Abstract:
A laminate formed from a first fiber-reinforced ply joined by a laminating resin composition composition to a second fiber-reinforced ply. The laminating resin composition composition is the cured residue of a polyester resin being end-terminated with an alkyl acrylate group and diluted with less than about 35 wt-% styrene. The first fiber-reinforced ply is laminated to the second fiber-reinforced ply with the laminating resin composition by coating a surface of the first ply with an adhesive composition. The coated first ply surface is joined with a surface of the second ply and the adhesive cured. In making the laminating resin composition, unreacted alkyl acrylate can be reacted with an epoxy to push the reaction to completion.
Abstract:
This invention relates to a process for safely decontaminating the chill water used in meat processing. The decontaminant used in the process is chlorine dioxide.
Abstract:
The present invention provides a process for the preparation of low styrene content resins prepared by first reacting an unsaturated carboxylic acid, its corresponding anhydride or mixtures thereof with a monohydric alcohol, DCPD and water and reacting the product of the first step with a polyol and optionally an oil containing unsaturation, its corresponding fatty acid or mixtures thereof.
Abstract:
This invention relates to foundry binder systems, which will cure in the presence of sulfer dioxide and a free radical initiator, comprising (a) an epoxy resin; (b) an acrylate; (c) an alkyl silicate; and (d) an effective amount of a free radical initiator. The foundry binder systems are used for making foundry mixes. The foundry mixes are used to make foundry shapes (such as cores and molds) which are used to make metal castings, particularly ferrous castings.
Abstract:
An aqueous composition comprising ammonium hydroxide in an amount of about 1 to about 30 % by weight calculated as NH3 and a surface active agent represented by the formula XF2C (CFY)n SO3A wherein X=F, OH or SO3A; Y=F, H, OH or may be omitted thereby creating a double bond; n=1-12; A=NH4 , H , Na , K , Li , R or organic amine cation and R is 1-4 straight chain alkyl group; and wherein the fluoroalkyl group is a linear group; and wherein the surface active agent is present in an amount of about 5 ppm to about 2000 ppm is useful for cleaning photomasks and especially chromium photomasks.
Abstract translation:一种水性组合物,其包含按NH 3计算的约1至约30重量%的氢氧化铵和由式XF2C(CFY)n SO3A表示的表面活性剂,其中X = F,OH或SO 3 A; Y = F,H,OH或可以省略,从而产生双键; N = 1-12; A = NH 4 +,H +,Na +,K +,Li +,R +或有机胺阳离子,R为1-4直链烷基; 并且其中所述氟烷基是线性基团; 并且其中表面活性剂以约5ppm至约2000ppm的量存在可用于清洁光掩模,特别是铬光掩模。
Abstract:
A method and apparatus for measuring the flow rate of a fluid based on the fluid weight. A container (4) is supported on a weight device (6,8) for controlling the fluid weight within the container as determined by a fluid source (2), valve (1), weight device (6,8) weight switches (S1,S2) and a fluid removal system (non-referenced)
Abstract:
The present invention relates to composite roof structures and their preparation. The composite roof structure is prepared by applying a one-part, moisture curable, foaming, polyurethane adhesive composition to the roof deck, placing the roofing material in contact with the adhesive composition, and allowing the adhesive mixture to foam, fill, and cure. If multiple layers of the roofing material are used to form the composite roof structure, then the above procedure may be used to adhere each of the roofing material layers.
Abstract:
Hydrogen sulfide is produced by charging a sulfur containing feed to a molten metal bath containing over 3 wt.% dissolved carbon. Allowing dissolved carbon levels to build up in the bath, preferably by controlling oxygen addition to ensure a large inventory of dissolved carbon, creates a reducing "atmosphere" in the molten metal bath which allows most of the feed sulfur to be converted to H2S, which can be converted to elemental sulfur using a Claus unit or similar technology. Oxygen addition, to burn carbon from the bath, preferably occurs at a different time or place in the bath than the time or place of sulfur containing feed addition.
Abstract:
An improved "magnetic hook"-promoted catalytic process, catalyst and method of manufacture for heavy hydrocarbon conversion, optionally in the presence of nickel and vanadium on the catalyst and in the feed stock to produce lighter molecular weight fractions, including more gasoline, lower olefins and higher isobutane than normally produced. This process is based on the discovery that two "magnetic hook" elements, namely manganese and chromium, previously employed as magnetic enhancement agents to facilitate removal of old catalyst, or to selectively retain expansive catalysts, can also themselves function as selective cracking catalysts, particularly when operating on feeds containing significant amounts of nickel and vanadium, and especially where economics require operating with high nickel- and vanadium- contaminated and containing catalysts. Under such conditions, these promoted catalysts are more hydrogen and coke selective, have greater activity, and maintain that activity and superior selectivity in the presence of large amounts of contaminant metal, while also making more gasoline at a given conversion.
Abstract:
A binder for a mold or core prepared via a cold box process eliminates the use of organic solvents, the presence of free formaldehyde or phenol emanating from binders containing phenolic resins and prevents premature curing by the use of a binder comprising a polyol and an organic polyisocyanate. The binder is mixed with a foundry aggregate to form a foundry mix which is shaped into a mold or core in the presence of a gaseous tertiary amine catalyst. The mold or core is utilized in metal casting.