Abstract: Rigid polyurethanes and composites are made from a reaction mixture containing an aromatic polyisocyanate and a mixture of polyols. The mixture of polyols has an average hydroxyl equivalent weight of 125 to 275 and an average hydroxyl funtionality of 2.5 to 4 hydroxyl groups per molecule. 5 to 33% of the weight of the mixture of polyols is triisopropanolamine. Rigid polyurethanes made from such a reaction mixture have excellent dimensional stability, even when cured at or near room temperature.

Abstract: A composition for producing a fiber-reinforced polyurethane composite product including: (I) a reactive mixture of: (a) at least one polyisocyanate; (b) at least one polyol, and (c) at least one tin (IV)-based catalyst; and (II) at least one fibrous material; and a fiber-reinforced polyurethane composite product produced from the above composition.

Abstract: A polyurethane based filament winding resin reaction mixture, a resin bath and a filament winding apparatus are set forth. The reaction mixture comprises an isocyanate component including one or more isocyanates and an isocyanate-reactive component including from 5 wt % to 95 wt % of one of more polyols having a number acerage molecular weight from 50 g/mol to 8,000 g/mol, from 2 wt % to 30 wt % of one or more propane based triols, and from 1 wt % to 15 wt % of one or more trimester-phosphates, based on the total weight of the isocyanate-reactive component. A ratio of a total weight of the one or more propane based triols to a total weight of the one or more trimester-phosphates is between 1.1 and 5.0.

Abstract: A cardanol modified epoxy polyol may be used for forming a polyurethane resin system for use in applications such as coatings and composites formed by filament winding. The polyurethane resin system includes an isocyanate-reactive component that has a first cardanol component and the cardanol-modified epoxy polyol, and includes an isocyanate component that includes at least one polyisocyanate. The cardanol-modified epoxy polyol is a reaction product of an epoxy component and an epoxy-reactive component at a ratio of epoxy groups to epoxy reactive groups from 1:0.95 to 1:5, and the epoxy-reactive component includes a second cardanol component.

Abstract: Fiber-reinforced polyurethane structures are made with a polyol composition that contains a particulate filler such as calcium carbonate, in addition to the fibers. The polyol composition and the polyisocyanate composition are selected such that the polymer formed in their reaction has a calculated molecular weight between crosslinks (Mc) of from 300 to 420. The polyisocyanate component contains a urethane-modified MDI and/or a urethane-modified polymeric MDI.

Abstract: A cardanol modified epoxy polyol may be used for forming a polyurethane resin system for use in applications such as coatings and composites formed by filament winding. The polyurethane resin system includes an isocyanate-reactive component that has a first cardanol component and the cardanol-modified epoxy polyol, and includes an isocyanate component that includes at least one polyisocyanate. The cardanol-modified epoxy polyol is a reaction product of an epoxy component and an epoxy-reactive component at a ratio of epoxy groups to epoxy reactive groups from 1:0.95 to 1:5, and the epoxy-reactive component includes a second cardanol component.

Abstract: Fiber-reinforced polyurethane composite plates having a thickness of at least 12 mm contains at least 20% by weight of reinforcing fibers embedded in a polyurethane polymer matrix, which polyurethane polymer matrix has a calculated molecular weight between crosslinks of from 450 to 2500. The composite plates have excellent load-bearing properties and exhibit small permanent sets upon loading.

Abstract: The present invention relates to a flame-resistant composition, a fiber-reinforced polyurethane composite comprising the flame-resistant composition and the use thereof. In particular, the invention describes a flame-resistant polyurethane-composite forming composition and a combustion-modified, fiber-reinforced polyurethane composite comprising the flame-resistant polyurethane-composite forming composition, for applications in vehicles and for building products. The invention also describes a long-fiber injection molding process for the preparation of the combustion-modified, fiber-reinforced polyurethane composite. The fiber-reinforced polyurethane composite of the invention show improved fire-reaction behavior, measured as Limiting Oxygen Index (LOI), and a reduced smoke production.

Abstract: An elongated non-metal, non-corrosive compressor mounting base plate structure (40) including (I) a base plate segment (50) having a top surface (51) and a bottom surface, wherein the base plate segment (50) is adapted for receiving a compressor on the top surface (51) of the base plate (50); (II) a means for receiving and removably affixing a compressor to the top surface (51) of the base plate segment (50); and (III) a reinforcement means (60A, 60B) integral with said base plate segment (50); wherein said reinforcement means (60A, 60B) includes at least two elongated tubular reinforcement segments (60A, 60B) integral with the base plate segment (50), one tubular reinforcement segment (60A, 60B) at each of the elongated sides of the base plate segment (50) generally opposite each other in mirror image and generally parallel to each other along the longitudinal plane of the base plate segment (50); said reinforcement means (60A, 60B) being adapted for providing the compressor mounting base plate structure (40

Abstract: An elongated non-metal, non corrosive compressor mounting base plate structure including: (I) a base plate (40) segment having a top surface and a bottom surface, said base plate segment further comprising four vertical sidewalls (54) disposed perpendicular to the horizontal plane of the base plate and integral with the base plate segment, one vertical sidewall disposed on each of the four sides of the base plate segment and along the perimeter of the top surface of the base plate segment forming a base plate tray member; wherein the base plate segment is adapted for receiving a compressor on the top surface of the base plate segment within the area of the base plate segment surrounded by the four vertical sidewalls; (II) a means (56) for receiving and removably affixing a compressor to the top surface of the base plate segment; and (III) a reinforcement means integral with said base plate segment; wherein said reinforcement means includes at least two elongated transverse reinforcement segments integral with

Abstract: The present invention relates to a flame-resistant composition, a fiber-reinforced polyurethane composite comprising the flame-resistant composition and the use thereof. In particular, the invention describes a flame-resistant polyurethane-composite forming composition and a combustion-modified, fiber-reinforced polyurethane composite comprising the flame-resistant polyurethane-composite forming composition, for applications in vehicles and for building products. The invention also describes a long-fiber injection molding process for the preparation of the combustion-modified, fiber-reinforced polyurethane composite. The fiber-reinforced polyurethane composite of the invention show improved fire-reaction behaviour, measured as Limiting Oxygen Index (LOI), and a reduced smoke production.

Abstract: Fiber-reinforced polyurethane composite plates having a thickness of at least 12 mm contains at least 20% by weight of reinforcing fibers embedded in a polyurethane polymer matrix, which polyurethane polymer matrix has a calculated molecular weight between crosslinks of from 450 to 2500. The composite plates have excellent load-bearing properties and exhibit small permanent sets upon loading.

Abstract: Fiber-reinforced polyurethane structures are made with a polyol composition that contains a particulate filler such as calcium carbonate, in addition to the fibers. The polyol composition and the polyisocyanate composition are selected such that the polymer formed in their reaction has a calculated molecular weight between crosslinks (Mc) of from 300 to 420. The polyisocyanate component contains a urethane-modified MDI and/or a urethane-modified polymeric MDI.