Title: Irradiative degradation process of polyvinylbutyral
Application Number: 85102496 Application Date: 1985.04.01
Publication Number: 1001822 Publication Date: 1986.07.23
Approval Pub. Date: Granted Pub. Date: 1989.09.27
International Classifi-cation: C08F8/28,C08F8/50,C08J3/28
Applicant(s) Name: Tianjin Organic Chemical Experiment Factory Address:
Inventor(s) Name:
Attorney & Agent: ZHOU GYONGQUAN
Abstract:
     In order to get a series of polyvinylbutyrals with a wide range of mol. wt., it is necessary to prepare a solid high mol. wt. polyvinylbutyral by condensation of polyvinylalcohol dissolved in water with butyl aldehyde at room temperature. From the above mentioned product of high mol. wt., a series of polyvinylbutyrals with a wide range of lower mol. wt. is obtained by controlling the dosage of irradiation of beta or gamma rays on the said product.
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