Polymeric Film for Electroless Deposition U.S. Patent 5,424,009. June 13, 1995 J. Asrar, assignor fo Monsanto Co., St. Louis

A catalytically inert film comprising a hydroxy-functionalized polymer crosslinked with a polyfunctional hydroxy- reactive crosslinking compound selected from the group consisting of block isocy- anate compounds and methylated melamine compounds and metal of Group 8 wherein the film can be selectively acti- vated to catalyze electroless deposition by application of heat.

Spray Gun Tip U.S. Patent 5,425,506. June 20, 1995 D.H. Carey, assignor to Titan Tool Inc., Oakland, NJ.

A conductive plastic tip guard for a hy- draulic spray gun.

Spray Booth Overspray Removal U.S. Patent 5,425,670. June 20, 1995 L.E. Josefsson, assignor to ABB Nakt Inc., Auburn Hills, Mich.

In a paint spray booth including a paint application zone and an overspray air scrubber, the overspray air scrubber having an inlet disposed beneath the application zone for removing paint overspray from spray booth air, an apparatus for reducing debris entering the overspray air scrubber inlet, comprising particle collection means positioned between the application zone and the air scrubber such that particulate matter cannot fall substantially vertically into the overspray air scrubber inlet.

Electroplating Apparatus U.S. Patent 5,425,662. June 20, 1995 6. Hartmann et al, assignors to Hans Hollmuller Maschinenbau GmbH 8 Co., Herrenberg, Germany

An apparatus for the electroplating of thin plastic films.

Electroplating Process U.S. Patent 5,425,873. June 20, 1995 J.J. Bfadon et al., assignors to Shipley Co. LLC, Mar/borough, Mass.

A process for electroplating a copper- clad circuit board substrate containing cop- per-clad regions and nonmetallic regions, comprising providing noble metal sites over the copper-clad regions and nonmetal- lic regions by contact with a solution of a colloidal noble metal; selectively providing a protective coating over the copper-clad regions to reduce the chemical reactivity of the copper cladding without protecting the noble metal sites by contacting with a so- lution containing a copper complexing agent; contacting with. a solution that con- verts the noble metal sites to metal sulfide sites but is prevented from converting the copper-clad regions to a sulfide by the pro- tective coating; removing the protective coating from the copper-clad regions; and electroplating the substrate with metal.

Photoreactive Paint Stripping Compositions U.S. Patent 5,425,893. June 20, 1995 E. Stevens, West Orange, N.J.

A polymer or paint stripping composi- tion for use in removing polymeric coat- ings from flexible and inflexible surfaces consisting essentially of 5-90% by weight of a compound selected from the group consisting of betacarotene, lycopene, and conjugated terpene compounds; 5-90% by weight of benzyl alcohol; O-70% by weight

of a terpene compound other than a conju- gated terpene compound; &20% by weight of a surfactant; (X5% by weight chloro- phyll; and 630% by weight of an organo- clay thixotropic agent.

Application of Multicomponent Coatings U.S. Patent 5,425,966. June 20, 1995 J.C. Larson, assignor to E.I. Du Pant de Nemours and Co., Wilmington, Del.

A method and apparatus for applying a two-package system for a refinish clearcoat or topcoat composition onto the surface of an automotive substrate and curing the ap- plied composition at a maximum tempera- ture of 100°F.

Method for Coating Polypropylene U.S. Patent 5,425,969. June 24 1995 J. Wakabayashi et al, assignors to Toyota Jidosha KK, Toyota and Kansai Paint Co. Ltd., Amagasaki, both of Japan

A method of coating articles made of polypropylene with an electrically conduc- tive primer and electrostatically applied overcoat.

Base Coat/Clear Coat U.S. Patent 5,425,970. June 20, 1995 E. Lahrmann and S. Driieke, assignors to Herberts GmbH, Haftung, Germany

A process for the production of multi- coat coatings by applying a clear lacquer coat onto a substrate provided with a pig- mented base coat and subsequent curing of the clear coat wherein at least one heat- curable clear coat is applied onto the base lacquer coat, which is thermally cured, and then at least one further clear lacquer coat of a radiation-curable coating composition is applied and this coat is cured by UV radiation or electron beam irradiation.

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