news on november 17, 2023, according to the announcement of the state intellectual property office, kingfa technology co., ltd. has obtained a project called "a transparent pc/pbt alloy and its preparation method and application", the public number cn114921078b, patent application date is october 2022.
the patent abstract shows that the invention discloses a transparent pc/pbt alloy, which includes the following components by weight: 40 parts of pc resin; 25-35 parts of pbt resin; the transparent pc/pbt alloy has a thickness of 2 mm , transparency is greater than 60%, haze is less than 40%. the present invention uses various means to examine the weight average molecular weight range of pc resin and pbt resin in the transparent pc/pbt alloy after melting and blending, achieves high transparency under the condition of pc/pbt alloy with high pbt content, and solves the problem after the pbt content increases. technical difficulties that lead to a significant decrease in the transparency of pc resin.
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