Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1995-10-25
1998-12-01
Acquah, Samuel A.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
528272, 528296, 525437, 524366, 524404, 524451, D02G 300
Patent
active
058435735
ABSTRACT:
A polyester resin composition comprises: an aliphatic polyester having a number-average molecular weight (Mn) in a range of 10,000 to 100,000; and a crystalline nucleating agent, wherein the aliphatic polyester and the crystalline nucleating agent are mixed in such that a half value width of an exothermic peak based on an annealing crystallization of the aliphatic polyester measured by differential scanning calorimetry in an atmosphere of nitrogen at a cooling rate of 3K/minute is not more than 15K. This polyester resin composition has a biodegradability and a high crystallization rate. The polyester resin composition also has excellent mechanical properties and eliminates a precise temperature control during a molding process which saves labor force resulting in desirable moldability and productivity. For the described beneficial properties, the polyester resin composition can be readily processed into a fiber, a molded article, sheet, film and the like. Accordingly, a film made of the polyester resin composition can be effectively used for disposable packing materials, miscellaneous goods for daily use, and the like.
REFERENCES:
patent: 3883901 (1975-05-01), Coquard et al.
patent: 5231148 (1993-07-01), Kleinke et al.
Fukuhara Koji
Itoh Hiroshi
Kobayashi Hiroya
Yamamoto Yoshinobu
Acquah Samuel A.
Nippon Shokubai Co. , Ltd.
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