Abstract: The present disclosure relates to a curable precursor of a structural adhesive composition, comprising: a thermally curable resin; a thermal curing initiator for the thermally curable resin; a radiation self-polymerizable multi-functional compound comprising a polyether oligomeric backbone and at least one free-radical (co)polymerizable reactive group at each terminal position of the oligomer backbone; and a free-radical polymerization initiator for the radiation self-polymerizable multi-functional compound.

Abstract: The present disclosure relates generally to the field of adhesives, more specifically to the field of structural adhesive films for use in particular for bonding metal parts. More specifically, the present disclosure relates to a multilayer structural adhesive tape. The present disclosure also relates to a process for producing a multilayer structural adhesive tape as well as a method for bonding two parts using the tape. The present disclosure is further directed to the use of a multilayer structural adhesive tape for bonding applications in the industry.

Abstract: The invention relates to an initiator system for curing a dental composition, the initiator system comprising a hydroperoxide component, a transition metal component, a polymerizable thiourea component, the polymerizable thiourea component comprising a thiourea moiety which is attached to a (meth)acrylate moiety through a C3-11 alkyl chain. The invention also relates to a dental composition comprising such an initiator system, and curable components, in particular curable components comprising acidic moieties.

Abstract: The invention relates to a dental cement composition comprising a resin matrix comprising a (meth)acrylate component comprising at least two (meth)acrylate moieties, a polyol spacer group between the at least two (meth)acrylate moieties, the polyols spacer group having a molecular weight Mw of at least 3,000 g/mol, an acidic polymerizable component, preferably an acidic (meth)acrylate component, a non-acidic polymerizable component having a molecular weight Mw below 1,000 g/mol, preferably a non-acidic (meth)acrylate component, filler, an initiator system, optionally additives. The invention also relates to a kit of parts comprising the dental cement composition, a dental crown or a curable dental composition for producing a temporary dental restoration being different from the dental cement composition. The dental cement composition is intended for use in a process of temporarily restoring a dental situation in a mouth of a patient.

Abstract: The invention relates to an initiator system for curing a dental composition, the initiator system comprising a hydroperoxide component, a transition metal component, a polymerizable thiourea component, the polymerizable thiourea component comprising a thiourea moiety which is attached to a (meth)acrylate moiety through a C3-11 alkyl chain. The invention also relates to a dental composition comprising such an initiator system, and curable components, in particular curable components comprising acidic moieties.

Abstract: A chain-extended silicone represented by the formula Each R1 independently represents H or a C1-C15 hydrocarbyl group. Each R2 independently represents H or a C1-C6 alkyl group. Each A independently represents a C1-C18 hydrocarbylene group, optionally substituted with up to 5 heteroatoms selected from the group consisting of O, N and S. Each Z independently represents a leaving group displaceable by a primary or secondary alkylamine. Each m independently represents an integer from 5 to 1000, inclusive. n represents an integer greater than or equal to two. The chain-extended silicone can be functionalized with aziridine groups. Methods of making the foregoing are also disclosed. Curable compositions, including a thermal gap filler, including the chain-extended silicone are also disclosed.

Abstract: According to one aspect, the present disclosure relates to a curable precursor of a structural adhesive composition, comprising: a) a thermally curable resin; b) a thermal curing initiator for the thermally curable resin; c) a radiation self-polymerizable multi-functional compound comprising a polyether oligomeric backbone and at least one free-radical (co)polymerizable reactive group at each terminal position of the oligomer backbone; and d) a free-radical polymerization initiator for the radiation self-polymerizable multi-functional compound; wherein the free-radical polymerization initiator is activated by visible light.

Abstract: The present disclosure relates to a curable precursor of a structural adhesive composition, comprising: a thermally curable resin; a thermal curing initiator for the thermally curable resin; a radiation self-polymerizable multi-functional compound comprising a polyether oligomeric backbone and at least one free-radical (co)polymerizable reactive group at each terminal position of the oligomer backbone; and a free-radical polymerization initiator for the radiation self-polymerizable multi-functional compound.

Abstract: The present disclosure relates to a curable composition comprising: a) a base component comprising a cationically self-curable silicone-based oligomeric compound; b) a curing system for the cationically self-curable silicone-based oligomeric compound; and c) a thermally-conductive filler. According to another aspect, the present disclosure is directed to method of manufacturing a curable composition. In yet another aspect, the disclosure relates to the use of a thermally-conductive curable composition for industrial applications, in particular for thermal management applications in the automotive industry.

Abstract: The present disclosure relates to an acid-curable composition, comprising: a) abase component comprising a cationically self-curable oligomeric compound; and b) a curing system for the cationically self-curable oligomeric compound, which comprises an ionogenic compound comprising an anion and an aminium ion as a cation. According to another aspect, the present disclosure is directed to a curing system suitable for an acid-curable composition comprising a cationically self-curable oligomeric compound. According to still another aspect, the present disclosure relates to a method of manufacturing an acid-curable composition. In yet another aspect, the disclosure relates to the use of an acid-curable composition for industrial applications, in particular for thermal management applications in the automotive industry.

Abstract: The present disclosure relates to an acid-curable composition, comprising: a) a base component comprising a cationically self-curable oligomeric compound; b) a curing system for the cationically self-curable oligomeric compound, which comprises: i. an ionogenic compound comprising an anion and ammonium as a cation; and ii. water. According to another aspect, the present disclosure is directed to a curing system suitable for an acid-curable composition comprising a cationically self-curable oligomeric compound. According to still another aspect, the present disclosure relates to a method of manufacturing an acid-curable composition. In yet another aspect, the disclosure relates to the use of an acid-curable composition for industrial applications, in particular for thermal management applications in the automotive industry.

Abstract: Thermally-conductive gap fillers are described. The gap fillers comprise an aziridino-functional polyether polymer and thermally conductive particles. Initiators suitable for such systems ae also described. Such gap fillers may be used in various applications including the manufacture of battery modules and subunits.

Abstract: Control cure thermally-conductive gap filler materials are described, as are methods of curing. Also described are curing agents and methods of making curing agents.

Abstract: Thermally-conductive gap fillers are described. The gap fillers comprise an aziridino-functional polyether polymer and thermally conductive particles. Initiators suitable for such systems e also described. Such gap fillers may be used in various applications including the manufacture of battery modules and subunits.

Abstract: The invention relates a process for producing isocyanates comprising the steps of a) providing an azolide and optionally a solvent, and b) adding an acid at a temperature below about 40 C. The invention also relates to the isocyanate obtainable by such a process.

Abstract: The invention relates to a radiation curable composition for taking a dental impression comprising (A) a cationically hardenable compound comprising at least one aziridine moiety, and (B) a radiation sensitive starter, the radiation sensitive starter comprising an onium salt, a ferrocenium salt, a combination or mixture thereof.

Abstract: The invention relates to a dental composition comprising a) a compound (A) with the following features: only one backbone unit (U) with 6 to 20 carbon atoms, at least 6 carbon atoms thereof forming an aromatic or an aliphatic cyclic moiety, the remaining carbon atoms either being part of substituents pending from the cyclic moiety or being part of bridging groups to spacer units, wherein one or more of the remaining carbon atoms can be replaced by an oxygen atom, the backbone unit not comprising a bisphenol structure and halogen atoms, one or two unit(s) (S) being connected to the backbone unit (U) via an ether linkage, at least one unit (S) comprising a —CH2-CH2-CH2-CH2-O—CH2-CH(Q)-OG moiety or a —CH2-CH(OG)-CH2-OM moiety or a mixture of these two types of moieties within one unit (S), with G comprising at least one polymerizable moiety and an urethane moiety, the urethane moiety acting as connecting element to unit(s) (S), and M comprising at least one group selected from acroyl, methacroyl, aryl, mixtures

Abstract: The invention relates to a dental composition comprising a) a compound (A) with the following features: only one backbone unit (U) with 6 to 20 carbon atoms, at least 6 carbon atoms thereof forming an aromatic or an aliphatic cyclic moiety, the remaining carbon atoms either being part of substituents pending from the cyclic moiety or being part of bridging groups to spacer units, wherein one or more of the remaining carbon atoms can be replaced by an oxygen atom, the backbone unit not comprising a bisphenol structure and halogen atoms, one or two unit(s) (S) being connected to the backbone unit (U) via an ether linkage, at least one unit (S) comprising a —CH2-CH2-CH2-CH2-O—CH2-CH(Q)-OG moiety or a —CH2-CH(OG)-CH2-OM moiety or a mixture of these two types of moieties within one unit (S), with G comprising at least one polymerizable moiety and an urethane moiety, the urethane moiety acting as connecting element to unit(s) (S), and M comprising at least one group selected from acroyl, methacroyl, aryl, mixtures

Abstract: The invention relates to a radiation curable composition for taking a dental impression comprising (A) a cationically hardenable compound comprising at least one aziridine moiety, and (B) a radiation sensitive starter, the radiation sensitive starter comprising an onium salt, a ferrocenium salt, a combination or mixture thereof.

Abstract: The invention relates a process for producing isocyanates comprising the steps of a) providing an azolide and optionally a solvent, and b) adding an acid at a temperature below about 40 C. The invention also relates to the isocyanate obtainable by such a process.