Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1998-06-09
2000-02-01
Niland, Patrick D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
524457, 524458, 524460, 524461, 524527, 525193, 5253307, 5253315, 5253333, 5253334, 525902, C08F25904, C08F25906, C08F 1400, C08F 1416, C08F11416
Patent
active
060204389
ABSTRACT:
An emulsion polymer comprising as one of its components a graft copolymer of a residual aromatic monomer-free support resin polymer and a vinyl chloride (co)polymer is disclosed. The emulsion polymer is prepared using a two-stage process. In the first stage, a chasing monomer is reacted in the presence of a support resin polymer having at least one aromatic monomer to form an polymer which is free of residual monomer and has monomeric units derived from the aromatic monomer(s). In a second stage, the vinyl chloride emulsion (co)polymer is made in situ in a reaction mixture comprising the polymer which is free of residual monomer. An extensive grafting at the second stage yields a novel water dispersible graft copolymer containing both styrene and vinyl chloride.
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Fitzwater John E.
Lubnin Alexander V.
Stanislawczyk Vic
Topp Michael W.
Moxon II George W.
Niland Patrick D.
The B. F. Goodrich Company
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