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- CR-39 abstract "CR-39, or allyl diglycol carbonate (ADC), is a plastic polymer commonly used in the manufacture of eyeglass lenses. The abbreviation stands for "Columbia Resin #39," because it was the 39th formula of a thermosetting plastic developed by the Columbia Resins project in 1940.The first commercial use of CR-39 monomer was to help create glass-reinforced plastic fuel tanks for the B-17 bomber aircraft in World War II, reducing weight and increasing range of the bomber. After the War, the Armorlite Lens Company in California is credited with manufacturing the first CR-39 eyeglass lenses in 1947. CR-39 plastic has an index of refraction of 1.498 and an Abbe number of 58. CR-39 is now a trade marked product of PPG Industries.An alternative use includes a purified version that is used to measure neutron radiation, a type of ionizing radiation, in neutron dosimetry.CR-39 should not be confused with polycarbonate, a tough homopolymer usually made from bisphenol A.".
- CR-39 thumbnail PADC_neu.svg?width=300.
- CR-39 wikiPageExternalLink search=%22cr-39%2059.3%22.
- CR-39 wikiPageID "3059400".
- CR-39 wikiPageRevisionID "580612352".
- CR-39 hasPhotoCollection CR-39.
- CR-39 subject Category:Optical_materials.
- CR-39 subject Category:Particle_detectors.
- CR-39 subject Category:Plastics.
- CR-39 subject Category:Polycarbonates.
- CR-39 subject Category:Polymers.
- CR-39 comment "CR-39, or allyl diglycol carbonate (ADC), is a plastic polymer commonly used in the manufacture of eyeglass lenses. The abbreviation stands for "Columbia Resin #39," because it was the 39th formula of a thermosetting plastic developed by the Columbia Resins project in 1940.The first commercial use of CR-39 monomer was to help create glass-reinforced plastic fuel tanks for the B-17 bomber aircraft in World War II, reducing weight and increasing range of the bomber.".
- CR-39 label "CR-39".
- CR-39 label "CR-39".
- CR-39 label "CR39".
- CR-39 label "Polyallyldiglycolcarbonat".
- CR-39 sameAs Polyallyldiglycolcarbonat.
- CR-39 sameAs CR39.
- CR-39 sameAs m.08nsk5.
- CR-39 sameAs Q409703.
- CR-39 sameAs Q409703.
- CR-39 wasDerivedFrom CR-39?oldid=580612352.
- CR-39 depiction PADC_neu.svg.
- CR-39 isPrimaryTopicOf CR-39.
