Title:
POLYESTER RESIN COMPOSITION AND BOTTLE PRODUCED FROM THE RESIN COMPOSITION
Document Type and Number:
WIPO Patent Application WO/1999/001508
Kind Code:
A1
Abstract:
A resin composition comprising polyethylene terephthalate and polyethylene naphthalate, a process for producing the composition, a bottle produced from the composition, and a process for producing the bottle. The resin composition is prepared by melt-mixing (A) polyethylene terephthalate with (B) polyethylene naphthalate in such a ratio that the proportion of ethylene naphthalate units is 5 to 15 mol % based on the sum of (A) and (B) with an extrusion kneader while regulating the ratio of the extruder output to the rotational speed of the screw to 0.1 to 1.4 kg/hr.rpm. The composition has a degree of transesterification of 20 % or lower and, despite this, can give bottles with high transparency and high resistance to hot pressing in high-speed production facilities.
Inventors:
Nishihara, Shun-ichi (Mitsubishi Plastics, Inc. Hiratsuka Plant 2480, Shindo Hiratsuka-shi Kanagawa, 254-0017, JP)
Kanesaki, Tateo (Mitsubishi Plastics, Inc. Hiratsuka Plant 2480, Shindo Hiratsuka-shi Kanagawa, 254-0017, JP)
Ogishita, Masatoshi (Mitsubishi Plastics, Inc. Hiratsuka Plant 2480, Shindo Hiratsuka-shi Kanagawa, 254-0017, JP)
Hata, Masanori (Mitsubishi Plastics, Inc. Hiratsuka Plant 2480, Shindo Hiratsuka-shi Kanagawa, 254-0017, JP)
Kanesaki, Tateo (Mitsubishi Plastics, Inc. Hiratsuka Plant 2480, Shindo Hiratsuka-shi Kanagawa, 254-0017, JP)
Ogishita, Masatoshi (Mitsubishi Plastics, Inc. Hiratsuka Plant 2480, Shindo Hiratsuka-shi Kanagawa, 254-0017, JP)
Hata, Masanori (Mitsubishi Plastics, Inc. Hiratsuka Plant 2480, Shindo Hiratsuka-shi Kanagawa, 254-0017, JP)
Application Number:
PCT/JP1998/003028
Publication Date:
January 14, 1999
Filing Date:
July 06, 1998
Export Citation:
Assignee:
MITSUBISHI PLASTICS, INC. (5-2 Marunouchi 2-chome Chiyoda-ku Tokyo, 100-0005, JP)
Nishihara, Shun-ichi (Mitsubishi Plastics, Inc. Hiratsuka Plant 2480, Shindo Hiratsuka-shi Kanagawa, 254-0017, JP)
Kanesaki, Tateo (Mitsubishi Plastics, Inc. Hiratsuka Plant 2480, Shindo Hiratsuka-shi Kanagawa, 254-0017, JP)
Ogishita, Masatoshi (Mitsubishi Plastics, Inc. Hiratsuka Plant 2480, Shindo Hiratsuka-shi Kanagawa, 254-0017, JP)
Hata, Masanori (Mitsubishi Plastics, Inc. Hiratsuka Plant 2480, Shindo Hiratsuka-shi Kanagawa, 254-0017, JP)
Nishihara, Shun-ichi (Mitsubishi Plastics, Inc. Hiratsuka Plant 2480, Shindo Hiratsuka-shi Kanagawa, 254-0017, JP)
Kanesaki, Tateo (Mitsubishi Plastics, Inc. Hiratsuka Plant 2480, Shindo Hiratsuka-shi Kanagawa, 254-0017, JP)
Ogishita, Masatoshi (Mitsubishi Plastics, Inc. Hiratsuka Plant 2480, Shindo Hiratsuka-shi Kanagawa, 254-0017, JP)
Hata, Masanori (Mitsubishi Plastics, Inc. Hiratsuka Plant 2480, Shindo Hiratsuka-shi Kanagawa, 254-0017, JP)
International Classes:
B29C49/00; C08L67/02; B29C49/06; C08G63/183; C08G63/189; (IPC1-7): C08L67/02; C08J3/20; B29B11/08; B29C49/06; B65D1/02
Attorney, Agent or Firm:
Matsui, Mitsuo (3F Nishishinbashi YS Building 19-2, Nishishinbashi 2-chome Minato-ku Tokyo, Nishishinbashi 2-chome Minato-ku Tokyo, 105-0003, JP)
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