Toughening of cured vinyl ester resins by inclusion in the uncur

Details Toughening of cured vinyl ester resins by inclusion in the uncur Toughening of cured vinyl ester resins by inclusion in the uncur

1986-01-17

1989-04-25

Short, Patricia

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

Synthetic resins

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

525454, 525455, 525528, 525920, C08L 6114, C08L 6310

Patent

active

048249190

ABSTRACT:
Vinyl ester/styrene mixtures are flexibilized by addition thereto of minor amounts of urethanes which (1) comprise at least one polyglycol moiety and two urethane groups and are terminated by vinyl-reactive end groups, and (2) form a dispersed second phase in the cured mixture. The flexibilized compositions otherwise largely retain the characteristic properties of the unflexibilized mixtures.

REFERENCES:
patent: 4200762 (1980-04-01), Schmidle
patent: 4296215 (1981-10-01), Markiewitz
patent: 4338242 (1982-07-01), Burton
patent: 4348427 (1982-09-01), Priola
patent: 4357219 (1982-11-01), Sattler
patent: 4390662 (1983-06-01), Ando
patent: 4394496 (1983-07-01), Schrader
patent: 4416750 (1983-11-01), Murphy
patent: 4422996 (1983-12-01), Navin

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