Method and formula for forming hyper-branched polymer

Details Method and formula for forming hyper-branched polymer Method and formula for forming hyper-branched polymer

2008-12-12

2011-11-15

Seidleck, James J (Department: 1765)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C528S322000, C528S314000, C528S228000, C528S170000, C528S026000

Reexamination Certificate

active

08058358

ABSTRACT:
The invention provides hyper-branched polymer manufactured by adding a bismaleimide and a barbituric acid into a Brönsted base solution and reacting the mixture at 20 to 100° C. The formation may further include maleimide monomer and/or multi-maleimide monomer to modify the hyper-branched polymer properties. In addition, the barbituric acid is added to the reaction in a batch not initially charged with other reactants in a one-pot.

REFERENCES:
patent: 2006/0122361 (2006-06-01), Olson et al.
patent: 2008/0146706 (2008-06-01), Tseng et al.
patent: 2008/0157021 (2008-07-01), Wang et al.
patent: 101210073 (2008-07-01), None
Pan et al “Effect of Barbituric Acid on the Self-Polymerization Reaction of Bismaleimide”, Journal of Applied Polymer Science, vol. 45, 103-109 (1992).
Office Action from Chinese Application No. 200810146910.5.

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