Biaxially stretched polypropylene-based plastic products, and pr

Details Biaxially stretched polypropylene-based plastic products, and pr Biaxially stretched polypropylene-based plastic products, and pr

1981-05-26

1982-12-07

Seccuro, Carman J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C08L 2310, C08L 2326

Patent

active

043628443

ABSTRACT:
The invention relates to polypropylene-based plastic products, biaxially stretched below the melting point, wherein the plastic consists substantially of a mixture of 60-95 % by weight of a substantially crystalline propylene polymer and 5-40 % by weight of an ethylene-vinylalcohol copolymer, and to a process for making such products.
According to the invention an ethylene-vinylalcohol copolymer is used having a melting point which is at most equal to that of the propylene polymer, preferably 0-20 K below the melting point of the propylene polymer.
The invention provides biaxially stretched polypropylene products having an outstandingly good gas impermeability while retaining their good properties in respect of optical clarity, mechanical properties and simplicity of production.

REFERENCES:
patent: 3975463 (1976-08-01), Hirata et al.

Affiliated with

Also associated with

Rating

Biaxially stretched polypropylene-based plastic products, and pr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Biaxially stretched polypropylene-based plastic products, and pr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Biaxially stretched polypropylene-based plastic products, and pr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1904047