|
| US3933577 | 9. Okt. 1973 | 20. Jan. 1976 | | Process of sonically treating municipal waste to produce high quality paper pulp and fertilizer |
| US4416727 | 11. Jan. 1982 | 22. Nov. 1983 | Air Products and Chemicals, Inc. | Process for recovering fiber from wet-strength resin coated paper |
| US4915783 | 27. Dez. 1988 | 10. Apr. 1990 | Monsanto Company | Paper recycling aid |
| US5453159 | 4. Nov. 1993 | 26. Sept. 1995 | International Paper Company | Deinking of recycled pulp |
| US5674358 | 7. Juni 1995 | 7. Okt. 1997 | Hercules Incorporated | Repulping wet strength paper and paperboard with persulfate and a carbonate buffer |
| US5718837 | 17. März 1997 | 17. Febr. 1998 | FMC Corporation | Persulfate mixtures for repulping wet strength paper |
| US5830382 | 7. Juni 1995 | 3. Nov. 1998 | FMC Corporation | Persulfate/metal mixtures for repulping and/or decolorizing paper |
| US5888350 | 14. Okt. 1997 | 30. März 1999 | FMC Corporation | Method for repulping and/or decolorizing broke using persulfate/metal mixtures |
| US5972164 | 17. Nov. 1997 | 26. Okt. 1999 | FMC Corporation | Persulfate mixtures for repulping wet strength paper |
| US5994449 | 23. Jan. 1997 | 30. Nov. 1999 | Hercules Incorporated | Resin compositions for making wet and dry strength paper and their use as creping adhesives |
| US6001218 | 7. Juli 1997 | 14. Dez. 1999 | Kimberly-Clark Worldwide, Inc. | Production of soft paper products from old newspaper |
| US6027610 | 7. Juni 1995 | 22. Febr. 2000 | Kimberly-Clark Corporation | Production of soft paper products from old newspaper |
| US6074527 | 20. Nov. 1997 | 13. Juni 2000 | Kimberly-Clark Worldwide, Inc. | Production of soft paper products from coarse cellulosic fibers |
| US6103861 | 19. Dez. 1997 | 15. Aug. 2000 | Hercules Incorporated | Strength resins for paper and repulpable wet and dry strength paper made therewith |
| US6146497 | 16. Jan. 1998 | 14. Nov. 2000 | Hercules Incorporated | Adhesives and resins, and processes for their production |
| US6245874 | 1. März 2000 | 12. Juni 2001 | Hercules Incorporated | Process for making repulpable wet and dry strength paper |
| US6296736 | 30. Okt. 1997 | 2. Okt. 2001 | Kimberly-Clark Worldwide, Inc. | Process for modifying pulp from recycled newspapers |
| US6355137 | 18. Okt. 2000 | 12. März 2002 | Hercules Incorporated | Repulpable wet strength paper |
| US6387210 | 30. Sept. 1998 | 14. Mai 2002 | Kimberly-Clark Worldwide, Inc. | Method of making sanitary paper product from coarse fibers |