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The Woman Who Quieted New York's Subways with Cotton, Sand and Sealant

Posted By ASC, Tuesday, February 5, 2019

Built in the 1870s, New York City's elevated railway had a significant problem - the sound of the trains running along the tracks was so unbearably loud that New Yorkers couldn't live near the tracks. Realizing they needed a solution - quickly - the city government commissioned several scientists, including Thomas Edison, to invent a noise dampening system.

Unfortunately, none of the scientists could figure out a solution. Even Edison, who spent six months working on the project, could not develop a noise dampening system. Finally, frustrated with the noise levels and lack of progress, Mary Walton, who owned a boarding house on 12th Street and 6th Avenue next to one of the train tracks, set to work finding her own solution.

After building a model railroad in her basement to experiment with ways to muffle the excessive sound, Walton realized the noise problem came from the wooden rail ties. She created a cotton- and sand-filled box that fit between pairs of ties and was sealed in place with tar. After being granted patent #327,422 in February 1881 for her solution, she sold her patent to the New York City Metropolitan Railroad for $10,000 and royalties. The system was such a success that it was quickly used by other railroad companies across the country.

Walton was considered a hero, especially for women, as the male engineers and inventors hired by the government hadn’t been able to solve the problem. Unfortunately, even with Walton’s sound dampening boxes, the elevated trains were still louder than the underground subways. As time passed, they became outdated and increasingly unsafe. The trains eventually stopped running in the 1930s as infrastructure improvements became more expensive and real estate developers campaigned for their removal to replace the tracks with more desirable (and expensive) properties. Manhattan reverted to the underground subway system still in use today, though a few subway lines in the city’s other boroughs still run on elevated tracks.

 

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Diisocyanates: The Chemical Behind Polyurethane and its Many Uses

Posted By ASC, Thursday, January 31, 2019

Polyurethane is ubiquitous in today’s world. Soft foams, hard foams, coatings, elastomers, sealants, appliances, apparel and more are based on these chemical building blocks, and they are the basis of the polyurethane adhesives that go into the manufacture of an even longer list of everyday products.

Polyurethane materials are almost everywhere to be found in homes, but also automobiles, and include everything from automobile coatings to headrests, upholstery, and insulation. Seals, bonds, and durable finishes all depend on the products we can produce from this group of chemicals.

The American Chemistry Association points out just how much we rely on Diisocyanates for the things we take for granted every day. The reason why they are so widely used is simple. These chemical building blocks react with a wide variety of other chemicals resulting in the massive range of polyurethane materials we encounter. During processing, Diisocyanates must be handled with caution, but the chemical reactions they undergo means that the chemical is changed, becoming harmless in its final polyurethane format.

 

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Henkel's New General Purpose Structural Adhesive Put to Extreme Test – Towing a Freight Train

Posted By ASC, Wednesday, January 30, 2019
Updated: Tuesday, January 29, 2019

Henkel reports that its new structural adhesives make “limitless design” possible. Structural adhesives may not be the design features we see, but they make many of them possible.

To show just what its general purpose structural adhesives are capable of, Henkel staged a dramatic demonstration. Using just three grams of adhesive, technicians bonded together two metal plates that coupled a locomotive to a freight train – a load of 208 tons. The branded locomotive then proceeded to tow the load, with the bond tolerating additional stresses such as those incurred when negotiating bends.

The company says that its structural adhesives are low hazard structural adhesives that allow for high performance bonding between a wide variety of substrates even when the substrates to be bonded are dissimilar. The company offers a consulting service to assist its clients in choosing an adhesive that has been engineered to fulfill their requirements.

 

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Adhesives.org BLOG: W Ratings for Firestop Continued – Usefulness, Testing, Limitations

Posted By ASC, Tuesday, January 29, 2019

Our last post talked about how W ratings for firestop floor penetrations came about, how they are tested and we talked a little bit about what they can and can’t be expected to do.

Today, I am going to tell you a few stories of things I have seen in the field that supports the idea of using W rated firestop in spite of the apparent weaknesses from a testing perspective. First however let me explain a little bit more.

Silicone firestop materials are the most common material used for achieving  W-rating, but some manufacturers are testing new materials that are still able to achieve the W rating without the use of silicone materials.

One of the benefits of silicone is that some of it can be self-leveling. This can be an advantage over traditional materials. Traditional materials need to be troweled into place to ensure a seal between both the penetrating item as well as the floor the penetrations are running through.  Self-leveling materials can be an advantage because they can be installed without the necessary troweling. A good installer can actually save enough money to more than defer the cost of the more expensive silicone material.

 

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FOR IMMEDIATE RELEASE: ASC Welcomes Martha Mittelstaedt

Posted By ASC, Tuesday, January 22, 2019
Updated: Monday, January 21, 2019

FOR IMMEDIATE RELEASE

 

Media Contact:

William Allmond

President
(301) 986-9700 x1111
bill.allmond@ascouncil.org


  

 

ASC WELCOMES MARTHA MITTELSTAEDT AS SENIOR MANAGER
OF TECHNICAL SERVICES  



January 21, 2019 – Alexandria, VA – The Adhesive and Sealant Council (ASC) announced today that Martha Mittelstaedt has been hired as Senior Manager, Technical Services.


“We are very pleased to welcome Martha to the ASC team and draw from her extensive industry knowledge and expertise,” said ASC President Bill Allmond. “She brings much-needed support to ASC’s technical services offerings, which are ever-increasing in number and demand,” he said. “Aligning our resources with the needs of the membership is vitally important, and bringing Martha onboard significantly improves our positioning toward that alignment.”


Prior to joining the ASC team this month, Martha worked at Illinois Tool Works (ITW), an ASC member company, for 16 years. In her prior position as Applications Manager at ITW, she led and managed the marketability, introduction and improvement of new and existing products and applications, including quality, testing, technical data and training. During her time at ITW, Martha participated on ASC’s Technical Committee and participated in ASC programs and events.


Mittelstaedt’s responsibilities as Senior Manager, Technical Services, include managing key aspects of ASC’s Training Academy, Short Course, and Convention programming as well as providing outreach and marketing support for ASC’s Certificate Program.

 

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The Adhesive and Sealant Council (ASC) is a North American trade association dedicated to representing the adhesive and sealant industry. The Council is comprised of 117 adhesive and sealant manufacturers, raw material and equipment suppliers, distributors and industry consultants, representing more than 75% of the U.S. industry with operations around the world. Offering education, legislative advocacy, professional networking and business growth solutions for its members, the ASC is the center of knowledge and catalyst for industry growth on a global basis for manufacturers, suppliers and end-users. For more information about ASC, visit www.ascouncil.org.

 

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Medical Adhesive Uses UV Light to Painlessly Remove Bandages and Tape from Patients

Posted By ASC, Tuesday, January 22, 2019
Updated: Thursday, January 17, 2019
The age old debate to slowly peel off a bandage or just rip it off in one quick motion has been the subject of strong opinion. Now, thanks to adhesive researchers in the US and China, there may be a way to painlessly remove bandages and tape from our skin using UV light. Researchers have devised a new type of adhesive that can stick to surfaces strongly, including moist surfaces, and yet be detached easily by exposing it to specific frequencies of light.

The research was directed by Zhigang Suo, a professor of mechanics and materials at the John A Paulsen School of Engineering and Applied Sciences (SEAS) at Harvard University, along with researchers from Xi’an Jiaotong University in China. 

Suo referred to his team’s discovery as “molecular sutures”. It occupies a middle ground between adhesion through covalent bonds, which would be permanent and is sometimes used to stick materials together in industry, and sticking through physical interactions, which is how current sticking plasters work. This sort of adhesive requires removal using solvents or simple brute force, leading to the familiar ouch of traditional bandage removal. Molecular sutures work through a phenomenon known as topological entanglement, where polymer chains form a network between two pre-existing polymer networks: in this case, the substrate of whatever material needs to be stuck to the skin, and the surface of skin itself.
 

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New Flame-retardant Structural Adhesive from Delo for Aircraft Interiors

Posted By ASC, Thursday, January 17, 2019

The aviation industry relies heavily on lightweight design and optimum structural strength. Delo has developed a new, two-component epoxy resin for lightweight structural joints, focusing on fast build-up of strength.


The company reports that the adhesive cures at room temperature, but has been optimized for temperature-accelerated curing. At a temperature of 60°C, a curing time of 15 minutes is sufficient to achieve functional strength (>= 10 MPa). Components can be further processed after this short time, which significantly speeds up production processes.


The adhesive is multi-purpose, including coating or bonding of insert fasteners. With its beige-yellowish color, it has been visually adapted to honeycomb sandwich panels, which are frequently used in the production of aircraft.


Additionally, Delo says that its Automix dispensing system allows the adhesive to be processed just like a one-component product, with its thixotropic properties ensuring excellent flow behavior. When the shear stress stops at the end of the dispensing process, viscosity will increase again, preventing the adhesive from flowing out.

 

 

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Adhesives.org BLOG: Edible Adhesives - It's Time for a New Innovation

Posted By ASC, Wednesday, January 16, 2019

With the increase in dietary concerns, there is a need for a new edible material which can be used for adhering spices to foods, particularly snack foods, which is easy to apply, keeps the spice adhered to the food product, provides a desirable oily-type appearance without introducing extraneous tastes, colors, odors or undesirable visual effects to the coated product.

Natural organic adhesives have been around for a long time. These are easy to obtain, relatively inexpensive, easy to apply and are known to have a base of sugar, starch or dextrin, mainly used in paste paper products. Several of these can be edible, especially the majority of sugar-based glue. Starch based glues are generally derived from the cooking of seeds with a high starch content (as for example oats, rice, etc.) in water, often in the presence of acid or base to obtain a paste of varying viscosities. When aqueous acids are used at around 50⁰C, the formed pulp is neutralized with a base. In the basic treatment, the starch is heated in an alkaline solution in combination with additives such as borax.

An improved adhesive formulation comprising a bonding agent (including lipids, medium chain triglyceride oils, emulsifiers and mixtures thereof) and a powdered ingredient (including edible acid, edible base, vitamins, minerals, etc.) has been described.

Edible adhesive coatings for multi-component food products, where one of the functions for the edible adhesive coating is to facilitate adhesion of particulate components, such as grains or granola pieces, to a base component, such as a food-based center has also been investigated. The adhesive coating composition contains a source of edible fat (e.g. chocolate), a hygroscopic food powder such as...

 

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FOR IMMEDIATE RELEASE: ASC Announces New Board Officers, Elects New Members

Posted By ASC, Friday, January 11, 2019

FOR IMMEDIATE RELEASE

 

Media Contact:

William Allmond

President
(301) 986-9700 x1111
bill.allmond@ascouncil.org


  

 

ASC ANNOUNCES NEW BOARD OFFICERS, ELECTS NEW MEMBERS  



January 11, 2019 – Alexandria, VA – The Adhesive and Sealant Council (ASC) announced changes to its Board of Directors, including new officers for 2019-2020 and new and reelected members for a three-year term ending December 31, 2021.

ASC’s newly-elected officers are:

  • Brian McSwigan, Vice President, Pressure Sensitive Adhesives at Henkel Corporation. Brian has been elected to serve as Chairman of the Board through December 31, 2020. He will also lead the ASC Executive Committee. McSwigan previously served as ASC Treasurer for two years.
  • Matt Devine, President of DHM Adhesives. Matt has been elected to serve as Treasurer through December 31, 2020. He will also lead the Audit Committee and serve on the ASC Executive Committee.

 

Charles Williams, Senior Global Technical Director at Avery Dennison, will serve as Past Chair for two years.

 


New members of the ASC Board, elected to serve a three-year term, include the following:

  • Robert Butera, Vice President of Research, Development, and Innovation at DAP Products; and
  • Dan Horner, CEO of Applied Adhesives.

 

Reelected members of the ASC Board also serving a three year term are as follows:

  • Heather Campe, Senior Vice President, Americas Adhesives, H.B. Fuller Company;
  • Gerhard Haas, Vice President, Research & Development, Technical Service, and Purchasing, Jowat Corporation;
  • Joseph Koch, Director of Structural Adhesives, 3M Corporation;
  • Guil Silva, Vice President & General Manager, ITW Performance Polymers; and
  • Rusty Thompson, President, Evans Adhesive Corporation.

 

Darius Deak, Global R&D Director for Industrial Adhesives at Bostik, was elected by the Board in October 2018 to serve the remaining term of Robert Wanat, ending December 31, 2020.


“The newly elected ASC Board officers and directors strengthen our organization’s leadership during a time of record participation and growth in ASC’s programs and events,” said ASC President William Allmond. “Led by Brian McSwigan, they have a strategic focus on maximizing ASC’s value proposition for each member company,” he said. “During their terms, they will guide new initiatives that expand ASC’s role as a solution provider and help position ASC as a global leader by hosting the World Adhesive and Sealant Conference in April 2020.”

 

 

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The Adhesive and Sealant Council (ASC) is a North American trade association dedicated to representing the adhesive and sealant industry. The Council is comprised of 117 adhesive and sealant manufacturers, raw material and equipment suppliers, distributors and industry consultants, representing more than 75% of the U.S. industry with operations around the world. Offering education, legislative advocacy, professional networking and business growth solutions for its members, the ASC is the center of knowledge and catalyst for industry growth on a global basis for manufacturers, suppliers and end-users. For more information about ASC, visit www.ascouncil.org.

 

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High Tack Box Sealing Tape is Helping Businesses Use Boxes with High Recycled Content

Posted By ASC, Tuesday, January 8, 2019

With the environmental problems caused by waste gaining a lot of attention, most companies would like to do their bit by using more sustainable packaging. But until recently, there was a problem inherent in choosing cardboard cartons that contained a lot of recycled content. The individual fibers of which the cardboard is composed are flatter in recycled material, and that makes it difficult for adhesive tape to stick to the boxes.


According to 3M, the solution is pressure sensitive synthetic rubber adhesive that penetrates into the fibers to form a bond. According to the company, its product outperformed competitors in a peel test that rated tapes’ tackiness according to how much fiber comes away when the tape is peeled away. The tape’s backing adhesive maintains its properties at temperatures as low as -1.1C (30F).

 

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