Plastics cellular material and method of making

Details Plastics cellular material and method of making Plastics cellular material and method of making

1984-02-21

1984-11-13

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521110, 521135, 521138, 525 31, 525529, C08V 906

Patent

active

044826494

ABSTRACT:
This invention relates to a plastics cellular material and to a process for production of a plastics cellular material. The plastics cellular material has a resin binder and is characterized by the inclusion of products of the reaction of polyester resins and epoxy-based vinyl esters in the presence of surfactants. The process includes taking a first mixture of an unsaturated fast curing polyester resin, epoxy-based vinyl esters, copolymerizeable monomers, a finely dispersed gas releasing salt, hardening accelerators, finely dispersed surfactants, and fillers. The process also includes taking a second mixture is mixed that includes an acidic solution, for reaction with the gas releasing salt as a blowing agent, and organic catalysts. The two mixtures are combined to form a third mixture that will foam in a controllable manner and cure to produce a foam material.

REFERENCES:
patent: 3993609 (1976-11-01), Kamens et al.
patent: 4101464 (1978-07-01), Kamens et al.

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