Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reissue Patent
2008-09-16
2008-09-16
Truong, Duc (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C525S088000, C525S133000, C528S064000, C528S176000, C528S196000, C528S198000, C528S274000
Reissue Patent
active
10641029
ABSTRACT:
Thermally stable polymers comprising resorcinol arylate chain members are prepared using an interfacial method comprising the steps of: (a) combining at least one resorcinol moiety and at least one catalyst in a mixture of water and at least one organic solvent substantially immiscible with water; and (b) adding to the mixture from (a) at least one dicarboxylic acid dichloride while maintaining the pH between 3 and 8.5 through the presence of an acid acceptor, wherein the total molar amount of acid chloride groups is stoichiometrically deficient relative to the total molar amount of phenolic groups.
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Brunelle Daniel Joseph
Jang Tae-seok
O'Neil Gregory Allen
Pickett Edward
Sielovan Tiberiu Mircea
SABIC Innovative Plastics IP B.V.
Truong Duc
LandOfFree
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