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    • 3. 发明申请
    • ALIPHATIC COPOLYMER, PRODUCTION PROCESS, ALIPHATIC POLYESTER RESIN COMPOSITION, VARIOUS USES, COATING COMPOSITION, AND AGRICULTURAL OR HORTICULTURAL PARTICULATE COMPOSITION COMPRISING DEGRADABLE COATING FILM
    • 二次共聚物,生产方法,聚氨酯树脂组合物,各种用途,涂料组合物和包含可降解涂料膜的农业或农业颗粒组合物
    • WO00029460A1
    • 2000-05-25
    • PCT/JP1999/006367
    • 1999-11-15
    • C08G18/42C08G18/63C08G18/72C08G63/00C08G63/08C08G63/78C08G63/91C09D167/04C09D175/04C05G3/00C08F299/04C08J5/18C09D5/24C09D101/10C09D151/02
    • C08G63/78C08G18/4277C08G18/4286C08G18/631C08G18/728C08G63/00C08G63/08C08G63/912C08G2230/00C09D167/04C09D175/04Y10T428/164C08L2666/02
    • An aliphatic polyester which is obtained by reacting a lactone and a lactide with a high-boiling monohydric alcohol or a metal alkoxide through ring-opening polymerization and in which the contents of terminal OH and COOH have been reduced to 50 % or lower and 30 % or lower, respectively, or reduced to lower values by bonding ends of the yielded polymer to a diisocyanate. It has regulated thermal, hydrolytic, and biological degradability. From the polyester composition is obtained an agricultural or horticultural, particulate composition which is capable of being regulated with respect to the duration of fertilization and leaves no decomposition products remaining in the soil. From the resin consisting mainly of a fatty acid/cellulose ester derivative are obtained: a base film for marking films which is free from problems such as the volatilization or migration of plasticizers; a thermal transfer image receptor which is capable of forming recorded images and is excellent in releasability, developed-color density, and brightness; a conductive coating composition excellent in storage stability, adhesion, and conductivity; and a one-pack type coating material, moisture-curable graft copolymer, and coating composition which each is neither toxic nor stimulant and has excellent dryability. The copolymer in which the average length of the lactide and lactone unit chains has been regulated is excellent in heat resistance and impact resistance.
    • 通过开环聚合使内酯和丙交酯与高沸点一元醇或金属醇盐反应而得到的脂肪族聚酯,末端OH和COOH的含量已经降低到50%以下,30% 或更低,或者通过将得到的聚合物的末端键合到二异氰酸酯来降低至较低的值。 它调节了热,水解和生物降解性。 从聚酯组合物获得能够在施肥持续时间内调节的农业或园艺成分的颗粒组合物,并且不会在土壤中残留分解产物。 得到由主要由脂肪酸/纤维素酯衍生物组成的树脂:不含增塑剂挥发或迁移等问题的膜标记用基膜; 能够形成记录图像并且具有优异的脱模性,显色浓度和亮度的热转印图像接收器; 具有优异的保存稳定性,粘合性和导电性的导电性涂料组合物; 和单组分型涂料,可湿气固化的接枝共聚物和涂料组合物,它们既不毒也不刺激,并且具有优异的可干性。 已经调节了丙交酯和内酯单元链的平均长度的共聚物具有优异的耐热性和耐冲击性。