| Patents for D21H 17 - Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution (19,322) |
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| 10/25/1988 | US4779631 Wrappers for specialty smoking devices |
| 10/18/1988 | US4778813 Microbiocides, corrosion resistance, delamination, flocculants, softeners, and demulsifiers |
| 10/18/1988 | US4778711 Paper for receiving toner images in electrophotography |
| 10/18/1988 | US4778696 Method of manufacturing impregnated corrugated sheets for packing boxes |
| 10/12/1988 | EP0286318A2 Maufacture of wet laid nonwoven webs |
| 10/12/1988 | EP0286256A2 Smoking material and process for making same |
| 10/12/1988 | EP0285734A2 Process for impregnating hydrophilic paper sheets which can swell |
| 10/11/1988 | US4777224 Anionic polyurethanes |
| 10/11/1988 | US4776970 Acyclic ester |
| 10/05/1988 | EP0285487A1 Paper making processes |
| 10/05/1988 | EP0285486A1 Process for producing packaging paper and board |
| 10/05/1988 | EP0285134A2 Hydridoaminosilane treatment for rendering surfaces water-repellent |
| 10/04/1988 | US4775744 Cationic and anionic lignin amines |
| 10/04/1988 | US4775586 Multilayer-flocculation, mixing polymers and silicate |
| 10/04/1988 | US4775580 Porous random fiber composites and a method for preparing same |
| 10/04/1988 | CA1242631A1 Decorative laminates and method of producing same |
| 09/28/1988 | EP0284169A1 Reinforced polymer sheet |
| 09/28/1988 | EP0283951A1 Polysaccharide derivatives containing aldehyde groups, their preparation from the corresponding acetals and use in paper |
| 09/28/1988 | EP0283608A1 Laminated products from inorganic papers |
| 09/27/1988 | US4774285 Preparation of water-soluble copolymers containing vinylamine units, and their use as wet strength agents and dry strength agents for paper |
| 09/22/1988 | WO1988007104A1 Procedure for manufacturing lignocellulosic material products |
| 09/21/1988 | EP0282862A2 Nitrogen containing, water soluble compounds |
| 09/21/1988 | EP0282761A1 Process for producing paper and board having a high dry strength |
| 09/21/1988 | EP0282571A1 Processes for the production of antistatic or static dissipative paper, and the paper products thus produced, and apparatus utilized. |
| 09/20/1988 | US4772493 Process for impregnating |
| 09/20/1988 | US4772359 Poly-n-vinylamide as drainage aid |
| 09/20/1988 | US4772332 Pigments, polyacrylate, lignosulfonate, naphthalenesulfonate-formaldehyde complex |
| 09/20/1988 | CA1242054A1 Process and compositions for sizing paper |
| 09/14/1988 | EP0282415A1 Process for producing paper |
| 09/14/1988 | EP0282081A1 Method for increasing paper strength |
| 09/14/1988 | EP0281967A1 Smoking article with double wrapper |
| 09/14/1988 | EP0281655A1 Aldehyde-containing heteropolysaccharides, a process for their preparation and the use thereof |
| 09/14/1988 | EP0172139B1 Process for paper sizing with anionic hydrophobic sizing agents and cationic retention agents |
| 09/13/1988 | US4771097 Alkali metal, amine or ammonium salt of maleic anhydride-diisobutylene copolymer optionally containing a vinyl monomer and bis-esterified with a monoalcohol |
| 09/13/1988 | US4770930 Multilayered thermal insulation formed of zirconia bonded layers of zirconia fibers and metal oxide fibers and method for making same |
| 09/13/1988 | US4770743 Engine size for paper, based on fatty alkyl diketenes and cationic polyacrylamides |
| 09/13/1988 | CA1241969A1 Perfluoralkylalkyl vinyl sulfoxides and sulfones |
| 09/07/1988 | WO1988006659A1 A process for the production of paper |
| 09/07/1988 | WO1988006656A1 Method for dewatering a wet paper web and introducing functional additives |
| 09/07/1988 | EP0281475A2 Reinforced thermoplastic material and process for its manufacture |
| 09/07/1988 | EP0281273A1 Cellulosic pulp |
| 09/06/1988 | US4769274 Relatively inexpensive thermoformable mat of reduced density and rigid laminate which incorporates the same |
| 09/06/1988 | US4769175 Sheet-like, oxygen-scavenging agent |
| 09/06/1988 | US4769109 Relatively inexpensive thermoformable mat and rigid laminate formed therefrom |
| 09/06/1988 | CA1241653A1 Polymeric quaternary ammonium compounds, their preparation and use |
| 09/06/1988 | CA1241637A1 Surfactants |
| 09/06/1988 | CA1241570A1 High-density absorbent structures |
| 08/31/1988 | EP0280445A1 Pitch control aid |
| 08/31/1988 | EP0280115A1 Oil proof composition for paper |
| 08/31/1988 | EP0280043A1 Paper-sizing agents |
| 08/30/1988 | US4767466 Slurrying kaolin clay and cationi polyelectrolyte; thickening, flocculation, bleaching |
| 08/30/1988 | US4767464 Carbonate-containing mineral fillers, pigments and similar materials |
| 08/25/1988 | WO1988006104A1 Transfer coating for decorative laminates |
| 08/25/1988 | DE3804088A1 Baumaterial auf der basis eines wasserbestaendigen silikats und verfahren zu seiner herstellung Building material based on a silicate and wasserbestaendigen process for its preparation |
| 08/24/1988 | EP0279313A1 Process for preparing a pigmentary agent suited for use in the paper-making industry, said agent improving the printability of paper or board, the agent and its use |
| 08/23/1988 | US4766030 Oxonated poly(alkylene oxide) surface treatment agents |
| 08/23/1988 | US4765867 Papermaking |
| 08/23/1988 | US4765858 Process of applying a reacting transfer coating for decorating laminates |
| 08/23/1988 | US4765780 Apparatus for and method of providing a multiplicity of streams of air-entrained fibers |
| 08/17/1988 | EP0278602A1 Aqueous suspensions of calcium-containing fillers |
| 08/17/1988 | EP0278336A2 Agents for paper production |
| 08/16/1988 | US4764418 Tissue paper with carboxylic acid; softness, multilayer |
| 08/10/1988 | EP0277728A2 Drainage and retention aids for newsprint furnishes |
| 08/10/1988 | EP0277633A2 Paper-making method and a starch ether additive therefor |
| 08/03/1988 | EP0276770A2 Paper-sizing agent based on particulate aqueous dispersions |
| 08/02/1988 | CA1239783A1 Smoking articles |
| 07/28/1988 | WO1988005423A1 Tabular acicular gypsum and method of filling paper |
| 07/27/1988 | EP0276200A1 Paper production |
| 07/27/1988 | EP0275851A1 Aqueous dispersions, a process for their preparation and their use as sizing agents |
| 07/27/1988 | EP0275382A1 Method for preparing composite felt preforms |
| 07/27/1988 | EP0275256A1 Method of processing waste paper. |
| 07/26/1988 | US4759856 Flocculation processes |
| 07/26/1988 | CA1239731A1 Polyaldehyde/polyacetal compositions |
| 07/26/1988 | CA1239507A1 Production of paper, cardboard and board having high dry strength, wet strength and alkali resistance |
| 07/19/1988 | CA1239256A1 Retention aids |
| 07/19/1988 | CA1239255A1 Process for reducing discoloration and/or tackiness in processing waste paper fibers |
| 07/14/1988 | WO1988005100A1 Method for manufacture of lightweight frothed mineral wool panel |
| 07/14/1988 | WO1988005098A1 Low density frothed mineral wool panel and method |
| 07/14/1988 | WO1988005097A1 Method for manufacturing a mineral panel |
| 07/14/1988 | WO1988005096A1 Low density mineral wool panel and method |
| 07/13/1988 | EP0274430A2 Method of preparing structured kaolin pigments |
| 07/13/1988 | EP0274429A2 Method of kaolin aggregation using combination of organic and inorganic bases |
| 07/12/1988 | US4756801 Paper-making method and a combination of ingredients to be used in it |
| 07/05/1988 | US4755259 Process for papermaking |
| 06/30/1988 | WO1988004704A1 Hydrophilic cellulose product and method of its manufacture |
| 06/29/1988 | CN87103754A Carbonate-containing mineral fillers, pigments and similar materials |
| 06/28/1988 | US4753710 Using cationic polymer flocculant or retention aid |
| 06/28/1988 | CA1238634A1 Process for the production of cationic starch |
| 06/23/1988 | DE3741583A1 Method for destroying microbes in process water of paper-mills |
| 06/22/1988 | EP0137829B1 Production of laminates |
| 06/21/1988 | US4752341 Pigment system for paper |
| 06/21/1988 | CA1238324A1 Process for sizing paper in anionic hydrophobic sizing agents and cationic retention aids |
| 06/15/1988 | EP0270650A1 Synthetic alkali metal alumino-silicates, methods and uses, compositions and their methods of preparation. |
| 06/14/1988 | US4750974 Coacervative binder consisting of cationic potato starch, high molecular weight anionic polymer, and dispersed silica |
| 06/14/1988 | CA1238132A1 Aqueous polymer dispersions |
| 06/14/1988 | CA1237960A1 Stable substituted succinic anhydride/emulsifier composition and methods for its use |
| 06/08/1988 | EP0270103A1 A method and apparatus for manufacturing filler-containing paper |
| 06/08/1988 | CN87107768A Aqueous dispersion of cationic polymer |
| 06/07/1988 | US4749800 Polysaccharide esters containing acetal and aldehyde groups |
| 06/07/1988 | US4749444 Draining stock; mixing bentonite, cationic polyelectrolyte, acrylamide or methacrylamide polymer |