| Patents for D21H 21 - Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper impregnating or coating material, characterised by its function, form or properties (20,755) |
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| 07/26/1977 | US4038451 Compositions comprising polyalkylenepolyamines and a mixture of mono- and diammonium phosphates as fire retardants for cellulosic substrates |
| 07/19/1977 | US4037007 Coloring |
| 07/19/1977 | US4036585 Bleedfast phthalocyanine dyes for paper |
| 07/12/1977 | US4035229 Paper strengthened with glyoxal modified poly(β-alanine) resins |
| 06/21/1977 | US4031121 Fireproofing |
| 05/24/1977 | US4025507 Bis-(triazinylamino) stilbene compounds |
| 05/17/1977 | US4024311 Electroconductive paper coating |
| 05/17/1977 | US4023924 Concentrated aqueous dye compositions containing a low molecular weight amide and their use for dyeing paper |
| 05/10/1977 | US4022757 Dicarbamic acid diesters containing phosphorus |
| 04/19/1977 | US4018647 Process for the impregnation of a wet fiber web with a heat sensitized foamed latex binder |
| 04/12/1977 | US4017486 Cationic alpha-cyano-p-dimethylaminocinnamoyl dyes and paper dyed therewith |
| 03/29/1977 | US4015043 Electrostatic recording material |
| 03/29/1977 | US4014870 Stilbene compounds |
| 03/22/1977 | US4013602 Ultrafine natural calcium carbonates as fillers in varnishes and paints |
| 03/15/1977 | US4012352 Polyvinyl alcohol microgels |
| 03/08/1977 | US4011096 Opacifiers for coatings and fillers for paper |
| 03/01/1977 | US4010067 Process of preventing formation of resinous deposits in the manufacture of paper and the like |
| 02/15/1977 | US4008351 2-(4'-thiazolyl)-benzimidazole, n-(fluorodichloromethylthio)-phthalimide |
| 02/08/1977 | US4007142 Amine resin and process |
| 01/18/1977 | US4003885 Tetrakisazo compounds having a 1-hydroxy-2-(4'-(2"-sulfoanilino)phenylazo)-3,6-disulfo-7-(optionally 2'-substituted phenylazo)-8-aminonaphthalene middle component |
| 01/04/1977 | US4001206 Optionally substituted benzothiazolylphenyl-azo-alkanoylacetamidonaphthalenes |
| 12/28/1976 | US4000343 Substitute textile materials composed of vinyl polymer impregnated creped tissue paper and process of producing same |
| 12/28/1976 | US4000237 Method for producing a soft, absorbent, unitary, laminate-like fibrous web with delaminating strength |
| 12/21/1976 | US3998944 Fungicidal paper |
| 10/12/1976 | US3985500 Black dye formulation |
| 09/21/1976 | US3981820 Silica sol containing fluorescent dye |
| 09/14/1976 | US3980713 Fluorescent brighteners |
| 08/31/1976 | US3978062 Organic pigments |
| 07/27/1976 | US3971813 Fireproofing plastics |
| 07/13/1976 | US3969230 Brominated carbamoyl derivatives useful to impart flame retarding property to combustible substrates |
| 07/06/1976 | US3968315 Quaternary ammonium antistatic agents |
| 07/06/1976 | US3968291 Decorative consolidated laminates and a process for their preparation |
| 06/29/1976 | US3966543 Cellulase enzyme complex |
| 06/15/1976 | US3963847 Thermoplastic resin |
| 06/08/1976 | US3962246 Bromo-propanol derivatives as flame retardants |
| 06/01/1976 | US3960883 Imidazolidine-2,4-dione derivatives and their use as pesticides |
| 05/11/1976 | US3956283 Optical brighteners |
| 05/04/1976 | US3954740 Bis-s-triazinylamino-stilbene-2,2'-disulphonic acids, their manufacture and their use as optical brighteners |
| 05/04/1976 | US3954392 Copper phthalocyanine N-Di-N-butylaminoalkyl sulfonamide, quaternized solutions of the quaternary compound, and paper dyeing therewith |
| 04/27/1976 | US3953638 Multi-ply absorbent wiping product having relatively inextensible center ply bonded to highly extensible outer plies |
| 04/27/1976 | US3953419 Salts of stilbene-azo and stilbene-azoxy dyes and process for their preparation |
| 04/20/1976 | US3952119 Process for coloring absorptive, rough surface paper |
| 03/23/1976 | US3945990 Disazo compounds containing an alkanolamine substituted triazine component |
| 03/02/1976 | US3941778 Fluorescent dyes, optical brightener |
| 03/02/1976 | US3941728 Polyvinyl alcohol-polysaccharide microgels |
| 03/02/1976 | US3941634 Method for the preparation of paper containing plastic particles |
| 03/02/1976 | US3941610 Magnesium hydroxide-containing paper |
| 02/24/1976 | US3940550 Ultrafine natural calcium carbonates as coating pigments in coated papers |
| 02/24/1976 | US3940437 Styryl-diphenyl derivatives |
| 02/03/1976 | US3936556 Marking of articles |
| 01/27/1976 | US3935335 Method for producing support for electrophotographic material and electrostatic recording material |
| 01/27/1976 | US3934974 Solution of ethylauramine hydrochloride in thiodiglycol |
| 01/20/1976 | US3933787 Dyeing and printing paper |
| 01/06/1976 | US3931069 Dispersion for sizing cellulose fibres and use thereof |
| 01/06/1976 | US3931061 Blushed polystyrene pigment |