Process for macroporous acrylic resins

Details Process for macroporous acrylic resins Process for macroporous acrylic resins

2007-10-11

2010-11-30

Choi, Ling-Siu (Department: 1762)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S318000, C526S328000, C526S329700, C526S336000

Reexamination Certificate

active

07842768

ABSTRACT:
A macroporous core-shell resin bead having carboxylic acid groups; the bead has from 3% to 100% of monomer residues derived from crosslinker, an average pore diameter of at least 1.5 nm, and an average particle size from 10 μm to 900 μm; wherein at least 90% of the carboxylic acid groups in the bead are in the shell region, and the shell region comprises from 5% to 75% of the bead by volume.

REFERENCES:
patent: 3418262 (1968-12-01), Werotte et al.
patent: 3509078 (1970-04-01), Roubinek et al.
patent: 3767600 (1973-10-01), Albright et al.
patent: 3892822 (1975-07-01), Frechtling
patent: 4129534 (1978-12-01), Cunningham
patent: 4486313 (1984-12-01), Meitzner et al.
patent: 4614751 (1986-09-01), Chonde
patent: 4948818 (1990-08-01), Carmody et al.
patent: 5169904 (1992-12-01), Ziemelis et al.
patent: 5175193 (1992-12-01), Heller et al.
patent: 5210159 (1993-05-01), Aoyama et al.
patent: 5216044 (1993-06-01), Hoshino et al.
patent: 5393845 (1995-02-01), Korte et al.
patent: 5856409 (1999-01-01), Ziemelis et al.
patent: 6080797 (2000-06-01), Nishida
Guo, et al., “Macroporous Poly(calcium acrylate-divinylbenzene) Bead a Selective Ortho . . . ” Industrial & Engineering Chemist Research, vol. 42, No. 22, pp. 5559-5567 (2003).
Okay, “Macroporous Copolymer Networks”, Progress in Polymer Science, Coden: PRPSB8; ISSN: 0079-6700, vol. 25, No. 6, pp. 711-779 (2000).

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