Difference between revisions of "Thiourea formaldehyde resin"
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== Description == | == Description == | ||
| − | An early type of polymer. Thiourea formaldehyde resins were patented in 1923 by Frits Pollack of British Cyanides Co. and later introduced as molding powders in 1928 under the brand names of Beetle and Beatl. These lightweight plastics were made | + | An early type of polymer. Thiourea formaldehyde resins were patented in 1923 by Frits Pollack of British Cyanides Co. and later introduced as molding powders in 1928 under the brand names of Beetle and Beatl. These lightweight plastics were made in pastel colors for inexpensive clock cases and radios. Beetle resins were not used for jewelry. These cellulose filled resins were soon superseded by [[urea formaldehyde resin|urea formaldehyde]] resins. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
Latest revision as of 13:17, 6 December 2020
Description
An early type of polymer. Thiourea formaldehyde resins were patented in 1923 by Frits Pollack of British Cyanides Co. and later introduced as molding powders in 1928 under the brand names of Beetle and Beatl. These lightweight plastics were made in pastel colors for inexpensive clock cases and radios. Beetle resins were not used for jewelry. These cellulose filled resins were soon superseded by urea formaldehyde resins.
Synonyms and Related Terms
urea resin; thiourea-formaldehyde resins;
Commercial Products: Beetle [American Cyanamid]; Beatl; Beetleware; Plaskon; Duroware; Hemocoware; Uralite
Risks
- Fading, cracking
- Susceptible to insects because of fillers
Resources and Citations
- Care and Identification of Objects Made from Plastic, Conserve O Gram 8/4, National Park Service, September 2010.
- Pam Hatchfield, Pollutants in the Museum Environment, Archetype Press, London, 2002
- Sharon Blank, An introduction to plastics and rubbers in collections, Studies in Conservation, 35, 53-63, 1990