Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1995-02-10
1997-07-29
Acquah, Samuel A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528422, 528423, 526258, 526263, C08G 7306, C08F 2606, C08F12606
Patent
active
056523270
ABSTRACT:
A polymer containing triazine rings that has a molecular weight of 5,000-1,000,000 and that comprises a recurring unit represented by the general formula (I): ##STR1## wherein X.sup.1 and X.sup.2 are each independently S, NR.sup.1 (R is a hydrogen atom, an alkyl group or an aryl group) or O; Y may be an alkylene group, a divalent substituted or unsubstituted aromatic ring group that do not contain chromophore moieties or a group in which said aromatic ring groups are bonded or condensed together; Z is either a spacer group comprising a group represented by --G--(CH.sub.2).sub.n -- (n is an integer of 1-10) or a direct bond (G is S, NR.sup.4 or O, and R.sup.4 is a hydrogen atom, an alkyl group or an aryl group); and A is an organic chromophore moiety in which an electron donative group and an electron attractive group are conjugated via a .pi.-electron system. The polymer is lightproof, forms a thin film of high quality and has a high glass transition point.
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patent: 4347352 (1982-08-01), Wesseler
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Applied Physics Letters, vol. 60, No. 10, Mar. 9, 1992, pp. 1158-1160 by S. Tatsuura et al. entitled "Epoxy-amine Polymer Waveguide Containing Nonlinear Optical Molecules Fabricated by Chemical Vapor Deposition".
CA 95(8):62957n "Polymers containing atriazine ring", Kanesafuchi, Aug. 24, 1981.
Kang Wen-Bing
Ogura Shizuo
Sugiyama Tsunetoshi
Takano Yusuke
Acquah Samuel A.
Hampton-Hightower P.
Hoechst Aktiengesellschaft
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