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Elution of bisphenol A (BPA), chlorinated BPAs (i.e., 3-chlorobisphenol A, sum of 3,5-dichlorobisphenol A and 3,3'-dichlorobisphenol A, 3,3',5-trichlorobisphenol A, and 3,3',5,5'-tetrachlorobisphenol A) and 2,4,6-trichlorophenol (TCP) from lined pipes coated with two epoxy resins were investigated in a 24-month continuous test passing tap water. BPA, chlorinated BPAs, and TCP were not detected in the tap water at the outlet of lined pipes in most cases. However, all of these chemicals were detected in the tap water after 16 h of retention. The sums of BPA and chlorinated BPAs in the retained tap water were usually high when the residual chlorine levels were low. The residual chlorine was related to temperature, residual chlorine in the tap water at the inlet of lined pipes, and the elapsed time. From the results of leach tests, it was indicated that no marked changes in BPA concentration over the 24 months of the continuous test. Chlorinated BPAs and TCP were accumulated on the surface of lined pipes during the continuous test. [ABSTRACT FROM AUTHOR]

Background: Few US studies have reported results of patch testing with plastics and glues. Objective: To report our institution's results of testing patients suspected of allergy to plastics and glues with a comprehensive plastics and glues series and to compare these results with previously published data. Methods: Retrospective review of results of patch-testing with plastics and glues allergens at our institution between 2000 and 2007. In total, 444 patients were patch-tested with up to 56 plastics and glues allergens in the specialized series and up to five plastics and glues allergens in a baseline series. Positive-reaction rates were compared to other patch testing reports. Results: Of patients, 97 (22%) had irritant reactions, and 201 (45%) had at least one allergic reaction. Bis(2-dimethylaminoethyl) ether 1%, benzoyl peroxide 1%, epoxy resin, bisphenol F 0.25%, 2-hydroxyethyl methacrylate 2%, and 2-hydroxyethyl acrylate 0.1% had the highest allergy reaction rates. Testing with specialized series identified 193 patients with plastics and glues allergy, of whom 162 were not identified by testing with baseline series alone. Conclusion: For patients suspected of allergy to plastics and glues, patch-testing with specialized series of plastics and glues allergens is an important adjunct to patch-testing with baseline series. [ABSTRACT FROM AUTHOR]

The article explores the hazards of bisphenol A (BPA) especially to children. BPA is a synthetic industrial chemical used in polycarbonate plastic and epoxy resins. Such chemical is mostly used in infant bottles, bicycle helmets and protective epoxy-resin linings. According to a National Toxicology Program report released in April 2008, BPA causes health risks to infants and children. Research scientists claim that BPA is a reproductive, developmental and neural toxicant.

The article focuses on the development of a new material for protecting soldiers, aircrafts and spacecrafts in the U.S. The material was created by researchers at the Institute for Soldier Nanotechnologies. The material can be used to prepare lightweight armor for soldiers. The researchers used a light-sensitive epoxy resin mixed with an organic solvent for preparing the material.

The article offers information on a study conducted by CVC Thermoset Specialties of the U.S. regarding the structure/property relationship of compatible liquid modifiers. It examines the effects of the variation in modifier molecular weight, backbone composition and end-group functionality on the modifier, formulation, and toughness properties of the cured epoxy. The results have shown the advantages of the modifiers in performance properties.

Focuses on the paints and coatings industry in the United States. Impact of regulations in spurring advances in the industry; Switch to environmental friendly technologies; Waterborne polyurethane systems developed by Bayer; Trend of mergers and consolidations; Effect of increase in raw material costs on epoxy resin makers.

This article recalls how General Dynamics Armament and Technical Products (GDATP), in partnership with McDonnell Douglas, came to design an external fuel tank that meet the standards of the U.S. Navy and Air Force in the 1970s. It relates the successful demonstration of the capability of composites as an outer-skin material in a hybrid tank. It also details the investigation of the possibility of an all-composite external tank for the F/A-18 aircraft by GDATP and McDonnell Douglas in the 1980s. It describes the epoxy resin system developed by GDATP.

The article presents abstracts of U.S. polymer-related patents. They include "Epoxy-Resin Systems, Which Are Resistant to Aging, Molding Materials, Components Produced Therefrom and the Use Thereof," "Polypropylene Having a High Maleic Anhydride Content," "Impact Strength Improvement of Regrind," and "Valve Gated Nozzle Having a Valve Pin With a Sensor."

Describes the epoxy and aggregate overlay on the Wolf River Bridge near Crandon, Wisconsin, designed to minimize the usage of deicing chemicals while making winter driving safer. Statement from project manager Russ Alger about the overlay; Advantage of the overlay.

Looking ahead, sources expect downward pressure to remain in February, although the magnitude is unclear [ABSTRACT FROM AUTHOR]

The article reports on the decline in the U.S. epoxy resins market in December 2018.

The article focuses on the business conditions of US epoxy markets. It mentions the issues relating to the gap between liquid and solid epoxy prices. It also mentions the chances to decline the demand for solid epoxy from the oil and gas sector along with the role of volatile political environment in chemical sector in Asia.

The article highlights how a balanced U.S. epoxy resin market has kept prices steady in September 2018 despite an increase initiative. Topics discussed include equilibrium in epoxy resin contracts after three months of decreases as supply and demand; liquid epoxy resin contract price; tighten supplies for epoxy resin.

The article reports that tight supply is anticipated of U.S. domestic phenol as producers are looking to increase volumes into the export market due to better margins there. As reported, domestic demand for phenol is holding steady or increasing slightly in most sectors. Meanwhile, demand for epoxy resins and phenolic resins is still reported to be strong.

The article offers information on the chemical industry in the U.S., focusing on the increase in epoxy resin contract prices as of March 2, 2018. Topics discussed include the supply and high import prices of epoxy resin into the U.S.; the pressure placed on February contracts by spot import prices; and the costs of feedstock bisphenol A (BPA) and epichlorohydrin (ECH).

Introduces the Tough Coat Rebar Green Epoxy from Krylon Industrial available in the U.S. Key features; Information on the aerosol paints from the Krylon Industrial Tough Coat brand; Commercial products offered by Krylon Products Group.

Features the New Orleans, Louisiana-based 1st Line Composites Inc. Business owner Rick Sinclair; Focus on the production of high-string epoxy products; Joint partnership with Ciba-Geigy Corp.; Plans for an international expansion.

The article reports on possible price relief for commodity resins in the U.S. market by the second quarter of 2012. Several factors that drove the prices of four major commodity thermoplastics during the first quarter of 2012 include feedstock cost increases and tighter supply/demand due to lengthy planned maintenance outages. In March 2012, the price of polyethylene (PE) increased to three cents per pound.

The article offers updates from the U.S. chemical industry. As stated, European April monoethylene glycol (MEG) contract was finalized at a price less by 29 euros per tonne. According to a buyer at the National Petrochemical Refiners Association (NPRA) meeting in San Antonio, Texas the U.S. propylene contracts are slated to achieve only half the prices nominated by producers. European epoxy resin contracts for April, 2010 increased by euros per tonne due to low upstream availability.

The article reports that on January 15, 2010, the U.S. Food and Drug Administration (FDA) issued a statement regarding the agency's position on the use and safety of Bisphenol-A (BPA) in food contact materials. BPA is a chemical that is used in making hard plastic polycarbonate bottles, such as reusable water bottles and baby bottles, and is also found in an epoxy resin that is used as a protective lining on the inside of metal-based food and beverage cans.

The article provides information on aspects related to epoxy resins' producers in U.S. and nominations from Hexion and Olin producers. Topics discussed include dominancy of crude oil over benzene and feedstock costs, status of domestic sellers on oilfield resin activities, and analysis of contract prices.

The article reports that contract prices for U.S. epoxy resin remained flat as of August 23, 2016. It notes that pricing on delivered in bulk basis were assessed at 1.11 to 1.15 dollars per pound with buyers hoping for continued balance between supply and higher feedstock costs since July 2016. It also cites concerns by producers that prices for cumene, phenol/acetone or bisphenol A have not dropped due to increased prices for benzene and propylene.

The article focuses on recent changes in the price of chemicals across the world. Asian vinyl chloride monomer (VCM) for August 2009 arrival has been sold 10-20 dollars/tonne above prices achieved in July 2009. Distributors in the U.S. say that ethyl acetate prices climbed for the first time in 2009 in the third quarter, rising by around 4 cents/lb. European liquid epoxy resin (LER) prices rose by 50 euros/tonne at the low end of the range in August 2009.

The article focuses on a project to repair the Fort Drum Aircraft Hangar 2060 in Watertown, New York with an emphasis on lining an aqueous film-forming foam (AFFF) fire-suppression deluge system and distribution piping. Nu Flow America was contacted by the U.S. Army Corps of Engineers for the project. Project manager Dennis Fort mentioned the procedures to use which include cleaning of sprinkler heads, sandblasting of pipes and the use of epoxy. Among the challenges of the project were below freezing temperatures and scheduling of fire watches.

The article reports on the passiveness of the chemical industry over the issue of the removal of the bisphenol A (BPA) from food can liners despite the harm it brings to human health. Material analyst Alex Millar dictates that the industry is not keen to remove the BPA-containing can liners since BPA is a $6 billion global industry and that there is no slated alternative for its use. Meanwhile, BPA defenders assert that cans lined with epoxy do not have a negative effect on public health.

The article offers information on the chemical, Bisphenol A. This chemical is used for polycarbonate resins, epoxy resins and flame retardants. The largest market for bisphenol A is PC resins, which account for 75 percent of U.S. demand. As of mid-2007, its supply was relatively tight because of a shortage of its raw material, phenol and increased demand from PC and epoxy resins.

Focuses on the revolution leading to new and unprecedented use of composites in commercial aircraft in the U.S. Suppliers of composite materials, such as high-end carbon fiber and epoxy resins; Importance of carbon fibers which are usually polyacrylonitrile fibers treated under intense heat; Preparation of composite materials for aerospace business.

Presents tables of market prices of different plastic materials and resins in the United States as of mid-January 2001. Acetal; Epoxy; Phenolic mold compounds; Liquid crystal polymers; Fluoropolymers.

The article reports that the U.S. spot epoxy resin prices fell by 44 dollars/tonne on August 25, 2015. The U.S. buyers and traders reported offer levels for material from Asia as low at 1.13 dollars/lb on a delivered basis into the U.S. The loss of the Chinese market has made the Asian sellers to look for volumes into Latin America.

The article reports that the February 2015 epoxy resin contracts in the U.S. have settled lower due to an increase in import volumes. Topics discussed include the average prices of epoxy resins, the flat domestic demand for the chemical, and the major producers of epoxy resins in the U.S. which include Dow Chemical, Huntsman and Hexion.

Reports that Dow Chemical Co. is in the process of constructing additional production facilities in Freeport, Texas, for its liquid epoxy resin and epichlorohydrin products. Epoxy resin and epichlorohydrin production capacity of the company after the completion of its production facilities; Reason behind Dow Chemical's decision to expand its production capacity.

The article discusses U.S. prices for epoxy resin contracts in May, 2014. Although some say producers sought to lower prices by $0.02 per pound to preserve market share, one unnamed producer said the reduction was $0.01 per pound at most. U.S. producers including Huntsman and Dow Chemical are said to face strong competition from Asian firms.

The article reports on the increase in spot prices of U.S. epoxy resin as of January 28, 2014. Topics discussed include the increased in offer levels of overseas sellers, the increased in imports starting January 2014 and the increase in spot prices expected to offer some strength to efforts by U.S. producers to push through their February 2014 contract nominations.

The article focuses on U.S. epoxy resin contract prices in January 2014. Topics discussed include high producer inventories, aggressive selling methods of overseas producers, and weaker-than-expected demand and sales for the majority of 2013. Also mentioned are the impact of rising feedstock costs, inventory levels of several buyers, and the production of epoxy resins by chemical companies such as Huntsman, Dow Chemical, and Momentive.

The article presents information on the competition between domestic and overseas producers in the U.S. epoxy resins market, according to industry sources on September 24, 2013. The competition has resulted to increase in prices to nearly break-even levels. Domestic producers have offered prices well above those offered by importers, owing to higher U.S. costs for feedstocks benzene and propylene.