The present invention relates to a sulfur-containing polyureaurethane and a method of preparing said polyureaurethane. The sulfur-containing polyureaurethane is adapted to have a refractive index of at least 1.57, an Abbe number of at least 32 and a density of less than 1.3 g/cm 3 , when at least partially cured.
申请公布号
EP2325234(A3)
申请公布日期
2011.06.22
申请号
EP20110001941
申请日期
2003.12.03
申请人
PPG INDUSTRIES OHIO, INC.
发明人
BOJKOVA, NINA V.;MCDONALD, WILLIAM H.;GRAHAM, MARVIN J.;OKOROAFOR, MICHAEL O.;RAO, CHANDRA BHUSHAN;SMITH, ROBERT A.;HEROLD, ROBERT D.;NAGPAL, VIDHU J.;YU, PHILLIP C.;SAWANT, SURESH
