Abstract: Compositions including aliphatic and blocked aromatic polyurethanes are described as extenders, and, particularly as textile auxiliaries, for use with fluorochemical polymers in treating substrates, for example fibrous substrates, such as textile fabrics or yarns.

Abstract: The present invention provides an aqueous composition comprising (i) a fluorochemical compound and (ii) an ester derivative of an alpha-hydroxy acid, the ester derivative having a melting point of not more than 35° C. and a water solubility of not more than 10% by weight at 25° C. The fluorochemical compound is typically dispersed or emulsified in the aqueous composition. The aqueous compositions may provide such advantages as providing good oil- and/or water repellency properties to a substrate upon application at ambient conditions, without the need for a heat treatment. Thus, the aqueous compositions may be used to provide oil- and/or water repellency properties to a substrate such as for example a fibrous substrate, e.g., leather or textile. In particular, repellency properties comparable to those achieved with a heat treatment step may be achieved.

Abstract: The invention provides initiator systems capable of initiating polymerization. More specifically, the invention relates to initiator systems comprising a complexed initiator and a ?-ketone compound decomplexer. The invention further relates to the use of these initiator systems for initiating polymerization, as well as kits, bonding compositions, and polymerized compositions made therewith, and coated substrates and bonded articles prepared therefrom.

Abstract: Initiator systems of the present invention include both a complexed initiator and a carboxylic acid decomplexer. For example, dicarboxylic acid decomplexer, carboxylic acid ester decomplexers, and monocarboxylic acid decomplexers (preferably those comprising an alkyl group having at least nine carbon atoms for low odor compositions) are useful in the present invention.