Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1991-04-11
1993-04-13
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264245, 2642972, 2643288, 26432812, 264513, 425130, B29C 4516
Patent
active
052020746
ABSTRACT:
A method of making a multilayer plastic article by forming a multilayer stream of diverse thermoplastic materials and injection molding the multilayer stream directly into the article. The multilayer stream can be formed by coextrusion of the materials or by coextrusion followed by layer multiplication in one or more interfacial surface generators/static mixers. The coextruded stream, or a multiplied stream from the one or more ISG's, can also be divided into substreams and the substreams thereafter recombined prior to being injection molded so that the layers in one such substream are angularly oriented with respect to the layers in another substream.
REFERENCES:
patent: 3195865 (1965-07-01), Harder
patent: 3239197 (1966-03-01), Tollar
patent: 3339240 (1967-09-01), Corbett
patent: 3404869 (1968-10-01), Harder
patent: 3557265 (1971-01-01), Chisholm et al.
patent: 3565985 (1971-02-01), Schrenk et al.
patent: 3716612 (1973-02-01), Schrenk et al.
patent: 3817675 (1974-06-01), Marocco
patent: 3884606 (1975-05-01), Schrenk et al.
patent: 4147748 (1979-04-01), Saumsiegle
patent: 4174413 (1979-11-01), Yasuike et al.
patent: 4416942 (1983-11-01), DiLuccio
patent: 4444817 (1984-04-01), Subramanian
patent: 4449913 (1984-05-01), Krishnakumar et al.
patent: 4501781 (1985-02-01), Kushida et al.
patent: 4752199 (1988-06-01), Arai
patent: 4840553 (1989-06-01), Arai
patent: 4978493 (1990-12-01), Kersemakers et al.
ASME Publication Paper No. 62-WA-336 Shrenk, Cleereman, Alfrey, Jr.
Modern Plastics, Smoluk, Apr. 1989.
Packaging Digest, Jan. 1977.
ANTEC '85, J. C. Pawloski and Raspor, 1985.
Ayres Ralph E.
Roehrs Herbert C.
Schrenk Walter J.
Shastri Ranganath K.
Silbaugh Jan H.
The Dow Chemical Company
Timm Catherine
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