Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1995-06-06
1996-09-24
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
526324, C08F 238
Patent
active
055592007
ABSTRACT:
A transparent resin obtained by polymerizing styrene, a methacrylic or acrylic acid ester, a polyfunctional monomer, and if necessary a copolymerizable vinyl monomer in the presence of a molecular weight modifier is suitable for producing a polymer lens having a low specific gravity, and excellent in transparency, edging ability with other good properties.
REFERENCES:
patent: 5026807 (1991-06-01), Ohira et al.
patent: 5059667 (1991-10-01), Nakamura
patent: 5132384 (1992-07-01), Matsuda et al.
JP 62 (1987)-232414 "Cast Moldable Optical Resin Material" by Sugawara.
Kanega Fumiaki
Kawai Hiromasa
Sasaki Akihiro
Suzuki Minoru
Hitachi Chemical Company Ltd.
Sarafim N.
Schofer Joseph L.
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