Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1986-01-21
1986-11-11
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
2642902, C08F 2020
Patent
active
046223770
ABSTRACT:
A plastic transparency, and method for making it, that is the polymerization product of at least 97.5 mole percent of a monofunctional, vinyl monomer, of which at least 70 percent and preferably 100 percent is methyl methacrylate, and up to 2.5 mole percent neopentylene glycol dimethacrylate. The transparency exhibits significantly reduced optical hazing in an acidic environment, making it particularly suitable for use as an aircraft transparency.
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A Comparison of "Stretched" and Pressed Acrylic Materials from Various Sources, by K. B. Armstrong, British Airways, pp. 459-531.
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SR-248, 2,2-Dimethyl Propane Dimethacrylate, by Sartomer Company, Division of Sartomer Industries, Inc., West Chester, Pennsylvania.
Michl Paul R.
Swedlow, Inc.
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