Method for reducing sharkskin melt fracture during extrusion of

Details Method for reducing sharkskin melt fracture during extrusion of Method for reducing sharkskin melt fracture during extrusion of

1979-12-12

1981-08-04

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Production of continuous or running length

264176R, 264209, 264216, 4253261, 425461, 526124, B29D 2304

Patent

active

042821770

ABSTRACT:
A method for reducing sharkskin melt fracture during extrusion of a molten narrow molecular weight distribution linear ethylene polymer which comprises extruding said polymer through a die having a die gap greater than about 50 mils and wherein at least a portion of one surface of the die lip and/or die land in contact with the molten polymer is at an angle of divergence or convergence relative to the axis of flow of the molten polymer through the die.

REFERENCES:
patent: 3376605 (1968-04-01), Beattie
patent: 3382535 (1968-05-01), Ferrari
patent: 3874837 (1975-04-01), Jamieson
patent: 3879507 (1975-04-01), Cavanna
patent: 3914366 (1975-10-01), Wilson
patent: 3920782 (1975-11-01), Cogswell
patent: 3994654 (1976-11-01), Chyu
patent: 4187269 (1980-02-01), Hutchinson et al.

Affiliated with

Also associated with

Rating

Method for reducing sharkskin melt fracture during extrusion of does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for reducing sharkskin melt fracture during extrusion of , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for reducing sharkskin melt fracture during extrusion of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-239843