Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1996-06-07
1999-01-12
Smith, Jeffrey
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C07C 6952
Patent
active
058592865
ABSTRACT:
A monomer having a structure expressed as: ##STR1## wherein R.sub.1 is a hydrogen atom, --OH group, --COOR.sub.5 group, or group expressed as: ##STR2## R.sub.2 is a hydrogen atom, --CH.sub.3 group, or --CH.sub.2 COOR.sub.4 group, R.sub.3 is a hydrogen atom, --OH group, or --CH.sub.2 COOR.sub.4 group, R.sub.4 is a hydrogen atom, sodium atom, potassium atom, or --NH.sub.4 group, and R.sub.5 is a sodium atom, potassium atom, or --NH.sub.4 group; a polymer having a structure unit expresses as: ##STR3## wherein R.sub.1 through R.sub.5 are identical with the above; and a composition containing a polymer that excels the conventional chleating agents in chleating and dispersing effects besides rendering excellent biodegradability. Therefore, the composition is preferably used as a detergent composition, an inorganic pigment dispersing agent, a fiber treatment agent, a water treatment agent (anti-scale agent), and a bleaching assistant for wood pulp, etc.
REFERENCES:
patent: 5064563 (1991-11-01), Yamaguchi et al.
Printout from the Registry of STN/CAS about the structured formulas of cis-and trans-coumaroyl-tartaric acid.
Chieko Yoneyama and Tadae Kushida, Yamanashi Daigaku Hakko Kenkyusho Kenkyu Hokoku, 15, 9-13, 1980.
Rosa M. Lamuela-Raventos and Andrew L. Waterhouse, American Journal of Enology and Viticulture 45(1), 1-5, 1994.
Tuboi Keisi
Yamaguchi Shigeru
Cheng Wu C.
Nippon Shokubai Co. , Ltd.
Smith Jeffrey
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