Abstract: A binder which is a graft polymer bearing at least two alkoxysilyl groups of the formula —Si(R1)m(OR2)3-m in which R1 and R2 are independently linear or branched alkyl groups containing 1 to 6 carbon atoms and m is an integer of 0 to 2. The graft polymer has graft branches on a graft base. The graft polymer contains at least 0.5% by weight, based on the graft base, of graft branches.

Abstract: Compositions and method for coloring keratin fibers consisting of derivatives of benzo[b]furan-3-one and/or benzo-[b]-thiophen-3-one compounds with special reactive components. These compositions form intensely colored compounds when applied to keratin fibers. The compositions may also be used with substantive dyes and/or oxidation colorants.

Abstract: A process for the production of a polyurethane hot-melt adhesive based on grafted polyester-polyether block copolymers with grafted-on hydroxyl groups and the reaction thereof with a stoichiometric excess of a polyisocyanate and the optional mixing thereof with further pre-polymers based on polyether polyols and polyester polyols is disclosed. By this process, the polyester-polyether block copolymers are firmly incorporated into the polyurethane matrix on curing, so that they are migration-proof. Highly-elastic hot-melt adhesives result, which, with optional foaming, are also suitable for the production of elastic seals.

Abstract: A device for transferring film coating to a substrate with a carrier tape, the device having an applicator foot with at least one recess on the side facing the substrate during application of the coating to substrate.

Abstract: A solventless process for making a polymeric composition having at least two pendant carboxyl groups, which comprises reacting at least one molecule of water with at least one dicarboxylic acid anhydride group of at least one suitable polymer.

Abstract: The present invention provides an apparatus for dispensing a roll of material such as a pressure sensitive adhesive tape. The apparatus includes an enclosable housing having a roll holding piece, a cover piece, and a hinge assembly for joining the roll holding piece and cover piece. The hinge assembly permits opening of the housing while the cover piece and roll holding piece remain connected by the hinge assembly. The apparatus also includes an applicator located proximate to the dispensing end for applying a material to a substrate; a discharge opening for the material, and a cutting member located proximate to the dispensing end for cutting the material. The apparatus of the present invention is particularly useful as a hand-held tape dispenser.

Abstract: Blocked polyurethane prepolymers obtained by reacting at least one polyol, a first polyisocyanate comprising diphenylmethane diisocyanate, a second polyisocyanate having a viscosity at 25° C. of less than about 250 mPa·s, a phenol blocking agent, and an oxime blocking agent, wherein the weight ratio of second polyisocyanate:first polyisocyanate is not more than 0.65:1. The blocked polyurethane prepolymers are especially useful in formulating coating compositions additionally comprising at least one acrylic resin, at least one plasticizer, at least one filler, and optionally other ingredients and additives. A cured coating is obtained by applying a layer of the coating composition to a substrate surface and heating the coating composition layer.

Abstract: An aqueous adhesive composition is provided which comprises a major amount by weight of an aqueous acrylate emulsion having a viscosity of about 500 centipoise (cps) to about 10,000 cps at a temperature ranging from about 15° C. to about 45° C. and a minor amount by weight of a thickener for the adhesive composition which is an aqueous acrylic emulsion containing carboxylate groups and having a viscosity of at least 100,000 cps at a temperature ranging from about 25° C. to about 45° C. composition. The adhesive is particularly useful in the labelling of water-permeable hydrophilic substrates such as paper labels to non-treated plastic surfaces particularly plastics such as polystyrene, polycarbonate, polyvinyl chloride, and polyethylene terephthalate.

Abstract: In the preparation of an improved adhesive composition, an epoxy-based prepolymer is obtained by the reaction of one or more epoxy resins with amino-terminated polyethers and/or carboxyl-terminated butadiene-nitrile rubbers. In one embodiment of the invention, both a solid epoxy resin and a liquid epoxy resin, each of which is a diglycidyl ether of a polyphenol such as bisphenol A, are used. The epoxy-based prepolymer is mixed with an acrylate-terminated urethane resin (preferably, one based on a polyol having a number average molecular weight of at least about 400) and a heat-activated latent curing agent to make an adhesive composition which can be pumpable at room temperature. Curable adhesives capable of expansion to about 100% with high impact resistance after curing may be obtained by inclusion of expanding agents such as expandable microspheres.