Reactive resins with terminal and/or pendant vinyl groups

Details Reactive resins with terminal and/or pendant vinyl groups Reactive resins with terminal and/or pendant vinyl groups

1990-09-05

1992-05-19

Schofer, Joseph L.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

525452, 526301, 528 44, 528 51, 528 59, 528 69, C08G 1870, C08G 1872, C08G 1881

Patent

active

051150727

ABSTRACT:
Saturated and ethylenically unsaturated compounds containing carboxylic, amino or alcohol groups are reacted under mild conditions and in short process times with polycarbodiimides containing free isocyanate units to provide polymers with excellent properties. The unsaturated groups bonded to the polymers are particularly important because these groups provide reactive centers that can be crosslinked, either thermally or in the presence of catalysts that initiate polymerization or by radiation. The polymers can also be crosslinked either alone or by copolymerization with various unsaturated monomers. The resulting crosslinked or cured resins provide excellent properties such as hardness, high elongation, excellent toughness, high heat distortion temperatures and good corrosion resistance.

REFERENCES:
patent: 3755242 (1973-08-01), Reich
patent: 4148844 (1979-04-01), von Bonin
Kurzer, F. et al., Chem. Rev. 67, No. 2, p. 107 (1967).
Williams, A. et al., Chem. Rev. 81, No. 4, p. 589 (1981).

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