Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1982-02-18
1983-10-11
Briggs, Sr., Wilbert J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525146, 525148, C08L 6900
Patent
active
044093632
ABSTRACT:
The invention relates to a process for the manufacture of a mixture of a polycarbonate and a styrene-containing polymer whereby the polycarbonate present in solution is initially brought into contact with a precipitating agent. The solvent and the precipitating agent are subsequently separated from the precipitated solid material to prepare a polycarbonate having residual moisture of more than 1 and less than 50 percent by weight relative to the polycarbonate, and where the resultant product with a residual moisture is mixed with the styrene-containing polymer at temperatures above the softening range of the components removing volatile components. The claimed mixtures are suitable for the manufacture of molded parts for cars, bottles and appliances.
REFERENCES:
patent: 3988390 (1976-10-01), Prinz et al.
patent: 4239861 (1980-12-01), Braese et al.
Brandstetter Franz
Haaf Franz
BASF - Aktiengesellschaft
Briggs Sr. Wilbert J.
Lisicki Norbert M.
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