Invented by Thomas G. Rukavina, Robert M. Hunia, Caroline S. Harris, Veronica L. Frain, PPG Industries Ohio Inc

The market for polyurethanes and articles, coatings, and methods for making them has witnessed significant growth in recent years. Polyurethanes are versatile polymers that find applications in various industries, including automotive, construction, furniture, and packaging. Their unique properties, such as high durability, flexibility, and resistance to chemicals and weathering, make them highly desirable for a wide range of applications. One of the key factors driving the market for polyurethanes is the growing demand for lightweight and energy-efficient materials. Polyurethanes offer excellent insulation properties, making them ideal for use in construction materials, such as insulation foams and panels. The construction industry, in particular, has witnessed a surge in demand for polyurethane-based products, as they help reduce energy consumption and carbon emissions. The automotive industry is another major consumer of polyurethanes. The lightweight nature of these polymers makes them suitable for manufacturing various automotive components, including seating, interior trims, and bumpers. Additionally, polyurethane coatings are widely used in the automotive sector for their excellent resistance to scratches, chemicals, and UV radiation, providing long-lasting protection to the vehicle’s surface. Furthermore, the furniture industry has also embraced polyurethane foams for their comfort, durability, and fire-resistant properties. Polyurethane foams are commonly used in mattresses, upholstery, and cushions, offering enhanced comfort and support to users. The demand for polyurethane-based furniture is expected to grow further as consumers increasingly prioritize comfort and longevity in their purchases. In terms of coatings, polyurethane-based paints and varnishes have gained popularity due to their excellent adhesion, durability, and resistance to abrasion. These coatings are extensively used in industries such as aerospace, marine, and industrial equipment manufacturing. Polyurethane coatings provide protection against corrosion, weathering, and chemical exposure, ensuring the longevity of the coated surfaces. The methods for making polyurethanes have also evolved over time, leading to improved efficiency and sustainability. Traditionally, polyurethanes were produced using a two-step process involving the reaction of isocyanates with polyols. However, advancements in technology have enabled the development of single-step or one-shot polyurethane production methods, reducing production time and costs. Additionally, there has been a growing emphasis on developing eco-friendly polyurethane materials. Manufacturers are increasingly using bio-based polyols derived from renewable sources, such as vegetable oils and biomass, instead of petroleum-based polyols. This shift towards sustainable materials aligns with the global push for reducing carbon footprint and promoting a circular economy. In conclusion, the market for polyurethanes and articles, coatings, and methods for making them is witnessing steady growth due to their versatile properties and wide-ranging applications. Industries such as construction, automotive, furniture, and coatings are driving the demand for polyurethane-based products. Moreover, advancements in production methods and the development of eco-friendly materials are further propelling the market forward. As technology continues to evolve, the future of polyurethanes looks promising, with increased focus on sustainability and innovation.

The PPG Industries Ohio Inc invention works as follows

The present invention provides polyurethanes that include a reaction products of components, including: (a), an isocyanate-functional urethane prepolymer comprising: (i), about 1 equivalent at least of one polyisocyanate, (ii), about 0.1 up to about 0.50 equivalents at least of one diol with 2 to18 carbon atoms (iii), (b), about 0.05 up to about 0.90 equivalents at least of one branched ure

Background for Polyurethanes and articles, coatings and methods for making them

I. “Field of the Invention

The present invention relates primarily to polyurethanes (and poly(ureaurethanes), prepared from polyols branched, polyisocyanates branched, polyisocyanate trimers, and articles and coatings made therefrom. It also relates to methods for making them.

II. “II.

Also polycarbonates typically are extruded which can cause optical distortions to the extrudate when viewed in the direction of the extrusion. Polycarbonates are often subjected to an extra processing step in order to remove distortions. This can lead up the cost for optical applications, such as canopies on fighter planes. Some polycarbonates can cause distortions in optical applications because they are birefringent. The Abbe number for LEXAN, for example, is 34. “Higher Abbe values are associated with better visual acuity, and less chromatic distortions.

There is therefore a need to develop polymers that can be used for the production of articles with good optical qualities, high impact resistances, high impact strengths, high K factors, good ballistic resistances, good solvent resistances, and good weatherability.” It is also desirable to be able to manufacture articles using reaction injection molding or casting rather than extrusion.

The following groupings are intended to facilitate discussion of various aspects and embodiments relating to polyurethanes, poly(ureaurethanes), and the present invention. The various aspects of the present invention have been grouped to facilitate discussion. However, this grouping is not meant to limit the scope and some aspects may also be relevant to other groups.

Group A

In some non-limiting embodiments of the invention, polyurethanes are provided that contain a reaction product from components including:

In other non-limiting embodiments of the invention, polyurethanes are provided that contain a reaction product consisting of components such as:

In some non-limiting embodiments of the invention, an article is provided that contains a polyurethane containing a reaction product from components including:

In some non-limiting embodiments of the invention, methods for preparing polyurethane are provided that include the step of reacting components in a single-potprocess.

In other non-limiting examples, the present invention offers methods for preparing polyurethane that include the following steps:

In some non-limiting embodiments of the invention, polyurethanes are provided that contain a reaction product from components including:

In some non-limiting embodiments of the invention, it provides methods for preparing polyurethanes by reaction components that include:

In some non-limiting embodiments of the invention, polyurethanes are provided that contain a reaction product from components including:

In some non-limiting embodiments of the invention, polyurethanes are provided that contain a reaction product from components including:

In some non-limiting embodiments of the invention, polyurethanes are provided that contain a reaction product consisting of components such as:

In some non-limiting embodiments of the invention, polyurethanes are provided that contain a reaction product from components including:

In other non-limiting embodiments of the invention, polyurethanes are provided that contain a reaction product consisting of components such as:

In some non-limiting embodiments of the invention, methods for preparing polyurethane are provided that include the step of reacting components in a single-potprocess.

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