POLYESTER RESIN, RESIN COMPOSITION FOR CAN PAINT, PAINTED METAL PLATE FOR CAN, AND CAN

Title:

POLYESTER RESIN, RESIN COMPOSITION FOR CAN PAINT, PAINTED METAL PLATE FOR CAN, AND CAN

Document Type and Number:

WIPO Patent Application WO/2013/145992

Kind Code:

A1

Abstract:

Provided are a polyester resin and a paint resin composition containing the same, which have very high curability and are capable of forming a paint film with excellent workability, retort resistance, content resistance and dent resistance. This polyester resin comprises a polycarboxylic acid component and a polyol component, and has the following conditions (i) to (iii): (i) the sum of the copolymerization ratio of a terephthalic acid component and a 2,6-naphthalenedicarboxylic acid component of the polycarboxylic acid component that constitutes the polyester resin is 80 mol% or more; (ii) the copolymerization ratio of the 2,6-naphthalenedicarboxylic acid component of the polycarboxylic acid component that constitutes the polyester resin is 2 to 80 mol%; and (iii) the sum of the copolymerization ratio of an ethylene glycol component and a 1,2-propylene glycol component of the polyol component that constitutes the polyester resin is 50 mol% or more, the 1,2-propylene glycol component being included in a greater amount than the ethylene glycol component.

Inventors:

KAWAKUSU TETSUO (JP)

Application Number:

PCT/JP2013/054685

Publication Date:

October 03, 2013

Filing Date:

February 25, 2013

Export Citation:

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Assignee:

TOYO BOSEKI (JP)

International Classes:

C08G63/189; B65D25/34; C09D167/02; C09D175/06

Foreign References:

JP2012001688A	2012-01-05
JPH0436364A	1992-02-06
JP2004217682A	2004-08-05
JP2001002905A	2001-01-09
JP2001106968A	2001-04-17
JPH07113059A	1995-05-02
JPH1181154A	1999-03-26
JPH11302361A	1999-11-02
JP2004359759A	2004-12-24
JP2008081617A	2008-04-10
JP2005042110A	2005-02-17

Other References: