Abstract: A gutter protector formed of a flexible open cell porous foam has at least one undulated bottom surface. The undulations of the bottom surface may be ridges defining generally parallel channels to direct water through the gutter passageway. Optionally, undulations may be provided on one side surface. Such undulations on the side surface may be ridges or other convolute cut projections that are compressible and help to secure the gutter protector under compression within the gutter passageway.

Abstract: A hydrophilic ester polyurethane foam is flame laminated to a substrate using a thin sacrificial layer, preferably a sacrificial foam layer. The sacrificial layer in the resulting laminate structure has a thickness of 1.5 mm or less, and preferably is substantially burnt away. The resulting laminate exhibits good bond strength along its length and width without loss of liquid wicking and absorptive properties.

Abstract: A porous filter medium forms a filter or liner for extracting hydrocarbons from vapors emitted from a motorized vehicle, device or appliance fuel tank. The filter medium is a polymer network of a foam, nonwoven or collection of particles and has fine pore size and a butane working capacity (W/W %) of 4.0 percent or higher.

Abstract: A hydrophilic ester polyurethane foam is flame laminated to a substrate using a thin sacrificial layer, preferably a sacrificial foam layer. The sacrificial layer in the resulting laminate structure has a thickness of 1.5 mm or less, and preferably is substantially burnt away. The resulting laminate exhibits good bond strength along its length and width without loss of liquid wicking and absorptive properties.

Abstract: Filter and/or absorbent materials comprising an open cell foam having a surface, wherein the surface of the open cell foam is at least partially coated with a layer comprising photocatalytic titanium dioxide; methods for making such materials comprising: (a) providing a mixture comprising photocatalytic titanium dioxide in a binder; (b) immersing an open cell foam article in the mixture; (c) removing the article from the mixture and removing excess mixture from the article; and methods of treating gases or liquids by passing the gas or liquid through such a material wherein the material has been activated by UV radiation are described.

Abstract: Polyurethane foams formed under vacuum (below atmospheric pressure) conditions using toluene diisocyanate or a specific mixture of polyisocyanates with a specific mixture of polyether and graft polyols produces a foam with lower density and better flame retardancy than latex foam, but with equally high resiliency. The foam-forming ingredients are mixed together and foamed under controlled pressures in the range 0.6 to 0.95 bar (absolute), preferably 0.8 to 0.95 bar (absolute). The resulting foam has a ball rebound above about 65 percent.

Abstract: Polyurethane foams formed at above atmospheric pressure conditions using methylene diisocyanate or a specific mixture of polyisocyanate and with a major portion of methylene diisocyanate (MDI) with a specific mixture of polyether and graft polyols produces high density viscoelastic foams with improved hand touch (surface smoothness) that better retain viscoelasticity over time. The foam-forming ingredients are mixed together and foamed at controlled pressures in the range 1.05 to 1.5 bar (absolute), preferably 1.1 to 1.3 bar (absolute).

Abstract: Polyurethane foams formed using a specific mixture of polyether and graft polyols with toluene diisocyanate have fine cell size (over 70 pores per inch) and higher durability with IFD25 retention over 70% after 12,000 cycles of roll-shear. The foam-forming ingredients are mixed together and foamed at controlled pressures in the range 1.0 to 1.5 (absolute), preferably 1.05 to 1.5 bar (absolute). The foams make particularly good carpet cushions.

Abstract: Polyurethane foams formed at above atmospheric pressure conditions using methylene diisocyanate or a specific mixture of polyisocyanate and with a major portion of methylene diisocyanate (MDI) with a specific mixture of polyether and graft polyols produces high density viscoelastic foams with improved hand touch (surface smoothness) that better retain viscoelasticity over time. The foam-forming ingredients are mixed together and foamed at controlled pressures in the range 1.05 to 1.5 bar (absolute), preferably 1.1 to 1.3 bar (absolute).

Abstract: Polyurethane foams formed under vacuum (below atmospheric pressure) conditions using toluene diisocyanate or a specific mixture of polyisocyanates with a specific mixture of polyether and graft polyols produces a foam with lower density and better flame retardancy than latex foam, but with equally high resiliency. The foam-forming ingredients are mixed together and foamed under controlled pressures in the range 0.6 to 0.95 bar (absolute), preferably 0.8 to 0.95 bar (absolute). The resulting foam has a ball rebound above about 65 percent.

Abstract: Foaming a polyurethane foam at above atmospheric pressure conditions using a mixture of polyisocyanate and a specific mixture of low molecular weight (high OH number) polyether and graft polyols produces viscoelastic foams with high firmness, low energy losses and high temperature sensitivity such that firmness is reduced by at least 25% when the foam is heated from room temperature (e.g., about 70° F. (21° C.)) to 100° F. (38° C.). The foam-forming ingredients are mixed together and foamed at controlled pressures in the range 1.05 to 1.5 bar (absolute), preferably 1.1 to 1.3 bar (absolute).

Abstract: A hinged flexible polyurethane foam protective packaging element is formed from a flexible polyurethane foam laminated to a polyethylene, polypropylene or urethane film. The flexible polyurethane foam has a density in the range of 0.7 lbs/ft3 to 2.8 lbs/ft3 and IFD25 in the range of 25 lbs to 270 lbs. The film has a thickness from 2 mil to 125 mil. The foam is cut through all or substantially all of its thickness without cutting through a portion of the film. The uncut portion of the film creates a repeatably bendable hinge.

Abstract: A hinged flexible polyurethane foam protective packaging element is formed from a flexible polyurethane foam laminated to a polyethylene, polypropylene or urethane film. The flexible polyurethane foam has a density in the range of 0.7 lbs/ft3 to 2.8 lbs/ft3 and IFD25 in the range of 25 lbs to 270 lbs. The film has a thickness from 2 mil to 125 mil. The foam is cut through all or substantially all of its thickness without cutting through a portion of the film. The uncut portion of the film creates a repeatably bendable hinge.

Abstract: Polyurethane foams formed under vacuum (below atmospheric pressure) conditions using a specific mixture of polyisocyanate and with a major portion of methylene diisocyanate (MDI) and a specific mixture of polyether and graft polyols exhibit superb static shock cushioning characteristics (energy absorption) as illustrated by drop curves of deceleration versus static load. The foam-forming ingredients are mixed together and foamed under controlled pressures in the range 0.5 to 0.90 bar (absolute), preferably 0.5 to 0.8 bar (absolute). A major portion of the MDI is 4, 4′ methylene diisocyanate.

Abstract: Polyurethane foams formed under vacuum (below atmospheric pressure) conditions using methylene diisocyanate or a specific mixture of polyisocyanate and with a major portion of methylene diisocyanate (MDI) with a specific mixture of polyether and graft polyols produces cushioning foams with lower density (1.4 to 1.8 pounds per cubic foot) and higher support factor (above 2.4). The foam-forming ingredients are mixed together and foamed under controlled pressures in the range 0.5 to 0.9 bar (absolute), preferably 0.6 to 0.8 bar (absolute). A major portion of the MDI is 4,4′ methylene diisocyanate.