Abstract: A polyurethane adhesive having a low gross heat of combustion is used to assemble insulation panels such as mineral wool insulation panels. The polyurethane adhesive contains a polyisocyanate side and a polyol side. The polyol side includes a certain polyether ether polyol and an aromatic polyester diol. The mixture of these polyols provides excellent adhesion together with suitably low viscosities, even at high filler levels, and a cured adhesive that has a low gross heat of combustion.

Abstract: The present invention discloses polyester-polyether polyols suitable for blending with other polyols or other materials mutually compatible with the polyester polyols to achieve polyurethane and polyisocyanurate products. In particular the present invention discloses polyester-polyether polyols produced by the reaction of: 1) phthalic anhydride with an alcohol having a nominal functionality of 3 and a molecular weight of 90 to 500 under conditions to form a phthalic anhydride half-ester; and 2) alkoxylating the half-ester formed in step 1 to form a polyester-polyether polyol having a hydroxyl number of from 200 to 350; with the proviso when the alcohol is a polyether polyol, the polyether polyol contains at least 70 weight percent of polyoxypropylene.

Abstract: Polyesters and polyol formulations comprising polyesters used in the preparation of polyisocyanurate rigid foams with improved green strength properties are provided. In some embodiments, a polyester which is the reaction product of (a) an aromatic component comprising 80 mole percent or greater of terephthalic acid, (b) at least one polyether polyol having a nominal functionality of 2, a molecular weight of 150 to 1,000 and a polyoxyethylene content of at least 70% by weight of the polyether polyol, (c) at least one glycol different than (b) having a nominal functionality of 2 and a molecular weight from 60 to 250, and (d) at least one polyol having a molecular weight of 60 to 250 and a nominal functionality of at least 3, wherein (a), (b), (c), and (d) are present in the reaction on a percent weight basis of 20 to 60 weight percent of (a), 20 to 50 weight percent of (b), 10 to 30 weight percent of (c), and 5 to 20 weight percent of (d) is provided.

Abstract: The present invention provides devices for safely closing an opening in tissue using suture. In one embodiment, the device includes an elongated main body constructed to permit visualization longitudinally through the main body from the proximal end to the distal end, the distal end defining a support surface to support the suture and protect distal body structures. A flange is connect to the main body adjacent the proximal end and projects laterally therefrom in first and second lateral directions. First and second guide holes extend longitudinally through the flange, and are structured to direct a suturing instrument longitudinally towards the support surface for passing the suture.

Abstract: Embodiments of the invention generally relate to polyols having resistance to hydrocarbons and articles made therefrom. More specifically, embodiments of the invention generally relate to hydrophilic polyester-polycarbonate polyols having resistance to hydrocarbons at high temperatures and articles made therefrom. The novel hydrophilic polyester-polycarbonate polyols described herein may be used in adhesive or elastomer applications requiring enhanced oil and/or diesel resistance. The disclosed polyols are liquid at room temperature, which facilitates processing into polyurethane products As described herein, an elastomer made from such hydrophilic polyester-polycarbonate polyols and methylene diphenyl diisocyanate (MDI) retained >90% of tensile strength after 500 hours ageing at 121 degrees Celsius. A comparative example made from a polyester polyol retained 50% of tensile strength under similar conditions.

Abstract: Disclosed are hydrophobic polyester-polycarbonate polyols which are the reaction product of (a) a polyester polyol and (b) one or more polycarbonate polyols. The polyester polyol (a) is the reaction product of: (i) one or more hydrophobic monomers, (ii) one or more organic acids, and (iii) one or more alcohols having an OH functionality of 2 or more. The polyester-polycarbonate polyols may be both amorphous and liquid at room temperature and have excellent hydrolytic stability. The hydrolytic and chemical performance of the polyester-polycarbonate polyols described herein is superior to that of commercially available hydrophobically modified polyester polyols and to that of commercially available polyester-polycarbonate polyols as described herein.

Abstract: A process for preparing a hybrid polyester-polyether polyol comprises contacting a carboxyl group-containing component and an epoxide, optionally in the presence of one or more of a double metal cyanide catalyst, a superacid catalyst, a metal salt of a superacid catalyst and/or a tertiary amine catalyst, under conditions such that a hybrid polyester-polyether polyol is formed. The hybrid polyester-polyether polyol offers the advantages of both ester and ether functionalities when used in a polyurethane formulation, thus enhancing physical properties. The process results in products having narrow polydispersity, a low acid number and unsaturation, and reduced byproduct formation, particularly when the double metal cyanide catalyst is employed.

Abstract: An obstruction detection system using a safety switch with a plurality of sensors is provided. The sensors include a sensing element molded in a casing and separated from an adjacent sensor by one of a plurality of connectors. A clip has a strip portion and a first attachment arm extending at an angle from the strip portion. A second attachment arm extends from the strip portion. A barb leg is disposed at an angle relative to the strip portion. The barb leg has a first leg end and a second leg end opposite the first leg end with the barb leg connected at the first leg end to the second attachment arm and the second leg end is disposed toward and spaced apart from the strip portion.

Abstract: Methods and compositions are provided for the preparation of insecticidal compositions.

Abstract: A medical device may include a sheet member having a first surface and a second surface to engage a surface of a body tissue. The medical device may include an incision guide extending along a length of the sheet member. First and second portions of the sheet member may be positioned on respective first and second sides of the incision guide. The sheet member may be severable along the incision guide to separate the first portion and the second portion from one another. A first magnetic member may be positioned on the first portion, and a second magnetic member may be positioned on the second portion. The first and second magnetic members may be attracted to one another to magnetically couple the first portion and the second portion to one another. The medical device may include an alignment mechanism for aligning the separated first and second portions with one another.

Abstract: An endotracheal tube assembly is disclosed. The endotracheal tube assembly includes an elongate tube having an outer wall, and a first connector disposed on the outer wall. The outer wall defines a generally cylindrical elongate central lumen therein, an elongate suction lumen therein, and a first suction lumen aperture therethrough, the first suction lumen aperture being in fluid communication with the elongate suction lumen. The first connector includes a first annular wall disposed within a second annular wall, where the first annular wall and the second annular wall extend away from a longitudinal axis of the elongate tube in a radial direction. An internal surface of the first annular wall defines a first flow passage, and a rim of the first annular wall defines a first connection aperture. The first connection aperture is in fluid communication with the elongate suction lumen through the first flow passage.

Abstract: The present invention provides an insecticidal fermentation broth of an actinomycete, where the fermentation broth contains an optimized ratio of active dunaimycins to inactive dunaimycins.

Abstract: The present invention is an aliphatic or cycloaliphatic isocyanate obtained form a process comprising the steps of reacting an aliphatic or cycloaliphatic primary amine, with phosgene in the presence of an inert solvent, wherein the initial reaction temperature is between 100 and 130° C. and the temperature is subsequently ramped to 150 to 180° C. during the course of the reaction, the solvent to amine weight ratio is 95:5 to 80:20, the total reaction pressure is maintained between 50 and 350 psig and the amine is rapidly dispersed in the phosgene through injection in a region of high efficiency mixing.

Abstract: The present invention provides in some embodiments, an endotracheal tube with subglottic secretion suction and a detachable suction line. The endotracheal tube is an elongate tube having an outer wall defining an elongate central lumen and an elongate suction lumen. An inflatable cuff is attached near a distal end of the elongate tube. The shoulder of the inflatable cuff is inverted in order to increase the diameter of the cuff from its distal end to its proximal end. The endotracheal tube also includes a connector to couple the suction lumen to a source of suction to remove subglottic secretions from the area above the cuff.

Abstract: The present invention discloses aromatic polyester polyols suitable for blending with other polyols or other materials mutually compatible with the polyester polyols to achieve polyurethane and polyisocyanurate products. In particular the present invention discloses polyester polyols comprising the reaction of: A) an aromatic component comprising 80 mole percent or greater of terephthalic acid; B) a polyether polyol having a nominal functionality greater than 2 and less than or equal to 4, a molecular weight of 250 to 1000 and has a polyoxypropylene content of at least 70% by weight of the polyol; and C) a glycol other than B having a molecular weight from 60 to 250; wherein A, B, and C are present in the reaction on a percent weight bases of 20 to 60 weight percent A); 15 to 70 weight percent of B); and 10 to 50 weight percent of C).

Abstract: The present invention is a process for aliphatic or cycloaliphatic isocyanate. The process comprises reacting an aliphatic or cycloaliphatic primary amine, with phosgene in the presence of an inert solvent wherein the initial reaction temperature is between 100 and 130° C. and the temperature is subsequently ramped to 150 to 180° C. during the course of the reaction, the solvent to amine weight ratio is 95:5 to 80:20, the total reaction pressure is maintained between 50 and 350 psig and the amine is rapidly dispersed in the phosgene through injection in a region of high efficiency mixing.

Abstract: A process for preparing a hybrid polyester-polyether polyol comprises contacting a carboxyl group-containing component and an epoxide, optionally in the presence of one or more of a double metal cyanide catalyst, a superacid catalyst, a metal salt of a superacid catalyst and/or a tertiary amine catalyst, under conditions such that a hybrid polyester-polyether polyol is formed. The hybrid polyester-polyether polyol offers the advantages of both ester and ether functionalities when used in a polyurethane formulation, thus enhancing physical properties. The process results in products having narrow polydispersity, a low acid number and unsaturation, and reduced byproduct formation, particularly when the double metal cyanide catalyst is employed.

Abstract: Clips for attaching sensors, cables, or other items to doors, such as retrofitted armored vehicle doors, are provided. In one example embodiment, a clip includes a strip portion, a first attachment arm extending from the strip portion, and a second attachment arm extending from the strip portion. A barb leg is disposed at an angle relative to the strip portion and includes a first leg end and a second leg end opposite the first leg end. The barb leg is connected at the first leg end to the second attachment arm, and the second leg end is disposed towards and spaced apart from the strip portion. A cable clamp extends from an end of the second attachment arm opposite the strip portion or an end of the strip portion opposite the first attachment arm.

Abstract: A water dissipation device for removing water vapor or moisture from a breathing circuit is provided, including an upper lid portion, an entry port and an exit port. An outer cover structure extends from the upper lid portion to define an enclosed volume. An inner frame extends from the upper lid portion inside the outer cover structure. The outer cover structure includes a first layer of water or moisture wicking material and a second layer of water vapor breathable medium, and has an inner surface area bounding an inner flow space such that water vapor or moisture can permeate from the inner flow space through the outer cover structure out of device. The device can include an inner cup structure extending from the upper lid portion into the enclosed volume to displace the enclosed volume and define and bound a portion of the inner flow space and compressible volume therein.