The present invention relates to a sulfur-containing polyureaurethane and a method of preparing said polyureaurethane. In an embodiment, the sulfur- containing polyureaurethane 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 grams/cm3 , when at least partially cured.
申请公布号
CA2500379(A1)
申请公布日期
2004.07.22
申请号
CA20032500379
申请日期
2003.12.03
申请人
PPG INDUSTRIES OHIO, INC.
发明人
NAGPAL, VIDHU J.;OKOROAFOR, MICHAEL O.;YU, PHILLIP C.;SAWANT, SURESH;RAO, CHANDRA;GRAHAM, MARVIN J.;HEROLD, ROBERT D.;MCDONALD, WILLIAM H.;SMITH, ROBERT A.;BOJKOVA, NINA
