Cross-linked resins

Details Cross-linked resins Cross-linked resins

1988-10-26

1990-02-20

Nielsen, Earl

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

Synthetic resins

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

523445, 523448, 523457, 523458, 523468, 528 88, 528 89, 528 90, 528117, 528361, 528407, C08G 5956

Patent

active

049027603

ABSTRACT:
A cross-linked resin produced by heating a mixture of (a) a bis(2-oxazoline) compound, (b) an aromatic polyamine compound which has at least two amino groups in the molecule and (c) a polyepoxy compound which has at least two epoxy groups in the molecule at elevated temperatures, preferably in the presence of an oxazoline ring-opening polymerization catalyst. The resin shows a high mechanical strength and toughness, a very small water absorption and a very high resistance to heat.

REFERENCES:
patent: Re28669 (1975-12-01), Tomalia et al.
patent: Re29027 (1976-11-01), Alford et al.
patent: 3476712 (1969-11-01), Fukui et al.
patent: 3630996 (1971-12-01), Tomalia
patent: 3639395 (1972-02-01), Tomalia
patent: 3716520 (1973-02-01), Tomalia
patent: 3730915 (1973-05-01), Tomalia et al.
patent: 3784508 (1974-01-01), Tomalia et al.
patent: 4652620 (1987-03-01), Tufts

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