Polyester containing 2-methyl-1,3-propylene terephthalate units

Details Polyester containing 2-methyl-1,3-propylene terephthalate units Polyester containing 2-methyl-1,3-propylene terephthalate units

1982-03-22

1983-04-26

Phynes, Lucille M.

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

Synthetic resins

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

525437, 525445, 528272, 528303, 5283087, C08F28300, C08F28302, C08G 6376

Patent

active

043813798

ABSTRACT:
Polytetramethyleneterephthalate is modified with incorporation of 2-methyl-1,3-propanediol. The diol component of the polyester comprises 1 to 99 mol % of tetramethylene glycol and 99 to 1 mol % of 2-methyl-1,3-propanediol. Alternatively polytetramethylene terephthalate is combined with 0.1 to 25 wt. %, based thereon, of poly-2-methyl-1,3-propylene terephthalate.

REFERENCES:
patent: 4025492 (1977-05-01), Binsack et al.
patent: 4131595 (1978-12-01), Breitenfellner et al.
patent: 4322333 (1982-03-01), Kochanowski et al.

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