Co-extrusion of polyvinylidene fluoride/polystyrene multiple-lay

Details Co-extrusion of polyvinylidene fluoride/polystyrene multiple-lay Co-extrusion of polyvinylidene fluoride/polystyrene multiple-lay

1976-03-02

1977-09-27

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

156244, 264171, 428220, 428332, 428421, 428522, B32B 702, B32B 2700

Patent

active

040512932

ABSTRACT:
A process is disclosed for producing composite sheeting of polystyrene having a thin protective layer of vinylidene fluoride polymer. The process comprises joining a molten stream of each polymeric material in a single extruder discharge conduit such that there is produced a single molten stream having a reasonably well defined interface between the two types of polymeric material, and thereafter, passing the resulting single stream of material through a sheet-form extrusion die having its die lips generally aligned with the foregoing interface.

REFERENCES:
patent: 2821746 (1958-02-01), Bicher, Jr.
patent: 3491178 (1970-01-01), Nishioka et al.
patent: 3576707 (1971-04-01), Schrenk et al.
patent: 3579395 (1971-05-01), Rath
patent: 3821182 (1974-06-01), Baird, Jr. et al.

Affiliated with

Also associated with

Rating

Co-extrusion of polyvinylidene fluoride/polystyrene multiple-lay does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Co-extrusion of polyvinylidene fluoride/polystyrene multiple-lay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Co-extrusion of polyvinylidene fluoride/polystyrene multiple-lay will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1815708