Abstract: The present invention relates to polyester polyols with low functionality and a process for their production, to prepolymers prepared from these polyester polyols and a process for their production, and to polyurethanes prepared from these polyester polyols and/or from these prepolymers, and to processes for their production. These polyester polyols are produced in a two-step process. In the second step of this two-step process, one or more cyclic ester monomers is reacted with one or more polyester polyols at low temperatures.

Abstract: The invention relates to a vehicle door system with two vehicle doors, with a vehicle body which encloses a passenger compartment and has a common vehicle door opening for the two vehicle doors, wherein, for closing the door opening, the vehicle doors being movable in a manner such that they move from an open position into a closed position and relative to each other and, in the closed position, each are adjacent to the other in a connecting region via a connecting end side, and with impact protection which has stiffening elements for stiffening the vehicle doors in the vehicle opening, and wherein at least one first stiffening element is arranged in the connecting region of the one vehicle door and at least one stiffening element is arranged in the connecting region of the other vehicle door.

Abstract: The present invention relates to polyester polyols with low functionality and a process for their production, to prepolymers prepared from these polyester polyols and a process for their production, and to polyurethanes prepared from these polyester polyols and/or from these prepolymers, and to processes for their production. These polyester polyols are produced in a two-step process.

Abstract: A honing machine for super finishing workpieces, e.g. by honing using a tool spindle (7), can be rotatably driven and can receive a tool. A motor rotates the tool spindle, the tool spindle (12) being arranged on a carriage (12), which can be displaced on a machine frame (16), by means of a drive device, in the direction of the rotational axis of the tool spindle. The drive device consists of a flat primary part (13) and a secondary part (17) of an electric linear motor (18), the secondary part being linearly displaceable along the primary part. One (13) of the components primary part/secondary part (13, 17) of the linear motor (18) is disposed on the machine frame (16), and the other (17) on the carriage (12).

Abstract: The present invention relates to a process for cleaning multi-product production plants for polyester polyols with a cleaning polyol. The cleaning polyol can be used as a raw material in the production of further polyols.

Abstract: A lifejacket pouch in the form of a pocket (3), is located beneath the seat surface of an aircraft seat. Wall pieces (17) move relative to each other and may be fixed in a position adjacent to each other along an opening edge (7) of the pocket (3). A closure device includes at least a pair of retaining elements to generate a closing force acting between the wall pieces at the opening edge (7). The elements may be overcome by a manually-operated tear-strip (13) for opening the pocket (3), having a tie strip (11), acting on the pair of retaining elements. A combination of a press-stud closure and a tie strip (11) on the tear strip, through which the above extends, offers a high closure security and a possibility of opening particularly simply and rapidly with a good closing force. At least one pair of retaining elements includes a press-stud closure (21, 23). The tie strip (11) has an opening (25) through which the press stud closure (21, 23) extend.

Abstract: A honing machine for super finishing workpieces, e.g. by honing using a tool spindle (7), can be rotatably driven and can receive a tool. A motor rotates the tool spindle, the tool spindle (12) being arranged on a carriage (12), which can be displaced on a machine frame (16), by means of a drive device, in the direction of the rotational axis of the tool spindle. The drive device consists of a flat primary part (13) and a secondary part (17) of an electric linear motor (18), the secondary part being linearly displaceable along the primary part. One (13) of the components primary part/secondary part (13, 17) of the linear motor (18) is disposed on the machine frame (16), and the other (17) on the carriage (12).

Abstract: The present invention relates to a process for cleaning multi-product production plants for polyester polyols with a cleaning polyol. The cleaning polyol can be used as a raw material in the production of further polyols.

Abstract: The invention relates to a lifejacket pouch in the form of a pocket (3), located beneath the scat surface of an aircraft seat, with wall pieces (17) which move relative to each other and which may be fixed in a position adjacent to each other along an opening edge (7) of the pocket (3), by means of a closure device which comprises at least a pair of retaining elements to generate a closing force acting between the wall pieces at the opening edge (7). Said elements may be overcome by means of a manually-operated tear-strip (13), for opening the pocket (3), comprising a tie strip (11), acting on the pair of retaining elements.

Abstract: The present invention relates to surface-deactivated solid isocyanates obtained by surface reaction of finely dispersed solid isocyanates with mono- or polyamines that have anionic groups or groups capable of anion formation and have primary and/or secondary amino groups.

Abstract: An improved vehicle seating row, in particular an airplane passenger seating row. The seating row is provided with at least one seat which can be displaced in the direction of the cross struts of a framework relative to the neighboring seat between two positions in which the seat row has a maximum or a minimum width and which can be locked in these positions to the framework by means of a latching mechanism, and with a hand lever mounted at one of the two end seat dividers which can be moved to three different tilted positions for actuating of the latching mechanism as well as a manually releasable locking device for the hand lever. The center position of the hand lever is associated with the released state of the latching mechanism and the two other tilted positions are associated with the effective state of the latching mechanism for the installation of the seating row with minimum or maximum widths, respectively.

Abstract: The present invention relates to a process for the preparation of polyurethanes suitable for use as thickeners for aqueous compositions by reacting at an NCO/OH equivalent ratio of 0.9:1 to 1.2:1a) a polyether component having an OH number of 10 to 30 mg KOH/g and obtained by the alkoxylation of a mixture ofa1) 30 to 80 mole % of a monofunctional alcohol or alkylphenol having 8 to 30 carbon atoms,a2) 2 to 10 mole % of sodium hydroxide or potassium hydroxide,a3) 10 to 60 mole % of water anda4) 0 to 10 mole % of a trihydric to hexahydric alcohol having a molecular weight of 92 to 600,with ethylene oxide or a mixture of ethylene oxide with up to 20 mole %, based on the total moles of alkylene oxides, of propylene oxide, in which the percentages of a1) to a4) add up to 100,withb) a polyisocyanate component containing at least one organic diisocyanate, optionally in admixture with up to 20 mole %, based on the total moles of component b), of higher than difunctional polyisocyanates.

Abstract: Water soluble or water dispersible polyurethane, which are suitable as thickeners for aqueous systems and prepared from a selected alcohol component a) based on a hydrophilic/hydrophobic mixture of alcohols and an isocyanate component b), and to their use for thickening aqueous systems.

Abstract: In an electrical switching or control unit, several components are arranged, sealed, within a housing (24). A plug body (10) is accommodated in an aperture (14) of a collar-like front plate (13) which itself is fixed to the edge of the housing (24). The connection between the plug body (10) and the front plate (13) is made by an locking cam (21) which is inserted in grooves (18, 19) which are opposite each other in the front plate (13) and the plug body (10) and which is fixed in its position by the housing (24).

Abstract: A housing for an electronic circuit, especially for a control electronic device of a motor vehicle, has a printed circuit board adapted to carry an electronic circuit, a plug strip, a front plate, a cooling frame mounted on the board and having at least one cooling portion, power elements connected with the cooling portion in a heat conductive manner. The front plate is provided with cooling ribs and the cooling frame is provided with at least one cooling leg facing toward the plug strip so that the plug strip is located between the front plate with the cooling ribs and the cooling leg of the cooling frame. The front plate and the cooling frame are connected through a heat conducting web on the front plate in a heat conducting manner.

Abstract: A brush-honing machine including a brush-honing tool which is displaceable both axially and rotationally thereby displacing a plurality of brush elements of the tool both axially and radially. A step motor is provided the angular movement of which is translated into the noted axial and radial displacement.

Abstract: The new (meth)acrylic acid derivatives containing urethane groups can be prepared by reaction of a (meth)acrylic acid ester with diisocyanates and subsequent reaction with polyols. The compounds can be used for dental materials.

Abstract: The present invention relates to a powder lacquer containing a mixture of(A) a polyisocyanate component in power form which is solid below about 40.degree. C. and liquid above about 150.degree. C. and(B) a organic polyhydroxyl component in powder form which is solid below about 40.degree. C. and liquid above about 150.degree. C.,components (A) and (B) being present in quantities corresponding to an equivalent ratio of isocyanate groups to hydroxyl groups of about 0.6:1 to 1.2:1, characterized in that component (A) is based on a polyisocyanate or polyisocyanate mixture which(a) does not contain any blocking agents for isocyanate groups,(b) has a content of free isocyanate groups (expressed as NCO) attached to tertiary, aliphatic or cycloaliphatic carbon atoms of about 8 to 24% by weight and an average NCO functionality of at least 2.1,(c) has a urethane group content (expressed as --NH--CO--O--) of about 3 to 30% by weight and(d) has an isocyanurate group content (expressed as C.sub.3 N.sub.3 O.sub.

Abstract: The new (meth)acrylic acid derivatives containing urethane groups can be prepared by reaction of a (meth)acrylic acid ester with diisocyanates and subsequent reaction with polyols. The compounds can be used for dental materials.

Abstract: The present invention is directed to isocyanato isocyanurates prepared from diisocyanates which contain a sterically unhindered isocyanate group bound to a primary aliphatic carbon atom and a sterically hindered isocyanate group which is bound to a tertiary carbon atom forming part of a cycloaliphatic ring system, said diisocyanate having an NCO content of about 20 to 50% by weight. The present invention is further directed to a process for preparing these isocyanato isocyanurates by catalytic trimerization and the use of the isocyanato isocyanurates in a process for the production of polyisocyanate polyaddition products, preferably two-component polyurethane stoving lacquers.