METHOD FOR THE CONTINUOUS PRODUCTION OF SILANE TERMINATED PRE-POLYMERS

The invention relates to the continuous production of prepolymers (A) having end groups of the general formula (1): (R)(R)Si—X-A, wherein the end groups (1) can be identical or different, A is a two-band link group selected from —(R)N—CO—NH—, —HN—CO—N(R)—, —O—CO—HN—, —HN—CO—O—, S—CO—HN—, —HN—CO—S—, X is a two-band, linear or branched alkyl group, optionally substituted with halogen atoms, having 1-10 carbon atoms, Ris an alkyl, cycloalkyl, alkenyl or aryl residue, optionally substituted with halogen, having 1-10 carbon atoms, Ris an alkoxy residue —OR, an acetoxy residue —O—CO—R, an oxime radical —O—N═C(R)or an amine residue —NHRor —NRRis hydrogen, a linear, cyclical or branched radical, substituted with heteroatoms, having 1 to 18 carbon atoms, Ris a linear, branched or cross-linked polymer radical, a is 0, 1 or 2, and n is a whole number that is at least 1, wherein the prepolymers (A) are produced by a continuous method comprising at least one reaction of an isocyanate group (—N═C═O) having at least one isocyanate reactive group, that is carried out continuously in at least one reactor (R), that enables heat dissipation capacities of greater than 5 kW/(m·K) in the laminar flow region. 1. A method for continuous production of prepolymers (A) having end groups of general formula (1){'br': None, 'sup': 1', '2, 'sub': a', '3-a, '(R)(R)Si—X-A-\u2003\u2003(1),'}where the end groups (1) can be the same or different,{'sup': 3', '3, 'A is a divalent linking group selected from —(R)N—CO—NH—, —HN—CO—N(R)—, —O—CO—HN—, —HN—CO—O—, —S—CO—HN—, —HN—CO—S—,'}X is a divalent linear or branched alkyl group of 1-10 carbon atoms which is optionally substituted with halogen atoms,{'sup': '1', 'Ris an optionally halogen-substituted alkyl, cycloalkyl, alkenyl or aryl radical of 1-10 carbon atoms,'}{'sup': 2', '3', '3', '3', '3', '3, 'sub': 2', '2, 'Ris an alkoxy radical —OR, an acetoxy radical —O—CO—R, an oxime radical —O—N═C(R)or an amine radical —NHRor —NR,'}{'sup': '3', 'Ris hydrogen, a ...

Apparatus and Method for Downhole Energy Conversion

An apparatus for generating electrical energy in downhole tool is disclosed. In one exemplary embodiment, such apparatus includes a tubular configured to flow a fluid within the tubular and an energy conversion device at a selected location inside the tubular, wherein the energy conversion device comprises an active material configured to convert received pressure pulses in the fluid into electrical energy.

Adhesive or sealing compounds containing alkoxysilane-terminated polymers

Two-component adhesive or sealing compounds (K), comprising a first component (K1), containing silane-terminated prepolymers (A), which have end groups of the general formula (II) —O—CO—NH—(CH)—SiR(OR)(II), where Rand Rindependently from each other are hydrocarbon groups having 1-18 carbon atoms or ω-oxaalkyl-alkyl groups having in total 2-20 carbon atoms, x is 2 or 3, and y is a number from 1 to 10, and a second component (K2), containing water, provided that at least 50% of all prepolymer molecules (A) do not have any additional urethane or urea units in the backbone of the prepolymer chain. 1. A two-component adhesive or sealing compound (K) comprising a first component (K1) comprising {'br': None, 'sub': 2', 'y', '3-x', 'x, 'sup': 2', '1, '—O—CO—NH—(CH)—SiR(OR)\u2003\u2003(II)'}, 'a silane-terminated prepolymer (A) having end groups of the general formula (II)'}where{'sup': 1', '2, 'Rand Rare each independently hydrocarbyl radicals having 1-18 carbon atoms or ω-oxaalkylalkyl radicals having a total of 2-20 carbon atoms,'}x is 2 or 3 andy is a number from 1 to 10,and a second component (K2) comprising water,with the proviso that at least 50% of all molecules of prepolymer (A) do not have any additional urethane or urea units in the backbone of the prepolymer chain, and that more than 85% of all chain ends are terminated by silane functions.2. The two-component adhesive or sealing compound (K) as claimed in claim 1 , wherein the prepolymer (A) is an unbranched polyether having said end groups.3. The two-component adhesive or sealing compound (K) as claimed in claim 1 , wherein y in formula (II) has the value of 1.4. The two-component adhesive or sealing compound (K) as claimed in claim 1 , wherein the first component (K1) comprises further constituents selected from the group consisting of condensation catalysts (KK) claim 1 , water scavengers and silane crosslinkers (S) claim 1 , fillers (F) claim 1 , plasticizers (W) claim 1 , adhesion promoters (H) claim 1 , ...

PROCESS FOR PREPARING CARBAMATOORGANOSILANES

The invention provides a process for preparing carbamatoorganosilanes (S) of the general formula (7) 2. The process as claimed in claim 1 , in which at least one solvent (L1) having a lower dipole moment than the solvent (L) is added to the reaction mixture before the removal of solids.3. The process as claimed in claim 1 , in which the reaction temperature is 110° C. to 200° C.4. The process as claimed in claim 1 , in which Ris selected from the group consisting of methyl claim 1 , ethyl claim 1 , isopropyl and n-propyl radical.5. The process as claimed in claim 1 , in which Ris selected from the group consisting of methyl claim 1 , ethyl claim 1 , isopropyl and n-propyl radical.6. The process as claimed in claim 1 , in which Ris a propylene or methylene radical.7. The process as claimed in claim 1 , in which Ris selected from the group consisting of methyl claim 1 , ethyl claim 1 , isopropyl and n-propyl radical.8. The process as claimed in claim 1 , in which X is a chlorine atom.9. The process as claimed in claim 1 , in which the solvent (L) is selected from the group consisting of dimethylformamide claim 1 , dimethyl sulfoxide claim 1 , N-methylpyrrolidone claim 1 , N-methylimidazole claim 1 , sulfolane claim 1 , diethylformamide claim 1 , dimethylacetamide claim 1 , diethylacetamide claim 1 , acetylacetone claim 1 , ethyl acetoacetate claim 1 , hexamethylphosphoramide claim 1 , acetonitrile claim 1 , butyronitrile claim 1 , and ethers and esters with at least two ether or ester groups per molecule.10. The process as claimed in claim 2 , in which the solvent (L1) is selected from the group consisting of aromatic and aliphatic hydrocarbons claim 2 , substituted aromatics claim 2 , heterocyclic aromatics claim 2 , ethers claim 2 , esters and ketones.11. The process as claimed in claim 1 , in which a total amount of the alcohol (A) of the general formula (9) to be used is divided in such a way that at least 3% of the total amount of alcohol is initially charged in ...

Isocyanate-free silane-crosslinking compounds

The invention relates to compounds (K) comprising A) 100 parts by weight of a pre-polymer (P) comprising units (E) in the backbone thereof that are selected from polyether and polyester units, wherein the pre-polymer (P) comprises at least one end group of the general formula (1) -L 1 -(CH 2 ) y —SiR 2 3-x (OR 1 ) x (1), B) 1 to 100 parts by weight of silane (S) of the general formula (2) R 4 SiR 2 3-Z (OR 1 ) z (2), (G) 0 to 10 parts by weight of a curing catalyst (HK) that accelerates the curing of the compounds (K) in the presence of humidity, wherein L 1 represents a divalent linking group selected from —O—, —S—, —(R 3 )N—, —O—CO—N(R 3 )—, —N(R 3 )—CO—O—, —N(R 3 )—CO—NH—, —NH—CO—N(R 3 )—, —N(R 3 )—CO—N(R 3 ) and R 1 , R 2 , R 3 , x, y and z have the meanings cited in claim 1. R 4 are hydrocarbon radicals having at least 7 hydrogen atoms. According to the invention, after hardening, the compounds (K) have high shear strength and are used as adhesives (K).

Lateral Well Drilling Apparatus and Method

In one aspect, a drilling apparatus is provided, where the drilling apparatus includes a fluid pump disposed in a main wellbore, a lateral well in fluid communication with the fluid pump and a drilling assembly disposed in the lateral well, wherein the drilling assembly is configured to receive a fluid from the fluid pump to power the drilling assembly and to transport cuttings from the drilling assembly to the main wellbore. The drilling apparatus further includes a sealing mechanism disposed in the main wellbore, the sealing mechanism being configured to direct the cuttings in the fluid downhole of the sealing mechanism.

Control of downhole safety devices

A drilling system for drilling a borehole includes a drill string including a bottom hole assembly and a telemetry system coupled together and a communication device coupled to the drillstring configured to transmit sensor data to and receive control data from a control unit located at a surface location through the telemetry system. The system also includes a sensor coupled to the drillstring, the sensor providing the sensor data to the communication device and a downhole safety device coupled to the drill string and in operable communication with the communication device, the downhole safety device configured to actuate after receiving an activation signal initiated by the control unit.

COATING COMPOSITION FOR SEALING SURFACES

Weather resistant and water repellent surfacing compositions especially useful in roofing applications contain an alkoxysilane-terminated polymer and a reactive silane plasticizer containing a Chydrocarbon group. The surfacing compositions are of low viscosity and may be used without non-reactive plasticizers or organic solvents. 111.-. (canceled)12. A moisture-curing coating composition , comprising {'br': None, 'sup': 1', '2, 'sub': x', '3-x, '-A-Si(OR)R\u2003\u2003(I),'}, 'A) 100 parts by weight of at least one silane-terminated polymer having end groups of the formula (I)'} {'br': None, 'sup': 3', '4', '5, 'sub': y', '3-y, 'R—Si(OR)R\u2003\u2003(II),'}, 'B) 30 to 200 parts by weight of at least one reactive plasticizer of the formula (II),'}C) 0 to 400 parts by weight of filler, and 'where', 'D) 0.01 to 20 parts by weight of curing catalyst,'}A is a linear or branched alkylene group having 1 to 10 carbon atoms,{'sup': 1', '4, 'Rand Rare each independently a linear or branched, unsubstituted or halogen-substituted alkyl group having 1 to 10 carbon atoms,'}{'sup': 2', '5, 'Rand Rare each independently a linear or branched, unsubstituted or halogen-substituted alkyl group having 1 to 5 carbon atoms,'}{'sup': 3', '3, 'Ris an aryl group or a linear, branched or cyclic alkyl group or alkenyl group having 6 to 40 carbon atoms, in which individual hydrogen atoms may be substituted by organic radicals, and, if Ris a linear, branched or cyclic alkyl group or alkenyl group, the carbon chain may be interrupted by oxygen atoms, and'}x and y are 1, 2 or 3.13. A moisture-curing coating composition comprisingA) 100 parts by weight of at least one silane-terminated polymer having end groups of the formula (I) {'br': None, 'sup': 6', '1', '2, 'sub': y', '3-x, 'R—Si(OR)R\u2003\u2003(V),'}, 'B) 7 to 200 parts by weight of at least one reactive plasticizer of the formula (V),'}C) 0 to 400 parts by weight of filler, and 'where', 'D) 0.01 to 20 parts by weight of curing catalyst,'}A ...

SILANE-CROSSLINKING COMPOSITIONS

The invention provides curable adhesives of high tensile sheer strength, which contain an a-silane-terminated polyurethane prepolymer containing low molecular weight polyether or polyester groups in the polymer backbone, and a silane-terminated polyether polymer containing polyether groups of higher molecular weight. 19-. (canceled)11. The composition of claim 10 , wherein a silane-terminated polyurethane is prepared from at least one polyol selected from the group consisting of polyether polyols and polyester polyols or mixtures thereof claim 10 , the polyols or mixtures thereof having an average molar mass Mn of not more than 2000 daltons.12. The composition of claim 10 , wherein a silane-terminated polyurethane possesses at least one terminus of the formula (4){'br': None, 'sup': 3', '7, 'L-R\u2003\u2003(4),'}where{'sup': '7', 'Ris an unsubstituted or halogen-substituted linear, branched or cyclic alkyl, alkenyl or arylalkyl radical having at least 7 carbon atoms, and'}{'sup': 3', '5', '5', '5', '5', '5', '5', '5, 'Lis a divalent linking group selected from —O—, —S—, —(R)N—, —O—CO—N(R)—, —N(R)—OO—O—, —N(R)—CO—NH—, —NH—CO—N(R)—, —N(R)—CO—N(R), in addition to silane termini of the formula (1).'}13. The composition of claim 12 , wherein a silane-terminated polyurethane possesses at least one terminus of the formula (4){'br': None, 'sup': 3', '7, 'L-R\u2003\u2003(4),'}where{'sup': '7', 'Ris an unsubstituted or halogen-substituted linear, branched or cyclic alkyl, alkenyl or arylalkyl radical having at least 7 carbon atoms, and'}{'sup': 3', '5', '5', '5', '5', '5', '5', '5, 'Lis a divalent linking group selected from —O—, —S—, —(R)N—, —O—CO—N(R)—, —N(R)—OO—O—, —N(R)—CO—NH—, —NH—CO—N(R)—, —N(R)—CO—N(R), in addition to silane termini of the formula (1).'}14. The composition of claim 12 , wherein 2 to 40% of all of chain ends of the silane-terminated polyurethane are terminated with groups of the formula (3){'br': None, 'sup': 2', '1, 'sub': 3-x', 'x, '—SiR(OR)\u2003\ ...

CONTINUOUS PROCESS FOR PREPARING SiOC-CONTAINING COMPOUNDS

Organosilicon compounds bearing SiOC groups and having low residual silicon-bonded chlorine are prepared continuously by reacting a chlorosilane with alcohol and optionally water by contacting a gaseous phase containing alcohol with a liquid phase containing silane, organosilicon intermediates, organosilicon compounds containing SiOC groups and optional inert solvent in a reaction column in which the gas phase passes through the liquid phase in bubble form, or is provided with a vaporizer operating by a crossflow principle.

COMPOSITIONS ON THE BASIS OF ORGANYLOXYSILANE-TERMINATED POLYMERS

Moisture-curing adhesives simultaneously having high tensile strength and elongation are prepared by admixing a silane-terminated polyurethane or polyether polymer having a defined and limited molecular weight, finely divided silica, and an organosilicon compound containing basic nitrogen. 111.-. (canceled)13. The composition of claim 12 , wherein c is 1.14. The composition of claim 12 , wherein d is 1 claim 12 , 2 claim 12 , or 3.15. The composition of claim 12 , wherein e is 1 or 0.16. The composition of claim 12 , wherein e is 1 or 0.17. The composition of claim 12 , wherein c is 1 claim 12 , d is 2 or 3 claim 12 , and e is 1 or 0.18. The composition of claim 12 , wherein component (B) comprises pyrogenic silica having a BET surface area between 35 and 400 m/g.19. The composition of claim 12 , comprising finely divided silica (B) in a concentration of at least 19 wt % and at most 40 wt % claim 12 , based on the overall weight of composition.20. The composition of claim 12 , further comprising at least one nonreactive plasticizer.21. The composition of claim 20 , wherein the plasticizer is present in a concentration of at least 5 wt % and at most 50 wt % claim 20 , based on the overall weight of composition.22. The composition of claim 12 , comprising:(A) at least one compound of formula (I),(B) finely divided silica,(C) at least one nonreactive plasticizer,(D) at least one basic nitrogen compound comprising units of formula (V),(E) optionally filler(s),(F) optionally catalyst(s),(H) optionally adhesion promoter(s),(I) optionally water scavenger(s),(J) optionally additive(s), and(K) optionally admixture agent(s).23. A method of forming a composition of claim 12 , comprising mixing the individual components in any desired order.24. A shaped article obtained by crosslinking a composition of .25. A method of adhesively bonding substrates claim 12 , comprising applying a composition of onto the surface of at least one substrate claim 12 , and then contacting this ...

Ignition system

An ignition system for an internal combustion engine includes an ignition transformer with two primary windings. The ignition system is designed to generate, for a given ignition event, a unipolar current through the secondary winding by way of a control circuit that is configured to first energize and deenergize the first primary winding to establish a first electrical arc across the spark-plug electrodes and, when the current in the secondary winding reaches, or drops below, a current threshold, repeatedly energizes and deenergizes the second primary winding to establish a plurality of second current pulses across the electrodes in order to maintain the burn phase.

METHOD FOR AUTOMATICALLY DETERMINING THE POSITION IN A SAMPLE ARRANGEMENT AND CORRESPONDING MICROSCOPE

The invention relates to a method for automatically determining a plurality of positions (P-P) in a sample arrangement () in the object space of a microscope () comprising a microscope objective () which defines an optical axis (), wherein: a measurement beam () is generated by a measurement beam device () and directed at the sample arrangement (), and a measurement beam (′) reflected by the sample arrangement () is detected by a detector () which produces an output signal; the sample arrangement () is displaced in at least one direction perpendicular to the optical axis (); and the plurality of positions (P-P) in the sample arrangement is determined on the basis of the displacement by means of output signals of the detector () generated during the displacement in the at least one direction. The invention also relates to a corresponding microscope (). 1. A method for automatically ascertaining a plurality of positions on a sample arrangement in an object space of a microscope , which comprises a microscope objective , which defines an optical axis , the method comprising:generating a measurement beam by a measurement beam device and directing the measurement beam onto the sample arrangement;capturing a measurement beam reflected by the sample arrangement by a detector, which generates an output signal;displacing the sample arrangement in at least one direction perpendicular to the optical axis as a displacement;andascertaining the plurality of positions on the sample arrangement depending on the displacement by output signals generated by the detector during the displacement in the at least one direction.2. The method of claim 1 , wherein the output signals generated by the detector are evaluated with regard to signal edges present in order to determine a plurality of positions on the sample arrangement.3. The method of claim 2 , wherein the plurality of positions are defined by delimitation points of at least one element contained in the sample arrangement.4. The ...

Cross-linkable masses based on organyl-oxysilane-terminated polymers

RTV-1 compositions, despite containing conventional alkoxysilyl-terminated polymers, exhibit rapid cure and excellent physical properties when they further contain silicone resins, and employ metal, amidine, or guanidine curing catalysts C1 and amine-containing cocatalysts C2 in specific mole ratios.

Crosslinkable materials based on organyl oxysilane-terminated polymers

Moisture curing alkoxysilyl-functional polymer compositions containing a high phenyl-content silicone resin and carbon black exhibit high adhesion to substrates, high tensile strength, very high elongation, and high tear strength without becoming unduly hard.

Plastic depolymerization using halloysite

A method of depolymerizing plastics using a halloysite catalyst is described herein. The method reduces the energy required for the depolymerization process while achieving improved depolymerization results.

Wired pipe coupler connector

A wired pipe segment includes a body extending from a box end to a pin end and a coupler located in one of the box end or the pin end, the coupler including a communication element and a coupler connector in electrical communication therewith and extending away from the communication element. The segment also includes a transmission line extending away from the coupler towards the other of the box and pin end, the transmission line including an inner conductor surrounded by an insulating material, the inner conductor of the transmission line having an end with a non-cylindrical shape. The segment also includes a connector that electrically connects the coupler to the transmission line.

CROSS-LINKABLE MATERIALS BASED ON ORGANYL OXYSILANE-TERMINATED POLYMERS

Moisture curable adhesives of high tensile shear strength contain an alkoxysilyl-terminated polymer and an alkoxy-functional silicone resin. 111.-. (canceled)13. The crosslinkable composition of claim 12 , wherein radical Y in formula (I) comprises polyurethane radicals or polyoxyalkylene radicals.14. The crosslinkable composition of claim 12 , wherein the end groups of the compounds (A) are groups of the formulae{'br': None, 'sup': 1', '2, 'sub': 2', 'b', 'a', '3-a, '—O—C(═O)—NH—(CR)—SiR(OR)\u2003\u2003(III)'}{'br': None, 'and'}{'br': None, 'sup': 1', '2, 'sub': 2', 'b', 'a', '3-a, '—NH—C(═O)—NR′—(CR)—SiR(OR)\u2003\u2003(IV).'}15. The crosslinkable composition of claim 12 , comprising at least 60 parts by weight of component (B) claim 12 , based on 100 parts by weight of component (A).16. The crosslinkable composition of claim 12 , wherein the silicone resins (B) have an average molar mass (number average) Mof at least 400 g/mol and not more than 400 claim 12 ,000 g/mol.17. The crosslinkable composition of claim 12 , comprising:(A) 100 parts by weight of compounds of the formula (I),(B) 60 to 1000 parts by weight of silicone resin(s) comprising units of formula (II),(C) optionally 0.5 to 10 parts by weight of a compound containing basic nitrogen,(D) optionally filler(s),(E) optionally catalyst(s),(F) optionally adhesion promoter(s),(G) optionally water scavenger(s),(H) optionally further additives other than (A) through (G), and(K) optionally adjuvants.18. A process for producing a composition of claim 12 , comprising mixing the individual components in any order.19. A shaped article produced by crosslinking a composition of .20. The shaped article of claim 19 , having a DIN EN 204 tensile shear strength of at least 7 MPa after 7-day storage at 1000 hPa and 23° C.21. A method for adhesive bonding or sealing of substrates claim 12 , comprising applying a composition of to the surface of at least one substrate claim 12 , then contacting said surface with a second ...

COATING COMPOSITION FOR SEALING SURFACES

Curable alkoxysilyl-terminated polymers may be used for architectural coatings, particularly flat roofs, if specific HALS UV absorbants are included in the coating formulation. 113.-. (canceled)15. The coating composition of claim 14 , wherein stabilizer (B) comprises mixtures (B1) or organic compounds (B2).16. The coating composition of claim 14 , further comprising at least one further component selected from reactive diluents (C) claim 14 , silicone resins (D) claim 14 , and nonreactive plasticizers (E).17. The coating composition of claim 14 , further comprising at least one further component selected from reactive diluents (C) and silicone resins (D).18. The coating composition of claim 14 , further comprising a reactive diluent (C).19. A process for producing a composition of claim 14 , comprising mixing the individual components in any order.20. The process of claim 19 , wherein a masterbatch (MS) is produced wherein one or more HALS stabilizers (B) are dissolved in a concentration of at least 5 wt % in one or more liquid components of the coating composition (BS).21. A process for coating surfaces claim 14 , comprising applying a coating composition (BS) of to the surface to be coated.22. The process of claim 21 , wherein the surfaces to which the coating composition (BS) is applied is a mineral building material.23. The process of claim 21 , wherein the surfaces to which the coating composition (BS) is applied is a stone or concrete claim 21 , metals claim 21 , roofing felts claim 21 , plastics claim 21 , woven fiber fabrics claim 21 , wood claim 21 , glass or ceramic.24. The process of claim 21 , wherein the coating composition (BS) is applied in a layer thickness of 0.1 mm to 50 mm to the surface to be coated.25. The process of claim 21 , wherein surfaces in the exterior of buildings are coated.26. A shaped article produced by crosslinking the composition (BS) of .27. The shaped article of claim 26 , which is a coating. This application is the U.S. ...

CROSSLINKABLE COMPOSITIONS BASED ON ORGANYLOXYSILANE-TERMINATED POLYMERS

Moisture curable silicone adhesives used for sealing joints and for the bonding of substrates such as PVC, concrete, mineral substrates, metals, glass, ceramic, wood, or painted surfaces are prepared from crosslinkable compositions containing both hydrophilic and hydrophobic fumed silicas in a mass ratio of 1:10 to 10:1. 112.-. (canceled)14. The composition of claim 13 , wherein the Y radical in formula (I) comprises x-valent claim 13 , nitrogen- claim 13 , oxygen- claim 13 , sulfur- claim 13 , or carbon-bonded polyether group-containing polyurethane radicals or polyoxyalkylene radicals.15. The composition of claim 13 , wherein components (B1) and (B2) are present in a mass ratio between 5:1 and 1:5.16. The composition of claim 13 , wherein the composition contains component (B) in an amount of 15 to 50 parts by weight claim 13 , based on 100 parts by weight of component (A).17. The composition of claim 13 , wherein the composition further comprises:(A) optionally at least one unreactive plasticizer,(B) at least one basic nitrogen-containing compound,(C) optionally at least one filler,(D) optionally at least one catalyst,(E) optionally at least one adhesion promoter,(I) optionally at least one water scavenger,(J) optionally at least one additive and/or(K) optionally at least one admixtures.19. A method of producing a composition of by mixing the individual components in any sequence.20. A shaped body produced by crosslinking the composition of .21. A shaped body produced by crosslinking the composition as produced in .22. A method of bonding substrates comprising applying a composition of to a surface of at least a first substrate claim 13 , contacting the surface with at least a second substrate to be bonded claim 13 , and allowing the composition to crosslink.23. A method of bonding substrates comprising applying a composition as produced in to a surface of at least a first substrate claim 19 , contacting the surface with at least a second substrate to be bonded ...

COMPOSITIONS ON THE BASIS OF ORGANYLOXYSILANE-TERMINATED POLYMERS

Moisture-curing adhesives simultaneously having high tensile strength and elongation are prepared by admixing a silane-terminated polyurethane or polyether polymer having a defined and limited molecular weight, finely divided silica, and an organosilicon compound containing basic nitrogen. 2. The composition of claim 1 , wherein c is 1.3. The composition of claim 1 , wherein d is 1 claim 1 , 2 claim 1 , or 3.4. The composition of claim 1 , wherein e is 1 or 0.5. The composition of claim 1 , comprising finely divided silica (B) in a concentration of at least 19 wt % and at most 40 wt % claim 1 , based on the overall weight of composition.6. The composition of claim 1 , wherein the finely divided pyrogenic silica has a BET surface area of from 50 m/g to about 140 m/g.7. The composition of claim 1 , further comprising at least one nonreactive plasticizer.8. The composition of claim 7 , wherein the plasticizer is present in a concentration of at least 5 wt % and at most 50 wt % claim 7 , based on the overall weight of composition.9. A method of forming a composition of claim 1 , comprising mixing the individual components in any desired order.10. A shaped article obtained by crosslinking a composition of .11. A method of adhesively bonding substrates claim 1 , comprising applying a composition of onto the surface of at least one substrate claim 1 , and then contacting this surface with a second substrate claim 1 , and subsequently allowing the composition to crosslink.12. A method of forming composites claim 1 , which comprises applying a composition of onto at least one substrate and then allowing the composition to crosslink.13. A method of forming a composite claim 9 , comprising applying a composition prepared by the method of onto at least one substrate and crosslinking the composition.14. The composition of claim 1 , wherein b is 1 claim 1 , and the composition is free of metal catalysts.15. The composition of claim 1 , further comprising a polyoxyalkylene ...

METHOD OF CONTROLLING A SOLENOID ACTUATED FUEL INJECTOR

A method of controlling the operation of a solenoid activated fuel injector, actuator being operated by applying a activation pulse profile to the solenoid. The method includes measuring the voltage across, or current through, the solenoid during a time period of the valve closing phase, subsequent to a valve opening phase. The method also includes determining at least one parameter from the measuring step. The method also includes controlling and varying the activation pulse profile during a subsequent activation/fueling cycle of the fuel injector based on the parameter. 17-. (canceled)8. A method of controlling operation of a fuel injector , said fuel injector including a valve actuated by an actuator controlled by a solenoid , said actuator being operated by applying an activation pulse profile to said solenoid , said method comprising:a) measuring a voltage across, or a current through, the solenoid during a time period of a valve closing phase, subsequent to a valve opening phase;b) summing said voltage or said current over said time period; andc) controlling and varying the activation pulse profile during a subsequent activation/fueling cycle of said fuel injector based on said sum from step b).9. A method as claimed in claim 8 , where step c) comprises varying energy of an initial activation/boost pulse of said activation pulse profile.10. A method as claimed in claim 8 , where step c) comprises varying a magnitude or a duration of an initial activation/boost pulse of said activation pulse profile.11. A method as claimed in claim 8 , wherein step c) comprises summing the coil-turn-off voltage during the valve closing phase.121. A method as claimed in claim 8 , wherein step c) includes comparing said sum from step b) and comparing said sum with a target value or target band claim 8 , and varying said activation pulse profile () during a subsequent activation/fueling cycle based on the comparison.132. A method as claimed in wherein step c) includes reducing a ...

CROSS-LINKABLE MASSES BASED ON ORGANYL-OXYSILANE-TERMINATED POLYMERS

Moisture curable compositions having a low modulus and a high resilience are prepared by curing a composition containing a first polymer which predominately contains two moisture-curable silyl groups, and a second polymer which is terminated by an alkoxy group and contains but a single moisture-curable silyl group, or a hydroxyl group. 111-. (canceled)13. The composition of claim 12 , wherein component (A) includes less than 5 mol % of polymers of the formula (I) with x=1.14. The composition of claim 12 , wherein component (B) includes less than 5 mol % of polymers of the formula (II) with y=1.15. The composition of any of claim 12 , wherein the composition contains 10 to 100 parts by weight of polymer (B).16. The composition of claim 12 , further comprising at least one organosilicon compound (C) not having nitrogen atoms bonded directly to a carbonyl group.18. The composition of claim 12 , comprising:(A) 100 parts by weight of polymer(s) (A),(B) 5 to 500 parts of polymer(s) (B),(C) 0.1 to 10 parts by weight of organosilicon compounds not having nitrogen atoms bonded directly to carbonyl groups,(D) 50 to 500 parts by weight of fillers,(E) optionally, silicone resins,(F) optionally, catalysts,(G) optionally, adhesion promoters,(H) optionally, water scavengers,(I) 0.01 to 100 parts by weight of unreactive plasticizers,(J) optionally, further additives and(K) optionally, further admixtures.19. A process for producing a composition of claim 12 , comprising mixing the individual components in any sequence.20. A shaped body produced by crosslinking a composition of .21. A shaped body produced by crosslinking a composition claim 19 , produced by the process of .22. A method for bonding substrates claim 12 , comprising applying a composition of to a surface of at least one substrate claim 12 , and then contacting this surface with a second substrate to be bonded claim 12 , and allowing the composition to crosslink.23. A method for bonding substrates claim 19 , comprising ...

CROSS-LINKABLE MASSES BASED ON ORGANOSILICON COMPOUNDS

The invention relates to cross-linkable compositions comprising 110.-. (canceled)13. The cross-linkable composition of claim 11 , wherein at least one radical Ris an N claim 11 ,N-dimethylaminomethyl claim 11 , N claim 11 ,N-diethylaminomethyl claim 11 , N claim 11 ,N-di-n-propylaminomethyl or N claim 11 ,N-di-n-butylaminomethyl radical.14. The cross-linkable composition of claim 12 , wherein at least one radical Ris an N claim 12 ,N-dimethylaminomethyl claim 12 , N claim 12 ,N-diethylaminomethyl claim 12 , N claim 12 ,N-di-n-propylaminomethyl or N claim 12 ,N-di-n-butylaminomethyl radical.16. A process for producing a cross-linkable composition of claim 11 , comprising mixing the individual components in any sequence.17. The process of claim 16 , wherein firstly α claim 16 ,ω-dihydroxypolydimethylsiloxanes (A0) are mixed together with silanes of the formula (III) in molar excess and are left to react with elimination of the alcohol ROH claim 16 , where Rhas the same definition specified above claim 16 , wherein a mixture of organosiloxanes (A) and excess silanes of the formula (III) is obtained claim 16 , and then any further components are added to this mixture in any desired sequence.18. A molding claim 11 , produced by cross-linking a composition of .19. A molding produced by cross-linking a composition produced by the process of .20. A process for treating a substrate claim 11 , comprising applying a composition of to the substrate and crosslinking the composition.21. The process of claim 20 , wherein the cross-linkable composition is used in amounts from 100 to 400 g claim 20 , based on 1 mof substrate surface area.22. The process of claim 20 , wherein the substrate is a mineral substance. This application is the U.S. National Phase of PCT Appin. No. PCT/EP2017/055210 filed Mar. 6, 2017, the disclosure of which is incorporated in its entirety by reference herein.The invention relates to cross-linkable compositions based on organosilicon compounds, and to ...

CROSS-LINKABLE COATING COMPOSITIONS BASED ON ORGANYL OXYSILANE-TERMINATED POLYMERS

Crosslinkable compositions especially useful for coatings contain an alkoxysilyoxy-terminated polymer and a silicone resin. 111.-. (canceled)13. The crosslinkable composition as claimed in claim 12 , wherein radical Y in formula (I) is a polyoxypropylene radical having a number-average molecular mass of 200 to 10 claim 12 ,000 g/mol.14. The crosslinkable composition of claim 12 , wherein radical Y in formula (I) is a polyoxypropylene radical having a number-average molecular mass of 500 to 8000 g/mol.15. The crosslinkable composition of claim 12 , comprising claim 12 , based on 100 parts by weight of component (A) claim 12 , at least 200 parts by weight of component (B).16. The crosslinkable composition of claim 12 , wherein the composition (M) contains less than 100 parts by weight of compounds (C2) of formula{'br': None, 'sup': 2', '1', '2, 'sub': 2', 'b', 'a', '3-a', 'x, 'Y—[(CR)—SiR(OR)]\u2003\u2003(I″),'}{'sup': 2', '1', '2, 'wherein Yis an x-valent polymer radical bonded via nitrogen, oxygen, sulfur or carbon which contains aromatic structural elements comprising nitrogen or oxygen atoms bonded directly to an aryl ring of the aromatic structural element and R, R, R, a, b and x in each case are identical or different.'}17. The crosslinkable composition of claim 12 , wherein said composition contains(A) 100 parts by weight of compounds of formula (I) and(B) at least 100 parts by weight of silicone resins containing units of formula (II) and at least one further component selected from(D) nitrogen-containing organosilicon compound,(E) catalysts,(F) adhesion promoters,(G) water scavengers,(H) fillers,(I) additives and(J) admixture agents.18. The crosslinkable composition of claim 12 , wherein the composition (M) contains less than 10 parts by weight of organic solvents based on 100 parts by weight of the composition (M) according to the invention.19. A process for producing the crosslinkable composition of claim 12 , comprising mixing the individual components in ...

METHOD FOR PRODUCING CARBAMATOORGANOSILANES

Carbamatoorganosilanes are produced in exceptionally high yield with a high degree of purity, by reacting an aminoorganosilane with a dialkylcarbonate in the presence of a basic catalyst, wherein a first reaction period proceeds at a temperature in the range of 35-65° C., followed by a later reaction period at a temperature at least 10° C. higher. A low level of catalyst allows its removal by simple exit filtration, without a separate filtration step. 19.-. (canceled)11. The process of claim 10 , where the radical Ris an unsubstituted monovalent hydrocarbon radical having from 1 to 6 carbon atoms.12. The process of claim 10 , wherein the radical Ris an substituted alkyl radical having from 1 to 4 carbon atoms.13. The process of claim 10 , wherein the radical Ris an unsubstituted alkylene radical having from 1 to 6 carbon atoms.14. The process of claim 10 , wherein the temperature during the first reaction period is from 45° C. to 65° C.15. The process of claim 10 , wherein the temperature during the later reaction period is at least 20° C. higher than in the first reaction period.16. The process of claim 10 , wherein the aminosilanes of the formula (4) and the dialkyl carbonates of the formula (5) are used in a mole ratio of from 1.0:1.0 to 1.0:2.0.17. The process of claim 10 , wherein a metal alkoxide is used as a catalyst.18. The process of claim 10 , wherein the content of the catalyst is not more than 0.2% by weight claim 10 , based on the weight of the total reaction mixture. This application is the U.S. National Phase of PCT Appln. No. PCT/EP2014/069818 filed Sep. 17, 2014, which claims priority to German Application No. 10 2013 218 972.9 filed Sep. 20, 2013, the disclosures of which are incorporated in their entirety by reference herein.1. Field of the InventionThe invention relates to a process for preparing carbamatoorganosilanes from corresponding aminoorganosilanes and dialkyl carbonate.2. Description of the Related ArtVarious processes for preparing 3- ...

MULTICOMPONENT CROSSLINKABLE COMPOSITIONS BASED ON ORGANYLOXYSILANE-TERMINATED POLYMERS

Multicomponent crosslinkable compositions based on organyloxysilane-terminated polymers free of toxicologically objectionable catalysts and isocyanates exhibiting good tensile shear strength are useful for adhesive bonding and sealing of substrates. 110-. (canceled)12. The crosslinkable composition of claim 11 , wherein the crosslinkable composition is a two-component composition consisting of components (K1) and (K2).13. The crosslinkable composition of claim 11 , further comprising silicone resins (B) in an amount of 30 to 1000 parts by weight claim 11 , based on 100 parts by weight of the compounds (A) in the component (K1).14. The crosslinkable composition of claim 11 , wherein the silicon resins (B) are phenylsilicone resins.15. The crosslinkable composition of claim 11 , further comprising one or more organosilicon compounds (G) comprising units of the formula{'br': None, 'sub': g', 'f', 'e', '(4-e-f-g)/2, 'sup': 5', '6, 'DSi(OR)RO\u2003\u2003(VI)'}wherein{'sup': '5', 'Reach are identical or different, and are a hydrogen or optionally substituted hydrocarbon radicals,'}D each are identical or different monovalent, SiC-bonded radicals containing basic nitrogen,{'sup': '6', 'Reach are identical or different monovalent, optionally substituted, SiC-bonded organic radicals free from basic nitrogen,'}e is 0, 1, 2, or 3,f is 0, 1, 2, or 3, andg is 0, 1, 2, 3, or 4,with the proviso that the sum of e+f+g≦4 and at least one radical D is present per molecule.18. The method of claim 17 , further comprising adhesive bonding or sealing of substrates by following steps:applying a mixture of the component (K1), the component (K2), and optionally further components to a surface of at least one substrate,subsequently contacting the surface with a second substrate to be bonded, andsubsequently allowing crosslinking of the multicomponent crosslinkable composition.19. The method of claim 17 , further comprising producing coatings or encapsulations by following steps:applying a ...

CROSS-LINKABLE MASSES BASED ON ORGANYLOXYSILANE-TERMINATED POLYMERS

The objectionable odor of one component condensation curable organopolysiloxane compositions is eliminated by replacing all or the most substantial part of water scavenger vinyltrimethoxysilane with a phenyltrialkoxysilane, without compromising storage or curing properties. 110.-. (canceled)12. The crosslinkable composition of claim 11 , wherein the Y moiety comprises polyurethane moieties or polyoxyalkylene moieties.13. The crosslinkable composition of claim 11 , wherein component (B) is phenyltrimethoxysilane.14. The crosslinkable composition of claim 11 , wherein the composition contains less than 0.3 wt % of vinyltrimethoxysilane claim 11 , based on the total weight of the composition.15. The crosslinkable composition of claim 11 , wherein the composition contains component (B) in an amount of 0.5 to 50 parts by weight claim 11 , based on 100 parts by weight of component (A).18. A method of forming a composition of claim 11 , comprising mixing the individual components in any order.19. A shaped article obtained by crosslinking a composition of .20. A method of forming a composite claim 11 , comprising applying a composition of to a substrate and then crosslinking the composition. This application is the U.S. National Phase of PCT Appln. No. PCT/EP2015/060645 filed May 13, 2015, which claims priority to German Application No. 10 2014 210 309.6 filed May 30, 2014, the disclosures of which are incorporated in their entirety by reference herein.1. Field of the InventionThe invention relates to crosslinkable compositions of silane-crosslinking prepolymers and to their methods of making and use as adhesive and sealant materials, in particular for adhesive bonding of substrates.2. Description of the Related ArtPolymer systems having reactive alkoxysilyl groups are well known. On contact with water and/or atmospheric humidity, these alkoxysilane-terminated polymers are able to condense with each other even at room temperature by eliminating the alkoxy groups. One of the ...

CROSS-LINKABLE MATERIALS BASED ON ORGANYL-OXYSILANE-TERMINATED POLYMERS

A composition containing an alkoxysilyl-functional polymer, a phenylsilicone resin, and a non-reactive plasticizer, when cured, exhibits very high elongation without loss of tensile strength. The compositions are particularly well suited for flexible adhesives. 110.-. (canceled)11. A crosslinkable composition , comprising: {'br': None, 'sup': 1', '2, 'sub': 2', 'b', 'a', '3-a', 'x, 'Y—[(CR)—SiR(OR)]\u2003\u2003(I),'}, '(A) 100 parts by weight of one or more compounds of the formula'}whereY is an x-valent polymer radical bonded via nitrogen, oxygen, sulfur or carbon,R are identical or different monovalent, optionally substituted hydrocarbon radicals,{'sup': '1', 'Rare identical or different, and are hydrogen or monovalent, optionally substituted hydrocarbon radicals which are optionally attached to the carbon atom via nitrogen, phosphorus, oxygen, sulfur or carbonyl group,'}{'sup': '2', 'Rare identical or different and are hydrogen or monovalent, optionally substituted hydrocarbon radicals,'}x is an integer from 1 to 10,a is 0, 1 or 2, andb is an integer from 1 to 10, {'br': None, 'sup': 3', '4', '5, 'sub': c', 'd', 'e', '(4-c-d-e)/2, 'R(RO)RSiO\u2003\u2003(II),'}, '(B) at least 5 parts by weight of at least one silicone resin comprising units of the formula'}where{'sup': '3', 'Rare identical or different and are hydrogen, monovalent, SiC-bonded, optionally substituted aliphatic hydrocarbon radicals, or divalent, optionally substituted, aliphatic hydrocarbon radicals which bridge two units of the formula (II),'}{'sup': '4', 'Rare identical or different and are hydrogen or monovalent, optionally substituted hydrocarbon radicals,'}{'sup': '5', 'Rare identical or different and are monovalent, SiC-bonded, optionally substituted aromatic hydrocarbon radicals,'}c is 0, 1, 2 or 3,d is 0, 1, 2 or 3, ande is 0, 1 or 2,with the proviso that the sum of c+d+e is less than or equal to 3 and in at least 40% of the units of formula (II) the sum c+e is equal to 0 or 1,where ...

CROSS-LINKABLE MASSES BASED ON ORGANYL-OXYSILANE-TERMINATED POLYURETHANES

Adhesives having high tensile strength are prepared from moisture-curable alkoxysilyl-terminated polyurethanes. 111.-. (canceled)13. The crosslinkable composition (M) of claim 12 , further comprising at least one (D) filler claim 12 , (E) silicone resin claim 12 , (F) catalyst claim 12 , (G) adhesion promoter claim 12 , (H) water scavenger claim 12 , (I) nonreactive plasticizer claim 12 , (J) additive claim 12 , and/or (K) adjuvant.15. A crosslinkable composition (M) claim 12 , of claim 12 , wherein admixture (A) is prepared by reacting(a) at least one polyol,(b) at least one di- and/or polyisocyanate, and {'br': None, 'sup': 3', '1', '2, 'sub': 2', 'b', 'a', '3-a, 'HNR—(CR)—SiR(OR)\u2003\u2003(IV)'}, '(c) at least one aminosilane of the formula'}and/or its partial hydrolysates,and also, optionally, further components,with the proviso that components (a), (b), and (c) and also any further components are used in a ratio whereby for each mole of isocyanate groups in component (b) and also further isocyanate-functional components optionally present in the reaction mixture there is more than 0.55 mol up to a maximum of 0.95 mol of amino groups in component (c) and they are reacted with the isocyanate groups.16. The crosslinkable composition of claim 12 , which contains no nonreactive plasticizers (I).17. A process for producing the composition (M) of claim 12 , comprising mixing the individual components in any order.18. A shaped article produced by crosslinking a composition (M) of .19. A method for the adhesive bonding of substrates claim 12 , comprising applying a composition (M) of to the surface of at least one substrate claim 12 , and contacting the surface of the at least one substrate with a second substrate to be bonded claim 12 , and allowing crosslinking of the composition to take place.20. A method for producing composite materials claim 12 , comprising applying a composition (M) of to at least one substrate and allowing crosslinking of the composition to ...

Multi-Layer Structural Component, Method for the Production Thereof and Uses Thereof

A multi-layered structural component having a layer structure comprising a plurality of layers arranged one atop the other in a stacking direction. The layer structure includes at least one fiber structure consisting of a fiber material and of a thermoplastic binding agent, and at least one aluminum layer made of aluminum or of an aluminum alloy. At least one aluminum layer of the layer structure has a stiffening structure and/or a recess. The disclosure further relates to a method for producing such a structural component and to uses therefor.

METHOD FOR PRODUCING SILANE-TERMINATED POLYMERS

Silane-terminated polymers of the formula (I) 111.-. (canceled)12. A method for producing silane-terminated polymers of the formula (I){'br': None, 'sup': 3', '12', '2, 'sub': b', 'a', '3-a', 'x, 'Y—[Z—C(═O)—NR—(CR)—SiR(OR)]\u2003\u2003(I),'}whereinY is an x-valent polymer radical comprising at least one polyether, polyester and/or polyacrylate unit,R are identical or different and are monovalent, optionally substituted, SiC-bonded hydrocarbon radicals,{'sup': '1', 'Rare identical or different and are hydrogen or monovalent, optionally substituted hydrocarbon radicals,'}{'sup': '2', 'Rare identical or different and are hydrogen or monovalent, optionally substituted hydrocarbon radicals,'}{'sup': 3', '1', '2, 'sub': 2', 'b', 'a', '3-a', '2, 'Rare identical or different and are hydrogen, monovalent, optionally substituted hydrocarbon radicals, —(CR)—SiR(OR)groups or —CH(COOR′)—CH—COOR′ groups,'}R′ are identical or different and are monovalent, optionally substituted hydrocarbon radicals,Z are identical or different and are NH or oxygen,x is an integer from 1 to 50,a are identical or different and are 0, 1 or 2, andb are identical or different and are integers from 1 to 10,comprising reacting at least one hydroxy-functional polymer (a), comprising at least one polyether, polyester and/or polyacrylate unit, with at least one compound having at least one isocyanate group, in the presence of at least one bismuth-containing catalyst (K), with the proviso that the reaction mixture comprises 50 to 250 ppm water at the start of the reaction.13. The method of claim 12 , wherein carried out at temperatures between 20° C. and 180° C.14. The method of claim 12 , wherein said method produces silane-terminated polymers (method variant 1) of the formula (Ia){'br': None, 'sup': 1', '3', '1', '2, 'sub': 2', 'b', 'a', '3-a', 'x, 'Y—[NH—C(═O)—NR—(CR)—SiR(OR)]\u2003\u2003(Ia),'}by reacting(a1) at least one hydroxy-functional polymer comprising at least one polyether, polyester and/or ...

CROSS-LINKABLE MASSES BASED ON ORGANYL-OXYSILANE-TERMINATED POLYMERS

Moisture curable compositions having a low modulus and a high resilience are prepared by curing a composition containing a first polymer which predominately contains two moisture-curable silyl groups, and a second polymer which is terminated by an alkoxy group and contains but a single moisture-curable silyl group, or a hydroxyl group. 2. The composition of claim 1 , wherein component (A) includes less than 5 mol % of polymers of the formula (I) with x=1.3. The composition of claim 1 , wherein component (B) includes less than 5 mol % of polymers of the formula (II) with y=1.4. The composition of any of claim 1 , wherein the composition contains 10 to 100 parts by weight of polymer (B).5. The composition of claim 1 , wherein the organosilicon compounds (C) are compounds containing units of the formula{'br': None, 'sub': e', 'f', 'g', '(4-e-f-g)/2, 'sup': 7', '8, 'DSi(OR)RO\u2003\u2003(III)'}where{'sup': '7', 'Reach, independently, is the same or different and is a hydrogen atom or optionally substituted hydrocarbyl radicals,'}D each, independently, are the same or different and are monovalent, SiC-bonded radicals containing nitrogen atoms which are not bonded directly to a carbonyl group,{'sup': '8', 'Reach, independently, are the same or different and are monovalent, optionally substituted, SiC-bonded, nitrogen-free organic radical,'}e is 0, 1, 2, 3 or 4,f is 0, 1, 2 or 3 andg is 0, 1, 2 or 3,with the proviso that the sum total of e+f+g is less than or equal to 4 and at least one D radical is present per molecule.7. A process for producing a composition of claim 1 , comprising mixing the individual components in any sequence.8. A shaped body produced by crosslinking a composition of .9. A shaped body produced by crosslinking a composition claim 8 , produced by the process of .10. A method for bonding substrates claim 1 , comprising applying a composition of to a surface of at least one substrate claim 1 , and then contacting this surface with a second substrate to ...

METHOD OF CONTROLLING IMAGING OF A SAMPLE BY A MICROSCOPE AND CORRESPONDING MICROSCOPE

A microscope includes a control system connected to an illumination system and an imaging system. The control system is configured to: detect an image affecting change in microscope settings and/or in a location of the sample, the image affecting change resulting in an alteration of the sample image; cause the imaging system to deliver a live image stream of live images of the sample in a first imaging mode, or to deliver a still image stream of still image(s) of the sample in a second imaging mode, and to switch from the first imaging mode into the second imaging mode when no image affecting change is detected, using one of the last live images of the first imaging mode for at least a part of the still image stream in the second imaging mode; and reduce an illumination intensity of the illumination system during the second imaging mode. 1. A microscopea control system configured to control imaging of a sample imaged by the microscope;an illumination system configured to illuminate the sample; andan imaging system configured to deliver microscopic images of the sample, detect an image affecting change in microscope settings and/or in a location of the sample, the image affecting change resulting in an alteration of the sample image,', 'cause the imaging system to either deliver a live image stream of live images of the sample in a first imaging mode, or to deliver a still image stream of one or more still images of the sample in a second imaging mode, and to switch from the first imaging mode into the second imaging mode when no image affecting change is detected, using one of the last live images of the first imaging mode for at least a part of the still image stream in the second imaging mode, and', 'reduce an illumination intensity of the illumination system during the second imaging mode., 'wherein the control system is connected to the illumination system and to the imaging system and is configured to2. The microscope according to claim 1 , wherein the control ...

CROSS-LINKABLE COMPOSITIONS BASED ON ORGANYLOXYSILANE-TERMINATED POLYMERS

A crosslinkable composition comprising aminoalkyl-functional and epoxy-functional silanes and/or siloxanes provides an improvement in adhesion and sealing of various substrates under the conditions of cold-water storage, especially when a significant portion of all the silicon units has an amino-functional or an epoxy-functional unit and has an SiC-bonded, optionally halogen-substituted alkyl radical. 110.-. (canceled)11. A crosslinkable composition comprising: {'br': None, 'sup': 1', '2, 'sub': 2', 'b', 'a', '3-a', 'x, 'Y—[(CR)—SiR(OR)]\u2003\u2003(I),'}, '(A) 100 parts by weight of compound(s) of the formulawhereinY is an x-valent polymer radical bonded via nitrogen, oxygen, sulfur, or carbon,R each are identical or different monovalent, optionally substituted, SiC-bonded hydrocarbon radicals,{'sup': '1', 'Reach are identical or different, and are a hydrogen or a monovalent, optionally substituted hydrocarbon radical optionally bonded to the carbon atom via nitrogen, phosphorus, oxygen, sulfur, or a carbonyl group,'}{'sup': '2', 'Reach are identical or different, and are a hydrogen or a monovalent, optionally substituted hydrocarbon radical,'}x is an integer from 1 to 10,a is identical or different and is 0, 1, or 2, andb is identical or different and is an integer from 1 to 10; {'br': None, 'sup': 3', '4, 'sub': d', 'e', '(3-d-e)/2, 'DSi(OR)RO\u2003\u2003(II),'}, '(B) 0.1 to 30 parts by weight of organosilicon compound(s) comprising units of the formulawhereinD is a monovalent, SiC-bonded radical containing basic nitrogen,{'sup': '3', 'Reach are identical or different, and are a hydrogen or an optionally substituted hydrocarbon radical,'}{'sup': '4', 'Reach are identical or different unsubstituted or halogen-substituted, SiC-bonded alkyl radicals having 1 to 8 carbon atoms,'}d is 0, 1, 2, or 3, ande is 0, 1, 2, or 3,{'sup': '3', 'wherein the sum total of d+e≦3 and at least one radical (OR) is present per molecule;'} {'br': None, 'sup': 5', '6, 'sub': g', 'h', '(3 ...

PRODUCTION OF ISOCYANATE FUNCTIONAL ORGANOSILANES

Isocyanate-functional silanes are prepared in high yield by pyrolysis of an O-carbamate prepared by reaction of a dialkylcarbonate with an aminoalkyl-functional silane in the presence of a basic catalyst, where the catalyst is neutralized by an acid which has a pKof all protolysis stages of not more than 4. The neutralized or partially neutralized catalyst need not be removed prior to pyrolysis. The isocyanato-functional silanes exhibit higher storage stability as compared to those prepared from O-carbamates where catalyst neutralization is effected by weak acids. 19.-. (canceled)11. The process of claim 10 , wherein at least one acid is selected from the group consisting of halogen-containing acids and acids containing halogen and oxygen claim 10 , sulfur-containing acids claim 10 , nitrous acid and nitric acid.12. The process of claim 10 , wherein the acid is selected from among halogen-hydrogen acids having a direct halogen-oxygen bond.13. The process of claim 11 , wherein the acid is selected from among halogen-hydrogen acids having a direct halogen-oxygen bond.14. The process of claim 10 , wherein at least one acid is sulfuric acid or toluenesulfonic acid.15. The process of claim 10 , wherein the acid is added in the complete or partial neutralization in such an amount that from 0.9 to 5 mol of acidic hydrogens are present per 1 mol of basic functions in the catalyst (K).16. The process of claim 11 , wherein the acid is added in the complete or partial neutralization in such an amount that from 0.9 to 5 mol of acidic hydrogens are present per 1 mol of basic functions in the catalyst (K).17. The process of claim 12 , wherein the acid is added in the complete or partial neutralization in such an amount that from 0.9 to 5 mol of acidic hydrogens are present per 1 mol of basic functions in the catalyst (K).18. The process of claim 10 , wherein Ris an alkyl radical having 1 or 4 carbon atoms.19. The process of claim 10 , wherein Ris an alkyl radical having 1 or 4 ...

CROSSLINKABLE MATERIALS BASED ON ORGANYLOXYSILANE-TERMINATED POLYMERS

Crosslinkable compositions suitable for use as adhesives or sealants contain: 111.-. (canceled)13. The composition of claim 12 , wherein the radicals Zand Zare linear polyoxyalkylene radicals which are free from C-bonded hydroxyl groups.14. The composition of claim 12 , wherein the radicals Rand Rindependently of one another are alkyl radicals optionally substituted by halogen atoms and having 1 to 10 carbon atoms.15. The composition of claim 13 , wherein the radicals Rand Rindependently of one another are alkyl radicals optionally substituted by halogen atoms and having 1 to 10 carbon atoms.16. The composition of claim 12 , comprising component (B) in amounts of 10 to 300 parts by weight.17. The composition of claim 13 , comprising component (B) in amounts of 10 to 300 parts by weight.18. The composition of claim 12 , further comprising at least one water scavenger (G).20. A method for producing a composition of claim 12 , comprising mixing the individual components in any order.21. A shaped article produced by crosslinking a composition of .22. A shaped article produced by crosslinking a composition produced by the method of .23. A method for adhesively bonding substrates claim 12 , comprising applying a composition of to the surface of at least one substrate claim 12 , bringing this surface into contact with a second substrate to be bonded claim 12 , and crosslinking the composition.24. A method for adhesively bonding substrates claim 12 , comprising applying a composition of claim 12 , to the surface of at least one substrate claim 12 , crosslinking the composition to form a coated surface claim 12 , and then bringing this coated surface into contact with a second substrate to be bonded. This application is the U.S. National Phase of PCT Appln. No. PCT/EP2016/065039 filed Jun. 28, 2016, the disclosure of which is incorporated in its entirety by reference herein.The invention relates to crosslinkable compositions based on silane-crosslinking prepolymers, to ...

System and method for producing a component from a fiber-reinforced plastic material

A system for producing a component from a fiber-reinforced plastic material with a multi-axial motion device having a base, and a holding installation movable by the motion device. A material dispensing head is disposed on the holding installation. There is at least one fiber dispensing installation and at least one thermoplastic dispensing roll. At least one first feed line is coupled to the dispensing installation and at least one second feed line is coupled to the thermoplastic dispensing roll. The dispensing installation and the dispensing roll are disposed outside the motion device. The first and second feed lines are connected to the material dispensing head. The material dispensing head is configured to melt plastic material delivered by the dispensing roll and, when dispensing the fibers delivered by the dispensing installation, for coating the fibers with the melted plastic material or embedding the fibers in the plastic material.

Method for producing organyloxysilyl-terminated polymers

Metal catalysts employed in the preparation of organyloxysilyl-functional, moisture curable polymers, are deactivated by cheating with specific chelating agents. Compositions containing the polymers exhibit improved storage stability.

CROSS-LINKABLE COATING COMPOUNDS BASED ON ORGANYL-OXYSILANE-TERMINATED POLYMERS

Floor coatings with improved properties are prepared from alkoxysilyl-functional polymers, silicone resins with a high alkoxy group content, and a filler component, at least a portion of which contains large particle sizes.

Method for checking a time-discrete signal value of a sensor for freedom from errors

The invention relates to a method for checking a time-discrete signal value of a sensor for freedom from errors, wherein the signal value of the sensor is converted into a first measured value and a second measured value by two different evaluating devices of an electronic system, wherein the first and second measured values are transmitted to a control system by the electronic system, and the control system calculates a first control signal from the first measured value and, in parallel thereto, a second control signal from the second measured value, wherein the control system comprises a comparator which compares the first control signal and second control signal to verify the identity thereof.

Continuous gas-phase polymerization processes

Olefin polymerization process

High-molecular polypropylene with a broad distribution of the molecular weight and a short isotactic sequence length

Propylene polymers with 0 to 2.5 wt. % C2- to C10- olefin-comonomers, an Mw of 350,000 to 1,000,000 g/mol, an Mw/Mn of 4 to 10, a proportion by weight of the polymer fraction with a viscosity number of 50 to 1400 ml/g of 20 to 80 % of the whole polymer and a polymer fraction with a viscosity number of 200 to 400 ml/g of 18 to 20 % of the whole polymer, and an isotactic sequence length of 50 to 100.

Catalyst system for carrying out olefin polymerization comprising a calcined hydro-talcite serving as a supporting material

Catalyst system for olefin polymerization comprising A) at least one calcined hydrotalcite, B) at least one organic transition metal compound, C) optionally one or more cation-forming compounds and D) at least one organic magnesium compound.

Process for preparing a supported catalyst system for olefin polymerization, the catalyst system and its use

The invention refers to a process for preparing a supported catalyst system for the polymerization of olefins comprising at least one active catalyst component on a support, the process comprising A) impregnating a dry porous support component with a mixture comprising at least one precatalyst, at least one cocatalyst, and a first solvent, such that the total volume of the mixture is from 0.8 to 2.0 times the total pore volume of the support component, and B) thereafter, adding a second solvent in an amount of more than 1.5 times the total pore volume of the support component. The invention refers further to a catalyst system made by this process and the use of this catalyst system for polymerization or copolymerization of olefins.

Catalyst system for carrying out olefin polymerization comprising a calcined hydro-talcite serving as a supporting material

Catalyst system for olefin polymerization comprising A) at least one calcined hydrotalcite, B) at least one organic transition metal compound, C) optionally one or more cation-forming compounds and D) at least one organic magnesium compound.

Process for preparing a supported catalyst system for olefin polymerization, the catalyst system and its use

The invention refers to a process for preparing a supported catalyst system for the polymerization of olefins comprising at least one active catalyst component on a support, the process comprising A) impregnating a dry porous support component with a mixture comprising at least one precatalyst, at least one cocatalyst, and a first solvent, such that the total volume of the mixture is from 0.8 to 2.0 times the total pore volume of the support component, and B) thereafter, adding a second solvent in an amount of more than 1.5 times the total pore volume of the support component. The invention refers further to a catalyst system made by this process and the use of this catalyst system for polymerization or copolymerization of olefins.

Process for the preparation of supported catalysts

Olefin polymerization process

A process for polymerizing one or more alpha-olefins of formula CH 2 ═CHT wherein T is a hydrogen atom or a C 1 –C 20 alkyl radical comprising the following steps: a) contacting in a continuous way one or more of said alpha olefins with a metallocene based catalyst system in a loop reactor, wherein: (i) the reaction is carried out in a liquid medium; (ii) the average residence time of the metallocene-based catalyst system is not more than 30 minutes; (iii) the temperature of the loop ranges from 25° to 70° C.; in order to obtain a polymerization degree ranging from 60 to 500 g per gram of catalyst system; b) feeding in continuous the prepolymerized metallocene-based catalyst system obtained in step a) into a polymerization reactor C) polymerizing one or more alpha-olefins, the same or different from the alpha olefins used in step a), in the presence of said prepolymerized metallocene-based catalyst system.

Supported catalyst system

A nano platelet gibbsite treated with compound of formula (ORa)3 Si-Rb or of formula Rc-COOH wherein Ra equal to or different from each other is a C1-C10 alkyl radical; Rb is a C5-C30 hydrocarbon radical and Rc is a C5-C30 hydrocarbon radical can be used as catalyst support.

Transition metal compound, ligand system, catalyst system and the use of the latter for polymerisation and copolymerisation of olefins

A process for the polymerization of olefins, in particular a process for the copolymerization of propylene with further olefins, is carried out in the presence of highly active catalyst systems comprising specifically selected metallocenes, in particular ones which bear different substituents in position 2 and position 4 on an indenyl ligand. Novel polypropylene copolymers can be obtained by this process.

Transition metal compound, ligand system, catalyst system and its use for the polymerization and copolymerization of olefins

A process for the polymerization of olefins, in particular a process for the copolymerization of propylene with further olefins, is carried out in the presence of highly active catalyst systems comprising specifically selected metallocenes, in particular ones which bear different substituents in position 2 position 4 on an indenyl ligand. Novel polypropylene copolymers can be obtained by this process.

Transition metal compound, ligand system, catalyst system and the use of the latter for polymerisation and copolymerisation of olefins

A process for the polymerization of olefins, in particular a process for the copolymerization of propylene with further olefins, is carried out in the presence of highly active catalyst systems comprising specifically selected metallocenes, in particular ones which bear different substituents in position 2 and position 4 on an indenyl ligand. Novel polypropylene copolymers can be obtained by this process.

Transition metal compound, ligand system, catalyst system and its use for the polymerization and copolymerization of olefins

A process for the polymerization of olefins, in particular a process for the copolymerization of propylene with further olefins, is carried out in the presence of highly active catalyst systems comprising specifically selected metallocenes, in particular ones which bear different substituents in position 2 and position 4 on an indenyl ligand. Novel polypropylene copolymers can be obtained by this process.

Method for producing metallocenes

The invention relates to a method for producing rac/meso metallocenes, the rac/meso metallocenes themselves, and their use in the production of polyolefins.

Process for the preparation of supported catalysts

The present invention refers to a process for the preparation of supported catalysts for the polymerization of olefins comprising at least a late transition metal complex, wherein the process comprises two steps In the first step a catalytically active component comprising at least one late transition metal complex, optionally in the presence of one or more cocatalysts is mixed with a support, and in the second step the obtained mixture is treated at a reduced pressure under a flow of inert gas at a temperature equal to or below 40°C to obtain a supported catalyst The method is especially useful for the preparation of dual supported catalysts, useful in the gasphase polymerization of olefins.

Process for the preparation of supported catalysts

The present invention refers to a process for the preparation of supported catalysts for the polymerization of olefins comprising at least a late transition metal complex, wherein the process comprises two steps. In the first step a catalytically active component comprising at least one late transition metal complex, optionally in the presence of one or more cocatalysts is mixed with a support; and in the second step the obtained mixture is treated at a reduced pressure under a flow of inert gas at a temperature equal to or below 40° C. to obtain a supported catalyst. The method is especially useful for the preparation of dual supported catalysts, useful in the gas-phase polymerization of olefins.

Method for producing metallocenes

A process for preparing rac/meso-metallocenes, the rac/meso-metallocenes themselves and the use of the rac/meso-metallocenes for preparing isotactic polyolefins are described.

Preparation of supported catalyst systems containing reduced amounts of aluminoxanes

The present invention relates to a process for preparing a catalyst solid for olefin polymerization, comprising a finely divided support, an aluminoxane and a metallocene compound, which comprises a) firstly combining the finely divided support with the aluminoxane and subsequently b) adding the reaction product of a metallocene compound with at least one organometallic compound to the modified support, catalyst solids obtainable by this process, catalyst systems comprising these catalyst solids, their use for the polymerization of olefins and a process for the polymerization of olefins.

Olefin polymerization process

A process for polymerizing one or more alpha-olefins of formula CH 2 ═CHT wherein T is a hydrogen atom or a C 1 -C 20 alkyl radical comprising the following steps: a) contacting in a continuous way one or more of said alpha olefins with a metallocene based catalyst system in a loop reactor, wherein: (i) the reaction is carried out in a liquid medium; (ii) the average residence time of the metallocene-based catalyst system is not more than 30 minutes; (iii) the temperature of the loop ranges from 25° to 70° C.; in to obtain a polymerization degree ranging from 60 to 500 g per gram of catalyst system; b) feeding in continuous the prepolymerized metallocene-based catalyst system obtained in step a) into a polymerization reactor C) polymerizing one or more alpha-olefins, the same or different from the alpha olefins used in step a), in the presence of said prepolymerized metallocene-based catalyst system.

Propylene polymer, useful for the production of water pipes, has a Mw of 350,000-1,000,000 g/mol, Mw/Mn of 4-10, contains polymer fractions having a viscosity number of 500-1400 ml/g and 200-400 ml/g

A propylene polymer (I) contains 0-2.5 wt.% 2-10C olefin comonomers, has a Mw of 350,000-1,000,000 g/mol, Mw/Mn of 4-10, contains 20-80 % of a polymer fraction having a viscosity number of 500-1400 ml/g and 20-80 % of a polymer fraction having a viscosity number of 200-400 ml/g and has an isotactic sequence length of 50-100. Independent claims are included for fibers, film and molded articles prepared using the polymer (I).

Catalyst solid containing pyrogenic silicas for olefin polymerization

A catalyst solid comprising: A) support particles having a mean particle diameter d50 of from 5 to 200 mu m and a specific surface area of from 30 to 1 000 m<2>/g and obtainable by agglomeration of primary particles of a pyrogenic silica having a mean particle diameter d50 of from 1 to 50 nm, and B) at least one organic transition metal compound, can be used for the polymerization or copolymerization of olefins.

CATALYST SYSTEM FOR THE SOLVENT-FREE POLYMERIZATION OF 1,3-DIENES TO POLYDIENES

Die Erfindung betrifft ein Katalysatorsystem zur loesungsmittelfreien Polymerisation von 1,3-Dienen, vorzugsweise * zu Polydienen mit hohem Gehalt an 1,4-cis-Strukturen und Molmassen zwischen 500 bis 10 000 g/Mol. Ziel und Aufgabe ist es, einen Katalysator fuer die koordinative Polymerisation von 1,3-Dienen in Masse zu entwickeln, wobei gelfreie Polymere vorstehend genannter Eigenschaften entstehen sollen. Die Aufgabe wird durch ein Katalysatorsystem geloest, das aus einer Nickelverbindung, Organoaluminiumverbindung, einem Alkenylhalogenid und einer Lewis-Base besteht.{Katalysatorsystem; 1,3-Diene; koordinative Polymerisation; loesungsmittelfreie Polymerisation; 1,4-cis-Struktur; gelfreie Polymere; Molmasse; Nickelverbindung; Organoaluminiumverbindung; Alkenylhalogenid; Lewis-Base; Polydien} The invention relates to a catalyst system for the solvent-free polymerization of 1,3-dienes, preferably to polydienes with a high content of 1,4-cis structures and molecular weights of 500 to 10,000 g / mol. The aim and the object is to develop a catalyst for the co-ordinative polymerization of 1,3-dienes in bulk, to give gel-free polymers of the aforementioned properties. The object is achieved by a catalyst system consisting of a nickel compound, organoaluminum compound, an alkenyl halide and a Lewis base. 1,3-dienes; coordinative polymerization; solvent-free polymerization; 1,4-cis structure; gel-free polymers; Molar mass; Nickel compound; organoaluminum compound; alkenyl; Lewis base; polydiene}

Catalyst system for carrying out olefin polymerization comprising a calcined hydrotalcite serving as a supporting material

Catalyst solid for olefin polymerization comprising A) at least one calcined hydrotalcite and B) at least one organic transition metal compound, and also a catalyst system comprising the catalyst solid, the use of the catalyst solid for the polymerization or copolymerization of olefins and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst solid.

SUPPORTED POLYMERIZATION CATALYST CONTAINING AGGLOMERATED PYROGENIC SILICON DIOXYD

Rapid-cure, one-component mixtures, which contain alkoxysilane-terminated polymers

One-component, moisture curing compositions which exhibit rapid curing, even with exceptionally low levels of catalyst or with no catalyst at all, can be formulated from alkoxysilane-terminated polymers having alkoxysilane groups bonded to an electronegative, free electron-pair-containing heteroatom via a methylene linking group. Polymer blends containing the alkoxysilane-terminated polymers exhibit rapid cure, even at room temperature, and allow the use of nitrogen containing components such as adhesion promoters.

Alcoxy cross-linking, single-component, moisture-hardening materials

Alkoxy-crosslinking one-component moisture curing compositions contain a polymer bearing (alkoxy)(methyl)silylalkyl-terminal groups, and specific silanes as described herein. The compositions exhibit improved shelf life and yet retain other desirable characteristics.

Alkoxysilanes and Use Thereof In Alkoxysilane Terminated Prepolymers

Storage stable aspartyl α-aminosilanes are useful in applications where reactive α-aminosilanes have been used. Alkoxysilyl-terminated prepolymers are easily prepared therefrom and offer high reactivity to water or atmospheric moisture, even when the alkoxy groups are ethoxy groups.

Olefin polymerization process

A process for polymerizing one or more alpha-olefins of formula CH2=CHT wherein T is a hydrogen atom or a C1-C20 alkyl radical comprising the following steps: a) contacting in a continuous way one or more of said alpha olefins with a metallocene based catalyst system in a loop reactor, wherein: (i) the reaction is carried out in a liquid medium; (ii) the average residence time of the metallocene-based catalyst system is not more than 30 minutes; (iii) the temperature of the loop ranges from 25° to 70°C; in order to obtain a polymerization degree ranging from 60 to 500 g per gram of catalyst system; b) feeding in continuous the prepolymerized metallocene-based catalyst system obtained in step a) into a polymerization reactor C) polymerizing one or more alpha-olefins, the same or different from the alpha­ olefins used in step a), in the presence of said prepolymerized metallocene-based catalyst system.

Continuous gas-phase polymerization processes

The present disclosure relates to a continuous process for the preparation of ethylene homopoly- mers or ethylene copolymers comprising polymerizing ethylene or copolymerizing ethylene and one or more other olefins in the presence of a chromium catalyst in a gas-phase polymerization reactor which is equipped with a cycle gas line for withdrawing reactor gas from the reactor, lead- ing the reactor gas through a heat-exchanger for cooling and feeding the reactor gas back to the reactor, wherein the polymerization is carried out at a temperature from 30°C to 130°C and a pressure of from 0.1 to 10 MPa and an aliphatic carboxylic acid ester having from 8 to 24 carbon atoms is added.

Continuous gas-phase polymerization processes

The present disclosure relates to a continuous process for the preparation of ethylene homopoly- mers or ethylene copolymers comprising polymerizing ethylene or copolymerizing ethylene and one or more other olefins in the presence of a chromium catalyst in a gas-phase polymerization reactor which is equipped with a cycle gas line for withdrawing reactor gas from the reactor, lead- ing the reactor gas through a heat-exchanger for cooling and feeding the reactor gas back to the reactor, wherein the polymerization is carried out at a temperature from 30°C to 130°C and a pressure of from 0.1 to 10 MPa and an aliphatic carboxylic acid ester having from 8 to 24 carbon atoms is added.

Continuous gas-phase polymerization processes

The present disclosure relates to a continuous process for the preparation of ethylene homopolymers or ethylene copolymers comprising polymerizing ethylene or copolymerizing ethylene and one or more other olefins in the presence of a chromium catalyst in a gas-phase polymerization reactor which is equipped with a cycle gas line for withdrawing reactor gas from the reactor, leading the reactor gas through a heat-exchanger for cooling and feeding the reactor gas back to the reactor, wherein the polymerization is carried out at a temperature from 30° C. to 130° C. and a pressure of from 0.1 to 10 MPa and an aliphatic carboxylic acid ester having from 8 to 24 carbon atoms is added.

Modular solar panel

The panel has an absorber unit (1) with an absorber plate (2) for absorption of sunlight. Channels (5) are connected with the absorber plate such that heat is transferred from the absorber plate to a heat conducing medium. The absorber plate has a selectively absorbent coating, where the coating is high temperature proof. A bottom plate (3) is arranged underneath the absorber plate and is sealingly connected with the absorber plate. The bottom plate and/or the absorber plate have embossings that form the channels for the medium after the connection of the plates. An independent claim is also included for a method of manufacturing a solar panel.

Curable composition containing surface-modified particles

The invention relates to curable compositions Z, which contain a binding agent BM that carries at least one ethylenically unsaturated group, in addition to particles P that have at least one ethylenically unsaturated group on their surface and comprise groups of general formula (I), -SiR22-(CR32)n-A-D-C. In said formula, R2 represents -(CR32)n-A-D-C or a hydrocarbon group comprising between 1 and 12 carbon atoms, the carbon chain of said hydrocarbon group being interrupted by non-adjacent oxygen, sulphur or NR4 groups, R3 represents hydrogen or a hydrocarbon group comprising between 1 and 12 carbon atoms, the carbon chain of said hydrocarbon group being interrupted by non-adjacent oxygen, sulphur or NR4 groups, R4 represents hydrogen or a hydrocarbon group comprising between 1 and 12 carbon atoms, A represents oxygen, sulphur, =NR4 or =N-(D?C), D represents a carbonyl group, or an alkene, cycloalkene or arylene group comprising between 1 and 12 carbon atoms, the carbon chain being interrupted by non-adjacent oxygen, sulphur, or NR4 groups, C represents a terminal unsaturated group and n represents values that are greater than or equal to 1.

Isocyanatfrie schäumbare mischungen mit hoher härtungsgeschwindigkeit

Gegenstand der Erfindung sind isocyanatfreie schäumbare Mischungen, enthalten (A) isocyanatfreie, alkoxysilanterminierte Prepolymere (A) welche über Silanterminierungen der allgemeinen Formel [1], verfügen, in der X und Y ein Sauerstoffatom, eine N-R3/Gruppe oder ein Schwefelatom, R1 einen Alkyl-, Alkenyl- oder Arylrest mit 1-10 Kohlenstoffatomen, R2 einen Alkylrest mit 1/2 Kohlenstoffatomen oder einen - Oxaalkyl-alkylrest mit insgesamt 2/10 Kohlenstoffatomen, R3 ein Wasserstoffatom, einen Alkyl-, Cycloalkyl, -Alkenyl- oder Arylrest mit 1/10 Kohlenstoffatomen oder eine -CH2/ SiR1z(OR2)¿3-z-Gruppe und, z die Werte 0 oder 1 bedeuten, mit der Massgabe, dass mindestens eine der beiden Gruppen X oder Y eine NH-Funktion darstellt und (B) Treibmittel.

Filter apparatus for a system through which a gas flow flows and which comprises a working chamber for temporarily receiving product to be treated

The filter apparatus is designed for a system (1, 2) through which a gas flow flows and which comprises a working chamber (14, 24) for temporarily receiving product to be treated. The filter apparatus has a replaceable filter unit (3) having a filter connection (37), which is provided at an inlet (371) and which is intended for the detachable connection to a chamber connector (17, 27) that is present at the working chamber (14, 24) and located at an outlet opening (172). A filter cover (39) is provided for closing the inlet (371). The filter unit (3) further comprises a filter insert (30) for cleaning the gas flow flowing over the outlet opening (172) and the inlet (371). The filter insert (30) has an outlet (302) for removing the gas flow flowing through the filter insert (30). In order to move the filter cover (39) between a position that is closed at the inlet (371) and the open position thereof, a mechanism (33) is provided, which forms an integral part with the filter unit (3). In the completed design of the filter apparatus, the filter cover (39) is detachably connected to a chamber cover (19). The mechanism (33) is also used to move the chamber cover (19) between a position that is closed at the outlet opening (172) of the chamber connection (17, 27) and the open position thereof. The chamber cover (19) is disposed on the side of the working chamber (14, 24).

Positioning device in medical apparatus

A body part such as a patient's head is positioned for treatment purposes by holding a treatment point defined relative to marks attached to the body part is held in a desired position. To this end, at least two picture signal generating sensors are aligned to observe the marks. A picture processing device for processing the pictures of the marks is provided to define marker points, which are determined by the marks and define the actual position of the body part. Furthermore, a signal processing and control device is provided for computing the actual position from the observed positions of the marker points, for comparing the actual position with a desired position and for generating actuating signals, which depend on the error between actual position and desired position. The actuating signals are applied to actuators, which engage the body part. Thereby the treatment point can be returned to the desired position, if it has deviated therefrom.

Endoprosthesis, especially for an artificial hip joint

The invention relates to an endoprosthesis that consists of a shaft (1) and a neck (2) that carries especially a femoral head (9) at a first end section (8). Said neck (2) can be introduced into a receptacle (4) of the shaft (1) with a second end section (17) in a pressure fit or the like. The invention is characterized in that the second end section (17) intersects with its longitudinal center axis (14) a head surface (20) of the first end section (8) that faces the femoral head (9) and a longitudinal axis (18) of the shaft (1).

Prosthesis for artificial hip joint; has neck with end section for femoral head and second end section that fits in shaft, where second end section axis intersects first end section and shaft axis

The prosthesis has a shaft (1) for implantation in a femur and a neck (2) with a first end section (8) to support a femoral head. The neck has a second end section (17) that can be inserted into an adapter (4) in the shaft by a pressure fit. The longitudinal centre axis of the second end section intersects a head surface (20) of the first end section, which faces the femoral head, and the shaft longitudinal axis.

Catalytic solid supported on calcined hydrotalcite for olefinic polymerisation

Catalyst solid for olefin polymerization comprising A) at least one calcined hydrotalcite and B) at least one organic transition metal compound, and also a catalyst system comprising the catalyst solid, the use of the catalyst solid for the polymerization or copolymerization of olefins and a process for preparing polyolefins by polymerization or copolymerization of olefins in the presence of the catalyst solid.

Catalytic solid supported on calcined hydrotalcite for olefinic polymerisation

The invention relates to a catalytic solid for olefinic polymerisation, comprising A) at least one calcined hydrotalcite and B) at least one organic transition metal compound. The invention further relates to a catalyst system, comprising the catalytic solid, the use of the catalytic solid for the polymerisation or co-polymerisation of olefins and a method for the production of polyolefins by polymerisation or co-polymerisation of olefins in the presence of the catalytic solid.

High-activity olefin polymerization catalysts leaving little or no particulate residue in the polymer comprise calcined hydrotalcite carrier and organo-transition metal compound

A catalyst solid comprises: (A) a calcined hydrotalcite; and (B) an organo-transition metal compound. An Independent claim is included for a pro-catalyst comprising an (A) and (B) solid as above with a polymerized 2-6C olefin at a weight ratio of 1 : 0.1-200.

Supported catalyst system, a process for its preparation and its use for the polymerization of olefins

Method for producing olefin polymers with a higher melting point

The invention relates to a method for producing polyolefins by polymerizing olefins at pressures ranging from 0.5 to 3,000 bars and at temperatures ranging from -60 to 300 °C in the presence of a metallocene carrier catalyst. To this end, a metallocene carrier catalyst is used containing the following active constituents: a) a metallocene complex and b) a metallocenium ion forming compound selected from the group consisting of Lewis acids and ionic compounds with non-coordinating anions.

Auf calciniertes hydrotalcit geträgerter katalysatorfeststoff zur olefinpolymerisation

Drilling systems with sensors for determining properties of drilling fluid downhole

The present invention provides a drilling system for drilling oilfield boreholes or wellbores utilizing a drill string having a drilling assembly conveyed downhole by a tubing (usually a drill pipe or coiled tubing). The drilling assembly includes a bottom hole assembly (BHA) and a drill bit. The bottom hole assembly preferably contains commonly used measurement-while-drilling sensors. The drill string also contains a variety of sensors for determining downhole various properties of the drilling fluid. Sensors are provided to determine density, viscosity, flow rate, clarity, compressibility, pressure and temperature of the drilling fluid at one or more downhole locations. Chemical detection sensors for detecting the presence of gas (methane) and H 2 S are disposed in the drilling assembly. Sensors for determining fluid density, viscosity, pH, solid content, fluid clarity, fluid compressibility, and a spectroscopy sensor are also disposed in the BHA. Data from such sensors may is processed downhole and/or at the surface. Corrective actions are taken based upon the downhole measurements at the surface which may require altering the drilling fluid composition, altering the drilling fluid pump rate or shutting down the operation to clean wellbore. The drilling system contains one or more models, which may be stored in memory downhole or at the surface. These models are utilized by the downhole processor and the surface computer to determine desired fluid parameters for continued drilling. The drilling system is dynamic, in that the downhole fluid sensor data is utilized to update models and algorithms during drilling of the wellbore and the updated models are then utilized for continued drilling operations.

Supported catalyst system

A nano platelet gibbsite treated with compound of formula (ORa)3 Si-Rb or of formula Rc-COOH wherein Ra equal to or different from each other is a C1-C10 alkyl radical; Rb is a C5-C30 hydrocarbon radical and Rc is a C5-C30 hydrocarbon radical can be used as catalyst support.

Method for producing metallocenes

The invention relates to a method for producing rac/meso metallocenes, the rac/meso metallocenes themselves, and their use in the production of polyolefins.

PROCEDURE FOR OBTAINING METALOCENES.

La presente invención se refiere a un procedimiento de fabricación de metalocenos rac/meso, dichos metalocenos y la utilización de dichos metalocenos, para fabricar poliolefinas isotácticas. The present invention relates to a method of manufacturing rac / meso metallocenes, said metallocenes and the use of said metallocenes, for manufacturing isotactic polyolefins.

Geträgertes katalysatorsystem, verfahren zu seiner herstellung und seine verwendung zur polymerisation von olefinen

Die vorliegende Erfindung betrifft ein Katalysatorsystem, das erhalten wird, in dem mindestens ein Metallocen, mindestens einen Cokatalysator und mindestens einen inertisierten Träger gemischt werden. Die vorliegende Erfindung betrifft weiter ein Verfahren zur Herstellung eines frei fließenden geträgerten Katalysatorsystems, wobei a) eine Metallocen/Cokatalysatormischung in einem Löse- oder Suspensionsmittel hergestellt wird, b) die Metallocen/Cokatalysatormischung auf einen porösen, bevorzugt anorganischen dehydratisierten Träger aufgebracht wird, c) das Lösungsmittel von der resultierenden Mischung entfernt wird, d) das geträgerte Katalysatorsystem isoliert wird. Die vorliegende Erfindung betrifft Homo- und/oder Copolymere mit der bevorzugten Formel Rm-CH=CH-Rn für das Monomer, worin Rm und Rn gleich oder verschieden sind und ein Wasserstoffatom oder eine kohlenstoffhaltige Gruppe mit 1 bis 10 C-Atomen bedeuten und Rm und Rn zusammen mit den sie verbindenden Atomen einen oder mehrere Ringe bilden können, erhältlich mit einem Katalysatorsystem. Die Erfindung betrifft schließlich die Verwendung der erfindungsgemäßen Polymeren zur Herstellung reißfester, harter und steifer Formkörper, wie Fasern, Filamente, Spritzgußteile, Folien, Platten oder Großhohlkörpern, wie Rohre.

Supported catalyst system, method for the production and use thereof in olefin polymerization

The invention relates to a catalyst system obtained by mixing at least one metallocene, at least one co-catalyst and at least one support which is rendered inert. The invention further relates to a method for producing a free flowing supported catalyst system wherein a) a metallocene/co-catalyst mixture is produced in a solvent or suspension agent, b) the metallocene/co-catalyst mixture is applied to a porous preferably inorganic dehydrated support, c) the solvent is removed from the resulting mixture, d) the supported catalyst system is isolated. The present invention also relates to homopolymers and/or copolymers having the preferred formula R m —CH═CH—R n for the monomer, wherein R m and R n are the same or different and mean a hydrogen atom or a group containing carbon with 1 to 10 C atoms, and R m and R n can form one or several rings with the binding atoms, which can be obtained with a catalyst system. Finally, the invention relates to the use of the inventive polymers from producing tear-resistant, hard and stiff shaped bodies such as fibers, filaments, injection-molded parts, films, plates or large hollow bodies such as tubes.

Transition metal compound, ligand system, catalyst system and the use of the latter for the polymerisation and copolymerisation of olefins

The invention relates to a method for polymerising olefins, in particular to a method for copolymerising propylene with additional olefins, in the presence of specially selected metallocenes, in particular those types of metallocenes which have different substitutions in position 2 and position 4 on the indenyl ligand, to ligand systems, to highly active catalyst systems and to novel polypropylene copolymers. The inventive polymerisation takes place in the presence of the specially selected metallocenes.

Organometallic compound, catalyst system containing this organometallic compound and its use

The invention relates to specifically substituted metallocenes and to corresponding highly active supported catalyst systems. According to the invention, said catalyst systems are used for olefin polymerization. The invention also relates to a method for producing said systems and to polymers produced with said supported catalyst systems.

Metallocenes containing partially hydrogenated p-ligands

The present invention relates to a metallocene of the formula I, ##STR1## for preparing polyolefins, where M 1 is preferably Zr, Hf or Ti, R 1 and R 2 are each a hydrogen atom, a C 1 -C 3 -alkyl group, a C 1 -C 3 -alkoxy group, a C 6 -C 8 -aryl group, a C 6 -C 8 -aryloxy group, a C 2 -C 4 -alkenyl group, a C 7 -C 10 -arylalkyl group, a C 7 -C 12 -alkylaryl group, a C 8 -C 12 -arylalkenyl group or chlorine, R 3 is a chlorine atom, a C 1 -C 3 -alkyl group, a C 2 -C 4 -alkenyl group, a C 6 -C 8 -aryl group, an NR 16 2 , SR 16 , OSiR 16 3 , SiR 16 3 or PR 16 2 radical where R 16 is chlorine, a C 1 -C 4 -alkyl group or a C 6 -C 8 -aryl group. R 4 is a hydrogen atom, R 13 is --(R 14 M 2 R 15 )--, --(R 14 CR 15 )--(R 14 CR 15 )--, --(R 14 CR 15 )--(R 14 M 2 R 15 )-- or --(R 14 CR 15 )--, where R 14 and R 15 are each a hydrogen atom, chlorine, an Si(methyl) 3 group, an N(methyl) 2 group, an N(phenyl) 2 group, an Si(phenyl) 3 group, a B(methyl) 2 group, a B(phenyl) 2 group, a C 1 -C 4 -alkyl group, in particular a methyl group, a CF 3 group, a C 6 -C 12 -aryl group, a pentafluorophenyl group, a C 1 -C 4 -alkoxy group, in particular a methoxy group, a C 2 -C 4 -alkenyl group, a C 7 -C 10 -arylalkyl group, a C 8 -C 12 -arylalkenyl group or a C 7 -C 12 -alkylaryl group, or R 14 and R 15 together with the atoms connecting them form a ring, M 2 is silicon or germanium, z is 0 or 1, R x and R y are identical where R 5 to R 9 are as defined for R 14 , and l+m+n+o+p≧2 and ≦5, and l+n+p is ≧1, where l, n, m, o or p can be 0, 1, 2 or 3 or R 5 to R 9 together with the atoms connecting them form one or more rings.

High-molecular polypropylene with a broad distribution of the molecular weight and a short isotactic sequence length

Propylene polymers containing from 0 to 2.5% by weight of C 2 -C 10 -olefin comonomers have an M w of from 350,000 to 1,000,000 g/mol, an M w /M n of from 4 to 10, a proportion by weight of the polymer fraction having a viscosity number of from 500 to 1400 ml/g of from 20 to 80% of the total polymer and a proportion by weight of a polymer fraction having a viscosity number of from 200 to 400 ml/g of from 80 to 20% of the total polymer and an isotactic sequence length of from 50 to 100.

Organometal compound, catalyst system containing said organometal compound and its use

The invention relates to specifically substituted metallocenes and to corresponding highly active supported catalyst systems. According to the invention, said catalyst systems are used for olefin polymerization. The invention also relates to a method for producing said systems and to polymers produced with said supported catalyst systems.

Transition metal compound, ligand system, catalyst system and the use of the latter for the polymerisation and copolymerisation of olefins

The invention relates to a method for polymerising olefins, in particular to a method for copolymerising propylene with additional olefins, in the presence of specially selected metallocenes, in particular those types of metallocenes which have different substitutions in position 2 and position 4 on the indenyl ligand, to ligand systems, to highly active catalyst systems and to novel polypropylene copolymers. The inventive polymerisation takes place in the presence of the specially selected metallocenes.

Olefin polymerization process

A process for polymerizing one or more alpha-olefins of formula CH2=CHT wherein T is a hydrogen atom or a C1-C20 alkyl radical comprising the following steps: a) contacting in a continuous way one or more of said alpha olefins with a metallocene based catalyst system in a loop reactor, wherein: (i) the reaction is carried out in a liquid medium; (ii) the average residence time of the metallocene-based catalyst system is not more than 30 minutes; (iii) the temperature of the loop ranges from 25° to 70°C; in order to obtain a polymerization degree ranging from 60 to 500 g per gram of catalyst system; b) feeding in continuous the prepolymerized metallocene-based catalyst system obtained in step a) into a polymerization reactor C) polymerizing one or more alpha-olefins, the same or different from the alpha­ olefins used in step a), in the presence of said prepolymerized metallocene-based catalyst system.

Olefin polymerization process

A process for polymerizing one or more alpha-olefins of formula CH2=CHT wherein T is a hydrogen atom or a C1-C20 alkyl radical comprising the following steps: a) contacting in a continuous way one or more of said alpha olefins with a metallocene based catalyst system in a loop reactor, wherein: (i) the reaction is carried out in a liquid medium; (ii) the average residence time of the metallocene-based catalyst system is not more than 30 minutes; (iii) the temperature of the loop ranges from 25° to 70°C; in order to obtain a polymerization degree ranging from 60 to 500 g per gram of catalyst system; b) feeding in continuous the prepolymerized metallocene-based catalyst system obtained in step a) into a polymerization reactor C) polymerizing one or more alpha-olefins, the same or different from the alpha­ olefins used in step a), in the presence of said prepolymerized metallocene-based catalyst system.