发明授权
US3998792A Polyvinyl butyral polymer mixture for making intermediate sheeting for laminated glass 失效
用于制造层压玻璃中间层的聚乙烯丁基聚合物混合物

Polyvinyl butyral polymer mixture for making intermediate sheeting for
laminated glass
摘要:
Mixtures of two distinct polyvinyl butyral grades, viz., one high viscosity and one low viscosity grade, both having a narrow molecular weight distribution exhibit good processing characteristics which nearly reach the performance of the high viscosity grades hitherto used.
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