摘要 |
A siloxane resin having the formula: (HSiO3/2)a(RSiO3/2)b(SiO4/2)c where R is Z, Z(CH2)n or ZO(CH2)n where Z is a phenyl or substituted phenyl group; n has a value of 1 to 6, a has value of 0.01 to 0.7, b has a value of 0.05 to 0.7, c has a value of 0.1 to 0.9 and a+b+c≈1. The siloxane resins are useful in anti-reflective coating compositions.
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