Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2005-04-05
2005-04-05
Lipman, Bernard (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S248000, C526S257000, C526S261000, C526S286000, C526S288000, C526S298000, C526S304000, C526S307000, C526S311000, C526S312000
Reexamination Certificate
active
06875833
ABSTRACT:
Disclosed are monomers which contain groups that are at least trinuclear, which are capable of absorbing the electromagnetic radiation of visible light, and which are structured such that in their thermodynamically stable state they are distended and strongly anisometric. Homopolymers prepared from such monomers, a process of preparing such homopolymers, and articles comprising such homopolymers are also disclosed. The trinuclear groups of the monomers include at least one electron-attracting substituent which gives rise to a dipole moment which forms an angle of at least 20° with the longitudinal axis of the trinuclear groups. The monomers of the present invention contain covalently bonded branching side groups, and may be represented by the following formula,in-line-formulae description="In-line Formulae" end="lead"?H2C═C(R)—C(O)-§-T—Q—Ein-line-formulae description="In-line Formulae" end="tail"?In the formula: R is hydrogen or methyl; § represents one of oxygen, sulfur and NR1; T represents a (CH2)nradical, optionally interrupted by, for example, —O—; Q represents a divalent linking group; and E represents the trinuclear group, e.g., a trinuclear group represented by the following formula (VII),
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Berneth Horst
Claussen Uwe
Kostromine Serguei
Neigl Ralf
Vedder Hans-Joachim
Bayer Aktiengesellschaft
Franks James R.
Gil Joseph C.
Lipman Bernard
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