Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Reexamination Certificate
2005-08-30
2005-08-30
Tran, Thao T. (Department: 1711)
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
C428S036900, C604S019000, C422S914000, C422S916000, C422S918000, C525S232000, C525S241000
Reexamination Certificate
active
06936319
ABSTRACT:
A tube, preferably a centrifuge tube, molded of a blend of 25-35 weight percent of polystyrene and 75-65 weight percent of styrene-butadiene rubber block copolymer has improved performance compared to a tube of pure copolymer.
REFERENCES:
patent: 4371663 (1983-02-01), Russell
patent: 5248729 (1993-09-01), Inoue et al.
patent: 5466499 (1995-11-01), Takagi et al.
patent: 5753326 (1998-05-01), Blackwelder
patent: 6270866 (2001-08-01), Okuda et al.
patent: 56-045190 (1981-04-01), None
Alquesta Robert E.
Banner Daniel S.
Beres, III Louis S.
McCann John G.
Repp Joseph A.
Becton Dickinson and Company
Thomas Nanette S.
Tran Thao T.
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