Method of molding multi-ply polymeric composites

Details Method of molding multi-ply polymeric composites Method of molding multi-ply polymeric composites

1983-05-09

1985-11-05

Buffalow, Edith

Stock material or miscellaneous articles

Composite

Of quartz or glass

428325, 428392, 428482, 156242, 264510, 264101, 264255, B32B 900

Patent

active

045513902

ABSTRACT:
This invention pertains to a method to permit the molding of a plurality of plies of polymeric compositions into an integral molded object having a minimum number of internal flaws and, therefore, improved properties. The plies are positioned in contiguous relationship, and the initiation of the polymerization reactions is controlled by selecting catalyst systems which substantially simultaneously initiate polymerization in each of the plies to prevent the development of curing seams at the points of contact between the plies.

REFERENCES:
patent: 3772241 (1973-11-01), Kroekel
patent: 3883612 (1975-05-01), Pratt et al.
patent: 4379801 (1983-04-01), Weaver et al.
patent: 4399179 (1983-08-01), Minami et al.
patent: 4404261 (1983-09-01), Canning et al.
patent: 4405400 (1983-09-01), Petersen-Hoj

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