Process for color and surface stabilization in forming water-ext

Details Process for color and surface stabilization in forming water-ext Process for color and surface stabilization in forming water-ext

1976-02-09

1978-02-28

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

To degas or prevent gas entrapment

260 296NR, 264236, 264294, 264331, 264335, 264336, C08L 6706

Patent

active

040767841

ABSTRACT:
This disclosure is concerned with stabilizing the color and surface of catalytically cured water-extendable polyester resin plastics and the like by appropriate constituent proportions and mold wall selection that enable effecting critical sealing to predetermined portions of the mold to prevent air flow or communication at the mold-plastic mass interfaces during the gel cycle.

REFERENCES:
patent: 2373488 (1945-04-01), Marks
patent: 2997745 (1961-08-01), Kroecker
patent: 3256219 (1966-06-01), Will
patent: 3275734 (1966-09-01), Rabenold
patent: 3726819 (1973-04-01), Dijkhuizen
patent: 3740353 (1973-06-01), Patrick et al.
patent: 3766102 (1973-10-01), Pietsch et al.
patent: 3779966 (1973-12-01), Weeks et al.
patent: 3806563 (1974-04-01), Lammers
"Polyesters as Casting Resins", Weeks, Plastics, 11-1947, vol. 11, pp. 588-592 . . .
"Organic Peroxide Catalysts for Polyesters", Rybolt et al., Modern Plastics, vol. 26, 4-1949, pp. 101-103, 150, 152, 154 & 157 . . .

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