nar substrate receiving surface thereon; the target including a convex sputtering surface wherein a portion of sputtered material from the target leaves the target at an askew angle to the substrate receiving surface and is directed in a trajectory, which is substantially perpendic­ular to the substrate receiving surface.

AllIIASIVI AIITICLIS U.S. Patent 5,919,549. July 6, 1999 L.X. Van et al., assignors to 3M Co., St. Paul, Minn.

An abrasive article comprising a backing having a first and second major surface; a first resin layer

comprising a first hardened resin having a dry coating weight of 400 g/m2 or greater extending over the first major surface of the backing; abrasive particles adhered within the first resin layer; a second resin layer applied over the first resin layer having a dry coating weight of 400 g/m2 or greater; and a lofty, three-dimensional, non­woven web of fibers bonded to one another at their mutual contact points and extending through the first and second hardened resin layers, wherein the first and sec­ond resin layers substantially penetrate and fill the nonwoven web of fibers that extend through the resin layers.

...... COAn .. COIIPOSITION U.S. Patent 5,919,568. July 6, 1999 E. WoLf, assignor to Huels AG, Marl, Germany

A powder coating for use in coat­ing heat-resistant substrates.

uvau ............. POWDIR COAnHS U.S. Patent 5,919,845. JuLy 6, 1999 R. Foukes et al., assignors to BASF Coatings AG, Muenster-Hiltrup, Germany

A powder coating having im­proved surface properties, com­prising 0.05 to 5% by weight of a levelling agent consisting of ali­phatic polyvinyl ethers.

,... Since 1923 MFG. CO. • Stannic Chloride (Tin Tetrachloride)

(Tin IV Chloride), (Tin Chloride)

88

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(Tin II Chloride) • Stannous Chloride Solution • Stannous Chloride Dihydrate • Stannous Oxide • Stannous Sulfate . • Stannous Sulfate Solution • Sodium Stannate • Potassium Stannate • Potassium Stannate Solution Mason Corporation chemicals' unique features Include specialized service. the highest quality and purity in tin metals. and ftexlbllty In packag­ing of the chemicals to meet the customers needs.

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