| Patent Number |
Title Of Patent |
Date Issued |
| 6916897 |
POLYADDITION PRODUCTS CONTAINING HYDROXYL AND URETDIONE GROUPS, PROCESS FOR THEIR PREPARATION, T |
July 12, 2005 |
| Polyaddition products containing hydroxyl and uretdione groups, a process for their preparation, their use for the production of highly reactive polyurethane (PUR) powder coatings which are free from elimination products and which crosslink to give light-stable and weather-stable coa |
| 6908980 |
POLYADDITION PRODUCTS CONTAINING HYDROXYL AND URETDIONE GROUPS, PROCESS FOR THEIR PREPARATION, T |
June 21, 2005 |
| Polyaddition products containing hydroxyl and uretdione groups, a process for their preparation, their use for the production of highly reactive polyurethane (PUR) powder coatings which are free from elimination products and which crosslink to give light-stable and weather-stable coa |
| 6613861 |
POLYADDITION PRODUCTS CONTAINING HYDROXYL AND URETDIONE GROUPS, PROCESS FOR THEIR PREPARATION, T |
September 2, 2003 |
| Polyaddition products containing hydroxyl and uretdione groups, a process for their preparation, their use for the production of highly reactive polyurethane (PUR) powder coatings which are free from elimination products and which crosslink to give light-stable and weather-stable coa |
| 6479613 |
Process for the preparation of polyaddition products containing uretdione groups, and their use |
November 12, 2002 |
| The invention relates to a process for the preparation of polyaddition products containing uretdione groups, prepared from a polyisocyanate-uretdione having at least two free isocyanate groups, diols and, if desired, monoalcohols or monoamines, in which the polyaddition products cont |
| 6437074 |
Blocked polyisocyanates, a process for their preparation, and their use |
August 20, 2002 |
| Partially or totally blocked polyisocyanates comprising physical mixtures of individual a) urethane-functional and/or b) biuret-functional and/or c) isocyanurate-functionalaliphatic and (cyclo)aliphatic and/or cycloaliphatic diisocyanate whose isocyanate groups are blocked in such a |
| 6204351 |
Blocked polyisocyanates with built-in hals stabilizer |
March 20, 2001 |
| Partially or completely blocked polyisocyanates having an built-in HALS stabilizer. |
| 6166164 |
Blocked polyisocyanates, a process for their preparation, and their use |
December 26, 2000 |
| Partially or totally blocked polyisocyanates comprising physical mixtures of individuala) urethane-functional and/orb) biuret-functional and/orc) isocyanurate-functionalaliphatic and (cyclo)aliphatic and/or cycloaliphatic diisocyanate whose isocyanate groups are blocked in such a way that th |
| 6051675 |
Blocked polyisocyanates, a process for their preparation, and their use |
April 18, 2000 |
| Partially or totally blocked polyisocyanates comprising physical mixtures of individuala) urethane-functional and/orb) biuret-functional and/orc) isocyanurate-functionalaliphatic and (cyclo)aliphatic and/or cycloaliphatic diisocyanate whose isocyanate groups are blocked in such a way that th |
| 5955558 |
Blocked polyisocyanates with built-in HALS stabilizer |
September 21, 1999 |
| Partially or completely blocked polyisocyanates having a built-in HALS stabilizer. |
| 5945531 |
Polyisocyanates containing uretdione groups |
August 31, 1999 |
| A polyisocyanate composition, comprising:A) from 55 to 87% by weight of a polyisocyanate which contains uretdione groups;B) from 10 to 30% by weight of blocking agent,C) from 3 to 30% by weight of polyol having more than two hydroxyl groups and/or chain extender having more than two hydroxyl |
| 5939199 |
Process for the preparation of heat curable weather-resistant polyurethane powder coatings, and |
August 17, 1999 |
| Polyurethane powder coating compositions of high reactivity, containinga) an isocyanate component which is partially or totally blocked with 1,2,4-triazole,b) hydroxyl-containing polymers, andc) if desired, customary auxiliaries and additives, where the isocyanate component is a physical mix |
| 5859164 |
Uretdione-functional polyaddition compounds, a process for their preparation, and their use |
January 12, 1999 |
| Uretdione-functional polyaddition compounds of the formula: ##STR1## where: ##STR2## R.sup.1 is R or linear, branched or cyclic alkylene radicals of 2-16 carbon atoms,R.sup.2 and R.sup.3 are identical or different hydrocarbon radicals of 1-14 carbon atoms,R.sup.4 is R.sup.2 o |
| 5852154 |
Cold-curing, low-solvent or solvent-free 2-component polyurethane/polyurea compositions |
December 22, 1998 |
| The invention relates to cold-curing, low-solvent or solvent-free 2-component polyurethane/polyurea compositions comprising a reaction product of:a) a diamine of the following composition ##STR1## where R is a linear, branched or cyclic alkylene radical having 2-16 carbon atoms w |
| 5847067 |
Uretdione-functional polyisocyanates, a process for their preparation, and their use |
December 8, 1998 |
| Urea- and uretdione-functional polyisocyanates having the following formula (I): ##STR1## where ##STR2## n is an integer of from 1 to 20; R.sup.1, R.sup.3 =not more than one linear or branched (cyclo)alkyl radical having 1-14 carbon atoms or H and at least one of the form |
| 5750727 |
Polyisocyanates containing uretdione groups |
May 12, 1998 |
| A polyisocyanate composition, comprising:A) from 55 to 87% by weight of a polyisocyanate which contains uretdione groups;B) from 10 to 30% by weight of blocking agent,C) from 3 to 30% by weight of polyol having more than two hydroxyl groups and/or chain extender having more than two hydroxyl |
| 5728795 |
Process for the preparation of blocked polyisocyanates, and their use in polyurethane coating sy |
March 17, 1998 |
| The invention relates to a process for the preparation of totally or partially blocked polyisocyanates based on a blocking agent and on a polyisocyanate containing at least two free NCO groups, if desired in the presence of a chain extender, in which the totally or partially blocked |
| 5719240 |
Compounds containing cyclic amidine and uretdione groups, a process for their preparation and th |
February 17, 1998 |
| A compound containing cyclic amidine groups and uretdione groups, having the formula: ##STR1## wherein X is O or NR.sup.2, R is the hydrocarbon radical of isophorone diisocyanate: ##STR2## R.sup.1 is a substituted (cyclo)alkylene radical which is substituted with O-3 CH.s |
| 5646228 |
Process for the preparation of blocked polyisocyanates, and their use in polyurethane coating sy |
July 8, 1997 |
| The invention relates to a process for the preparation of totally or partially blocked polyisocyanates based on a blocking agent and on a polyisocyanate containing at least two free NCO groups, if desired in the presence of a chain extender, in which the totally or partially blocked |
| 5633336 |
Polyamines containing urea groups and process for their preparation |
May 27, 1997 |
| Low-viscosity (cyclo)-aliphatic polyamines containing urea groups and having more than two amino groups may be prepared by reacting (cyclo)aliphatic diamines with polyisocyanates containing isocyanurate groups or biuret groups. Such polyamines are useful as components in PUR reaction |
| 5616658 |
Process for the production of matt epoxy resin and hybrid powder coatings |
April 1, 1997 |
| A curing agent for a composition useful for the production of matt epoxy resin and hybrid powder coatings, comprising a mixture ofa) salts of phthalic acid, isophthalic acid and terephthalic acid with the following amines ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 are identical |
| 5608016 |
Salts of pyromellitic acid, and their use as epoxy resin curing agents |
March 4, 1997 |
| The invention relates to salts of pyromellitic acid which comprise 1 mol of pyromellitic acid and 0.5 to 2 mol of a guanidine of the following composition: ##STR1## in which R, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are identical or different radicals from the group consisting of |
| 5556937 |
Salts of pyromellitic acid, a process for their preparation, and their use |
September 17, 1996 |
| The invention relates to salts of pyromellitic acid which comprise 1 mol of pyromellitic acid and 0.5. to 2 mol of a guanidine of the following composition: ##STR1## in which R, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are identical or different radicals from the group consisting of |
| 5550206 |
Polyamines containing urea groups |
August 27, 1996 |
| The present invention relates to novel polyamines containing urea groups and a process for the preparation of these polyamines, represented by the general formula: ##STR1## where n is: 2.ltoreq.n.gtoreq.1; and R denotes an alkylene radical having 2-14 C atoms which may optionally |
| 5541279 |
Process for the preparation of blocked polyisocyanates, and their use in polyurethane coating sy |
July 30, 1996 |
| The invention relates to a process for the preparation of totally or partially blocked polyisocyanates based on a blocking agent and on a polyisocyanate containing at least two free NCO groups, if desired in the presence of a chain extender, in which the totally or partially blocked |
| 5506334 |
Salts of pyromellitic acid, a process for their preparation and their use |
April 9, 1996 |
| The invention relates to new salts of pyromellitic acid, to a process for their preparation and to their use for the production of matt epoxide and hybrid powder coatings. |
| 5494994 |
Salts of pyromellitic acid, a process for their preparation and their use |
February 27, 1996 |
| The invention relates to new salts of pyromellitic acid, to a process for their preparation and to their use for the production of matt epoxide and hybrid powder coatings. |
| 5449528 |
Process for the production of matt epoxy resin coatings |
September 12, 1995 |
| A curing agent for a composition for the production of matt epoxide and hybrid powder coatings which is a mixture comprising:a) salts of phthalic, isophthalic and terephthalic acid and the following guanidines. ##STR1## wherein R, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may be identi |
| 5331078 |
Blocked highly functional polyisocyanate adducts, a process for the preparation thereof and the |
July 19, 1994 |
| A blocked highly functional polyisocyanate adduct is described with a melting point of <128.degree. C., preferably 80.degree.-110.degree. C., which is characterized in that the blocked polyisocyanate adduct with a functionality >2 contains 1.1-2 mol of blocking agent per blocked NC |
| 5218040 |
Light-stabile, reactive two-component PUR paints which cure at room temperature |
June 8, 1993 |
| The invention relates to light-stabile, reactive two-component PUR paints which cure at room temperature and are comprised of:a) isocyanate prepolymers blocked with certain sterically hindered piperidine derivatives; andb) (cyclo)aliphatic polyamines and/or aminoamides;wherewith 1-1.4 blocke |
| 5173560 |
Cold-curing solvent free, duroplastic polyurethane-polyurea compounds |
December 22, 1992 |
| Cold-curing, solvent-free, duroplastic two- and one-component polyurethane-polyurea compounds, comprisinga) a (cyclo)aliphatic polyisocyanate, with NCO groups blocked with specific, sterically-hindered piperidine derivative,b) a primary and/or secondary di- and/or polyamine, where --in the c |
| 5153296 |
Epoxide resin mixtures which harden at room temperature |
October 6, 1992 |
| The invention relates to epoxide resin mixtures hardenable at room temperature, comprised of:(A) Polyepoxides with more than one epoxide group per molecular;(B) Aliphatic or cycloaliphatic polyamines with more than two active hydrogen atoms bound to the nitrogen of the amino groups;(C) A rea |
| 5149805 |
Process for the production of monoblocked diisocyanates |
September 22, 1992 |
| Monoblocked diisocyanates which contain little free and diblocked diisocyanate are obtained by a process which involves adding 1 mole of a blocking agent to a diisocyanate which is present in excess and subsequently removing the excess diisocyanate by thin film evaporation. The compo |
| 4970306 |
Trans-cyclohexane-1,4-diisocyanate which is completely or partially blocked with epsilon-caprola |
November 13, 1990 |
| The invention relates to trans-cyclohexane-1,4-diisocyanate which is completely or partially blocked with epsilon-caprolactam and a method of manufacturing the same wherein 1 mole trans-cyclohexane-1,4-diisocyanate is reacted with 1 to 2 moles epsilon-caprolactam, without or with the |
| 4952632 |
Trans-cyclohexane-1,4-diisocyanate which is completely or partially blocked with epsilon-caprola |
August 28, 1990 |
| The invention relates to trans-cyclohexane-1,4-diisocyanate which is completely or partially blocked with epsilon-caprolactam and a method of manufacturing the same wherein 1 mole trans-cyclohexane-1,4-diisocyanate is reacted with 1 to 2 moles epsilon-coprolactam, without or with the |
| 4925974 |
Process for producing blocked, urea group-containing polyisocyanates |
May 15, 1990 |
| A process for the production of a blocked urea group-containing polyisocyanate from a partially blocked polyisocyanate and polyamine, comprising the steps of:(i) reacting a partially blocked polyisocyanate, said polyisocyanate being made substantially free of monomeric polyisocyanate, by |
| 4920173 |
PUR powder paints for matt coatings |
April 24, 1990 |
| PUR powder paints with matt surfaces that level well after baking are obtained when polymers containing hydroxyl groups with more than 2 OH groups in the molecule are reacted with blocked polyisocyanate-urea adducts of polyisocyanates and polyamines with an NCO content of 8 to 15 wt. |
| 4879356 |
Method of manufacturing single-component polyurethane baking enamels |
November 7, 1989 |
| A method of manufacturing a single-component PUR baking enamel comprising preparing a binder which is the reaction product of a partially blocked polyisocyanate (A) having a free NCO content>10 wt % and a total NCO content of 21-37 wt. % and a hydroxyl group-containing polyhydroxy |
| 4782128 |
Polyurethane powder coating compositions which yield a matte surface after setting |
November 1, 1988 |
| Polyurethane powder coating compositions which yield a matte surface after setting. The principal means of achieving matte surfaces with powder coating compositions is by adding fillers. These additives are detrimental to the coating properties. The known binder systems based on cycl |
| 4658005 |
Storage-stabile polyurethane resin powder enamels or varnishes |
April 14, 1987 |
| A storage-stabile polyurethane resin powder enamel which cures below 170.degree. C., which comprises a polyol in combination with isophorone diisocyanate (IPDI) which is blocked with a secondary amine having a boiling point of at least 150.degree. C. and which has the general formula |
| 4649067 |
One-component baking enamels |
March 10, 1987 |
| One-component baking enamels of polyesters, containing hydroxyl groups, and polyisocyanates, wherein the polyisocyanate component consists of 2-methyl-1,5-diisocyanatopentane (MPDI) having the formula (I): ##STR1## which is blocked totally or partially by .epsilon.-caprolactam or |
| 4528355 |
Powder varnishes based on partially blocked isophorone diisocyanate isocyanurate and hydroxyl gr |
July 9, 1985 |
| A powder coating composition exhibiting good storage stability, having a particle size less than 100 microns and yielding a matte surface after hardening at a temperature of 170.degree. to 220.degree. C., comprising:a mixture of at least one hydroxyl group containing polyester, at least one |
| 4500698 |
One-component baking enamels |
February 19, 1985 |
| One-component baking enamels of polyesters, which contain hydroxyl groups, and a polyisocyanate component, wherein the polyisocyanate component is a totally or partially blocked adduct or adducts of a mixture of 2-methyl-1,5-diisocyanatopentane (I) and 2-ethyl-1,5-diisocyanatobutane |
| 4500697 |
Mixture of substances suitable for use as a powder varnish or binder for powder varnishes |
February 19, 1985 |
| A mixture of substances suitable as a powder varnish or a binder for powder varnishes containing an isocyanate component with partially or totally blocked isocyanate groups, and a polyhydroxyl component, wherein mixed trimers or mixtures of individual trimers are used as the isocyanate |
| 4500696 |
Powder surface coatings |
February 19, 1985 |
| Powder surface coatings of polyols and a polyisocyanate component, wherein blocked adducts of 2-methyl-1,5-pentanediisocyanate, 2-ethyl-1,4-butane diisocyanate or a mixture thereof are used is the polyisocyanate component, according to the formulas (I) and (II): ##STR1## wherein |
| 4483798 |
Polyaddition products containing uretidione groups and process for their preparation |
November 20, 1984 |
| A method for producing a polyaddition product of isophorone diisocyanate and diols which comprises, reacting a uretidione group-containing dimer of isophoronediisocyanate, which is decomposable by heat into 98% isophorone diisocyanate, with a diol, wherein the ratio of NCO to OH groups i |
| 4463154 |
Polyurethane powder enamels free of cleavage products as well as enamel coatings produced from s |
July 31, 1984 |
| A polyurethane powder enamel free of volatile cleavage products comprising an adduct of the uretidinedione dimer of isophorone diisocyanate with a diol, wherein the adduct has the formula ##STR1## wherein R= ##STR2## X=NCO or ##STR3## R"=a divalent aliphatic, cycloali |
| 4430474 |
Stoving enamel containing blocked isocyanates |
February 7, 1984 |
| A stoving enamel comprising (a) 30-70% by weight of a mixture of a polymer containing hydroxyl groups having a hydroxyl number between 40 and 240 mg KOH/g with an isocyanurate-free derivative of isophorone diisocyanate containing uretidinedione groups and blocked isocyanate groups, (b) 0 |
| 4413079 |
Powder enamels free of blocking agents |
November 1, 1983 |
| A polyurethene powder enamel comprising a mixture of(a) an adduct of a uretidinedione dimer of isophorone diisocyanate and a diol having the following formula: ##STR1## n.gtoreq.1, and R'=a divalent aliphatic, cycloaliphatic, araliphatic, or aromatic hydrocarbon radical, which is the |
| 4383076 |
Single component enamels based on blocked polyisocyanurate polyisocyanates |
May 10, 1983 |
| A single component enamel composition comprising a polyester component containing more than one hydroxy group in the molecule and a hardener component, said hardener comprising at least one diisocyanate capped with .epsilon.-caprolactam and/or at least one polyisocyanate containing i |
| 4355058 |
Powdery coating media and their use |
October 19, 1982 |
| Storage stable epoxy resin powder coating compositions are disclosed, which contain a solid epoxy resin and, as hardening agent, a blocked polyisocyanate compound or isocyanate terminated polymer, wherein the blocking agent is an imidazoline compound. |
