Abstract: An aliphatic epoxy-terminated polysulfide polymer has the formula R?—CHOH—CH2-S—R—(Sy-R)t-S—CH2-CHOH—R? and is formed by a process, where each R is independently chosen from branched alkanediyl or branched arenediyl groups and groups with the structure —(CH2)a-O—(CH2)b-O—(CH2)c- and about 0 to about 20% of the number of R-groups are branched alkanediyl or branched arenediyl groups and about 80 to about 100% of the number of R-groups have the structure —(CH2)a-O—(CH2)b-O—(CH2)c-, where t is from about 1 to about 60, y is an average value of from about 1.0 to about 2.5, b is an integer value of from about 1 to about 8, and a and c are independently integers from about 1 to about 10, and where each R? is independently a particular radical where, m, n, o, p, q and r independently have a value of from about 1 to about 10.

Abstract: Process for the production of a liquid mercapto-terminated polythioethersulfide comprising the step of reacting, at a temperature in the range 0-100° C. and in the presence of a catalyst: at least one compound selected from the group consisting of (i) dimercapto-dioxa-alkanes (DMDAs) and (ii) glycol di(mercapto carboxylic acid ester)s (GDMEs), at least one dimercapto-dialkyl sulfide (DMDS) at least one di-epoxide, and optionally at least one branching agent selected from compounds having at least three terminal groups selected from epoxy and mercapto groups, wherein the molar ratio (DMDA+GDME)/DMDS is in the range 1.1-4.0.

Abstract: Process for the production of a liquid mercapto-terminated polythioethersulfide comprising the step of reacting, at a temperature in the range 0-100° C. and in the presence of a catalyst: at least one compound selected from the group consisting of (i) dimercapto-dioxa-alkanes (DMDAs) and (ii) glycol di(mercapto carboxylic acid ester)s (GDMEs), at least one dimercapto-dialkyl sulfide (DMDS) at least one di-epoxide, and optionally at least one branching agent selected from compounds having at least three terminal groups selected from epoxy and mercapto groups, wherein the molar ratio (DMDA+GDME)/DMDS is in the range 1.1-4.0.

Abstract: An aliphatic epoxy-terminated polysulfide polymer has the formula R?—CHOH—CH2-S—R—(Sy-R)t-S—CH2-CHOH—R? and is formed by a process, where each R is independently chosen from branched alkanediyl or branched arenediyl groups and groups with the structure —(CH2)a-O—(CH2)b-O—(CH2)c- and about 0 to about 20% of the number of R-groups are branched alkanediyl or branched arenediyl groups and about 80 to about 100% of the number of R-groups have the structure —(CH2)a-O—(CH2)b-O—(CH2)c-, where t is from about 1 to about 60, y is an average value of from about 1.0 to about 2.5, b is an integer value of from about 1 to about 8, and a and c are independently integers from about 1 to about 10, and where each R? is independently a particular radical where, m, n, o, p, q and r independently have a value of from about 1 to about 10.

Abstract: Process for the preparation of a polysulfide comprising the step of reacting in the absence of a dihaloalkane a bis(2-dihaloalkyl)formal in the presence of (i) a pre-polymer (I) according to structure (I) X—(R2—O)n—CH2—O—(R1—O)m—CH2—(O—R2)p—X??(I), wherein R1 and R2 can be the same or different and are selected from alkane chains containing 2-10 carbon atoms, X is a halogen atom, and n, m, and p are integers that can be the same or different and have a value in the range 1-6, with either (i) sodium polysulfide or (ii) a combination of sodium hydrosulfide and sulfur.

Abstract: Process for the preparation of a polysulfide comprising the step of reacting in the absence of a dihaloalkane a bis(2-dihaloalkyl)formal in the presence of (i) a pre-polymer (I) according to structure (I) X—(R2—O)n—CH2—O—(R1—O)m—CH2—(O—R2)p—X??(I), wherein R1 and R2 can be the same or different and are selected from alkane chains containing 2-10 carbon atoms, X is a halogen atom, and n, m, and p are integers that can be the same or different and have a value in the range 1-6, with either (i) sodium polysulfide or (ii) a combination of sodium hydrosulfide and sulfur.

Abstract: Process for the preparation of a mercapto-terminated liquid polymer comprising the steps of: a) reacting (para)formaldehyde with a halo-alcohol to form a reaction mixture comprising bis(2-dihaloalkyl)formal and b) reacting the reaction mixture of step a) with either (i) sodium polysulfide or (ii) a combination of sodium hydrosulfide and sulfur, wherein the process is performed in the presence of a branching agent selected from the group consisting of di-aldehydes and their corresponding actetals and hemi-acetals.

Abstract: In order to solve the problem, in the case of a trailer coupling comprising a ball neck supporting a coupling ball, and also comprising a socket receptacle for a socket for the power supply of units acting on the coupling ball, the socket having a socket housing with a housing sleeve, which is provided with an insertion opening, and the insertion opening being closable by a cover that is mounted pivotably on the housing sleeve, of being able to mount the sockets as conveniently and easily as possible, it is proposed that the socket receptacle has a receiving channel, into which the housing sleeve extends starting from a first side of the socket receptacle, that the housing sleeve bears against the first side of the socket receptacle via a bearing surface, and that the housing sleeve is fixed to the socket receptacle by a retaining element, which is fitted starting from a second side of the socket receptacle and which is supported on the socket receptacle and is connected to the housing sleeve by a latched con

Abstract: Pre-polymer according to structure (I) X—(R2—O)n—CH2—O—(R1—O)m—CH2—(O—R2)p—X (I) wherein R1 and R2 can be the same or different and are selected from alkane chains containing 2-10 carbon atoms, X is a halogen atom, and n, m, and p are integers that can be the same of different and have a value in the range 1-6. The use of this pre-polymer in the preparation of a liquid polysulfide polymer allows better control over the sulfur and oxygen content and the polarity of the resulting polymer.

Abstract: Process for the preparation of a mercapto-terminated liquid polymer comprising the steps of: a) reacting (para)formaldehyde with a halo-alcohol to form a reaction mixture comprising bis(2-dihaloalkyl)formal and b) reacting the reaction mixture of step a) with either (i) sodium polysulfide or (ii) a combination of sodium hydrosulfide and sulfur, wherein the process is performed in the presence of a branching agent selected from the group consisting of di-aldehydes and their corresponding actetals and hemi-acetals.

Abstract: A carrier for a display module, in particular for an LED display module, having an arrangement for accommodating and/or fastening a display module, and having an air inlet opening and at least one air outlet opening, connected to one another by air ducts through which cooling air can flow to cool the display module, the carrier having a central air inlet opening that is connected via air ducts to at least two air outlet openings situated at different locations of the carrier, and the air ducts being fashioned between ribs provided on the carrier. Also described is a display device having such a carrier, and a display module carried thereby.

Abstract: Pre-polymer according to structure (I) X—(R2—O)n—CH2(R1—O)m—CH2—(O—R2)p—X (I) wherein R1 and R2 can be the same or different and are selected from alkane chains containing 2-10 carbon atoms, X is a halogen atom, and n, m, and p are integers that can be the same of different and have a value in the range 1-6. The use of this pre-polymer in the preparation of a liquid polysulfide polymer allows better control over the sulfur and oxygen content and the polarity of the resulting polymer.

Abstract: In order to solve the problem, in the case of a trailer coupling comprising a ball neck supporting a coupling ball, and also comprising a socket receptacle for a socket for the power supply of units acting on the coupling ball, the socket having a socket housing with a housing sleeve, which is provided with an insertion opening, and the insertion opening being closable by a cover that is mounted pivotably on the housing sleeve, of being able to mount the sockets as conveniently and easily as possible, it is proposed that the socket receptacle has a receiving channel, into which the housing sleeve extends starting from a first side of the socket receptacle, that the housing sleeve bears against the first side of the socket receptacle via a bearing surface, and that the housing sleeve is fixed to the socket receptacle by a retaining element, which is fitted starting from a second side of the socket receptacle and which is supported on the socket receptacle and is connected to the housing sleeve by a latched con

Abstract: A carrier for a display module, in particular for an LED display module, having an arrangement for accommodating and/or fastening a display module, and having an air inlet opening and at least one air outlet opening, connected to one another by air ducts through which cooling air can flow to cool the display module, the carrier having a central air inlet opening that is connected via air ducts to at least two air outlet openings situated at different locations of the carrier, and the air ducts being fashioned between ribs provided on the carrier. Also described is a display device having such a carrier, and a display module carried thereby.

Abstract: An electronic apparatus, e.g., a central signal unit for a vehicle, has a signal receiver which operates in the optical wavelength range for receiving signals of an external signal source, and an internal signal source for emitting signals which are different from signals of the external signal source, and which operates essentially in a wavelength range which is the same as or directly adjacent to the wavelength range of the external signal source. The signal receiver and the internal signal source are situated in the apparatus behind a reflective cover. The apparatus includes a suppression unit which prevents generation of interference signals at the signal receiver.

Abstract: A device for vehicles for transmitting optical signals, for example infrared signals, includes an optical radiation source having a specified beam characteristic with a preferred direction. A deflecting structure is provided in the beam path downstream from the radiation source, by use of which the preferred direction of the beam characteristic may be deflected.

Abstract: A covering device for the interior of a motor vehicle protects an occupant from coming in contact with the supply lines installed in the vehicle, electric lines being situated as film conductors between two layers of the covering device. This permits simple assembly of a cockpit module in particular in a motor vehicle.

Abstract: A display device for a motor vehicle. In order to allow a compact, space-saving and cost-effective design and a rotation of the display with little change in position, the display device includes a display housing for mounting on a vehicle dashboard; and a display frame for accommodating a display. The display is rotatable with respect to the display housing. The display device further includes a driven element affixed on the display housing; and a drive device affixed on the display frame, having an electric motor, a worm gear and a gear-output shaft for engaging with the driven element. The electric motor arranged in a center region of the display frame and the engagement of the gear-output shaft with the driven element occurs outside the axis of rotation.

Abstract: A display device for a motor vehicle. In order to allow a compact, space-saving and cost-effective design and a rotation of the display with little change in position, the display device includes a display housing for mounting on a vehicle dashboard; and a display frame for accommodating a display. The display is rotatable with respect to the display housing. The display device further includes a driven element affixed on the display housing; and a drive device affixed on the display frame, having an electric motor, a worm gear and a gear-output shaft for engaging with the driven element. The electric motor arranged in a center region of the display frame and the engagement of the gear-output shaft with the driven element occurs outside the axis of rotation.