SEALANT COMPOSITION HAVING EASY PEELING OFF PROPERTY AND EASY SEAL-OPENABLE CONTAINER

Japanese Patent JP2001131532

A

To obtain a sealant composition capable of obtaining a seal having a suitable strength, easily being opened (peeled off) on opening (peeling off) the seal after its adhesion and also having a good heat-sealing property at a low temperature and heat resistance of the heat sealed part.

This sealant composition having an easily peeled off property consists of the following components (A) and (B), and also satisfying a condition (C). (A) A modified olefin-based polymer which is modified by an unsaturated carboxylic acid anhydride and an unsaturated carboxylic acid ester and has ≥1 mean number of bonds of carboxylic acid anhydride group in a molecule and also the ratio of the number of carboxylic acid ester group to the number of carboxylic acid anhydride of 0.5-20 in the above modified olefin-based polymer. (B) A polymer containing hydroxy group having ≥1 mean number of bonds of the hydroxy groups per 1 molecule. (C) The ratio of the number of hydroxy groups in the component (B) to the number of carboxylic acid anhydride groups in the component (A) being 0.1-5.

SHIMIZU YUICHI
SUGIMOTO SATORU
NAKAYAMA HIROYUKI

JP31483999A

May 15, 2001

November 05, 1999

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MITSUBISHI CHEM CORP

B65D77/20; B65D65/40; C08L23/26; C08L101/06; C09J123/06; C09J123/26; C09J201/02; C09K3/10; (IPC1-7): C09K3/10; B65D65/40; B65D77/20; C08L23/26; C08L101/06; C09J201/02

JPH0657062A	1994-03-01
JPS6173752A	1986-04-15
JPS578234A	1982-01-16
JPH10337819A	1998-12-22
JPH0649315A	1994-02-22
JPH09187892A	1997-07-22
JPH06182944A	1994-07-05
JPH02235743A	1990-09-18
JP2001277416A	2001-10-09

Hasegawa Moji

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