Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof
Patent
1987-06-19
1989-07-11
Kight, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From carboxylic acid or derivative thereof
528125, 528126, 528128, 528172, 528185, 528188, 528229, 528352, 522164, 430283, 430325, C08G 6926
Patent
active
048473596
ABSTRACT:
Compounds containing at least 5 mol % of structural units of the formulae I and/or II ##STR1## in which Q is an unsubstituted or substituted tetravalent aromatic radical to which in each case two carbonyl groups are bonded in the ortho- or peri-position, R.sup.1 is selected from the radicals of the formulae III, IV and V ##STR2## R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are hydrogen, alkyl, cycloalkyl or substituted or unsubstituted aryl or aralkyl, R.sup.6 and R.sup.7 are aryl or halogen, m and n are 0, 1 or 2 and o is 0, 1, 2, 3 or 4, are described.
The compounds are distinguished by an increased resistance to oxidation by heat. They can be used to produce coatings and relief structures.
REFERENCES:
patent: 3963762 (1976-06-01), Hohmann
patent: 4629777 (1986-12-01), Pfeifer
patent: 4657832 (1987-04-01), Pfeifer
patent: 4680195 (1987-07-01), Pfeifer
R. A. Dine-Hart, Makromol. Chem., 153, 237 (1972).
Duthaler Rudolf
Pfeifer Josef
Ciba-Geigy Corporation
Falber Harry
Hall Luther A. R.
Kight John
Moonan M. L.
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