Abstract: The present invention relates to a two-part polyurethane-(meth)acrylic hybrid adhesive composition, especially to a two-part polyurethane-(meth)acrylic hybrid adhesive composition containing a special cure system but without typical catalyst for polyurethane formation.

Abstract: The present invention relates to a radiation curable (meth)acrylic adhesive composition comprising, consisting essentially of: i) a (meth)acrylated polydiene resin; ii) a multi-functional (meth)acrylic monomer component; iii) a mono-functional (meth)acrylic monomer component; and iv) a photo initiator component.

Abstract: The present invention relates to a polyurethane laminating adhesives, methods for producing a multilayer laminate by laminating at least two films with a polyurethane laminating adhesive, and multilayer laminates obtainable by these methods wherein the polyurethane laminating adhesive comprises an NCO-terminated polyurethane prepolymer obtainable by reacting a polyol mixture comprising: 0.1 to 20.0 wt % relative to the total weight of the polyol mixture of at least one polybutadiene polyol; and 5.0 to 99.9 wt % relative to the total weight of the polyol mixture of at least one polyether polyol, wherein the at least one polyether polyol comprises at least one polyether polyol with a number average molecular weight Mn in the range of >1000 g/mol to 10000 g/mol; with at least one polyisocyanate, wherein the at least one polyisocyanate is used in an amount such that the isocyanate groups are present in molar excess relative to the hydroxyl groups of the polyol mixture.

Abstract: The present disclosure relates to the field of preparing an inorganic nanometer material and application thereof, and specifically relates to a film-forming silica sol, a method of preparing the silica sol, and usage thereof. The present disclosure provides a film-forming silica sol comprising, by weight percentage, constituents of: silica sol: 66-91%; modifying agent: 0.1-1.8%; film-forming auxiliary: 7.2-33.9%. The present disclosure further provides a method of preparing a film-forming silica sol and an application thereof. With the film-forming silica sol, a method of preparing the silica sol, and usage thereof according to the present disclosure, the prepared film-forming silica sol has a good appearance transparency and stability, and when applied to paint as a film-forming coating, it has a good glossiness, a high hardness, and a strong adhesive force; therefore, it has a high practical value in the paint field.

Abstract: A process for producing a ?-amino ester functionalized oligomer or polymer, said process comprising the steps of: providing a polyol represented by the formula A-(OH)q wherein q?2 and A denotes an oligomeric or polymeric backbone, and converting said polyol into its corresponding acetoacetate functionalized compound by transacetoacetylation with an acetoacetate reagent; and, subjecting said acetoacetate functionalized compound to either indirect amination or direct reductive amination. Said indirect amination may be characterized by comprising the steps of: converting the acetoacetate functionalized compound into its corresponding enamine by reaction with at least one amine bearing at least a primary or secondary amine group; and, reducing the enamine product of the previous step to form the corresponding ?-amino ester functionalized compound.

Abstract: The present invention relates to a method for synthesizing cyclocarbonates by reacting an epoxy compound and carbon dioxide at atmospheric pressure and elevated temperature in the presence of a heterogeneous catalyst system comprising an alkali metal halide and silica as well as the use of said catalyst system for the synthesis of cyclocarbonates.

Abstract: The present invention relates to a method for synthesizing cyclocarbonates by reacting an epoxy compound and carbon dioxide at atmospheric pressure and elevated temperature in the presence of a heterogeneous catalyst system comprising an alkali metal halide and silica as well as the use of said catalyst system for the synthesis of cyclocarbonates.

Abstract: The present invention relates to ultralow monomer PU prepolymers containing free NCO groups obtainable from polyols, diisocyanates and NCO-reactive compounds, obtainable by reacting at least one polyol with at least one polyisocyanate, wherein the at least one polyisocyanate is used in molar excess relative to the hydroxyl groups of the at least one polyol to obtain a polyurethane prepolymer containing free isocyanate groups; and adding at least one compound having at least one H-acidic functional group to the polyurethane prepolymer containing free isocyanate groups in an amount such that the molar ratio of the free isocyanate groups to H-acidic functional groups (NCO:XH ratio) is 2 to 15, preferably 2.5 to 10, more preferably 3 to 8. Also encompassed are methods for its production, laminating adhesives containing said prepolymer, methods of bonding substrates and the use of the described adhesives for laminating two or more films.

Abstract: The present invention relates to a polyurethane laminating adhesives, methods for producing a multilayer laminate by laminating at least two films with a polyurethane laminating adhesive, and multilayer laminates obtainable by these methods wherein the polyurethane laminating adhesive comprises an NCO-terminated polyurethane prepolymer obtainable by reacting a polyol mixture comprising: 0.1 to 20.0 wt % relative to the total weight of the polyol mixture of at least one polybutadiene polyol; and 5.0 to 99.9 wt % relative to the total weight of the polyol mixture of at least one polyether polyol, wherein the at least one polyether polyol comprises at least one polyether polyol with a number average molecular weight Mn in the range of >1000 g/mol to 10000 g/mol; with at least one polyisocyanate, wherein the at least one polyisocyanate is used in an amount such that the isocyanate groups are present in molar excess relative to the hydroxyl groups of the polyol mixture.

Abstract: The present disclosure relates to the field of preparing an inorganic nanometer material and application thereof, and specifically relates to a film-forming silica sol, a method of preparing the silica sol, and usage thereof. The present disclosure provides a film-forming silica sol comprising, by weight percentage, constituents of: silica sol: 66-91%; modifying agent: 0.1-1.8%; film-forming auxiliary: 7.2-33.9%. The present disclosure further provides a method of preparing a film-forming silica sol and an application thereof. With the film-forming silica sol, a method of preparing the silica sol, and usage thereof according to the present disclosure, the prepared film-forming silica sol has a good appearance transparency and stability, and when applied to paint as a film-forming coating, it has a good glossiness, a high hardness, and a strong adhesive force; therefore, it has a high practical value in the paint field.

Abstract: An internal mold release agent (IMRA) which effectively releases a cured polyurethane (PU) material from a metal, in particular steel, mold. The IMRA is a surface active agent containing phosphorus or a combination (blend or reaction product) of the agent with other chemicals. In one embodiment the agent is a phosphate ester. In one embodiment the agent is polyoxyethylene alkyl phosphate ester. A polyurethane formulation comprising the IMRA has high formulation stability, clean release, low release strength, and high product transparency.

Abstract: Provided are two part hybrid adhesives that comprise an organoborane amine complex, a polyamine, a component polymerizable by free radical polymerization, and a polyisocyanate component. An isocyanate terminated prepolymer can advantageously be used in the practice of the invention. The adhesive is particularly well suited for low surface energy plastic bonding.

Abstract: Moisture curable hot melt adhesive compositions that contain functionally modified polyolefins and have improved green strength before set are prepared without using added crystalline polyester polyol.

Abstract: Provided are two part hybrid adhesives that comprise an organoborane amine complex, a polyamine, a component polymerizable by free radical polymerization, and a polyisocyanate component. An isocyanate terminated prepolymer can advantageously be used in the practice of the invention. The adhesive is particularly well suited for low surface energy plastic bonding.

Abstract: An internal mold release agent (IMRA) which effectively releases a cured polyurethane (PU) material from a metal, in particular steel, mold. The IMRA is a surface active agent containing phosphorus or a combination (blend or reaction product) of the agent with other chemicals. In one embodiment the agent is a phosphate ester. In one embodiment the agent is polyoxyethylene alkyl phosphate ester. A polyurethane formulation comprising the IMRA has high formulation stability, clean release, low release strength, and high product transparency.

Abstract: Provided are two part hybrid adhesives that comprise an organoborane amine complex, a polyamine, a component polymerizable by free radical polymerization, and a polyisocyanate component. An isocyanate terminated prepolymer can advantageously be used in the practice of the invention. The adhesive is particularly well suited for low surface energy plastic bonding.

Abstract: Moisture curable reactive hot melt adhesive compositions are prepared using a novel two-step polymerization process. Resulting adhesives have improved green strength.

Abstract: A polyurethane hot melt adhesive composition comprising an isocyanate, one or more polyols, one or more bituminous materials and optionally one or more thermoplastic materials. Another embodiment is directed to a method for bonding materials together which comprises applying the reactive hot melt adhesive composition in a liquid form to a first substrate, bringing a second substrate in contact with the composition applied to the first substrate, and subjecting the applied composition to conditions which will allow the composition to cool and cure to an irreversible solid form, said conditions comprising moisture. Still another aspect is directed to an article of manufacture comprising the adhesive.

Abstract: Provided are two part hybrid adhesives that comprise an organoborane amine complex, a polyamine, a component polymerizable by free radical polymerization, and a polyisocyanate component. An isocyanate terminated prepolymer can advantageously be used in the practice of the invention. The adhesive is particularly well suited for low surface energy plastic bonding.

Abstract: Moisture curable hot melt adhesive compositions that contain functionally modified polyolefins and have improved green strength before set are prepared without using added crystalline polyester polyol.