Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1992-11-23
1993-08-10
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
430192, 525480, 525501, 528155, 528 1, C08G 804, C08G 1404, G03F 7023
Patent
active
052350223
ABSTRACT:
A block copolymer novolak resin composition comprising at least one unit of the reaction product of an alkali-soluble phenolic polymer and a reactive ortho, ortho bonded oligomer having the formula: ##STR1## wherein x is from 2 to 7; wherein R is selected from hydrogen a lower alkyl group or lower alkoxy group having 1-4 carbon atoms and a halogen group; and Y.sub.1 is either a hydroxyl group; an alkoxy group or a halogen group; and Y.sub.2 is hydrogen, alkyl, alkoxy, halogen, hydroxyl, --CH.sub.2 OH, --CH.sub.2 -- halogen, or --CH.sub.2 -alkoxy group.
REFERENCES:
patent: 4642282 (1987-02-01), Stahlhofen
patent: 4826821 (1989-05-01), Clements
patent: 4835204 (1989-05-01), Carfagnini
Non-Aqueous Titration of Polynuclear Phenolic Compounds: Part IV--Titration of Some High Molecular Weight Synthetic Compounds of Uniform Constitution by S. K. Chatterjee, Jun. 1969, pp. 605-610.
Correlation of Composition and DP of Some 3-Component Phenolic Block Copolymers with Their Titration Curves in Nonaqueous Media by S. K. Chatterjee et al., 1981, pp. 717-727.
Dissociation Behavior of Some Mixtures of Synthetic Phenolic Oligomers in Nonaqueous Media by S. K. Chatterjee et al., 1978, pp. 1031-1039.
Effect of Substitutents on the Composition and Dissociation Behavior or Some Four Component Phenolic Copolymers by S. K. Chatterjee et al., Oct. 1981.
Study of Electrochemical Properties and Formation of Some Phenolic Block Copolymers by S. K. Chatterjee et al., 1983, pp. 93-103.
Blakeney Andrew J.
Honda Kenji
Jeffries, III Alfred T.
Tadros Sobhy
Kight III John
Mosley T.
OCG Microelectronic Materials Inc.
Simons William A.
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