C08G18/1833

DIRECT ALKOXYLATION OF BIO-OIL
20170355927 · 2017-12-14 ·

An alkoxylated bio-oil composition is provided. The alkoxylated bio-oil composition may include an alkoxylated bio-oil prepared from an alkoxylation of dewatered bio-oil. A method for preparing an alkoxylated bio-oil composition is provided. A copolymer composition is provided. The copolymer composition may include an alkoxylated bio-oil copolymer unit. A method for preparing a copolymer composition is provided.

One-pack moisture-curing composition
09834711 · 2017-12-05 · ·

A one-pack moisture-curing composition of the present technology contains a preliminary composition, an adhesiveness-imparting agent containing a compound (A) and/or a compound (B), a first catalyst containing a compound (C) and/or dibutyltin bis(pentadione), and a second catalyst containing a dimorpholinodiethylether.

Thixotropic composition that can be used as an anti-running agent for mastics
11261352 · 2022-03-01 · ·

An adhesive sealant composition of at least one moisture-crosslinkable prepolymer and an anti-sagging agent of 5% to 30% by weight of a thixotropic composition of 10% to 40% by weight of a bisurea a) obtained by reaction of a primary aliphatic amine a1) with a diisocyanate a2) having a molar mass of less than 500 g/mol, and 60% to 90% by weight of an ester b) of formula (I): ##STR00001##
in which R.sup.1, R.sup.2 and R.sup.3 are an oxycarbonylalkyl radical having from 4 to 20 carbon atoms, R.sup.4 is hydrogen, methyl or ethyl or —CH.sub.2—R.sup.5 in which R.sup.5 is oxycarbonylalkyl having from 4 to 20 carbon atoms, in the form of a suspension of solid particles of bisurea a) in a continuous phase formed by ester b).

IMPROVEMENTS RELATING TO POLYURETHANES

A process for making a polyurethane foam, comprising combining, at an isocyanate index of at most 120: (a) a polyol component comprising (i) from 10 to 70 parts by weight of a first polyol having a number average molecular weight of 2000 to 12000 Dalton, and a functionality of 2 to 6; and (ii) from 90 to 30 parts by weight of a second polyol having a number average molecular weight of 300 to 1500 Dalton, a functionality of 2 to 6, and a hydroxyl value of 100 to 600 mg KOH/g; (b) an amine catalyst consisting of: (i) from 0.2 to 0.6 pphp of triethylenediamine, and optionally from 0.05 to 0.20 pphp bis(dimethylaminoethyl)ether; or (ii) an amount of one or more tertiary amines having a catalytic gelling and/or blowing activity equivalent to (i); and (c) foam-forming reactants comprising an aromatic polyisocyanate, to obtain the foam.

Viscoelastic sound-absorbing polyurethane foam and preparation method thereof

The present invention discloses a viscoelastic sound-absorbing polyurethane foam and a method for preparing the same, the foam being prepared by reacting a polyisocyanate composition and an isocyanate reactive component. The isocyanate reactive component comprises, based on the weight of mixed polyethers, 30-80 wt % of (bii) a copolyol of epoxypropane-epoxyethane, or a conjugate thereof, wherein the content of oxy-ethylidene unit is 5-35 wt %; 2-20 wt % of (biii) a copolyol of epoxypropane-epoxyethane, or a conjugate thereof, wherein the content of oxy-ethylidene unit is 70-100 wt %; and 20-70 wt % of (biv) a copolyol of epoxypropane-epoxyethane, or a conjugate thereof, wherein the content of oxy-ethylidene unit is 0-20 wt %. The sound-absorbing foam of the present invention has a ball rebound rate of 15-30% and good sound absorption performance.

FLAME RETARDANT SLABSTOCK POLYURETHANE FOAM COMPOSITION

A flame retarded slabstock polyurethane foam composition including polyol and polyisocyanate as main materials, and an additive for forming a general polyurethane foam except for a flame retarded agent, in which the polyol may be polyether polyol and may include 10 to 45 wt % of polyether polyol (A) having a weight-average molecular weight of 2,000 to 5,000 g/mol and 55 to 90 wt % of polyether polyol (B) having a weight-average molecular weight of 600 to 1,500 g/mol, and an isocyanate index of the composition defined by Equation 1 may be in a range of 70 to 95, and Equation 1 may be Isocyanate index=mole of isocyanate group (NCO)/mole of hydroxyl group (OH)×100.

FLAME RETARDANT SLABSTOCK POLYURETHANE FOAM COMPOSITION
20170247494 · 2017-08-31 ·

A flame retardant slabstock polyurethane foam composition includes polyol and polyisocyanate as main ingredients and an ordinary additive, excluding a flame retardant, for forming polyurethane foams. The polyol is bio-polyetherpolyol derived from vegetable oil and comprises 50% to 90% by weight of polyetherpolyol (A) having a weight average molecular weight of 3,000 to 6,000 g/mol and 10% to 50% by weight of polyetherpolyol (B) having a weight average molecular weight of 500 to 1,000 g/mol. An isocyanate index of the polyol defined by the following Equation 1 is 70 to 95

[00001] Isocyanate .Math. .Math. Index = Number .Math. .Math. of .Math. .Math. moles .Math. .Math. of .Math. .Math. iscocyanate .Math. .Math. groups .Math. .Math. ( NCO ) Number .Math. .Math. of .Math. .Math. moles .Math. .Math. of .Math. .Math. hydroxyl .Math. .Math. ( OH ) .Math. .Math. groups × 100. [ Equation .Math. .Math. 1 ]

Method for the preparation of microcellular polyurethane elastomers

This invention relates to a method of preparing a microcellular polyurethane elastomer by reacting naphthalene diisocyanate with a polyol to prepare a prepolymer containing an isocyanate (NCO) group, followed by mixing the prepared polyurethane prepolymer with a plasticizer, water, an emulsifier and the like, and then foaming the prepolymer blend to prepare a polyurethane elastomer, wherein the emulsifier is a mixture of (a) a compound selected from the group consisting of 2,4-toluene diisocyanate, 2,6-toluene diisocyanate, 2,4-diphenylmethane diisocyanate, 4,4′-diphenylmethane diisocyanate, hexamethylene diisocyanate, 1,4′-cyclohexane diisocyanate and mixtures thereof, and (b) a C.sub.2-10 hydrocarbon having a molecular weight of 500 or less with two to four hydroxyl groups, or mixtures thereof. The method of the invention can optimize the viscosity and properties of the prepolymer resulting from the reaction of naphthalene diisocyanate with a polyol, thus improving processability.

IMPACT PROTECTION FOAM
20170233519 · 2017-08-17 ·

An impact protection foam includes the reaction product of an isocyanate component and an isocyanate-reactive component. The isocyanate component includes at least one isocyanate. The isocyanate-reactive component includes from 20 wt % to 80 wt % of a hydrophobic polyol component and from 20 wt % to 80 wt % of a hydrophilic polyol component, based on the total weight of the isocyanate reactive component. The hydrophobic polyol component includes at least one natural oil hydrophobic polyol, and the hydrophilic polyol component includes at least a polyether polyol having a number average molecular weight from 3,000 g/mol to 10,000 g/mol and a primary hydroxyl content of at least 50 wt %. The isocyanate index is from 50-120. The foam article has a rate of energy dissipation less than 35 KN over the temperature range from 10 C to 40 C and a Shore A hardness of less than 55 at both 23° C. and −10° C.

PROCESS AND COMPOSITION FOR THE PRODUCTION OF FLEXIBLE POLYURETHANE FOAM

Disclosed are a process of producing a polyurethane foam product, a polyurethane foam product pre-mix, polyurethane foam product formulation, and a polyurethane foam product. The process of producing the polyurethane foam product includes contacting a halogen containing composition with a polyurethane foam product pre-mix. The polyurethane foam product pre-mix includes the halogen containing composition. The polyurethane foam product formulation includes a polyol component, an isocyanate component, and a halogen containing compound component. The polyurethane foam product is formed by the pre-mix having the halogen containing composition.