Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1997-03-14
1999-11-09
Dawson, Robert
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524500, 524765, 524770, 525146, 525216, 525218, 525316, C08J 311
Patent
active
059816449
ABSTRACT:
A method of producing ABS moulding compositions wherein a solution of polymers in group (A) solvents is gradually supplied to a polymerizing mixture of previously-formed soluble rubber, aromatic mono-alkenyl compounds, ethylenically unsaturated nitrites, optional other copolymerizable compounds and optionally a group (B) solvent or a mixture of group (A) and group (B) solvents, the gradual addition of the polymer solution to the polymerizing mixture being started before the beginning of phase inversion and at a monomer conversion rate of 5 to 15% and a viscosity of the polymerizing mixture of less than 20 Pa.sec with simultaneous continuation of polymerization, the group (A) solvent is an aliphatic (C.sub.1 -C.sub.8) or cycloaliphatic alcohol, ketone, ether, ester and/or nitrile, and the group (B) solvent is an aliphatic (C.sub.4 -C.sub.10), cycloaliphatic and/or aromatic hydrocarbon.
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patent: 5286792 (1994-02-01), Wu et al.
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Houben Weyl, Methoden der organischen Chemie, vol. E 20/Part 1, pp. 182-217, Georg Thieme Verlag Stuttgart.
Eichenauer Herbert
Ostarek Ralph
Piejko Karl-Erwin
Wingler Frank
Wulff Claus
Aylward D.
Bayer Aktiengesellschaft
Dawson Robert
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