Polsinelli PC
Interlayer film and laminated glass comprising the same
The present disclosure relates to an interlayer film for laminated glass comprising: (a) polyvinyl butyral (PVB) resin having an average molecular weight (Mw) as measured by Gel Permeation Chromatography (GPC) from about 175,000 to about 210,000 Dalton; and (b) about 30 to about 50 parts per hundred (pph) of a plasticizer. The interlayer film interposed between two glass sheets forms laminated glass having a pummel adhesion value that is greater in an outer area of the laminated glass than in a middle area of the laminated glass after the laminated glass has been maintained at 50° C. and 95% relative humidity (RH) for 28 days. The laminated glass exhibits improved durability and does not delaminate over time, even in the presence of high temperature and humidity conditions.
CHANG CHUN PETROCHEMICAL CO., LTD.
B C C B C C C C C C C
B32B C08K C08J B32B C08K C08K C08K C08K C08J C08F C08K
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Chin-Yen Cheng-Fan
Chang Wang