Inventor

METZGAR RICHARD E

US2 patents

Patents

2 patents

US6258279B1Jul 10, 2001

Hydrophilic cationic dispersion polymer for paper mill color removal

NALCO CHEMICAL CO20 citations88

US5961838AOct 5, 1999

Amphoteric polymer/polyamine combinations for color removal and clarification of paper mill waste water

NALCO CHEMICAL CO10 citations71