Miscible polyester blends

Details Miscible polyester blends Miscible polyester blends

1991-10-28

1992-07-28

Marquis, Melvyn I.

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

Synthetic resins

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

525530, 525523, 525933, 528 87, 528176, C08L 6700, C08L 6706

Patent

active

051342014

ABSTRACT:
Miscible blends of (1) a thermoplastic methylol polyester having backbone repeating units containing pendent hydroxyl and methylol moieties and divalent organic moieties such as 1,3-phenylene, 1,4-phenylene, 2,6-naphthalene, biphenylene and isopropylidene diphenylene, and (2) a linear, saturated polyester or copolyester of aromatic dicarboxylic acids, such as poly(ethylene-co-1,4-cyclohexanedimethylene terephthalate) (PETG) and poly(ethylene terephthalate) (PET), have improved clarity and exhibit enhanced barrier to oxygen relative to PET and PETG.

REFERENCES:
patent: 3477990 (1969-11-01), Dante et al.
patent: 3948855 (1976-04-01), Perry
patent: 4661541 (1987-04-01), Batzill et al.
patent: 4713269 (1987-12-01), Jabarin et al.
patent: 4713270 (1987-12-01), Jabarin et al.
patent: 4729927 (1988-03-01), Hirose et al.
patent: 4742096 (1988-05-01), Craun
patent: 5003041 (1991-03-01), Morris et al.

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