Patent classifications
C08G18/4027
NOVEL COMPOSITIONS AND METHODS TO PRODUCE ALKOXYLATED TRIAZINE-ARLHYDROXY-ALDEHYDE CONDENSATES
The embodiments described herein generally relate to methods and chemical compositions of triazine-arylhydroxy-aldehyde condensates. In one embodiment, a triazine-arylhydroxy-aldehyde condensate is reacted with at alkoxylation agent to form alkoxylated triazine-arylhydroxy-aldehyde condensates.
POLYESTER POLYOLS IMPARTING IMPROVED FLAMMABILITY PROPERTIES
An aromatic polyester polyol having a nominal functionality of at least about 2 is produced from the esterification reaction of a phthalate-based composition containing less than 50 mol % of ortho-phthalic acid or phthalic anhydride, with a hydroxyl material containing at least 20 mol % of at least one branched aliphatic diol, and optionally transesterified with at least one hydrophobic material. The polyester polyol has improved shelf-life stability as demonstrated by the polyester polyol remaining clear and homogeneous for at least 6 months when stored at room temperature. The polyester polyol, when incorporated into a polyol foam-forming resin composition in an amount of at least 40 wt %, results in polyurethane and polyisocyanurate foams that exhibit low smoke and weight loss upon burning conditions.
Amine catalyst for improving the stability of polyurethane systems having halogen containing blowing agents
Catalyst compositions useful in the production of insulating polyurethane or polyisocyanurate foam are disclosed. The catalyst compositions impart increased stability of a mixture of the catalyst, a halogen-containing blowing agent, and a polyol. These catalyst compositions comprise of at least 10% of a tetraalkylguanidine and at least 10% of a tertiary amine catalyst with an isocyanate reactive group. These improved catalysts can be used with any halogenated blowing agent, and provide substantial stability benefits with the use of hydrofluoroolefins and hydrofluorochloroolefins. In an exemplary embodiment, a process includes providing a pre-mix comprising a hydrohaloolefin blowing agent, at least one polyol, water, and a catalyst comprising 10-50% tetramethylguanidine and 10-90% of one or more of an amine catalyst containing an isocyanate reactive group.
FLAME RETARDANT RIGID HIGH DENSITY POLYURETHANE FOAM
The present invention provides all liquid, two-component foam forming compositions for forming fire-resistant rigid polyurethane foams comprising a chlorine-free liquid flame retardant (FR) additive. The compositions comprise a polyisocyanate component and, as a separate component, a polyol component of a blend of one or more high hydroxyl functional aromatic polyester polyols and one or more low hydroxyl functional aromatic polyester polyols, a novolac polyether polyol, a trimerization catalysts, a liquid FR additive, preferably, one FR additive, more preferably, a halogen free FR additive, and water, or water and a physical blowing agent as a blowing agent. The low hydroxyl functional aromatic polyester polyols enable the provision of readily processible, all liquid polyol components having a low viscosity as well as ASTM E84A Class A rated rigid polyurethane foams.
Use of evaporative coolants to manufacture filled polyurethane composites
Polyurethane composites and methods of preparation are described herein. The methods of making the polyurethane composite can include mixing (1) at least one isocyanate selected from the group consisting of diisocyanates, polyisocyanates, and mixtures thereof, (2) at least one polyol, (3) an inorganic filler, and (4) an evaporative coolant in an extruder to form a mixture. The method also include extruding the mixture into a mold cavity, generating heat in the mold cavity from the reaction of the at least one isocyanate and the at least one polyol, and allowing the evaporative coolant to migrate to an interface between the mixture and the interior mold surface. The temperature of the mixture causes evaporation of the evaporative coolant at the interface thereby removing heat at the interface. Suitable evaporative coolants for use in the methods of making the polyurethane composites include hydrofluorocarbons and hydrochlorofluorocarbons.
Paint composition
A paint composition contains (A) a binder component, (B) a first rheology control agent, and (C) a second rheology control agent, wherein the first rheology control agent (B) contains a reaction product of (b1) a polyisocyanate compound, (b2) a primary monoamine having a number average molecular weight of 300 or less, and (b3) a polyether amine having a number average molecular weight of more than 300 and less than 6000; the proportion of the polyether amine having a number average molecular weight of more than 300 and less than 6000 (b3) is 0.5 mass % or more and less than 10 mass % based on the total amount of the components (b1) to (b3); the second rheology control agent (C) contains a reaction product of (c1) a polyisocyanate compound, (c2) a primary monoamine having a number average molecular weight of 300 or less, and (c3) a polyether amine having two or more amino groups and having a number average molecular weight of 1000 or more and less than 6000; and the proportion of the polyether amine having two or more amino groups and having a number average molecular weight of 1000 or more and less than 6000 (c3) is within a range of 10 to 30 mass % based on the total amount of the components (c1) to (c3).
COMPOSITES FORMED FROM AN ABSORPTIVE FILLER AND A POLYURETHANE
Composite materials and methods for their preparation are described herein. The composite materials can comprise a polyurethane and an absorptive filler. The polyurethane can be formed from the reaction of at least one isocyanate selected from the group consisting of diisocyanates, polyisocyanates, and combinations thereof, and one or more isocyanate-reactive monomers. The one or more isocyanate-reactive monomers can comprise at least one polyol and a first isocyanate-reactive monomer which includes one or more isocyanate-reactive functional groups and a moiety configured to associate with the absorptive filler.
Delay action catalyst for improving the stability of polyurethane systems having halogen containing blowing agents
Catalyst compositions useful in the production of insulating polyurethane or polyisocyanurate foam are disclosed. The catalyst compositions impart increased stability of a mixture of the catalyst, a halogen-containing blowing agent, and a polyol. These catalyst compositions include amine/acid salts with a pH of <7.0 which can be used in combined with tertiary amine catalysts and metal-based or ammonium-based trimerization catalyst and at least one metal-based gel catalyst and optionally one or more of an additional catalyst described in (1) or (2). These improved catalysts can be used with any halogenated blowing agent, and provide substantial stability benefits with the use of hydrofluoroolefins and hydrofluorochloroolefins. In an exemplary embodiment, a process includes providing a pre-mix comprising an organic carboxylic di-acid, tri-acid or poly-acid component and contacting a tetraalkylguanidine and/or a tertiary amine containing an isocyanate reactive group with the acid component in the pre-mix to form a mixture of tetraalkylguanidine salt or tertiary amine salt or their combination.
Method for forming multilayer coated film
In a method for forming a multilayer coated film including an intermediate coated film, a base coated film, a clear coated film and an adhesive layer, an intermediate coating composition (X) contains a hydroxyl group-containing polyester resin (A), a melamine resin (B), a pyrazole-blocked polyisocyanate compound (C), a pigment (D), and an organic solvent (E), a content ratio (B/C) is from 5/35 to 20/15 in terms of solid content ratio, and a concentration (PWC) of the pigment (D) is from 40% to 60%. The cured intermediate coated film has, at 20 C., an elongation at break of 40% to 90%, a Young's modulus of 600 MPa to 1,600 MPa, and a Tukon hardness of 3 to 9.
PRODUCTION OF POLYURETHANE FOAM
Compositions suitable for production of polyurethane foams, comprising at least one OH-functional compound (OHC) obtainable by the partial or complete hydrogenation of ketone-aldehyde resins, wherein the OH-functional compound contains at least one structural element of the formula (1a) and optionally of the formulae (1b) and/or (1c),
##STR00001##
with R=aromatic with 6-14 carbon atoms, (cyclo)aliphatic with 1-12 carbon atoms, R.sup.1=H, CH.sub.2OH, R.sup.2=H, or a radical of the formula (CH.sub.2CH(R)O).sub.yH where R is hydrogen, methyl, ethyl or phenyl and y=1 to 50, k=2 to 15, preferably 3 to 12, more preferably 4 to 11, m=0 to 13, preferably 0 to 9, l=0 to 2,
where the sum of k+l+m is from 5 to 15, preferably from 5 to 12, and k>m, are described.