Photo-degradable shotshell of polyethylene and EVA-CO terpolymer

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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Details

102466, 102467, 102532, 524306, 524400, 524436, 524502, 525185, F42B 530, C08K 320, C08K 5095, C08L 2306

Patent

active

057959234

ABSTRACT:
A photo-degradable, molded, high strength plastic shotshell component having a degradation composition comprising as its combination of active ingredients linear polyethylene having a melt index of 0.1 to 5.0 and an ethylene-vinyl acetate-carbon monoxide terpolymer, the ratios by weight of which to said linear polyethylene is approximately 0.115:1 to 0.261:1 The ethylene-vinyl acetate-carbon monoxide terpolymer in its preferred composition has about 65% by weight of ethylene, 25% by weight of vinyl acetate, and 10% by weight of carbon monoxide.

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Dupont brochure on Elvalloy 741 and 742 resin modifiers (no date).
Federal Register, vol. 59, No. 40, Tuesday, Mar. 1, 1994, Rules and Regulations, pp. 9866-9770, inclusive.
Extract taken from Kirk/Othmer Encyclopedia of Chemical Technology, 3d Edition, 1978, Supplement Volume, pp. 626-627, inclusive, pp. 648-668, inclusive.
C.J. Kmiec article entitled "Ethylene-Carbon Monoxide Copolymer: The Established Degradable Plastic," Union Carbide Chemicals & Plastic Company, Inc. (no date).
Florida Test Rules for Degradable Materials, Chapter 17-707, pp. 1-8, inclusive (1993).
Encyclopedia of Polymer Science and Engineering, vol. 10, 2d Edition, 1985--Olefin-Carbon Monoxide Copolymers, pp. 369-373, inclusive.

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