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CBDO |3010-96-6| can be used to prepare high-quality baby bottles

2017-11-20 来源:亚科官网
20 November 2017
  All along, people have a high requirement for baby bottles, we hope it has high transparency, sterilization resistance, chemical resistance and high impact strength. Previously used materials such as polypropylene, bisphenol A polycarbonate and polysulfone often have some drawbacks. In recent years, polymers comprising 2,2,4,4-tetramethyl-1,3-cyclobutanediol (CBDO) have shown high inherent viscosity, high melt viscosity and high glass transition temperature (Tg), has been widely used in this field. This article will introduce a technology that uses CBDO as a feedstock to prepare a bottle [1].
  In this technology, researchers used terephthalic acid or its esters, CBDO and 1,4-cyclohexane dimethanol as raw materials, the inventor invented a polyester-containing feeding bottle, which contains:
Dicarboxylic acid component (total mol% of 100mol%):
i) 70~100mol% of terephthalic acid residues;
ii) 0~30mol% of aromatic dicarboxylic acid residues containing up to 20 carbon atoms;
iii) 0~10mol% of aliphatic dicarboxylic acid residues containing up to 16 carbon atoms;
Diol component (total mol% of 100 mol%):
1) 15~50 mol% 2,2,4,4-tetramethyl-1,3-cyclobutanediol (CBDO) residue;
ii) 50~85 mol% of 1,4-cyclohexanedimethanol residues.
Other components:
  • Containing at least one of the following polymers: poly(ether-imide), polyphenyl ether, polyphenyl ether-polystyrene blend, polystyrene resin, polyphenylene sulfide, polyphenylene sulfide/Sulfone, polysulfone, polysulfone ether and poly(ether-ketone);
  • Containing at least one branching agent residue, including but not limited to: polyfunctional acids or polyfunctional alcohols;
  • Containing a thermal stabilizer, including but not limited to, phosphoric acid, phosphorous acid, phosphonic acid, phosphinic acid, phosphonous acid, and various esters and salts thereof;
  • Does not include polycarbonate.
  The inherent viscosity and Tg of the resulting polyester is 0.60~0.75dL/g and 100~140°C at a concentration of 0.5g/100mL phenol/tetrachloroethane in 60/40 (wt/wt) at 25°C.
  The bottles made of this polyester have toughness and high glass transition temperature, high impact strength, hydrolytic stability, chemical resistance, long crystallization half-life, low ductile-brittle transition temperature, good color and transparency. Which not only can extend the service life, but also meet the various requirements of consumers in the process of using the product, enhance product receptivity.
References:
[1] Eastman Chemical Company. Baby bottle containing polyester composition comprising cyclobutanediol-. Patent CN101193935B, 2013, 01.02.
Edited by Suzhou Yacoo Science Co., Ltd.