Macrocyclic polyester compositions convertible to linear polyest

Details Macrocyclic polyester compositions convertible to linear polyest Macrocyclic polyester compositions convertible to linear polyest

1992-11-30

1994-04-05

Acquah, Samuel A.

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

Synthetic resins

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

525437, 524175, 524178, C08F 2000

Patent

active

053005902

ABSTRACT:
The crystallinity of polyesters prepared from macrocyclic poly(1,4-butylene terephthalate) oligomers is reduced and cracking of molded parts suppressed by the incorporation therein of at least one other linear or macrocyclic poly(alkylene dicarboxylate) oligomer, such as poly(ethylene terephthalate) or poly(1,4-butylene isophthalate). It is preferably employed in macrocyclic form. The resulting compositions can be combined with inert fillers and polymerized.

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patent: 4939060 (1990-07-01), Tomiyama et al.
patent: 5039783 (1991-08-01), Brunelle et al.
patent: 5135833 (1992-08-01), Matsunaga et al.
patent: 5147747 (1992-09-01), Wilson et al.
patent: 5156937 (1992-10-01), Alexandrovich et al.

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