Patents for D21H 17 - Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution (19,322)
08/1978
08/29/1978US4110155 Method of manufacturing synthetic resin coated papers
08/22/1978US4109053 Cationic dispersant of polyaminopolyamide-, alkylenepolyamine-, or polydiallylamine- epichlorohydrin resins
08/22/1978US4109043 Low pressure melamine resin laminates
08/22/1978CA1037190A1 Epihalohydrin modified diallylamine polymers
08/22/1978CA1037189A1 Stabilized aromatic polyamide compositions and products therefrom
08/22/1978CA1037181A1 Stabilized vinylbenzyltrialkylammonium salt copolymers and process therefor
08/15/1978US4107073 Pulp and papermaking additive
08/01/1978US4104226 Pulp additives in paper manufacture
07/1978
07/25/1978USRE29711 Polyoxyalkylene polyol endcapped with polyisocyanates, polyamine; tough, abrasion resistant
07/25/1978US4103080 High molecular weight water soluble polyacrylamide, storage stability
07/25/1978US4102738 Use of chitosan in corrugating medium
07/18/1978US4101359 Cellulosic wadding layers bonded to paper carrier sheet
07/04/1978US4098997 Process for preparing cross-linked starches
07/04/1978US4098954 Method for eliminating or preventing the brightening effects of anionic optical brighteners
06/1978
06/27/1978US4097427 Cationization of starch utilizing alkali metal hydroxide, cationic water-soluble polymer and oxidant for improved wet end strength
06/20/1978US4096305 Rigid-when-wet paperboard containers and their manufacture
06/13/1978US4094846 Low pressure melamine resins containing elastomers
06/13/1978US4094736 Preparation of cellulosic materials
06/06/1978US4093779 Paper coated with ammonia-containing sizing compositions
06/06/1978US4093605 Auxiliary agent for improving retention, drainage and treatment
06/06/1978US4093542 Flocculating agent comprising water-in-oil emulsion of H-active polymer carrying formaldehyde and amine radicals
06/06/1978US4093510 Xanthated starch amine paper additives
05/1978
05/30/1978US4092457 Method for the production of a synthetic fiber paper having an improved printability for offset printing and the product thereof
05/30/1978US4092266 Process for removing foam from aqueous systems and composition useful therein
05/23/1978US4091167 Method for preparing paper board having improved wet compression strength
05/23/1978US4090992 Water-in-oil emulsion
05/23/1978US4090887 Pigmented microporous silica microspheres produced by a water in oil emulsion
05/09/1978US4088530 Dry strength paper and process therefor
05/02/1978US4087395 Sizing of paper
04/1978
04/25/1978US4085701 Apparatus for wax impregnation
04/11/1978US4084048 Polymers containing dioxythiazole-2-oxide groups
04/11/1978US4083835 Coating processes, compositions and substrates coated with maleic anhydride copolymers having the anhydride moieties reacted with hydrozine or its derivatives
04/11/1978US4083749 Treating an aqueous pulp slurry containing a cationic neutral sizing agent with an oxidizing agent
04/04/1978US4082730 Cationic water soluble resin, acrylamide, basic catalyst, addition polymerization
03/1978
03/28/1978US4081318 Applying foamed aqueous binder to rotating cylindrical transfer surface above web
03/14/1978US4079044 Glyoxal modified poly(β-alanine) strengthening resins for use in paper
03/14/1978US4079043 Glyoxal modified poly(beta-alanine) strengthening resins for use in paper
03/07/1978US4077930 Self-inverting emulsions of dialkyldiallyl ammonium chloride polymers and copolymers
02/1978
02/28/1978US4076896 Paper containing rapid curing melamine-formaldehyde resin composition
02/28/1978US4076662 Modified aminoplast compositions
02/28/1978US4076581 Urea-formaldehyde resin, carboxymethylcellulose salt
02/21/1978US4075177 Thermally hardenable cationic resin from dicarboxylic acid, dialkanolamine and polyamine copolymer condensed with epichlorohydrin
02/21/1978US4075136 Functional ionene compositions and their use
02/21/1978US4075028 Carbamide or thiocarbamide and derivatives
01/1978
01/31/1978US4071468 Anionic surfactants
01/31/1978US4071375 Process for preparing stable aqueous dispersions of rosin-base material
01/24/1978US4070319 Acrylic, methacrylic, or vinyl ester, for non-woven cellulose base substrate
01/24/1978US4070236 Paper manufacture with improved retention agents
01/24/1978US4070152 Textile treating compositions for increasing water and oil repellency of textiles
01/03/1978US4066687 Sequestrants
01/03/1978US4066495 Method of making paper containing cationic starch and an anionic retention aid
01/03/1978US4066494 Nitrogenous condensation products used as retention aids in papermaking
01/03/1978US4066493 Treating cellulosic materials
12/1977
12/27/1977US4065608 Alkylenediamine modified maleic anhydride-olefin copolymer
12/27/1977US4065349 Monoester of a benzene anhydride and a cationic retention aid
12/20/1977US4064213 Creping process using two-position adhesive application
12/20/1977US4063995 Fibrous webs with improved bonder and creping adhesive
12/20/1977US4063976 Calcium sulfate plaster core, reduction of starch migration into paper
11/1977
11/29/1977US4060679 Method of preparing a low molecular weight paper size polymer by continuous polymerization in the absence of initiator
11/29/1977US4060507 Aminopolyamide-acrylamide-glyoxal resin
11/15/1977US4058648 Dense paper
11/08/1977US4057674 Process for preparing dry, laminating impregnated papers or cloths, and process for producing decorative plates using the same
11/08/1977US4057533 Process for preparation of quaternized cationic vinyllactam-acrylamide copolymers
11/01/1977US4056432 Process for making paper products of improved dry strength
11/01/1977US4056431 Resin-containing cellulosic overlays
11/01/1977US4056430 Alkyleneaminophosphonic acid
10/1977
10/18/1977US4054542 Amine-epichlorohydrin polymeric compositions
10/11/1977US4053533 Oxidation of acetylenic impurities with copper manganite catalyst
10/04/1977US4052529 Radiation-curable mercaptoalkyl vinyl polydiorganosiloxanes, method of coating there with and coated article
10/04/1977US4052492 Asphalt, cellulose fiber
10/04/1977US4052259 Manufacture and use of water-soluble auxiliary agents based on polyaminoamides for the production of paper
09/1977
09/27/1977US4051277 Rigid-when-wet paperboard containers and their manufacture
09/27/1977US4051276 Organo-metallic compounds
09/27/1977US4051093 Manufacture of shear-resistant aqueous copolymer emulsions
09/20/1977US4049593 Inorganic substance composition and process for producing same
09/13/1977US4048125 Polyelectrolytes, filter paper
09/06/1977US4046937 Melamine-aldehyde resin and postformable laminate made therefrom
09/06/1977US4046935 Phenolic resins
08/1977
08/23/1977US4043984 Cross-linking agents
08/23/1977US4043954 Compositions and laminates made therefrom
08/23/1977US4043863 Process for sizing cellulose fibers with sulfamoylchlorides
08/16/1977US4042451 Nitro compounds, amines, phosphorus acids
08/09/1977US4040900 Dispersing on web an emulsion of a substituted cyclic dicarboxylic acid anhydride and a polyoxyalkylene alkyl or alkyl-aryl ether
07/1977
07/26/1977US4038233 Aqueous resin composition containing polymers or copolymers of ethylenically unsaturated monomers and a water-soluble cationic polyelectrolyte polymer
07/19/1977US4036821 Manufacture of modified basic polyaminoamide with ammonium compound
07/19/1977US4036682 Paper with synergistic dry strength additives and process therefor
07/12/1977US4035229 Paper strengthened with glyoxal modified poly(β-alanine) resins
07/05/1977US4033913 Cellulose and cellulose products modified by silicic acid
06/1977
06/28/1977US4032392 Coated sheets
06/21/1977US4031138 Stable substituted acrylamides or methacrylamides
06/21/1977US4031064 Aminoplast curing agents
06/21/1977US4030970 Surface sizing of paper with an acrylic copolymer where scum formation is minimized
06/14/1977US4029885 Cationic starch sizing
06/14/1977US4029622 Acrylic
06/14/1977US4029544 Method of making a novel starch derivative and the product produced thereby
06/07/1977US4028173 Methods of making combined titanium dioxide and calcium carbonate and opaque paper containing the resulting combination
06/07/1977US4028172 Process of making paper
05/1977
05/31/1977US4026762 Opacifier
05/31/1977US4026721 Composite silicate pigment
05/24/1977US4025354 Urea containing sizing compositions