tions containing flow modifiers prepared by controlled radical po- lymerization.

BLAST MEDIA

U.S. Patent 6,197,951. Mar. 6, 2001 R.P. Lenz, assignor to Archer Daniels Midland Co., Decatur, Ill.

A polymeric blast media compris- ing a starch polymer backbone; and a grafted polymer, which is chemically bonded onto the starch polymer backbone.

SUPEBABBASIVE WHEEL WITH ACTIVE BOND U.S. Patent 6,200,208. Mar. 13, 2001 R.M. Andrews et al., assignors to Norton Co., Worcester, Mass.

An abrasive wheel comprising a straight, grain-reinforced abra- sive disk having a uniform width consisting essentially of abrasive

grains and a complemental amount of a metal bond.

ABRASIVE TOOL U.S. 6,200,360. Mar. 13, 2001 T. Imai et al., assignors to Toyoda Koki KK, Kariya and Toyoda Van Moppes KK, Okazaki, both of Japan

An abrasive tool comprising an electroformed layer having su- perabrasive grains electroplated on a surface of the electroformed layer; and a plurality of dimples arranged on the surface of the electroformed layer.

RECYCLING CONSISTENT PLATING SOLUTION U.S. Patent 6,200,436. Mar. 13, 2001 C.M-C. Woo, assignor to Advanced Micro Devices, Inc., Sunnyvale, Calif:

A system for plating objects com-

prising a container capable of holding plating solution; a con- tainer capable of holding an addi- tive for the plating solution; a plating solution reservoir con- nected to the plating solution con- tainer and additive container for mixing plating solution with the additive; a plating cell connected to the plating solution reservoir and capable of containing an ob- ject to be plated; a filtration unit connected to the plating cell; a return valve connected to the plating cell for selectively con- necting the plating cell to the plating solution reservoir and to the filtration unit; and an additive valve disposed between the addi- tive container and plating solu- tion reservoir for controlling the flow of additive therebetween.

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