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    • 8. 发明授权
    • Stabilized copolyesterether compositions suitable for outdoor
applications
    • 适用于室外应用的稳定的共聚酯组合物
    • US4524165A
    • 1985-06-18
    • US544035
    • 1983-10-24
    • Harry R. MusserThomas H. StricklandJoseph S. Zannucci
    • Harry R. MusserThomas H. StricklandJoseph S. Zannucci
    • C08K5/00C08K5/3435C08K5/3462C08K5/34C08K5/07C08K5/10
    • C08K5/3435C08K5/00C08K5/3462
    • Disclosed are stabilized polyester compositions having significantly improved weatherability. These polyesters consist of copolyesterethers derived from a dicarboxylic acid component comprising about 80-100 mole % 1,4-cyclohexanedicarboxylic acid having a trans isomer content of at least 70% and about 0-20 mole % of a second dicarboxylic acid and a glycol component comprising about 70-95 mole % 1,4-cyclohexanedimethanol and about 5-30 mole % of a polyalkylene ether glycol having a molecular weight of about 600 to about 3000. The copolyesterether compositions further comprise a stabilizing effective amount of the combination of (1) at least one hindered phenolic antioxidant, (2) at least one ultraviolet light stabilizing compound compatible with said copolyesterether and (3) at least one hindered amine light stabilizing compound having the formulae ##STR1## the groups shown as R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently selected from various substituents.
    • 公开了具有显着改善的耐候性的稳定的聚酯组合物。 这些聚酯由衍生自二羧酸组分的共聚酯组成,所述二羧酸组分包含约80-100摩尔%的反式异构体含量为至少70%和约0-20摩尔%的第二二羧酸和二醇组分的1,4-环己烷二羧酸 其包含约70-95摩尔%的1,4-环己烷二甲醇和约5-30摩尔%的分子量为约600至约3000的聚亚烷基醚二醇。共聚内酯组合物还包含稳定有效量的(1 )至少一种受阻酚抗氧化剂,(2)至少一种与所述共聚酯相容的紫外线稳定化合物和(3)至少一种具有下式的受阻胺光稳定化合物: ,R 2,R 3和R 4各自独立地选自各种取代基。
    • 9. 发明授权
    • Copolyesterethers
    • 共聚醚醚共聚酯
    • US4349469A
    • 1982-09-14
    • US235385
    • 1981-02-17
    • Burns DavisTheodore F. GrayHarry R. Musser
    • Burns DavisTheodore F. GrayHarry R. Musser
    • C08G63/66C08G63/18
    • C08G63/66
    • Disclosed are copolyesterethers having an inherent viscosity of from about 0.8 to about 1.5 comprisingA. a dicarboxylic acid component consisting essentially of 1,4-cyclohexanedicarboxylic acid having a trans isomer content of at least 70%, andB. a glycol component consisting essentially of(1) 1,4-cyclohexanedimethanol, and(2) from about 15 to about 50 weight percent, based on the weight of the polyesterether, of polytetramethyleneether glycol having a molecular weight of about 500 to about 1100,C. from about 0.1 to about 1.5 mole %, based on the mole % of the acid or glycol component, of a branching agent having at least three COOH or OH functional groups and from 3 to 60 carbon atoms,said copolyesterethers being characterized by having a die swell of between about -90% and about +100% and a minimum crystallization time of less than 2.5 minutes.
    • 公开的具有约0.8至约1.5的特性粘度的共聚醚醚醚包括A.基本上由反式异构体含量为至少70%的1,4-环己烷二羧酸组成的二羧酸组分,以及B.一种二醇组分,主要由 (1)1,4-环己烷二甲醇,和(2)约15至约50重量%,基于聚酯醚的重量,分子量为约500至约1100的聚四亚甲基醚二醇,约0.1至 约1.5摩尔%,基于酸或二醇组分的摩尔%,具有至少三个COOH或OH官能团和3-60个碳原子的支化剂,所述共聚醚醚的特征在于具有介于约 -90%和约+ 100%,最小结晶时间小于2.5分钟。