Covestro LLC

Bayer Materialscience, LLC

Bayer Antwerp, N.v.

Bayer Antwerpen N.v.

Bayer Aktiengesellschaft

George Combs

Kenneth G McDaniel

Nigel Barksby

Jeffrey F Dormish

Susan C Pigott

Jose F Pazos

Don S Wardius

Edward Browne

Gerald W Phelan

Robert D Duffy

Disclosed are methods for formulating a polyisocyanurate foam-forming composition with good low temperature insulation performance. The polyisocyanurate foam-forming composition includes: a) an organic polyisocyanate, b) a polyol composition comprising at least one polyester polyol with a nominal hydroxyl functionality of at least 2.0, c) a blowing agent composition present in an amount sufficient to produce foam having a density of less than 1.85 lb/ft3 and comprising: (1) a hydrocarbon having an atmospheric pressure boiling point of at least 68&#xb0; F. (20&#xb0; C.), and (2) water, d) a trimerization catalyst, e) a flame retardant, and f) a silicone surface-active agent. The methods include: (A) evaluating a measured Relative Hydrocarbon Solubility and, optionally, evaluating a measured a Surfactant Water Solubility, a Surfactant Turbidity, or evaluating both the Surfactant Water Solubility and the Surfactant Turbidity; and (B) formulating the polyisocyanurate foam-forming composition with the silicone surface-active agent in light of such evaluation.

Methods for formulating polyisocyanurate foam-forming compositions, related polyisocyanurate foam-forming compositions, and foams produced thereby

Polyurethane foams having a NFPA 101 Class B rating (ASTM E-84) which pass the FM 4450 Calorimeter Test are produced by reacting: (a) an organic polyisocyanate, (b) at least one polyether polyol or polyester polyol with a nominal hydroxyl functionality of at least 2.0, (c) a blowing agent composition and (d) at least one halogen-free flame retardant. The blowing agent composition includes: (1) no more than 10% by weight, based on total weight of the foam-forming composition, of one or more hydrocarbons having an LEL less than 2% by volume in air, and/or (2) a hydrocarbon having an LEL greater than 2% by volume in air, and (3) up to 1% by weight, based on total weight of foam-forming composition, of water.

Polyurethane and polyisocyanurate rigid foams suitable for roofing insulation

Disclosed are methods for designing a polyisocyanurate foam-forming composition with good low temperature insulation performance. The methods include: (a) measuring the LTTR of a first polyisocyanurate faced foam laminate prepared from a first polyisocyanurate foam-forming composition comprising a blowing agent composition, wherein the LTTR is measured at a plurality of temperatures to identify a calculated inflection point temperature below which defines a first mathematical correlation between temperature and the LTTR of the first polyisocyanurate faced foam laminate and above which defines a second mathematical correlation between temperature and the LTTR of the first polyisocyanurate faced foam laminate; (b) identifying a plurality of predicted mathematical correlations between temperature and the LTTR of the first polyisocyanurate faced foam laminate at a plurality of reduced inflection point temperatures below the calculated inflection point temperature; and (c) using the plurality of predicted mathematical correlations identified in step (b) to design a second polyisocyanurate foam-forming composition that comprises a blowing agent composition and produces a second polyisocyanurate faced foam laminate that has a LTTR satisfying a threshold value at all mean insulation temperatures within a temperature range of 10&#xb0; F. to 75&#xb0; F. (&#x2212;12.2&#xb0; C. to 23.9&#xb0; C.).

Methods for designing polyisocyanurate foam-forming compositions, related polyisocyanurate foam-forming compositions, and foams produced thereby

This invention relates to novel double metal cyanide catalysts and to a process for the production of these double metal cyanide catalysts. These DMC catalysts can be used to prepare polyoxyalkylene polyols which have low amounts of high molecular weight tail compared polyoxyalkylene polyols prepared from DMC catalysts of the prior art.

Catalyst for the production of polyols having lower amounts of high molecular weight tail

Polyurethane foams having a NFPA 101 Class B rating (ASTM E-84) which pass the FM 4450 calorimeter Test are produced by reacting: (a) an organic polyisocyanate, (b) at least one polyether polyol or polyester polyol with a nominal hydroxyl functionality of at least 2.0, (c) a blowing agent composition and (d) at least one halogen-free flame retardant. The blowing agent composition includes: (1) no more than 10% by weight, based on total weight of the foam-forming composition, of one or more hydrocarbons having an LEL less than 2% by volume in air, and/or (2) a hydrocarbon having an LEL greater than 2% by volume in air, and (3) up to 1% by weight, based on total weight of foam-forming composition, of water.

Polyurethane and polyisocyanurate rigid foams for roofing insulation

The present invention provides highly fluorescent markers, made from a reactive polymer and an isocyanate, that fluoresce in the ultraviolet or near infrared region without being visible to the human eye at low concentrations in the fluid or article being marked. The molecular weight and fluorescence emission wavelength of these highly fluorescent marker compounds can be adjusted to provide a multitude of markers with unique fluorescence signatures.

Highly fluorescent markers for fluids or articles

Cold-pressed mats of lignocellulosic material having a Push Off Test extension equal to at least 85% of that of a mat made with a urea-formaldehyde resin are produced from a lignocellulosic material and binder system. These mats are produced at ambient temperature by separately adding each component of the binder system to the lignocellulosic material, blending the lignocellulosic material and binder system to coat the lignocellulosic material with the binder system, forming the coated lignocellulosic material into the desired form and applying pressure to the formed lignocellulosic material to obtain the desired thickness. The binder system includes: (i) at least one polyfunctional isocyanate and (ii) at least one aqueous dispersion of an adhesive or tackifier.

Cold-pressed mats of lignocellulosic material having improved cold tack and a process for their production

The present invention provides a process for the double metal cyanide (DMC)-catalyzed production of low unsaturation polyethers from boron-containing starters. The polyethers produced by the inventive process may be reacted with one or more isocyanates to provide polyurethane products including coatings, adhesives, sealants, elastomers, foams and the like. The inventive process may be used to prepare fuel additives from C-Cboron-containing polyethers, more particularly from Calcohols.

Double metal cyanide-catalyzed, low unsaturation polyethers from boron-containing starters

The present invention provides process for producing polyols using a crystalline, hydroxide containing double metal cyanide (DMC) catalyst of the formulae (I) or (II),M[M(CN)]OH.L&#x2003;&#x2003;(I)M[M(CN)].zM(OH).L&#x2003;&#x2003;(II)wherein Mrepresents a metal selected from Zn, Fe, Ni, Mn, Co, Sn, Pb, Fe, Mo, Mo, Al, V, V, Sr, W, W, Cuand Cr, Mrepresents a metal selected from Fe, Fe, Co, Co, Cr, Cr, Mn, Mn, Ir, Ni, Rh, Ru, Vand V, L represents an organic ligand and x, y and q are chosen to maintain electroneutrality. The polyols of the present invention may find use in the preparation of polyurethanes.

Process for production of polyols with hydroxide containing double metal cyanide (DMC) catalysts

The present invention provides a crystalline, hydroxide containing double metal cyanide (DMC) catalyst of the formulae (I) or (II),M[M(CN)]OH.L&#x2003;&#x2003;(I)M[M(CN)].zM(OH).L (II)wherein Mrepresents a metal selected from Zn, Fe, Ni, Mn, Co, Sn, Pb, Fe, Mo, Mo, Al, V, V, Sr, W, W, Cuand Cr, Mrepresents a metal selected from Fe, Fe, Co, Co, Cr, Cr, Mn, Mn, Ir, Ni, Rh, Ru, Vand V, L represents an organic ligand and x, y and q are chosen to maintain electroneutrality. Further provided are processes for the production of the inventive DMC catalysts. The crystalline, hydroxide containing DMC catalysts of the present invention may find use in the preparation of polyols, such as polyether polyols.

Hydroxide containing double metal cyanide (DMC) catalysts

Oleophilic polyoxyalkylene monoethers having reduced water affinity are disclosed. The monoethers have a hydrocarbyl residue, a polyoxyalkylene moiety, and a hydroxyl end group. The monoethers contain less than about 6 mole percent of alkoxylated unsaturates, and preferably less than about 5 mole percent of polyoxyalkylene diols. The monoethers offer substantial advantages for fuel compositions, particularly reduced water affinity. By using deposit-control additives based on the monoethers, formulators can offer better fuels for cleaner engines.

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McMurray, PA, United States of America

George Combs