the trimerization catalyst compounds and the polyisocyanate composition.2. The reaction mixture according to claim 1 , wherein the trimerization catalyst compound is selected from organic salts claim 1 , preferably from alkali metal claim 1 , earth alkali metal and/or quaternary ammonium organic salts such as potassium acetate claim 1 , potassium hexanoate claim 1 , potassium ethylhexanoate claim 1 , potassium octanoate claim 1 , potassium lactate claim 1 , N-hydroxypropyl trimethyl ammonium octanoate claim 1 , N-hydroxypropyl trimethyl ammonium formate and mixtures thereof3. The reaction mixture according to claim 1 , wherein the low molecular weight (MW) polyol has a molecular weight below 150 g/mol.4. The reaction mixture according to wherein the low ...

Process for dyeing and foaming thermoplastic polyurethane

A process for the preparation of coloured and expanded thermoplastic polyurethane (coloured ETPU) material which comprises the following steps: a) providing thermoplastic polyurethane (TPU) material and at least one gaseous fluid wherein the melting temperature of the TPU material is above the supercritical temperature of the at least one gaseous fluid b) placing the TPU material in an autoclave together with a colorant and/or a fluorescent whitening agent (FWA), wherein the colorant is selected from at least one of a disperse dye, an acid dye and a pigment; c) increasing the pressure in the autoclave by introducing the at least one gaseous fluid at a temperature below the melting point of the TPU material and at least above the supercritical temperature of the at least one gaseous fluid at the applied pressure (saturation step); and d) allowing the non-expanded TPU material to saturate; and e) decreasing the pressure in the autoclave down to ambient pressure at a temperature between the ...

Method for producing expanded thermoplastic polymers

An improved process for fabricating expanded thermoplastic polymers (eTP) starting from non-expanded TP is disclosed whereby said process has improved thermal control, uses preferably environmentally friendly foaming gasses, avoids anisotropy and sticking of the eTP during the processing and minimises the duration of the charging step.

Process for making a flexible polyurethane foam

Process for making a flexible polyurethane foam by reacting a polyisocyanate and a polyol composition in the presence of water, a reactive amine catalyst and a specific metal salt. The foams have a low level of volatile organic compounds (VOCs) and a desirable combination of mechanical and durability properties 1. A flexible polyurethane foam prepared using a reactive amine catalyst and a zinc carboxylate catalyst having a hardness of >80 N (measured as Indentation Load Deflection ILD according to ISO 2439 at 40% compression) , a humid compression set value at 70% and 50° C. of less than 5% (measured according to HPU-FT-010) , a tear strength higher than 200 N/m (measured according to ISO 8067) , a hardness loss (ILD 40%) after dynamic fatigue of less than 20% (measured according to ISO 3385) and a VOC emission value<100 μg/g (measured according to VDA 278).2. The flexible polyurethane foam according to wherein the reactive amine catalyst used is selected from tertiary amine catalysts which have at least one isocyanate-reactive hydrogen atom and preferably one or more primary and/or secondary amine groups and/or one or more hydroxy groups and wherein the zinc carboxylate catalyst used is selected from a zinc carboxylate catalyst having 5-18 and preferably 6-12 carbon atoms3. The flexible polyurethane foam according to having a VOC emission below 50 μg/g and more preferred below 20 μg/g claim 1 , a tear strength more than 250 N/m and a humid compression set value at 70% and 50° C. of less than 1%.4. A process for making the flexible polyurethane foam comprising reacting a polyisocyanate and a polyol composition at an index of 95-125 wherein the polyol composition comprises a polyoxyethylene polyoxypropylene polyol (a1) having an oxyethylene content of 50-95% by weight claim 1 , calculated on the weight of this polyol (a1) claim 1 , and a polyoxypropylene polyol (a2) claim 1 , optionally comprising oxyethylene groups claim 1 , the polyol having an oxyethylene content ...

Polyisocyanurate comprising foams with long cream time and snap-cure behaviour

A reaction mixture and a process for making a polyisocyanurate comprising rigid foam having a density in the range 50-500 kg/m 3 is disclosed, said process having a cream time >35 seconds and a snap cure behaviour.

Device for installing an optical fibre in a splice connector

A device for installing an optical fibre in a connector, comprising an optical fibre cleaving mechanism (51), a connector holding means and a fibre insertion mechanism (55) arranged such that an optical fibre may be cleaved by the cleaving mechanism to produce an end of the fibre, and the end of the fibre may be inserted by means of the insertion mechanism into a connector (1) held by the connector holding means (53).

Optical fibre cleaving device

A mechanism for cleaving optical fibers, comprising fiber cleaving means and gripping members arranged to grip an optical fiber and to apply a pulling force to put the fiber under tension whilst the fiber is cleaved, wherein the gripping member(s) C are arranged to eject a cleaved-off part of the fiber F into a receptacle 49 once the fiber has been cleaved, and/or the fiber F is bent during cleaving by means of a rotatable double anvil 47 widely separated from the gripping members.

Portable device for attaching a connector to an optical fiber

A portable device for attaching a connector to an optical fiber, the optical fiber having an end, the device comprising means for receiving the optical fiber at the end of the optical fiber; and a connector station for autonomously attaching the connector to the optical fiber.

Device for installing an optical fibre in a splice connector

A device for installing an optical fiber in a connector, comprising an optical fiber cleaving mechanism (51), a connector holding means and a fiber insertion mechanism (55) arranged such that an optical fiber may be cleaved by the cleaving mechanism to produce an end of the fiber, and the end of the fiber may be inserted by means of the insertion mechanism into a connector (1) held by the connector holding means (53).

PROCESS FOR DYEING AND FOAMING THERMOPLASTIC POLYURETHANE

A process for the preparation of coloured and expanded thermoplastic polyurethane (coloured ETPU) material which comprises the following steps: 1. A process for the preparation of coloured and expanded thermoplastic polyurethane material which comprises the following steps:a) providing thermoplastic polyurethane material and at least one gaseous fluid wherein the melting temperature of the thermoplastic polyurethane material is above the supercritical temperature of the at least one gaseous fluid;b) placing the thermoplastic polyurethane material in an autoclave together with a colorant and/or a fluorescent whitening agent, wherein the colorant is selected from at least one of a disperse dye, an acid dye and a pigment;c) increasing the pressure in the autoclave by introducing the at least one gaseous fluid at a temperature below the melting point of the thermoplastic polyurethane material and at least above the supercritical temperature of the at least one gaseous fluid at the applied pressure;d) allowing the non-expanded thermoplastic polyurethane material to saturate; ande) decreasing the pressure in the autoclave down to ambient pressure at a temperature between the melting temperature and the glass transition temperature of the thermoplastic polyurethane material at such a rate that the thermoplastic polyurethane material expands to obtain the coloured expanded thermoplastic polyurethane material; andf) removing the coloured expanded thermoplastic polyurethane material from the autoclave.2. The process according to claim 1 , wherein the at least one gaseous fluid comprises CO.3. The process according to claim 1 , wherein the at least one gaseous fluid is selected from COand the saturation step is performed at a pressure in the range of 73-500 bar and at a temperature below the melting point of the thermoplastic polyurethane material and at least above the supercritical temperature of supercritical CO(SC CO) at the applied pressure.4. The process according to ...

Connector for an optical fiber and combinations, kits, and methods of using the same

A portable device for attaching a connector to an optical fiber, the optical fiber having an end, the device comprising means for receiving the optical fiber at the end of the optical fiber; and a connector station for autonomously attaching the connector to the optical fiber.

METHOD FOR PRODUCING EXPANDED THERMOPLASTIC POLYMERS

An improved process for fabricating expanded thermoplastic polymers (eTP) starting from non-expanded TP is disclosed whereby said process has improved thermal control, uses preferably environmentally friendly foaming gasses, avoids anisotropy and sticking of the eTP during the processing and minimises the duration of the charging step. 1. Method for producing expanded thermoplastic polymeric material , said method comprising at least following steps:a) placing a non-expanded thermoplastic polymer material in an autoclave, said autoclave being partly filled with a liquid and wherein the non-expanded thermoplastic polymer material not being in contact with said liquid;b) increasing the pressure in the autoclave by introducing at least one gaseous fluid at a temperature within the autoclave below the melting temperature of the non-expanded thermoplastic polymer material;c) allowing the non-expanded thermoplastic polymer material to reach a saturation state; thereby forming a saturated non-expandable thermoplastic polyurethane materiald) submerging the saturated non-expandable thermoplastic polyurethane material into the liquid, and thene) decreasing the pressure in the autoclave such that the submerged saturated non-expandable thermoplastic polymer material expands to form the expanded thermoplastic polymer material.2. The method according to claim 1 , wherein the gaseous fluids are selected from Nand/or CO.3. The method according to claim 1 , wherein the gaseous fluids comprise low thermal conductivity gasses selected from Hydro Chloro Fluoro Carbons (HCFC's) claim 1 , Chloro Fluoro Carbons (CFC's) claim 1 , Hydro Chloro Fluoro Olefins (HCFO's) claim 1 , Hydro Fluoro Olefins (HFO's) claim 1 , (cyclo)-alkanes such as (cyclo)-pentane and/or noble gases such as krypton claim 1 , argon and xenon.4. The method according to claim 1 , wherein the liquid in the autoclave is reactive or non-reactive towards the non-expanded thermoplastic polymer material.5. The method ...

Process for making a flexible polyurethane foam

Process for making a flexible polyurethane foam by reacting a polyisocyanate and a polyol composition in the presence of water, a reactive amine catalyst and a specific metal salt. The foams have a low level of volatile organic compounds (VOCs) and a desirable combination of mechanical and durability properties.

ISOCYANATE BASED ORGANIC XEROGELS WITH REDUCED DENSITY

A synthesis method for making an isocyanate based organic xerogel having a low density (i.e. <400 kg/m) and a small pore size (<150 nm) in combination with a specific surface area >100 m/g is disclosed. 1. A synthesis method for making an isocyanate based organic xerogel thereby avoiding or reducing gel shrinkage during the solvent removal step , said method comprises at least the following steps:a) providing a polyisocyanate composition, and comprising isocyenates;b) optionally providing an isocyanate reactive composition;c) optionally providing at least one catalyst compound promoting a polyurethane and/or polyurea and/or polyisocyanurate formation;d) providing an organic solvent composition that is not reactive towards the isocyenates;e) optionally providing further additives;f) combining compositions/compounds a), d) and optionally b) and/or c) and/or e) to form a gel comprising a porous cross-linked polyurethane and/or polyurea and/or polyisocyanurate network wherein the pores of the porous cross-linked network or filled with solvent;g) optionally removing unreacted species;h) exchanging the solvent with water; andi) drying the porous network under subcritical conditions in order to remove the water and obtain the isocyanate based organic xerogel.2. The method according to claim 1 , further comprising after step f claim 1 , a step wherein the obtained gel is a monolithic gel which is optionally broken or grinded into particles having smaller dimensions.3. The method according to claim further comprising after step f claim 1 , a step comprising aging the gel.4. The method according to wherein the isocyanates are selected from the group consisting of aliphatic isocyanates claim 1 , aromatic isocyanates claim 1 , and mixtures thereof.5. The method according to claim 1 , wherein the isocyanate reactive composition is selected from the group consisting of aliphatic and aromatic monoamine/polyamine compounds claim 1 , aromatic and aliphatic polyether and/or polyester ...

Isocyanate based organic xerogels with reduced density

The synthesis method avoiding or reducing gel shrinkage during the solvent removal step is characterized by the step wherein the organic solvent used to synthesize the isocyanate based organic xerogel is replaced by water such that during the solvent removal step only water needs to be removed to dry the porous network and to obtain the isocyanate based organic xerogel.

Optical Fibre Cleaving Device

A mechanism for cleaving optical fibres, comprising fibre cleaving means and gripping members arranged to grip an optical fibre and to apply a pulling force to put the fibre under tension whist the fibre is cleaved, wherein the gripping member(s) C are arranged to eject a cleaved-off part of the fibre F into a receptacle 49 once the fibre has been cleaved, and/or the fibre F is bent during cleaving by means of a rotatable double anvil 47 widely separated from the gripping members.

IN-SITU FORMATION OF LOW DENSITY THERMOPLASTIC POLYURETHANE FLEXIBLE FOAMS

A reactive mixture and method for making a thermoplastic polyurethane (TPU) flexible foam having a predominantly open-cell structure (open-cell content of ≥50% by volume calculated on the total volume of the foam and measured according to ASTM D6226-10) and an apparent density below 200 kg/m.

Optical Cable Testing

Method for testing optical fibre connection quality of an optical drop fibre between a telecommunications system and a subscriber connection box in a multi-dwelling unit or other subscriber premises before connection to other subscriber equipment comprises placing the end of the optical fibre to be tested in a fibre-holding device, which holds the fibre end in alignment with a suitable reflective body; providing an optical signal from the system direction which is reflected by the said reflective body back towards the system; and detecting the reflected signal by a suitable instrument, preferably an optical time domain reflectometer (OTDR), to confirm acceptable signalling quality of the optical path between the system and the fibre end.

Reinforced organic natural fiber composites

A reinforced organic natural fiber composite material having a lambda value in the range 15-35 mW/m·K is disclosed which comprises 25-85% by weight hydrophobic nanoporous particles calculated on the total weight of the composite material, at least 10% by weight organic natural fibers having isocyanate reactive groups calculated on the total weight of the composite material and 1-15% by weight binder selected from a polyurea/polyurethane comprising binder made from emulsifiable polyisocyanate, water and surfactants.

Portable device for attaching a connector to an optical fiber

A portable device for attaching a connector to an optical fiber, the optical fiber having an end, the device comprising means for receiving the optical fiber at the end of the optical fiber; and a connector station for autonomously attaching the connector to the optical fiber.

LONG TERM IMPROVEMENT OF THERMAL INSULATION VALUES IN RIGID POOLYISOCYANURATE/POLYURETHANE COMPRISING INSULATION FOAMS

Polyisocyanurate (PIR) and/or polyurethane (PUR) comprising insulation foams having significantly improved long term insulation values are disclosed as well as a processing method to fabricate said improved insulation foams and use of the improved insulation foams for thermal insulation. 2. The foam according to claim 1 , wherein the molar % COin the stabilized aged foam is between calculated on the total moles of COand physical blowing agents in the stabilized aged foam.3. The foam according to wherein the amount of residual scavenging compound in the stabilized aged foam is between 0 and 5 wt % calculated on the total weight of the stabilized aged foam.4. The foam according to claim 1 , wherein the molar % COin the stabilized aged foam is between 0 and 27% calculated on the total moles of COand physical blowing agents in the stabilized aged foam claim 1 , and the amount of residual scavenging compounds in the stabilized aged foam is between 0 and 3 wt % calculated on the total weight of the stabilized aged foam.5. The foam according to wherein the gas diffusion tight sealing is selected from a gas barrier polymeric resin layer and wherein at least 90% claim 1 , of the foam surfaces are covered with the gas diffusion tight sealing.6. The foam according to claim 1 , wherein the gas diffusion tight sealing is selected from metal foil and wherein 50-95% of the foam surfaces are covered with the gas diffusion tight sealing.7. The foam according to claim 1 , wherein the blowing agents comprise HFOs blowing agents and/or HCFOs blowing agents and/or hydrocarbon blowing having a lambda gas value ≤12 mW/m·K at 10° C. and mixtures thereof.8. The foam according to claim 1 , wherein the blowing agents is selected from the group consisting of cis 1 claim 1 ,1 claim 1 ,1 claim 1 ,4 claim 1 ,4 claim 1 ,4-hexafluorobut-2-ene claim 1 , and/or trans 1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene claim 1 , or combinations thereof.9. The foam according to claim 1 , wherein the ...

PORTABLE DEVICE FOR ATTACHING A CONNECTOR TO AN OPTICAL FIBER

A portable device for attaching a connector to an optical fiber, the optical fiber having an end, the device comprising means for receiving the optical fiber at the end of the optical fiber; and a connector station for autonomously attaching the connector to the optical fiber. 1. A portable device for attaching a connector to an optical fiber , said optical fiber having an end , said end having an end face , the device comprising:means for receiving said optical fiber at said end of said optical fiber;a connector station for autonomously attaching said connector to said optical fiber.3. The portable device according to wherein said device is hand-held.4. The portable device according to wherein said at least one station is a plurality of stations for performing a plurality of operations on said optical fiber; each particular station out of said plurality of stations being adapted for autonomously performing at least one operation out of said plurality of operations; wherein said plurality of operations comprises a stripping operation claim 2 , a cleaning operation claim 2 , a tensile test claim 2 , a cleaving operation and a heat treatment of said end face.5. The portable device according to wherein said at least one station comprises a station for performing a combination of operations selected from the group consisting of a first combination and a second combination claim 2 , wherein said first combination is a combination of a stripping operation and a cleaning operation and wherein said second combination is a combination of a tensile test and a cleaving operation.6. The portable device according to further comprising means for pulling said optical fiber into said device.7. The portable device according to further comprising claim 4 , for each said particular station out of said plurality of stations claim 4 , means for aligning said optical fiber with respect to said particular station.8. The portable device according to wherein said optical fiber has a fiber ...

Portable device for attaching a connector to an optical fiber

A portable device for attaching a connector to an optical fiber, the optical fiber having an end, the device comprising means for receiving the optical fiber at the end of the optical fiber; and a connector station for autonomously attaching the connector to the optical fiber.

Fiber optic connector having an optical fiber that is axially moveable within a ferrule

A fiber optic connector ( 20 ) including a ferrule ( 42 ) having a front end ( 48 ) and a rear end ( 50 ). The ferrule ( 42 ) defines an axial bore ( 46 ) that extends through the ferrule ( 42 ) between the front end ( 48 ) and the rear end ( 50 ). The ferrule ( 42 ) includes a ferrule axis ( 64 ) that extends along the axial bore ( 46 ). The fiber optic connector ( 20 ) includes an optical fiber ( 62 ) positioned within the axial bore ( 46 ) that is movable relative to the ferrule ( 42 ) within the axial bore ( 46 ) along the ferrule axis ( 64 ). The optical fiber ( 62 ) has fiber end face ( 63 ) that has been energy treated to round the fiber end face ( 63 ). A fiber alignment structure ( 66 ) can be attached at a front ferrule end face ( 54 ) of the ferrule ( 42 ). A camera can be used to position a fiber end face ( 63 ) of the optical fiber ( 62 ) relative to the front ferrule end face ( 54 ) of the ferrule ( 42 ).

LOW VISCOSITY (METH)ACRYLATES AS REACTIVE ADDITIVES IN REACTIVE COMPOSITIONS FOR MAKING RIGID POLYURETHANE/POLYISOCYANURATE COMPRISING FOAMS

A reactive composition is disclosed for making a polyisocyanurate-polyurethane comprising rigid foam (PIR-PUR), said reactive composition comprising a polyisocyanate composition, an isocyanate-reactive composition, at least one catalyst compound suitable for making the PIR-PUR comprising foam, at least one blowing agent; and optionally one or more surfactants, one or more flame retardants, one or more antioxidants, or combinations thereof characterized in that the reactive composition further comprises a reactive viscosity reducer selected from at least one acrylate and/or methacrylate compound having no isocyanate-reactive groups and having a viscosity at 25° C. below 100 mPa·s.

(SUPER)HYDROPHOBIC ISOCYANATE BASED POROUS MATERIALS

A (super)hydrophobic isocyanate based organic aerogel/xerogel/cryogel having a water contact angle of at least 90° comprising: 1. A process for making a hydrophobic isocyanate based organic aerogel/xerogel/cryogel having water repellent properties , and a water contact angle >90° , wherein the aerogel/xerogel/cryogel comprises a cross-linked porous network structure comprising: polyurethane , polyisocyanurate , and/or polyuria polyurea , or combination thereof; and a hydrophobic compound , covalently bonded within the porous network , said process comprising:a) providing a poly-isocyanate compound;b) optionally, providing an isocyanate-reactive compound;c) optionally, polyurethane, polyurea, a polyisocyanurate formation;d) providing a solvent composition;e) providing a hydrophobic compound having a solubility in water <10 g/L, at least 1 isocyanate-reactive group, and no isocyanate groups, said compounds being different from b) and are able to impart hydrophobicity to the aerogels/xerogels/cryogels obtained in step j);f) optionally, providing further additives;g) combining the compounds of a), d), e) and optionally b) and/or c) polyurea or polyisocyanurate network having hydrophobic compounds covalently bonded in the network, wherein the hydrophobic compound are covalently bonded during this step;h) optionally, removing unreacted species;i) optionally, exchanging solvent;removing the solvent from the porous network in order to obtain the hydrophobic isocyanate based organic aerogel/xerogel/cryogel2. The process according to claim 1 , wherein the hydrophobic aerogel/xerogel/cryogel comprises superhydrophobic properties and a water contact angle >150°.3. The process according to claim 1 , wherein the hydrophobic aerogel/xerogel/cryogel comprises:50-99.9% by weight polyurethane, polyisocyanurate, or polyurea calculated on the total dry weight of the hydrophobic aerogel/xerogel/cryogel, and0.1 to 30% by weight hydrophobic compounds calculated on the total dry weight of ...

PORTABLE DEVICE FOR ATTACHING A CONNECTOR TO AN OPTICAL FIBER

A portable device for attaching a connector to an optical fiber, the optical fiber having an end, the device comprising means for receiving the optical fiber at the end of the optical fiber; and a connector station for autonomously attaching the connector to the optical fiber. 123.-. (canceled)24. A method for mechanically connecting a first and a second optical fiber connector , the first optical fiber connector comprising a first optical fiber having a first bare end and comprising a core and a cladding surrounding the core , the method comprising the steps of:mechanically cleaving the first bare end to form a first end face of the first bare end; andheat treating the first end face.25. The method of claim 24 , wherein the cladding has a radius of curvature obtained by a heat treatment of the first end face.26. The method of claim 25 , wherein the heat treatment is an electric arc treatment.27. The method of claim 24 , wherein the core has a radius of curvature at the first end face in the range from 0.14 mm to 4 mm.28. The method of claim 27 , wherein the radius of curvature of the core is smaller than a radius of curvature of the cladding.29. The method of claim 24 , wherein the core protrudes from the cladding with a protrusion height in the range from 10 to 200 nm.30. The method of claim 24 , wherein the first optical fiber has an axis and wherein the first end face makes an angle with respect to a plane perpendicular to the axis claim 24 , and wherein the angle is in the range from 5° to 50°.31. The method of claim 24 , further comprising an adapter for connecting the first and said second optical fiber connectors.32. A method for attaching a connector to an optical fiber by means of a portable tool claim 24 , the optical fiber having a core and a cladding surrounding the core claim 24 , the method comprising the steps of:receiving the optical fiber by the portable tool at an end of said optical fiber;coupling a connector station of the portable tool to the ...

REINFORCED ORGANIC NATURAL FIBER COMPOSITES

A reinforced organic natural fiber composite material having a lambda value in the range 15-35 mW/m·K is disclosed which comprises 25-85% by weight hydrophobic nanoporous particles calculated on the total weight of the composite material, at least 10% by weight organic natural fibers having isocyanate reactive groups calculated on the total weight of the composite material and 1-15% by weight binder selected from a polyurea/polyurethane comprising binder made from emulsifiable polyisocyanate, water and surfactants. 2. The composite material according to wherein the composite material comprises 25-85% by weight claim 1 , hydrophobic nanoporous particles calculated on the total weight of the dried and cured composite material.3. The composite material according to wherein the composite material comprises 10-70% by weight claim 1 , preferably 10-60% by weight and more preferably 10-50% by weight organic natural fibers having isocyanate reactive groups calculated on the total weight of the dried and cured composite material.4. The composite material according to wherein the composite material comprises 1-15% by weight claim 1 , binder calculated on the total weight of the dried and cured composite material.5. The composite material according to wherein the nanoporous particles are aerogel particles based on oxides claim 1 , and/or metal oxides wherein the metal is selected from alumina claim 1 , titanium and/or zirconium oxides which are optionally organo-modified.6. The composite material according to wherein the nanoporous particles have the following parameters:Porosity: 50 to 99%,{'sup': '3', 'Density: lower than 300 kg/m,'}Particle diameter: from 0.001 to 10 mm,Pore diameter: 0.1 to 500 nm,7. The composite material according to wherein the nanoporous particles are aerogel particles which are organo-modified with hydrophobic groups claim 1 , are based on silicon dioxide (SiO) and have lambda values under atmospheric pressure in the range 9-12 mW/m·K at 25° C. ...

PORTABLE DEVICE FOR ATTACHING A CONNECTOR TO AN OPTICAL FIBER

A portable device for attaching a connector to an optical fiber, the optical fiber having an end, the device comprising means for receiving the optical fiber at the end of the optical fiber; and a connector station for autonomously attaching the connector to the optical fiber. 1. A method for evacuating debris from an optical fiber , the method comprising the steps of:covering the optical fiber with a tape;trapping the debris between the tape, in the form of a tape sandwich; anddriving the tape, thus evacuating the tape sandwich.2. A method for evacuating debris from an optical fiber , the method comprising the steps of:covering the optical fiber with a first tape and a second tape;trapping the debris between the first tape and the second tape, in the form of a two-tape sandwich; anddriving the first tape and the second tape, thus evacuating the two-tape sandwich.3. The method of claim 1 , further comprising folding the tape along its longitudinal axis to form the tape sandwich.4. The method of claim 1 , further comprising folding two different longitudinal portions of the tape over creating a fold transverse to the tape to form the tape sandwich.5. The method of claim 1 , further comprising conducting an operation on the optical fiber thereby generating the debris.6. The method of claim 2 , further comprising conducting an operation on the optical fiber thereby generating the debris.7. The method of claim 5 , wherein the operation is a stripping operation claim 5 , a cleaning operation claim 5 , or a cleaving operation.8. The method of claim 6 , wherein the operation is a stripping operation claim 6 , a cleaning operation claim 6 , or a cleaving operation.9. The method of claim 1 , further comprising guiding the tape.10. The method of claim 2 , further comprising guiding the first tape and the second tape.11. The method of claim 2 , wherein the first tape and the second tape are each adhesive over an entire side.12. The method of claim 2 , wherein the first tape is ...

CONNECTOR FOR AN OPTICAL FIBER AND COMBINATIONS, KITS, AND METHODS OF USING THE SAME

A portable device for attaching a connector to an optical fiber, the optical fiber having an end, the device comprising means for receiving the optical fiber at the end of the optical fiber; and a connector station for autonomously attaching the connector to the optical fiber. 175-. (canceled)76. An optical fiber connector for mechanical connection to another optical fiber connector , the optical fiber connector comprising:an optical fiber having a bare end, the bare end including an end face and further including a core and a cladding surrounding the core;wherein the cladding has a radius of curvature at the end face in a range from 0.4 millimeter to 4 millimeters.77. An optical fiber connector for mechanical connection to another optical fiber connector , the optical fiber connector comprising:an optical fiber having a bare end, the bare end including an end face and further including a core and a cladding surrounding the core;wherein the core protrudes from the cladding with a protrusion height in a range from 10 nanometers to 200 nanometers.78. The optical fiber connector of claim 77 , wherein the core protrudes from the cladding with the protrusion height in a range from 10 nanometers to 150 nanometers.79. The optical fiber connector of claim 77 , wherein the core protrudes from the cladding with the protrusion height in a range from 30 nanometers to 60 nanometers.80. The optical fiber connector of claim 76 , wherein the optical fiber connector is attached to the optical fiber claim 76 , the optical fiber connector further comprising:a connector body;a fiber attachment element inserted in the connector body; anda thermoformable material attaching the optical fiber to the fiber attachment element;wherein the thermoformable material has a processing temperature; andwherein the connector body is made from one or more materials having a weakening temperature below the processing temperature.81. The optical fiber connector of claim 76 , wherein the optical fiber ...

FIBER OPTIC CONNECTOR HAVING AN OPTICAL FIBER THAT IS AXIALLY MOVEABLE WITHIN A FERRULE

A fiber optic connector () including a ferrule () having a front end () and a rear end (). The ferrule () defines an axial bore () that extends through the ferrule () between the front end () and the rear end (). The ferrule () includes a ferrule axis () that extends along the axial bore (). The fiber optic connector () includes an optical fiber () positioned within the axial bore () that is movable relative to the ferrule () within the axial bore () along the ferrule axis (). The optical fiber () has fiber end face () that has been energy treated to round the fiber end face (). A fiber alignment structure () can be attached at a front ferrule end face () of the ferrule (). A camera can be used to position a fiber end face () of the optical fiber () relative to the front ferrule end face () of the ferrule (). 1. (canceled)2. A method for assembling a fiber optic connector , the fiber optic connector including a ferrule having a front end and a rear end , the ferrule defining an axial bore that extends through the ferrule between the front end and the rear end , the ferrule including a ferrule axis that extends along the axial bore , the fiber optic connector including an optical fiber positioned within the axial bore that is movable relative to the ferrule within the axial bore along the ferrule axis , the fiber optic connector also including a connector body in which the ferrule is mounted , the method comprising:inserting the optical fiber in the axial bore; andaligning a fiber end face of the optical fiber within the axial bore at a front ferrule end face including radially biasing the optical fiber.3. The method of claim 2 , wherein radially biasing the optical fiber includes sliding the optical fiber through a fiber alignment structure disposed at the front ferrule end face.4. The method of claim 3 , wherein the fiber alignment structure is fully disposed within an outer diameter of the ferrule.5. The method of claim 4 , wherein the fiber alignment structure ...

FIBER OPTIC CONNECTOR HAVING AN OPTICAL FIBER THAT IS AXIALLY MOVEABLE WITHIN A FERRULE

A fiber optic connector () including a ferrule () having a front end () and a rear end (). The ferrule () defines an axial bore () that extends through the ferrule () between the front end () and the rear end (). The ferrule () includes a ferrule axis () that extends along the axial bore (). The fiber optic connector () includes an optical fiber () positioned within the axial bore () that is movable relative to the ferrule () within the axial bore () along the ferrule axis (). The optical fiber () has fiber end face () that has been energy treated to round the fiber end face (). A fiber alignment structure () can be attached at a front ferrule end face () of the ferrule (). A camera can be used to position a fiber end face () of the optical fiber () relative to the front ferrule end face () of the ferrule (). 1. A fiber optic connector comprising:a ferrule having a front end and a rear end, the ferrule defining an axial bore that extends through the ferrule between the front end and the rear end, the ferrule including a ferrule axis that extends along the axial bore;an optical fiber positioned within the axial bore that is movable relative to the ferrule within the axial bore along the ferrule axis;characterized in that the ferrule includes a fiber alignment structure attached at front ferrule end face of the ferrule.2. The fiber optic connector of claim 1 , wherein the fiber alignment structure has an elastic construction when the optical fiber is inserted through a fiber passage of the fiber alignment structure.3. The fiber optic connector of claim 2 , wherein the fiber alignment structure has an elastic construction that allows at least portions of the alignment structure to elastically move in general radial orientations relative to a fiber insertion axis that extends through the fiber passage.4. The fiber optic connector of claim 3 , wherein the fiber insertion axis generally aligns with the ferrule axis.5. The fiber optic connector of claim 3 , wherein the ...

Optical fibre cleaving device.

Un mecanismo para partir fibras opticas, que comprende medios partidores de fibra y medios de sujecion, dispuestos para sujetar una fibra optica y para aplicar una fuerza de traccion para poner bajo tension la fibra mientras se esta partiendo la fibra; donde el miembro o los miembros sujetadores C estan dispuestos para eyectar una parte desprendida de la fibra F hacia un receptaculo 49, una vez que se ha partido la fibra, y/o la fibra F es doblada durante la operacion de partir, por medio de un doble yunque 47 giratorio, ampliamente separado de los miembros de sujecion.

Optical fibre cleaving device

Novel crystalline foam

Crystalline foam and process for making it by first creating a crystalline arrangement of gas bubbles in a curable composition and allowing this composition to cure subsequently.

mechanism for splitting optical fibers

MECANISMO PARA DIVIDIR FIBRAS óTICAS. A presente invenção refere-se a um mecanismo para dividir fibras óticas, compreendendo dispositivo de divisão de fibra (5) e elementos de fixação dispostos para fixar uma fibra ótica e aplicar uma força de fracionamento para colocar a fibra sob tensão enquanto a fibra é dividida, em que o(s) elemento(s) de fixação (C) é/são disposto(s) para ejetar uma parte dividida da fibra (F) em um receptáculo (49) uma vez que a fibra foi dividida, e/ou a fibra (F) é dobrada durante a divisão por meio de uma bigorna dupla giratória (47) largamente separada dos elementos de fixação. MECHANISM FOR DIVIDING OPTICAL FIBERS. The present invention relates to a fiber splitting mechanism comprising fiber splitting device (5) and fasteners arranged to secure an optical fiber and apply a fractional force to tension the fiber while the fiber is split. wherein the fastener (s) (C) is / are arranged to eject a split portion of the fiber (F) into a receptacle (49) once the fiber has been split, and / or the fiber (F) is bent during splitting by means of a widely rotating double anvil (47) widely separated from the fasteners.

Functionalized isocyanate based porous materials

Novel crystalline foam

Crystalline foam and process for making it by first creating a crystalline arrangement of gas bubbles in a curable composition and allowing this composition to cure subsequently.

Optical fibre cleaving device

A mechanism for cleaving optical fibres, comprising fibre cleaving means and gripping members arranged to grip an optical fibre and to apply a pulling force to put the fibre under tension whilst the fibre is cleaved, wherein the gripping member(s) C are arranged to eject a cleaved-off part of the fibre F into a recpetacle 49 once the fibre has been cleaved, and/or the fibre F is bent during cleaving by means of a rotatable double anvil 47 widely separated from the gripping members.

Method for producing expanded thermoplastic polymers

An improved process for fabricating expanded thermoplastic polymers (eTP) starting from non-expanded TP is disclosed whereby said process has improved thermal control, uses preferably environmentally friendly foaming gasses, avoids anisotropy and sticking of the eTP during the processing and minimises the duration of the charging step.

Process for dyeing and foaming thermoplastic polyurethane

A process for the preparation of coloured and expanded thermoplastic polyurethane (coloured ETPU) material which comprises the following steps: a) providing thermoplastic polyurethane (TPU) material and at least one gaseous fluid wherein the melting temperature of the TPU material is above the supercritical temperature of the at least one gaseous fluid; b) placing the TPU material in an autoclave together with a colorant and/or a fluorescent whitening agent (FWA), wherein the colorant is selected from at least one of a disperse dye, an acid dye and a pigment; c) increasing the pressure in the autoclave by introducing the at least one gaseous fluid at a temperature below the melting point of the TPU material and at least above the supercritical temperature of the at least one gaseous fluid at the applied pressure (saturation step); and d) allowing the non-expanded TPU material to saturate; and e) decreasing the pressure in the autoclave down to ambient pressure at a temperature between the melting temperature and the glass transition temperature (Tg) of the TPU material at such a rate that the TPU material expands (expansion step) to obtain coloured ETPU material; f) removing the coloured ETPU material from the autoclave.

Optical fibre cleaving device

A mechanism for cleaving and splicing optical fibres, comprising gripping members 41, 60 ( Figs. 7, 14 ) arranged to grip an optical fibre and to apply a pulling force to put the fibre under tension whilst the fibre is cleaved, and fibre cleaving means by which the fibre F is bent during cleaving by means of a rotatable double anvil 1, 2 ( Fig.13 ) widely separated from the gripping members. Preferably the gripping member(s) are arranged to eject a cleaved-off part of the fibre F into a receptacle 49 ( Fig. 7 ) once the fibre has been cleaved.

Device for installing an optical fibre in a connector

Polyisocyanurate comprising foams with long cream time and snap-cure behaviour

organic airgel / sherogel / cryogel, process for producing organic airgel / sherogel / cryogel, and, use of xerogels / airgel / cryogels

aerogel/xerogel/criogel orgânico à base de isocianato funcionalizado compreendendo:- uma estrutura de rede porosa reticulada constituída de poliuretano e/ou poli-isocianurato e/ou poliureia, compreendendo, sobre a superfície de seu poro, antes da funcionalização, grupos reativos (b) e - moléculas de funcionalização tendo uma solubilidade em água <10g/l a 20oc ligadas quimicamente à superfície do poro da estrutura de rede porosa reticulada em que referidas moléculas têm, pelo menos, um grupo reativo (a) sendo capaz de se ligar à referida superfície de poro (por reação com grupos (b)) e, pelo menos, um grupo funcional (c) conferindo à superfície de poros a funcionalização desejada. functionalized isocyanate-based organic airgel / xerogel / cryogel comprising: - a cross-linked porous network structure consisting of polyurethane and / or polyisocyanurate and / or polyurea, comprising reactive groups on the pore surface thereof ( b) e - functionalizing molecules having a water solubility <10g / l and 20oc chemically linked to the pore surface of the cross-linked porous network structure wherein said molecules have at least one reactive group (a) being capable of binding to the pore. said pore surface (by reaction with groups (b)) and at least one functional group (c) giving the pore surface the desired functionalization.

In-situ formation of low density thermoplastic polyurethane flexible foams

A reactive mixture and method for making a thermoplastic polyurethane (TPU) flexible foam having a predominantly open-cell structure (open-cell content of = 50 % by volume calculated on the total volume of the foam and measured according to ASTM D6226-10) and an apparent density below 200 kg/m3.

method for producing expanded thermoplastic polymeric material.

um processo melhorado para fabricar polímeros termoplásticos expandidos (etp) começando de tp não expandido é divulgado, em que o dito processo tem controle térmico melhorado, usa preferivelmente gases de formação de espuma ecológicos, evita a anisotropia e aderência do etp durante o processamento e minimiza a duração da etapa de carregamento. An improved process for manufacturing expanded thermoplastic polymers (etp) starting from unexpanded tp is disclosed, wherein said process has improved thermal control, preferably uses environmentally friendly foaming gases, avoids anisotropy and adherence of etp during processing and minimizes the duration of the loading step.

crystalline foam, and process for preparing a crystalline foam.

Polyisocyanurate comprising foams with long cream time and snap-cure behaviour

A reaction mixture and a process for making a polyisocyanurate comprising rigid foam having a density in the range 50-500 kg/m3 is disclosed, said process having a cream time > 35 seconds and a snap cure behaviour.

process for the preparation of colored and expanded thermoplastic polyurethane material, and use of a colored or optically brightened etpu material.

um processo para a preparação de material de poliuretano termoplástico colorido e expandido (etpu colorido) que compreende as seguintes etapas: a) prover material de poliuretano termoplástico (tpu) e pelo menos um fluido gasoso em que a temperatura de fusão do material de tpu está acima da temperatura supercrítica do pelo menos um fluido gasoso, b) colocar o material de tpu em uma autoclave junto com um colorante e/ou um agente branqueador fluorescente (fwa), em que o colorante é selecionado dentre, pelo menos, um de um corante disperso, um corante ácido e um pigmento; c) aumentar a pressão na autoclave por introdução de pelo menos um fluido gasoso a uma temperatura abaixo do ponto de fusão do material de tpu e pelo menos acima da temperatura supercrítica do pelo menos um fluido gasoso na pressão aplicada (etapa de saturação); d) deixar o material de tpu não expandido saturar; e e) diminuir a pressão na autoclave até a pressão ambiente a uma temperatura entre a temperatura de fusão e a temperatura de transição vítrea (tg) do material de tpu a uma taxa tal que o material de tpu expande (etapa de expansão) para obter material de etpu colorido, f) remover o material de etpu colorido da autoclave.

Process for making a flexible polyurethane foam

Process for making a flexible polyurethane foam by reacting a polyisocyanate and a polyol composition in the presence of water, a reactive amine catalyst and a specific metal salt. The foams have a low level of volatile organic compounds (VOCs) and a desirable combination of mechanical and durability properties

Portable device for attaching a connector to an optical fiber and method

A portable device for attaching a connector to an optical fiber, the optical fiber having an end, the device comprising means for receiving the optical fiber at the end of the optical fiber; and a connector station for autonomously attaching the connector to the optical fiber.

Functionalized isocyanate based porous materials

Crystalline foam

Crystalline foam and process for making it by first creating a crystalline arrangement of gas bubbles in curable composition and allowing this composition to cure subsequently.

Optical fibre cleaving device

An optical fibre cleaving mechanism 5 comprising optical fibre cleaving means, and gripping members 41 arranged so as to grip the optical fiber 9 and keep it under tension while the end of the optical fiber is cleaved. The cut off end of the optical fibre is then ejected by the gripping mechanism 41.

insulation foam, method for making insulation foam, and use of insulation foam

ESPUMA DE ISOLAMENTO, MÉTODO PARA FAZER A ESPUMA DEISOLAMENTO, E, USO DE ESPUMA DE ISOLAMENTO. Espumas de isolamento compreendendo poli-isocianurato (PIR) e/ou poliuretano (PUR) tendo valores de isolamento de longo prazo significativamente melhorados são descritos, bem como um método de processamento para fabricar as ditas espumas de isolamento melhoradas e uso das espumas de isolamento melhoradas para isolamento térmico. INSULATION FOAM, METHOD FOR MAKE DEMOLISHING FOAM, AND, USE OF INSULATING FOAM. Insulation foams comprising polyisocyanurate (PIR) and / or polyurethane (PUR) having long term insulation values significantly improved are described, as well as a method of processing to manufacture said improved insulation foams and use of improved insulation foams for thermal insulation.

Optical fibre cleaving device

An optical fibre cutting device comprises a blade, clamps to hold the optical fibre under tension while the fibre is being cut and a fibre deflecting member. The fibre deflecting member comprises a double anvil block with one anvil placed on either side of the fibre F. The fibre F is extended across the anvils, and the anvils are then rotated in the plane of the fibre F so that the fibre F is bent across the corners of the anvils. The fibre F is thus held under tension while being cut. (62) Divided Out of 561104

Homogeneous foam

Flame, smoke and toxicity retardant composition for use in polyurethane/polyisocyanurate comprising foams

A reactive mixture comprising a Fire, Smoke and Toxicity retardant (FST) composition for making a polyisocyanurate and/or polyurethane (PIR/PUR) comprising material, said FST composition comprising: a) at least one compound having at least one ethylenically unsaturated moiety having a number average equivalent weight < 160 g/mol, and b) optionally one or more radical initiator compound characterized in that the onset temperature for radical polymerization (T

Vorrichtung zur durchtrennung optischer fasern

Vorrichtung zur spaltung optischer fasern

Flexible and semi-rigid polyimide comprising foams with superior heat resistance

The present invention relates to reactive mixtures and processes for forming isocyanate based flexible and semi-rigid polyimide comprising foams which have high temperature resistance with good acoustic properties.

Isocyanate based organic xerogels with reduced density

Thermoplastic polyurethane materials having good elastic recovery and low softening temperature

The present invention relates to soft thermoplastic polyurethane materials with very good elastic recovery properties (> 92%) in combination with low softening points and good adhesive properties towards supporting materials such as textile.

A method for improving the flame, smoke and/or toxicity retardancy in polyisocyanurate / polyurethane (pir/pur) comprising materials

A polyisocyanurate and/or polyurethane (PIR/PUR) comprising material having improved Flame, Smoke and/or Toxicity (FST) retardancy is disclosed and a method for forming said PIR/PUR comprising material. The PIR/PUR material is comprising at least 0.2 wt % of compounds having a number average equivalent weight <160 g/mol and at least one non-polymerized ethylenically unsaturated moiety based on the total weight of the PIR/PUR comprising material, and optionally 0.01 wt % up to 1 wt % of one or more radical initiator compounds based on the total weight of the PIR/PUR comprising material.

(met)acrilatos de baja viscosidad como aditivos reactivos en composiciones reactivas para formar espumas rígidas que comprenden poliuretano / poliisocianurato

Se divulga una composición reactiva para formar una espuma rígida que comprende poliisocianurato-poliuretano (PIR-PUR), en donde dicha composición reactiva comprende una composición de poliisocianato, una composición reactiva con isocianato, al menos un compuesto catalizador adecuado para formar la espuma que comprende PIR-PUR, al menos un agente de expansión; y opcionalmente uno o más agentes tensioactivos, uno o más retardantes de llama, uno o más antioxidantes, o combinaciones de los mismos, en donde la composición reactiva además comprende un agente reductor de la viscosidad reactivo seleccionado entre al menos un compuesto de acrilato y/o metacrilato que no tiene grupos reactivos con isocianato, y que tiene una viscosidad a 25ºC inferior a 100 mPa.s.

(super)hydrophobic isocyanate based porous materials

A (super)hydrophobic isocyanate based organic aerogel/xerogel/cryogel having water repellent properties and a water contact angle > 90° is provided, comprising: - a cross-linked porous network structure made of polyurethane and/or polyisocyanurate and/or polyurea, and - hydrophobic compounds, characterized in that said hydrophobic compounds are covalently bonded within the porous network of the aerogel/xerogel/cryogel, wherein said bondings were created during the gelling step of the formation of the isocyanate based organic aerogel/xerogel/cryogel cross-linked porous network structure, said hydrophobic compounds having before the gelling step at least one isocyanate-reactive group and no isocyanate groups.

Material compreendendo poli-isocianurato e/ou poliuretano, método para melhorar o retardamento de chama, fumaça e/ou toxicidade, e, uso do material compreendendo poli-isocianurato e/ou poliuretano campo da invenção

MATERIAL COMPREENDENDO POLI-ISOCIANURATO E/OU POLIURETANO, MÉTODO PARA MELHORAR O RETARDAMENTO DE CHAMA, FUMAÇA E/OU TOXICIDADE, E, USO DO MATERIAL COMPREENDENDO POLI-ISOCIANURATO E/OU POLIURETANO. É descrito um material compreendendo poli-isocianurato e/ou poliuretano (PIR/PUR) com melhor retardamento de chama, fumaça e/ou toxicidade (FST), e um método para formar o dito material compreendendo PIR/PUR. O material PIR/PUR compreende pelo menos 0,2% em peso de compostos com um peso equivalente médio numérico < 160 g/mol, e pelo menos uma fração etilenicamente insaturada não polimerizada, com base no peso total do material compreendendo PIR/PUR e, opcionalmente 0,01% em peso até 1% em peso de um ou mais compostos iniciadores de radical, com base no peso total do material compreendendo PIR/PUR.

Formacion in situ de espumas flexibles de poliuretano termoplastico de baja densidad.

Una mezcla reactiva y método para fabricar una espuma flexible de poliuretano termoplástico (TPU) que tiene una estructura predominantemente de celdas abiertas, (contenido de celdas abiertas de = 50% en volumen calculado sobre el volumen total de la espuma y medido de acuerdo con la norma ASTM D6226-10), y una densidad aparente inferior a 200 kg/m3.

(met)acrilatos de baja viscosidad como aditivos reactivos en composiciones reactivas para elaborar espumas rigidas que comprenden poliuretano/poliisocianurato.

Se describe una composición reactiva para elaborar una espuma rígida que comprende poliisocianurato-poliuretano (PIR-PUR), comprendiendo dicha composición reactiva una composición de poliisocianato, una composición reactiva con isocianato, por lo menos un compuesto catalizador adecuado para elaborar la espuma que comprende PIR-PUR, por lo menos un agente de soplado; y opcionalmente uno o más agentes tensioactivos, uno o más retardadores de llama, uno o más antioxidantes o combinaciones de los mismos, caracterizada porque la composición reactiva comprende además un reductor de viscosidad reactivo seleccionado de por lo menos un compuesto de acrilato y/o metacrilato que no tiene grupos reactivos con isocianato, y que tiene una viscosidad a 25°C por debajo de 100 mPa.s.

Un metodo para mejorar el retardo de llama, humo y/o toxicidad en materiales que comprenden poliisocianurato/poliuretano (pir/pur).

Se describe un material que comprende poliisocianurato y/o poliuretano (PIR/PUR) que tiene un retardo mejorado de llama, humo y/o toxicidad (FST), y un método para formar dicho material que comprende PIR/PUR. El material PIR/PUR comprende al menos un 0.2% en peso de compuestos que tienen un peso equivalente promedio en número < 160 g/mol y al menos una porción etilénicamente insaturada no polimerizada basado en el peso total del material que comprende PIR/PUR, y opcionalmente de 0.01% en peso hasta 1% en peso de uno o más compuestos iniciadores de radicales en base al peso total del material que comprende PIR/PUR.

A method for improving the flame, smoke and/or toxicity retardancy in polyisocyanurate / polyurethane (pir/pur) comprising materials

A polyisocyanurate and/or polyurethane (PIR/PUR) comprising material having improved Flame, Smoke and/or Toxicity (FST) retardancy is disclosed and a method for forming said PIR/PUR comprising material. The PIR/PUR material is comprising at least 0.2 wt % of compounds having a number average equivalent weight < 160 g/mol and at least one non-polymerized ethylenically unsaturated moiety based on the total weight of the PIR/PUR comprising material, and optionally 0.01 wt % up to 1 wt % of one or more radical initiator compounds based on the total weight of the PIR/PUR comprising material.

A method for improving the flame, smoke and/or toxicity retardancy in polyisocyanurate / polyurethane (pir/pur) comprising materials

A polyisocyanurate and/or polyurethane (PIR/PUR) comprising material having improved Flame, Smoke and/or Toxicity (FST) retardancy is disclosed and a method for forming said PIR/PUR comprising material. The PIR/PUR material is comprising at least 0.2 wt % of compounds having a number average equivalent weight < 160 g/mol and at least one non-polymerized ethylenically unsaturated moiety based on the total weight of the PIR/PUR comprising material, and optionally 0.01 wt % up to 1 wt % of one or more radical initiator compounds based on the total weight of the PIR/PUR comprising material.

A method for improving the flame, smoke and/or toxicity retardancy in polyisocyanurate / polyurethane (pir/pur) comprising materials

A polyisocyanurate and/or polyurethane (PIR/PUR) comprising material having improved Flame, Smoke and/or Toxicity (FST) retardancy is disclosed and a method for forming said PIR/PUR comprising material. The PIR/PUR material is comprising at least 0.2 wt % of compounds having a number average equivalent weight < 160 g/mol and at least one non-polymerized ethylenically unsaturated moiety based on the total weight of the PIR/PUR comprising material, and optionally 0.01 wt % up to 1 wt % of one or more radical initiator compounds based on the total weight of the PIR/PUR comprising material.

Material compósito de fibra natural orgânica reforçado, processo para fazer o material compósito, e, uso de um material compósito

Composicion retardante de llama, humo y toxicidad para usarse en espumas que comprenden poliuretano/poliisocianurato.

Una mezcla reactiva que comprende una composición retardante de fuego, humo y toxicidad (FST) para fabricar un material que comprende poliisocianurato y/o poliuretano (PIR/PUR), comprendiendo dicha composición FST: a) al menos un compuesto que tiene al menos una porción etilénicamente insaturada que tiene un peso equivalente promedio en número < 160 g/mol, y b) opcionalmente uno o más compuestos iniciadores de radicales caracterizados porque la temperatura de inicio para la polimerización por radicales (Tinicio) del compuesto etilénicamente insaturado, con o sin el iniciador de radicales, es de 2ºC hasta 40ºC inferior a la temperatura de reacción máxima alcanzada durante el proceso de elaboración del material PIR/PUR (exotermia de reacción (Treacción)).

Flame, smoke and toxicity retardant composition for use in polyurethane/polyisocyanurate comprising foams

A reactive mixture comprising a Fire, Smoke and Toxicity retardant (FST) composition for making a polyisocyanurate and/or polyurethane (PIR/PUR) comprising material, said FST composition comprising: a) at least one compound having at least one ethylenically unsaturated moiety having a number average equivalent weight < 160 g/mol, and b) optionally one or more radical initiator compound characterized in that the onset temperature for radical polymerization (Tonset) of the ethylenically unsaturated compound with or without the radical initiator is 2 ºC up to 40 ºC lower than the maximum reaction temperature achieved during the process for making the PIR/PUR material (reaction exotherm (Treaction)).

Mistura reativa para produzir um material que compreende poli-isocianurato e/ou poliuretano, e, uso da mistura reativa

MISTURA REATIVA PARA PRODUZIR UM MATERIAL QUE COMPREENDE POLI-ISOCIANURATO E/OU POLIURETANO, E, USO DA MISTURA REATIVA. Uma mistura reativa que compreende uma composição retardadora de Fogo, Fumaça e Toxicidade (FST) para produzir um material que compreende poli-isocianurato e/ou poliuretano (PIR/PUR), sendo que a dita composição FST compreende: a) pelo menos um composto que tem pelo menos uma porção etilenicamente insaturada que tem um peso equivalente em número médio < 160 g/mol, e b) opcionalmente um ou mais compostos de iniciador radical distinguida pelo fato de que a temperatura inicial para polimerização radical (Tinicial) do composto etilenicamente insaturado com ou sem o iniciador radical é 2ºC até 40°C inferior à temperatura de reação máxima alcançada durante o processo para produzir o material de PIR/PUR (exotermia de reação (Treação)).

Flame, smoke and toxicity retardant composition for use in polyurethane/polyisocyanurate comprising foams

A reactive mixture comprising a Fire, Smoke and Toxicity retardant (FST) composition for making a polyisocyanurate and/or polyurethane (PIR/PUR) comprising material, said FST composition comprising: a) at least one compound having at least one ethylenically unsaturated moiety having a number average equivalent weight<160 g/mol, and b) optionally one or more radical initiator compound characterized in that the onset temperature for radical polymerization (Tonset) of the ethylenically unsaturated compound with or without the radical initiator is 2° C. up to 40° C. lower than the maximum reaction temperature achieved during the process for making the PIR/PUR material (reaction exotherm (Treaction)).

Use of epoxy compounds as carbon dioxide scavengers in pir comprising foams for superior thermal insulation properties

A reactive composition for making a PIR comprising foam at an isocyanate index of at least 120, said composition comprising at least an isocyanate composition comprising one or more isocyanate compounds, an isocyanate-reactive composition comprising one or more isocyanate-reactive compounds, at least one PIR promoting catalyst, at least one physical blowing agent with a lambda gas ≤ 12 mW/m.K at 10 °C, at least one CO 2 scavenging compound selected from at least one epoxy compound, and optionally a catalyst promoting epoxy reaction with CO 2 characterized in that the amount of isocyanate-reactive compounds in the reactive composition is at least 10 wt% calculated on the total weight of the reactive composition, or at least more than the amount of epoxy compounds and the molar amount of epoxy compounds in the reactive composition is at least 7.8 times higher than the molar amount of CO 2 formed by the water present in the reactive composition after reaction with isocyanates.

Uso de compostos epóxi como sequestrantes de dióxido de carbono em espumas compreendendo pir para propriedades superiores de isolamento térmico

USO DE COMPOSTOS EPÓXI COMO SEQUESTRANTES DE DIÓXIDO DE CARBONO EM ESPUMAS COMPREENDENDO PIR PARA PROPRIEDADES SUPERIORES DE ISOLAMENTO TÉRMICO. Composição reativa para fazer um PIR compreendendo espuma com um índice de isocianato de pelo menos 120, a referida composição compreendendo pelo menos uma composição de isocianato compreendendo um ou mais compostos de isocianato, uma composição reativa a isocianato compreendendo um ou mais compostos reativos a isocianato, pelo menos um catalisador promotor de PIR, pelo menos um agente de expansão físico com um gás lambda = 12 mW/m.K a 10°C, pelo menos um composto sequestrante de CO2 selecionado a partir de pelo menos um composto epóxi e, opcionalmente, um catalisador que promove reação epóxi com CO2 caracterizado pelo fato de que a quantidade de compostos reativos a isocianato na composição reativa é de pelo menos 10% em peso calculado sobre o peso total da composição reativa, ou pelo menos mais do que a quantidade de compostos epóxi e a quantidade molar de compostos epóxi na composição reativa é de pelo menos 7,8 vezes maior que a quantidade molar de CO2 formado pela água presente na composição reativa após reação com isocianatos.

In-situ formation of low density thermoplastic polyurethane flexible foams

Uso de compuestos epoxi como eliminadores de dióxido de carbono en pir que comprende espumas para propiedades de aislamiento térmico superiores.

Una composición reactiva para fabricar un PIR que comprende espuma con un índice de isocianato de al menos 120, comprendiendo dicha composición al menos una composición de isocianato que comprende uno o más compuestos de isocianato, una composición reactiva con isocianato que comprende uno o más compuestos reactivos con isocianato, al menos un catalizador promotor de PIR, al menos un agente de soplado físico con un gas lambda = 12 mW/m.K a 10 °C, al menos un compuesto eliminador de CO2 seleccionado de al menos un compuesto epoxi, y opcionalmente un catalizador que promueve la reacción epoxi con CO2, que se caracteriza porque la cantidad de compuestos reactivos con isocianato en la composición reactiva es al menos 10% en peso calculado sobre el peso total de la composición reactiva, o al menos más que la cantidad de compuestos epoxi, y la cantidad molar de compuestos epoxi en la composición reactiva es al menos 7.8 veces mayor que la cantidad molar de CO2 formado por el agua presente en la composición reactiva después de la reacción con isocianatos.

Pianki poliizocyjanurowe o długim czasie kremowania i właściwościach szybkiego utwardzania