Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent
1989-11-07
1991-08-13
Anderson, Harold D.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From phenol, phenol ether, or inorganic phenolate
528176, 528190, 528195, 525437, 525444, C08G 6302, C08G 6318
Patent
active
050397800
ABSTRACT:
A copolyester having an intrinsic viscosity, measured in o-chlorophenol at 25.degree. C., of 0.3 to 1.5 dl/g and being derived from dicarboxylic acid units composed of 95 to 60 mole % of isophthalic acid units and 5 to 40 mole % of 2,6-naphthalenedicarboxylic acid units and dihydroxy compound units composed of 95 to 70 mole % of ethylene glycol units and 5 to 30 mole % of 1,3-bis(2-hydroxyethoxy)benzene units; a gas barrier imparting agent composed of the copolyester; a polyester composition composed of (A) a polyethylene terephthlate and (B) the copolyester; and a film, a preform and a container composed of the polyester composition. Also provided are a polyester laminated structure, a stretched laminated structure, a preform and a laminated blow-molded article each composed of (C) a polyalkylene terephthalate layer and (D) a copolyester layer composed of the copolyester or the polyester composition.
REFERENCES:
patent: 3972852 (1976-08-01), Inata et al.
patent: 4060516 (1977-11-01), Kuratsuji et al.
patent: 4100142 (1978-07-01), Schaefer et al.
patent: 4390683 (1983-06-01), Yatsu et al.
patent: 4692506 (1987-09-01), Yatsu et al.
Hashimoto Mikio
Kaneshige Norio
Anderson Harold D.
Mitsui Petrochemical Industries Ltd.
Mosley T.
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