Patents for C08L 97 - Compositions of lignin-containing materials (7,383)
01/1992
01/28/1992CA1294862C Method for bonding lignocellulosic material with gaseous esters
01/16/1992DE4022348A1 Wood prods. mfr. esp. chipboard, with improved strength - by addn. of anthraquinone or anthraquinone mono:sulphonate before, during or after gluing with alkaline phenol] formaldehyde] resin
01/08/1992EP0464781A1 Process for the preparation of aqueous polyisocyanate emulsions and emulsions obtained thereby
12/1991
12/24/1991US5075402 Non-toxic, stable lignosulfonate-urea-formaldehyde composition and method of preparation thereof
12/18/1991EP0461463A2 Rubber compositions containing high purity lignin derivatives
12/12/1991WO1991018616A1 Composite molecular system for the contra-escalatory treatment of viral infections
12/12/1991CA2025658A1 Method for making reshapable articles containing lignocellulose utilizing polyisocyanate resins
12/11/1991EP0460858A1 Mould-release compositions
12/11/1991CN1015053B Method of manufacturing bonded particulate article by reacting polyol and heterocyclic compound
12/10/1991US5071682 Dispersing, curing; reduced flammability-formaldehyde vapor emissions
12/05/1991CA2043331A1 Mould-release compositions
12/04/1991EP0458844A1 Process for manufacturing chip boards and chip boards so obtained.
11/1991
11/20/1991CN1056307A Composite of wood and plastics
11/14/1991WO1991017199A1 Environment-friendly, biodegradable moulding compounds and process for producing them
11/07/1991DE4014176A1 Umweltfreundliche, biologisch abbaubare formmassen und verfahren zu ihrer herstellung Environmentally friendly, biodegradable molding compounds and process for their production
11/06/1991EP0454888A1 Non-toxic stable lignosulfonate-urea-formaldehyde composition and method of preparation thereof
10/1991
10/10/1991DE4011159A1 Prepn. of novel aq. melamine-modified amino resins - by heating mixt. of aq. UF precondensate and aq. melamine-UF precondensate, with opt. addn. of urea]
10/01/1991CA1290091C Process for the preparation of urea-formaldehyde resins
10/01/1991CA1290085C Substitute for amino and phenolic resins
09/1991
09/18/1991EP0447093A2 Polyisocyanate composition
09/10/1991CA2037342A1 Process for preparing lignocellulosic bodies
09/04/1991EP0445076A2 Stable dispersions of benzotriazole ultra-violet absorbing agents
09/03/1991US5045593 Adducts of Phosphatides and Anionic or Cationic Addition Polymers, Fluid Loss Control Agents, Well Drilling Fluids
09/03/1991CA1288204C Procedure for manufacturing lignocellulosic material products
08/1991
08/07/1991CN1053628A Prepress sealer for use in hardboard manufacture
07/1991
07/31/1991EP0439314A2 Process for the manufacture of wood composition boards, prepress sealer compositions and use thereof
07/31/1991EP0439271A2 Acetal resin composition
07/18/1991DE4020969C1 Moulding with improved mechanical properties and density - comprises mixt. of wood or cellulose material shavings and potato pulp, waste paper and binder
07/09/1991CA1285746C Organophilic polyphenolic acid adducts
06/1991
06/25/1991US5026808 Aqueous and solvent two phase separation;
06/23/1991CA2026079A1 Method for compression molding articles from lignocellulosic materials
06/18/1991US5025046 Creping adhesive composition
06/05/1991EP0429723A1 Method of producing submicron lignin dispersions
06/04/1991US5021531 Method for recovering and using lignin in adhesive resins by extracting demethylated lignin
05/1991
05/28/1991CA1284404C Method of manufacturing a bonded particulate article by reacting a polyol and a heterocyclic compound
05/28/1991CA1284403C Method of manufacturing a bonded particulate article by reacting a hydrolyzed amylaceous product and a heterocyclic compound
05/21/1991US5017319 Thermosetting waterproof adhesive
05/21/1991US5017312 Increasing electrical conductivity of fibers by condensing water on surface, using electric current to align
05/16/1991WO1991006614A1 Additive for synthetic foam and a pressed timber material of lignocellulose-containing substances
04/1991
04/23/1991US5010156 Reacting phenol and formaldehyde with aqueous alkaline solution of an organosolv lignin
04/18/1991WO1991005020A1 Moulded items of wood or cellulose-containing substances and method for making them
04/16/1991US5008378 Submicron lignin dispersions
04/16/1991US5008365 Heating under acidic conditions to increase the viscosity of the solution; storage stability, reduced gel time; particle board
04/16/1991US5008359 Impregnating paper with uncatalyzed polyisocyanate, curing
04/04/1991CA2012101A1 Antiviral medicinal composition
04/03/1991EP0420118A2 Binder compositions for the manufacture of lignocellulosic composites
04/03/1991CN1050392A Composition of uaste wubber and plastic and wood flour and process for manufacturing same
03/1991
03/26/1991US5002713 Forming particle boards by mixing binders and compression molding
03/26/1991CA2026064A1 Binding compositions for the manufacture of lignocellulosic composites
03/20/1991CN1049964A Wood-pulp safety helmet
03/12/1991US4999390 Polyurethane binder for fiberboard, particle board
03/06/1991EP0415193A2 Finely divided suspension of cellulosic material and process for producing the same
03/05/1991US4997905 Process for the preparation of aminoplastic resins having very low formaldehyde emission rates
02/1991
02/26/1991US4996260 Binder
02/12/1991US4992519 Binder composition with low formaldehyde emission and process for its preparation
01/1991
01/30/1991EP0410782A1 Method of using non-resinous melamine to safen urea-formaldehyde wood composite products and product produced thereby
01/29/1991US4988478 Process for fabricating processed wood material panels
01/29/1991US4988388 Fertilizers, polyisoprene, pesticides, plant growth regulators
01/29/1991CA2021772A1 Method of using non-resinous melamine to safen urea-formaldehyde wood composite products and product produced thereby
01/25/1991WO1991001206A1 Improved sheeting material and method of manufacturing the same
01/25/1991CA2063716A1 Sheeting material and method of manufacturing the same
01/09/1991EP0406328A1 A sound absorbent and heat insulating fiber slab.
12/1990
12/27/1990EP0403827A1 Polyolefines and cellulosic fibres containing moulding compositions, process for manufacturing the same and moulded articles made therefrom
12/19/1990EP0403068A2 Improvements in and/or relating to a process for preparing a hydrolysed lignocellulosic material
12/19/1990EP0402785A1 Method for preparation of a moulded article from compressed particles and phenol resin
12/18/1990US4978697 Condensation polymerization of glucose and galactose, from hydrolysis of whey, with aniline, urea, phenol or toluene; formaldehyde-free for plywood, particle boards
12/16/1990CA2018987A1 Process for the production of a molded body comprising pressed particles and a phenolic resin
12/13/1990WO1990014935A1 Process and device for producing mouldings, in particular for structural elements, insulations and/or packaging, and mouldings so obtained
12/11/1990US4977231 Phenolic resin containing a latent hardening agent comprising the carbamate reaction product of a cyclic
12/07/1990CA2017651A1 Moldable compositions, comprising polyolefins and cellulose fibres, process for preparing the same and objects formed from the same
11/1990
11/28/1990CN1047300A Improvements in and/or relating to process for preparing hydrolysed lignocellulosic material
11/27/1990CA1277054C Aqueous glue dispersions containing polyisocyanates, their preparation and use
11/27/1990CA1276757C Composition for preparing paperboard container for liquids
11/11/1990CA2016445A1 Process for preparing a hydrolysed lignocellulosic material
11/06/1990US4968773 Binders for lignocellulose
11/06/1990US4968772 Binders for wood fibers and particles
11/06/1990US4968771 Wood adhesives modified with surface active agents
10/1990
10/31/1990CN1010201B Woody fiber mat
10/16/1990US4963599 Preparation of woodworking materials
10/09/1990US4961795 Composition and process for bonding lignocellulosic material
10/02/1990US4960740 Adducts of smectite clay with phosphoglycerides, such as soybean lecithin; oil well working fluids
09/1990
09/25/1990CA1274633A1 Composite materials prepared from cork and silicone rubber
09/18/1990US4957999 Process for curing aminoplast resins
09/18/1990US4957557 Submicron lignin dispersions
09/11/1990US4956104 Organophilic polymers
09/04/1990US4954581 Amino resin and a method for its production
09/04/1990CA1273748A1 Composition for bonding solid lignocellulosic materials
08/1990
08/30/1990DE3904642A1 Bindemittel fuer fluessigkeiten Binders such as liquid
08/29/1990CN1009341B Resin and its making method for treatment waste water containing mercury
08/23/1990WO1990009358A1 Process for manufacturing chip boards and chip boards so obtained
08/23/1990DE3904729A1 Verfahren zum herstellen einer spanplatte und nach diesem verfahren hergestellte spanplatte A method of manufacturing a chipboard and prepared by this method chipboard
08/17/1990WO1990009236A1 Binder for liquids
08/08/1990CN1044477A Method for utilizing lignin as reinforcing agent of rubber
08/01/1990EP0379599A1 Cellulosic raw material for use as a filler, filtering and moulding additive, disintegrant and carrier for active compounds
07/1990
07/31/1990US4944823 Composition for bonding solid lignocellulosic materials
07/26/1990WO1990008020A1 Process of producing a wood-plastic agglomerate and use thereof
07/17/1990US4941948 Sawdust bound with wood pulp, pellets made from sawdust
07/10/1990US4940741 Starch stabilizer
07/04/1990EP0376792A2 Process for preparing thermosetting resins resistant to boiling water, and the resins so obtained
06/1990
06/29/1990CA2005854A1 A process for manufacturing thermosetting resins resisting boiling water, and resulting resins
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