Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Patent
1990-08-09
1992-02-04
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
264515, 264540, 264173, 425523, B29C 4904, B29C 4922
Patent
active
050858165
ABSTRACT:
A process for preparing a laminar article with multiple thin, overlapping layers, includes preparing a melted heterogeneous blend of a polyolefin, an ethylene-vinyl alcohol copolymer, and a compatibilizer having a specified level of grafted cyclic anhydride groups; extending the body of the melt; and cooling the extended body to below the melting point of the polyolefin.
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patent: 4254169 (1981-03-01), Schroeder
patent: 4410482 (1983-10-01), Subramanian
patent: 4416942 (1983-11-01), DiLuccio
patent: 4588648 (1986-05-01), Krueger et al.
patent: 4612155 (1986-09-01), Wong et al.
patent: 4869963 (1989-09-01), Gallucci et al.
patent: 4970041 (1990-11-01), Macy et al.
E. I. Du Pont de Nemours and Company
Shold David M.
Thurlow Jeffery
Vargot Mathieu
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