Abstract: The present invention provides organofunctional siloxane coupling agents, dipodal siloxanes, siloxane block copolymers and a specific method for preparing these organofunctional siloxanes through an addition reaction of hydrido alkoxysilane and organofunctional disiloxanes to an organocyclosiloxane with a catalyst. The addition reaction of the current invention does not result in polymerization and therefore the novel siloxane couplings agents are free of cyclosiloxanes and polymeric siloxanes. This makes them apt for adhesives, coatings and sealant applications. The present invention also relates to the use of these organofunctional siloxane compounds for the treatment of fillers and surfaces.

Abstract: In a transmission having a transmission housing, e.g., a transmission housing part, the transmission housing has a support structure that includes webs, and the transmission housing has connection surfaces which are connected to webs of the support structure. The support structure together with the connection surfaces is produced in an additive manner, e.g., by 3D printing, the connection surfaces with the webs, for example, forming an oil-tight housing part.

Abstract: In a transmission having a transmission housing, e.g., a transmission housing part, the transmission housing has a support structure that includes webs, and the transmission housing has connection surfaces which are connected to webs of the support structure. The support structure together with the connection surfaces is produced in an additive manner, e.g., by 3D printing, the connection surfaces with the webs, for example, forming an oil-tight housing part.

Abstract: The invention relates to an alkoxysilane polysulfide, of formula (I): (R3O)3-n(R1)nSi—CH2—(R2)CH—Z—Sx—Z—HC(R2)—CH2—Si(R1)n(OR3)3-n??(I), in which: R1, which are identical or different, each represent a monovalent hydrocarbon group having from 1 to 18 carbon atoms; R2, which are identical or different, each represent a monovalent hydrocarbon group having from 1 to 4 carbon atoms; R3, which are identical or different, each represent a monovalent hydrocarbon group having from 1 to 12 carbon atoms, preferably from 1 to 6 carbon atoms; Z, which are identical or different, each represent a divalent hydrocarbon bonding group comprising from 1 to 16 carbon atoms; x is an integral or fractional number greater than or equal to 2; and n is an integer equal to 0, 1 or 2.

Abstract: An elastomeric composition is based on at least a diene elastomer, an inorganic filler as reinforcing filler and a monohydroxysilane polysulfide as coupling agent of formula (I): (HO)(R1)2Si—CH2—(R2)CH—Z—Sx—Z—HC(R2)—CH2—Si(R1)2(OH) (I), in which: each R1 represents a monovalent hydrocarbon group having from 1 to 18 carbon atoms and can be the same or different from one another; each R2 represents a monovalent hydrocarbon group having from 1 to 4 carbon atoms and can be the same or different from one another; each Z represents a divalent hydrocarbon bonding group comprising from 1 to 16 carbon atoms can be the same or different from one another; and x is an integral or fractional number greater than or equal to 2.

Abstract: The present invention provides organofunctional siloxane coupling agents, dipodal siloxanes, siloxane block copolymers and a specific method for preparing these organofunctional siloxanes through an addition reaction of hydrido alkoxysilane and organofunctional disiloxanes to an organocyclosiloxane with a catalyst. The addition reaction of the current invention does not result in polymerization and therefore the novel siloxane couplings agents are free of cyclosiloxanes and polymeric siloxanes. This makes them apt for adhesives, coatings and sealant applications. The present invention also relates to the use of these organofunctional siloxane compounds for the treatment of fillers and surfaces.

Abstract: The invention relates to an alkoxysilane polysulfide, of formula (I): (R3O)3-n(R1)nSi—CH2—(R2)CH—Z—Sx—Z—HC(R2)—CH2—Si(R1)n(OR3)3-n??(I), in which: R1, which are identical or different, each represent a monovalent hydrocarbon group having from 1 to 18 carbon atoms; R2, which are identical or different, each represent a monovalent hydrocarbon group having from 1 to 4 carbon atoms; R3, which are identical or different, each represent a monovalent hydrocarbon group having from 1 to 12 carbon atoms, preferably from 1 to 6 carbon atoms; Z, which are identical or different, each represent a divalent hydrocarbon bonding group comprising from 1 to 16 carbon atoms; x is an integral or fractional number greater than or equal to 2; and n is an integer equal to 0, 1 or 2.

Abstract: An elastomeric composition is based on at least a diene elastomer, an inorganic filler as reinforcing filler and a monohydroxysilane polysulfide as coupling agent of formula (I): (HO)(R1)2Si—CH2—(R2)CH—Z—Sx—Z—HC(R2)—CH2—Si(R1)2(OH) (I), in which: each R1 represents a monovalent hydrocarbon group having from 1 to 18 carbon atoms and can be the same or different from one another; each R2 represents a monovalent hydrocarbon group having from 1 to 4 carbon atoms and can be the same or different from one another; each Z represents a divalent hydrocarbon bonding group comprising from 1 to 16 carbon atoms can be the same or different from one another; and x is an integral or fractional number greater than or equal to 2.