Method for reducing residual monomer in a polymer matrix

Details Method for reducing residual monomer in a polymer matrix Method for reducing residual monomer in a polymer matrix

2008-07-08

2008-07-08

Nutter, Nathan M (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S193000, C525S194000, C525S195000, C525S196000

Reexamination Certificate

active

07396879

ABSTRACT:
Residual monomer in a polymer matrix may be reduced by a method including admixing a polymer matrix comprising an amount of residual monomer and a conjugated diene. This method can be carried out under reaction conditions such that the amount of residual monomer is reduced. The monomer comprises at least one electron withdrawing substituent and the conjugated diene comprises at least one electron donating substituent. This method is particularly useful for reducing the amount of residual styrene monomer in polystyrene homopolymer and copolymer compositions.

REFERENCES:
patent: 3257341 (1966-06-01), Wilfrid et al.
patent: 5886140 (1999-03-01), Olivares et al.
patent: 2004/0068093 (2004-04-01), Merrigan et al.

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