Adhesion-promoting compositions containing organic titanates and/or organic zirconates and the use of the adhesion-promoting compositions to provide adhesion-promoting layers to enhance adhesion between metal substrates and an overlying free radical-polymerized sealant are disclosed.

Adhesion-promoting compositions containing organic titanates and/or organic zirconates and the use of the adhesion-promoting compositions to provide adhesion-promoting layers to enhance adhesion between metal substrates and an overlying free radical-polymerized sealant are disclosed.

The present invention provides a production method for obtaining, by a simple method, a polyalkylene oxide whose molecular weight and polydispersity are controlled in the desired range.

The method for producing a polyalkylene oxide of the present disclosure comprises step 1 of performing a polymerization reaction of an alkylene oxide in the presence or absence of a chain transfer agent to obtain a high-molecular-weight polyalkylene oxide; and step 2 of irradiating the high-molecular-weight polyalkylene oxide obtained in step 1 with radiation to obtain a polyalkylene oxide; wherein the amount of the chain transfer agent when used is less than 300 mass ppm relative to the alkylene oxide, and the high-molecular-weight polyalkylene oxide has a viscosity in a 1 mass % aqueous solution of 7500 mPa.Math.s or more.

The present invention provides a production method for obtaining, by a simple method, a polyalkylene oxide whose molecular weight and polydispersity are controlled in the desired range.

The method for producing a polyalkylene oxide of the present disclosure comprises step 1 of performing a polymerization reaction of an alkylene oxide in the presence or absence of a chain transfer agent to obtain a high-molecular-weight polyalkylene oxide; and step 2 of irradiating the high-molecular-weight polyalkylene oxide obtained in step 1 with radiation to obtain a polyalkylene oxide; wherein the amount of the chain transfer agent when used is less than 300 mass ppm relative to the alkylene oxide, and the high-molecular-weight polyalkylene oxide has a viscosity in a 1 mass % aqueous solution of 7500 mPa.Math.s or more.

A method of preparing an alkoxy-functional organosiloxane compound is provided. The method comprises reacting (A) an initial organosiloxane compound and (B) an alcohol component in the presence of (C) a catalyst and, optionally, (D) an organosilicon compound, thereby preparing the alkoxy-functional organosiloxane compound. The initial organosiloxane compound (A) comprises at least one silanol group. The alcohol component (B) comprises an organic alcohol. The catalyst (C) comprises an ammonium carboxylate compound. The organosilicon compound (D), when utilized, comprises at least one alkoxysilyl group. A reaction product comprising an alkoxy-functional organosiloxane compound prepared in accordance with the method, and compositions comprising the reaction product and the alkoxy-functional organosiloxane compound are also provided. The alkoxy-functional organosiloxane compound, and the reaction product and composition comprising the same, are prepared in increased purity low cyclic content from depolymerization.

A method of preparing an alkoxy-functional organosiloxane compound is provided. The method comprises reacting (A) an initial organosiloxane compound and (B) an alcohol component in the presence of (C) a catalyst and, optionally, (D) an organosilicon compound, thereby preparing the alkoxy-functional organosiloxane compound. The initial organosiloxane compound (A) comprises at least one silanol group. The alcohol component (B) comprises an organic alcohol. The catalyst (C) comprises an ammonium carboxylate compound. The organosilicon compound (D), when utilized, comprises at least one alkoxysilyl group. A reaction product comprising an alkoxy-functional organosiloxane compound prepared in accordance with the method, and compositions comprising the reaction product and the alkoxy-functional organosiloxane compound are also provided. The alkoxy-functional organosiloxane compound, and the reaction product and composition comprising the same, are prepared in increased purity low cyclic content from depolymerization.

Pavement aging can be reduced by applying to an asphalt-containing pavement a topcoat layer or a surface treatment containing asphalt binder with sterols.

Pavement aging can be reduced by applying to an asphalt-containing pavement a topcoat layer or a surface treatment containing asphalt binder with sterols.

Provided is an aqueous coating composition comprising a binder and a coalescent which is based on a secondary alcohol alkoxylate or a tertiary alcohol alkoxylate.

Disclosed herein is a thermoplastic molding composition, including: a) 30 to 99.85 wt % of at least one thermoplastic polyamide as component A; b) 0.1 to 10 wt % of at least one polyhydric alcohol having more than 6 hydroxyl groups, and having a number average molecular weight M.sub.n of more than 2000 g/mol as component B; c) 0.05 to 3 wt % of at least one sterically hindered phenol antioxidant as component C; d) 0 to 3 wt % of at least one polycarboxylic compound having more than 3 carboxylic acid groups and/or carboxylate groups, and having a number average molecular weight M.sub.n of more than 300 g/mol as component D; e) 0 to 50 wt % of at least one fibrous and/or particulate filler as component E; and f) 0 to 25 wt % of further additives as component F; where the total of wt % of components A to F is 100 wt %.