Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1987-10-02
1989-08-01
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525410, 525422, 525446, 525453, 525476, 525477, 525478, 525479, 525474, C08F 800
Patent
active
048534340
ABSTRACT:
There is disclosed a modified reaction resin with a content of 50 to 98% by weight of a liquid reaction resin or reaction resin mixture processed into thermosetting plastic with a suitable reactive group of sufficient number for the hardening process and 2 to 50% by weight of one or more three-dimensional crosslinked polyorganosiloxane rubbers, which are held in the reaction resin matrix in finely divided state as polyorganosiloxane rubber particles with a diameter of from 0.01 to 50 micrometers, together with small quantities of other auxiliary materials. The rubber particles have reactive groups on their surfaces, which in turn in the presence of auxiliary media serving as reactive components can react chemically with the reaction resin.
There is also disclosed a process for the production of the modified reaction resins and their use for the production of fracture and impact resistant, also definitively shaped thermosetting plastics, fiber-reinforced plastics, insulation materials and laminated plastic.
REFERENCES:
patent: 4369289 (1983-01-01), Keogh
patent: 4594134 (1986-06-01), Hanada et al.
patent: 4725648 (1988-02-01), Fujimoto et al.
Hanse Chemie GmbH
Marquis Melvyn I.
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