Substantially crystalline poly(alkylene carbonates), laminate an

Details Substantially crystalline poly(alkylene carbonates), laminate an Substantially crystalline poly(alkylene carbonates), laminate an

1994-10-25

1996-07-16

Sluby, P. C.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528354, 528421, 428412, 428483, 2641761, C08G 6400, B32B 2736, B28B 320, C09J 500

Patent

active

055368069

ABSTRACT:
Disclosed are oriented poly(alkylene carbonates) useful in packaging film for food and other oxygen effected substances. These oriented polymers include poly(alkylene carbonates) with substantial crystallinity. Also disclosed is the crystallization of amorphous poly(alkylene carbonates) by stretching or orienting them. Further disclosed are (1) a high oxygen barrier, high clarity laminate resistant to delamination, that has a layer comprising an oriented, low oxygen barrier, predominantly crystalline polymer, and another layer adherent directly or indirectly thereto and comprising an oriented poly(alkylene carbonate) preferably with substantial crystallinity; and (2) a method for making the laminate from the polymer and the amorphous counterpart of the poly(alkylene carbonate).

REFERENCES:
patent: 2789968 (1957-04-01), Reynolds et al.
patent: 3900424 (1975-08-01), Inoue et al.
patent: 4142021 (1979-02-01), Dixon et al.
patent: 4407877 (1983-10-01), Rasmussen
patent: 5037950 (1991-08-01), Bezada et al.
Manual of Patent Examining Procedure, Appendix AI, p. AI-43, Rev. 14, Nov. 1992.

Affiliated with

Also associated with

Rating

Substantially crystalline poly(alkylene carbonates), laminate an does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Substantially crystalline poly(alkylene carbonates), laminate an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Substantially crystalline poly(alkylene carbonates), laminate an will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1785329