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Erhard Luhmann Patents
Inventor:
Luhmann; Erhard
Address:
Bomlitz, DE
No. of patents:
29
Patents:




Patent Number Title Of Patent Date Issued
6960639 Radiation-curing coating compositions November 1, 2005
Aqueous coating compositions based on polyurethane dispersions which cure under the influence of high-energy radiation, to a process for preparing them and to their use. The coating compositions contain a polyisocyanate, a polyurethane containing free-radically polymerizable groups, and
6710120 Polyurethane dispersions based on fatty acid dialkanolamides March 23, 2004
The invention relates to aqueous polyurethane dispersions based on fatty acid dialkanolamides, to a process for preparing them and to use as coating compositions.
6583215 Aqueous 2-component PU systems June 24, 2003
The invention relates to an aqueous 2-component polyurethane (PU) coating composition comprising a vinyl polymer polyol dispersion, having a hydroxyl number between 10 and 264 mg KOH/g solid resin, an acid value (calculated from the sum of neutralized and non-neutralized acid groups)
6541536 Polyurethane dispersions April 1, 2003
The present invention relates to radiation curable aqueous polyurethane dispersions containing 0.05 to 20 wt. %, based on the weight of the non-aqueous constituents of the aqueous polyurethane dispersions, of 2,2-dimethyl-3-hydroxypropionic acid-(2,2-dimethyl-3-hydroxypropyl ester),
6521702 Aqueous polyurethane emulsions February 18, 2003
The present invention relates to a radiation-curable, aqueous polyurethane emulsion which is prepared by I) reacting A) 40 to 90 wt. % of an isocyanate-reactive component that contains a polyester acrylate containing hydroxyl groups and having an OH content of 40 to 200 mg KOH/g an
6420478 Binder compositions and their use in aqueous coating and adhesive compositions July 16, 2002
The present invention relates to a binder composition containing A) 70 to 99% of a polyurethane dispersion having an OH number of <10 mg KOH/g of solid resin and B) 1 to 30% of a water-dispersible polyisocyanate mixture prepared from an aliphatic, cycloaliphatic, araliphatic and/or
6274653 Bonding agent preparations for paints, the production and use thereof August 14, 2001
A plasticized composition comprising 40 to 82 percent cellulose nitrate, having nitrogen content of less than 12.6% relative to the weight of said cellulose nitrate, and 18 to 60 percent formylated polyurethane, said percent, both occurrences, being relative to the weight of the comp
6197874 Polyurethane-polyacrylate hybrid dispersions containing allophanate groups March 6, 2001
The present invention relates to polyurethane-polyacrylate hybrid dispersions comprisingA) 20 to 99% by weight, based on resin solids, of a polyurethane wherein i) the polyurethane is rendered hydrophilic by ionic and/or nonionic hydrophilic groups and ii) the polyisocyanate component us
5711793 Lacquer vehicles in granular form and free from emulsifying agents, and their preparation January 27, 1998
Lacquer vehicles in granular form, wherein the lacquer vehicles in granular form are composed of 10-82 weight % cellulose ester and 18-90 weight % resin and/or plasticizer as an explosive stabilizer.
5684081 Radiation-curable, aqueous dispersions, production and use thereof November 4, 1997
The present invention relates to polyester acrylate/urethane dispersions based on polyester acrylate prepolymers containing hydroxyl groups, obtainable by polyaddition ofA. 40-90 wt. % of one or more polyester acrylate prepolymers containing hydroxyl groups and having an OH content of 40
5565504 Aqueous reactive microgel dispersions, a method of preparing them and their use October 15, 1996
The present Application relates to an aqueous, reactive microgel dispersion, wherein the microgel particles have an average particle diameter of 0.01 to 1 .mu.m, are insoluble but are capable of swelling in the usual organic solvents, dry without additional film-forming agents to for
5539018 Polymer dispersion July 23, 1996
The present Application relates to a polymer dispersion comprising an aqueous continuous phase and dispersed particles, which consist of a polymerized, water-soluble, urethane-modified allyl ether polyester and polymerized monomers, wherein at least two polymerized monomers A and B t
5510453 Polymerizable, highly crosslinking lacquer binders and their use for the production of lacquers April 23, 1996
The invention relates to novel branched polyesters containing allyl groups, which polyesters are water-emulsifiable, and their use as raw materials for lacquers.
5484826 Free-flowing, quick-dissolving lacquer binder granules January 16, 1996
The invention relates to free-flowing, quick-dissolving lacquer binder granules based on cellulose esters, more particularly cellulose nitrates, and to a process for their production.
5459196 Reactive water-emulsifiable binders and their use for the production of lacquers October 17, 1995
This invention relates to new water-emulsifiable polyester resins, a process for their production and their use as a lacquer row material. These lacquer binders are produced by the reaction of at least one prepolymer A which contains (meth)acryloyl groups and at least one unsaturated
5362313 Coating composition and its use November 8, 1994
This invention relates to a new solid lacquer binder comprising gelatinized nitrocellulose, useful for the preparation of blocking-resistant coating compositions comprising epoxidized natural fatty acids of epoxidized triglycerides.
5352730 Coating system for materials which swell in water October 4, 1994
The present invention relates to a coating compound for sheets, films, or molded products composed of modified or unmodified polysaccharides.
5274067 Binders containing ethylenically unsaturated groups and their use for the production of paints December 28, 1993
Unsaturated polyester polyurethanes based on an allyl-ether-modified polyester A and a polyisocyanate B are suitable for paints having improved hardness and appearance.
5102976 Water-soluble polymerizable polyesters April 7, 1992
Improved .alpha.,.beta.-unsaturated polyesters for paint applications are based on an unsaturated polycarboxylic acid, a polyalkylene glycol having an average molecular weight of 300 to 1,000 and an alkoxylated triol containing no unsaturated groups.
5089586 Water-dispersible allyl urethanes and their use for the production of paints February 18, 1992
Improved water-dispersible allyl urethanes are obtainable by reaction of a polyglycol mixture with a hydroxyallyl compound and an isocyanate containing at least two NCO groups, the allyl urethane being nonionic.
5011874 Cellulose ester/polymer combinations, and their preparation and use April 30, 1991
Improved cellulose ester-polymer combinations contain a cellulose ester A and at least one polymerized monomer B of the following formula ##STR1## wherein the substituents have the meaning given in the description and wherein the particles of the combinations are essentially 0.1 to 1
4970247 Aqueous cellulose ester dispersions and their preparation November 13, 1990
Improved cellulose ester dispersions in the aqueous phase contain dispersed particles which contain cellulose esters, a polymerized monomer A having a polymerizable double bond and a polymerized monomer B having at least two polymerizable double bonds.
4933428 Polymerizable water soluble binders June 12, 1990
Water soluble, polymerizable binders suitable for surface coating contain co-condensed residues of at least two polyalkylene glycols with different molecular weights, an alkoxylated polyol, a polycarboxylic acid and an optionally substituted acrylic acid.
4772329 Aqueous dispersions based on cellulose nitrates, a process for their production and their use as September 20, 1988
Aqueous coating agent dispersions comprisingA. from 3 to 30% by weight of cellulose nitrate,B. from 10 to 50% by weight of at least one liquid prepolymer, which is optionally emulsifiable in water even in the absence of emulsifier, which contains from 0.01 to 1.3 mols/100 g of prepolymer of
4764548 Tile adhesive based on water-dilutable, cellulose-containing pastes August 16, 1988
Adhesive dispersions for tiling, based on(1) 10-95% by weight of a water-dilutable, cellulose nitrate-containing paste with a weight ratio of solids to solvent .gtoreq.1,(2) 0.1-50% by weight of an adhesive resin dispersion or an adhesive resin which can be emulsified in H.sub.2 O,(3) 0-70%
4731121 Viscous cellulose-containing mixture (paste) and use thereof in the production of aqueous coatin March 15, 1988
Cellulose-containing pastes which may be diluted in low-solvent, high-solids aqueous cellulose lacquer dispersions and which contain certain anion-active emulsifiers.
4659387 Nitrocellulose moistened with tertiary alcohols and the use thereof in polyurethane lacquers April 21, 1987
Nitrocellulose moistened with alcohol, particularly for polyurethane lacquers, characterized in that a lower aliphatic tertiary alcohol is used as moistening agent.
4590019 Processes for the production of free-flowing nitrocellulose May 20, 1986
Processes for the production of free-flowing, non-fibrous, alcohol-moistened nitrocellulose, characterized in that the water- or alcohol-moist nitrocellulose is softened with a solvent mixture of a nitrocellulose solvent and a lower aliphatic alcohol and water until the nitrocellulos
4517324 Viscous cellulose-containing mixture (paste) and a process for the production of aqueous coating May 14, 1985
A viscous cellulose substance containing paste which is characterized by containing an alkoxylated plasticizer and a ratio of solid to the organic solvent phase of .gtoreq.1 and which can be used to prepare a lacquer consisting at most of 25% of an organic solvent.


 
 
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