Certain polyester compositions which comprise cyclohexanedimethanol, moderate cyclobutanediol, cyclohexanedimethanol, and high trans cyclohexanedicarboxylic acid
申请人:Moody Leslie Shane
公开号:US20070232779A1
公开(公告)日:2007-10-04
Described as one aspect of the invention are polyester compositions A polyester composition comprising at least one polyester which comprises:
(A) a dicarboxylic acid component comprising:
i) 70 to 100 mole % of cyclohexanedicarboxylic acid residues or an ester thereof comprising:
(a) 80 to 99 mole % trans-cyclohexanedicarboxylic acid residues or an ester thereof; and
(b) 1 to 20 mole % cis-cyclohexanedicarboxylic acid residues or an ester thereof;
ii) 0 to 30 mole % of aliphatic dicarboxylic acid residues, other than cyclohexanedicarboxylic acid residues, having up to 16 carbon atoms or esters thereof, other than cyclohexanedicarboxylic acid residues; and
iii) 0 to 10 mole % of aromatic dicarboxylic acid residues having up to 20 carbon atoms; and
(B) a glycol component comprising:
i) 5 to 35 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and
ii) 65 to 95 mole % of 1,4-cyclohexanedimethanol residues, 1,3-cyclohexanedimethanol residues, 1,2-cyclohexanedimethanol residues or esters thereof or mixtures thereof,
wherein the total mole % of said dicarboxylic acid component is equal to 100 mole %;
the total mole % of said glycol component is equal to 100 mole %;
wherein the inherent viscosity of said polyester is from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.5 g/100 ml at 25° C.; and wherein said polyester has a Tg of from 66 to 120° C. The polyesters may be manufactured into articles.
本发明的一方面是聚酯组合物,其中包括至少一种聚酯,该聚酯包括:(A) 二羧酸组分,包括:i) 70至100摩尔%的环己二甲酸残基或其酯,包括:(a) 80至99摩尔%的反式环己二甲酸残基或其酯;和(b) 1至20摩尔%的顺式环己二甲酸残基或其酯;ii) 0至30摩尔%的具有高达16个碳原子的脂肪族二羧酸残基(环己二甲酸残基除外)或其酯;以及iii) 0至10摩尔%的具有高达20个碳原子的芳香族二羧酸残基;和(B) 二元醇组分,包括:i) 5至35摩尔%的2,2,4,4-四甲基-1,3-环丁二醇残基;和ii) 65至95摩尔%的1,4-环己二甲醇残基,1,3-环己二甲醇残基,1,2-环己二甲醇残基或其酯或其混合物,其中所述二羧酸组分的总摩尔%等于100摩尔%;所述二元醇组分的总摩尔%等于100摩尔%;其中所述聚酯的固有粘度在60/40(重量/重量)苯酚/四氯乙烷中以0.5 g / 100 ml浓度在25°C下测定为0.35至1.2 dL / g;且所述聚酯的Tg在66至120°C之间。这些聚酯可以制成物品。