Process for improving the flowability of ultrahigh-molecular-wei

Details Process for improving the flowability of ultrahigh-molecular-wei Process for improving the flowability of ultrahigh-molecular-wei

1989-07-10

1990-08-28

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524399, 524400, 524487, 524488, 524585, 528491, 528497, C08J 320, C08K 501, C08K 503

Patent

active

049526251

ABSTRACT:
A process for producing a thermoplastic ultrahigh-molecular-weight polyethylene composition having excellent moldability, which comprises mixing at room temperature to 100.degree. C. an ultrahigh-molecular-weight polyethylene having an average molecular weight of at least 2,000,000 with an amount, effective for acting as a solvent to said polyethylene and improving the flowability of the polyethylene, of a flowability improver selected from the group consisting of (a) styrene, (b) alpha-methylstyrene, (c) chlorinated styrene and (d) a mixture of (a) and (b), wherein the amount of the flowability improver is 3 to 30 parts by weight for styrene and 3 to 30 parts by weight for alpha-methylstyrene and styrene, per 100 parts by weight of the ultrahigh-molecular-weight polyethylene, and optionally admixing at least one member of the group consisting of a pigment, carbon black, a stabilizer, a lubricant and an inorganic filler.

REFERENCES:
patent: 2590834 (1952-04-01), Faulkner et al.
patent: 3364284 (1968-01-01), Edmonds et al.
patent: 3665068 (1972-05-01), Duling et al.
patent: 3976612 (1976-08-01), Kaji et al.
patent: 4130618 (1978-12-01), Hill
patent: 4246390 (1981-01-01), Seaver
patent: 4487875 (1984-12-01), Nakajima et al.
patent: 4518552 (1985-05-01), Matsuo et al.
N. Nakajima, "Polymer Molecular Weight Methods", A.C.S. Advances in Chem. Series 125, A.C.S., Washington, DC (1973) pp. 98-107.
CA(98):55116w (1983), p. 55127.
"Modern Plastics Encyclopedia", McGraw-Hill Inc., New York, NY (1980), p. 708.
"Plastics Materials and Processes", S. Schwartz et al., Van Nostrand Reinhold Co., N.Y., pp. 74-75 (1982).
Boyer, "Styrene Polymers" in Encyclopedia of Polym. Sci. and Tech., J. Wiley & Sons, Inc. (1970) pp. 156-157.
Modern Plastics Encyclopedia, J. Agranoff (ed.) McGraw-Hill Inc., N.Y., N.Y. (1980) p. 214.
Schwartz et al., Plastics Materials and Processes, Van Nostrand Reinhold Co, N.Y., 467, 1982.

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