聚酯

It is shown that the crystallinity and melting point of copolyesters decreased with increasing content of...

结果表明：共聚酯的结晶度和熔点随着体系中对苯二甲酸或新戊二醇的含量增加而下降，而耐热性能则明显提高。

The present invention relates to a coating composition comprising; A at least one polyester oligomer prepared from reactants comprising a 20 60 wt.% of at least one polyol, b 5 30 wt.% of at least one polycarboxylic acid selected from the group of cyclic polycarboxylic acids, the esters or the anhydrides thereof, wherein the carboxyl groups are separated by 3 carbon atoms or less, and from the group of alpha , beta -saturated acyclic polycarboxylic acids, the esters or the anhydrides thereof, and c 20 60 wt % of at least one monocarboxylic acid, the sum of the wt.% indicated for the reactants,, and always being 100 wt.%, and the oligomer being a low-viscosity oligomer having a weight average molecular weight Mw of less than 5,000, and a hydroxyl number in the range of about 200 to about 400 mg KOH/g oligomer, and B at least one polyisocyanate.

本发明涉及一种包含如下组分的涂料组合物：A至少一种由包含如下成分的反应物制备的聚酯低聚物：a20-60wt％至少一种多元醇，b5-30wt％至少一种选自其中羧基被3个或更少碳原子隔开的环状多元羧酸、其酯或酸酐以及选自α，β-饱和的无环多元羧酸、其酯或酸酐的多元羧酸，以及c20-60wt％至少一种一元羧酸，其中反应物、和的wt％之和总是为100wt％，所述低聚物是重均分子量Mw低于5000且羟基值为约200-约400mg KOH/g低聚物的低粘度低聚物，以及B至少一种多异氰酸酯。

L is the initiator of liquid peroxide cyclohexanone, they are cold polyester resin Curing the initiator.

引发剂 L 是液态过氧化环已酮，它们是聚酯树脂冷固化成型的引发剂。

Resins: gum dammar; PU dispersion; silicone resin, epoxy resin, alkyd, acrylic Resin, polyester resin, urethane resin, polyamide resin, amino hardener; two pack hydroxy acrylic, two pack isocyanate-free acrylic; vinyl chloride co-polymers, polyvinyl butyrals, thixotropic resin.

树脂类：达玛树脂；水性PU分散体；有机硅、环氧、醇酸、丙烯酸、聚酯、聚氨酯、聚酰胺、氨基固化剂；双组份羟基丙烯酸、双组份不含异氰酸脂丙烯酸；聚氯乙烯共聚物、聚乙烯醇缩丁醛、触变性树脂。

The results show that these kinds of polyurethane materials have good degradable properties.

结果表明，这类共聚酯聚氨酯材料具有良好的降解性能，HEMA的引入提高了材料的韧性，但使材料的形态结构变得不均匀，降低了材料的交联密度和降解速率。

For PET fibreswith different super-molecular structure, the temperature dependance oftheir dynamic mechanical properties is obviously different.

不同超分子结构的聚酯纤维，其动态力学性能的温度依赖性显著不同。

The reaction of hydrolytic depolymerization was used for the generation of useful chemicals of ethylene glycol and terephthalic acid.

研究中设计及评估了三种水解废PET的化学程序，这些程序可将废PET转化为对苯二甲酸和乙二醇化学品，可做重新生产PET或其他聚酯原料之用。

Grain inhibiting consisted of coating the propellant outer diametrical surface with polyester/styrene resin, then wrapping a resin soaked paper tightly around, forming two full layers.

粮食抑制构成涂层的推进剂外表面径向与聚酯/苯乙烯树脂，然后包装树脂浸泡文件，紧紧围绕，形成了两个完整层。

The present invention relates to a rubber composition including 100 parts by mass of a rubber component including a natural rubber and/or a diene rubber and 0.5 to 80 parts by mass of a biodegradable aliphatic polyester.

本发明涉及相对于含有天然橡胶及/或二烯烃系橡胶的100质量份橡胶成分，进而在0.5～80质量份的范围内含有生物降解性脂肪族聚酯的橡胶组合物。

The aqueous solution of WSPs shows a weak feature of dilatancy fluid.

水溶性聚酯水溶液表现出微弱的胀塑性流体特征。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。