Low gloss

Cost is an important factor ia exterior house paiats which are desigaed with low gloss because this permits higher pigment loading especially ia high... 

Undercoats are invariably of high pigment content and low gloss. Their function is to provide a foundation that is uniform in both colour and texture for the finishing coats, thereby enhancing the final appearance of the completed system. On occasions, it is possible to achieve the same result by substituting an additional coat of finish for the undercoat, and this may improve the durability of the system. 

They are limited to transparent films and low gloss or satin white films. 

Other possible applications are clear coats in automotive interiors (dashboard instrument screen-printed and top coats for gloss control, interior vinyl clear coat with excellent mar resistance and low gloss, wood grain printing and top coats for interior laminates), on alloy wheels and wheel covers and under the hood parts, and UV curable paint over physical vapor deposition (PVD) surfaces of various parts. Other examples are ... 

Low gloss types are fabricated from bulk polymerization, since low gloss can be effected by a larger particle size of the polymer. 

Thermoplastics having a low gloss finish are useful in the manufacture of articles and components for a wide range of applications,... 

Low gloss additives have been described, such as epoxy resins. In addition, SAN copolymers are specifically useful. Suitable SAN copolymers have 75% styrene content. The low gloss additive gel is melt blended, with another resin, e.g., PC. 

J. Chen, T. Hoeks, and X. Yang, Low gloss thermoplastic composition, method of making, and articles formed therefrom, US Patent 7 563 846, assigned to Sabic Innovative Plastics IP B.V. (NL), July 21, 2009. 

Blends of PC, ABS, and MMBS are useful to form articles with good impact and low gloss. The articles produced are useful as automotive components, bottles, and tool housings. A mixture of randomly branched carbonate polymers and linear carbonate polymers has been suggested (19). MMBS acts also as a melt strength enhancing agent. 

M.-C.O. Chang, A.R. Padwa, C.-J. Chen, and D. Dufour, Weatherable resin compositions having low gloss appearances, US Patent 6 982 299, assigned to Lanxess Corporation (Pittsburgh, PA) and Bayer Aktienge-sellschaft (Leverkusen, DE), January 3, 2006. 

A full view of the black-anodized buckle and belt are shown in Fig. 5.28. The buckle is colored to insure that this tourniquet has low visibility. The dark anodizing not only provides a dark color with low gloss ( 5% at 60°) but also acts as a protective coating to inhibit corrosion and abrasive ware. Since a soldier often does not have the... 

MW and density affect the optical properties of LDPE. High MW molecules produce a rough, low gloss surface HDPEs contain more or larger crystalline areas that scatter light and cause a hazy appearance. 

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