Ruth Merrill of Eugene died May 20 of liver cancer.
1] is a divalent alkylene group, arylene
group or mixture thereof, substituted with one or more heteroatoms or functional groups, containing about one to about 16 carbon atoms; [R.
Cabot Corporation has obtained a patent for a modified pigment preparation that is comprised of a pigment having attached a group comprising the formula -X-Sp-S-[PI], wherein X is an arylene
, heteroarylene, or alkylene group, Sp is a spacer group, and PI represents a polymeric group comprising at least one ionic or ionizable group comprising the reaction product of a polymer having at least one anhydride, at least one activated carboxylic acid, or at least one carboxylic acid or salt thereof and an alkylamine, arylamine, or alcohol.
Merrill - Arylene
Ruth Merrill, 75, of Eugene, died May 20.
has been granted a patent for a process for preparing a polymer-modified pigment which is comprised of combining, in any order, at least one pigment having attached at least one nucleophilic group comprising a group having the formula X-Sp-[PA], at least one polymer comprising at least one carboxylic acid group or salt thereof, and at least one coupling agent, wherein X, which is directly attached to the pigment, represents an arylene
, heteroarylene, or alkylene group, Sp represents a spacer group, and PA represents a polyamine group, a salt thereof, or an acyl derivative thereof, and wherein PA further comprises at least one substituent group attached to the pigment.
Survivors include his wife; two sons, Jay of Corvallis and Tim of Sisters; a daughter, Ann Flatz of Beaverton; a brother, Joe of Seattle; three sisters, Lenore Dillavou and Arylene
Muir, both of Sioux City and Rose Hedlund of Concord, Calif.
a daughter, Arylene
Merrill of Eugene; a brother, Dale Pierson of Pasco, Wash.
It was found that arylene
and pyridylene bisoxazolines reacted with carboxy-terminated aliphatic PAs and polyesters without noticeable side reactions, and the highest reactivity could be reached within 20 min at 200`C.
To overcome this problem various Engineering thermoplastics like polyether sulfone (2), (3), polycarbonate (4), (5), polyethylene tere phthalate (6), (7), poly ether ether ketone/hydroxyl terminated poly (ether ether ketone) with pendant methyl groups (PEEKMOH) (8), (9), Poly ether ether ketone/hydroxyl terminated poly ether ether ketone with pendant tertiary butyl groups (10-13) or poly (cyanoarylene ether)/hydroxyl terminated poly arylene
ether nitrile with pendant tertiary butyl groups (14), (15) have been used as a toughness modifiers for epoxy resin without sacrificing other thermomechanical properties.
The family of PAEKs consists of polymers with different ratios of arylene
ether and arylene
ketone groups (see Table 1).
TABULAR DATA FOR TABLE 3 OMITTED] On the contrary, none of the arylene
dicarboxylates melted below their decomposition temperatures.