Process for substantially eliminating surface melt fracture duri

Details Process for substantially eliminating surface melt fracture duri Process for substantially eliminating surface melt fracture duri

1989-06-15

1993-04-20

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Utilizing special inert gaseous atmosphere or flushing mold...

264211, 264564, 524272, 524274, B29C 4700

Patent

active

052040321

ABSTRACT:
A process for substantially eliminating surface melt fracture during extrusion of a thermoplastic polymer such as a molten narrow molecular weight distribution, linear, ethylene copolymer, by incorporating into the thermoplastic polymer a wood rosin or wood rosin derivative.

REFERENCES:
patent: 3869416 (1975-03-01), Hoh
patent: 4127546 (1978-11-01), Lundberg et al.
patent: 4522776 (1985-06-01), Ramamurthy
patent: 4552712 (1985-11-01), Ramamurthy
patent: 4554120 (1985-11-01), Ramamurthy
Harris, G. "Rosin and Rosin Derivatives." in: Encyclopedia of Chemical Technology, vol. 11, pp. 779-810.

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