|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||528/308.6 ; 528/272 ; 528/298 ; 528/301 ; 528/302 ; 528/307 ; 528/308 ; 528/503 ; 428/035.7 ; 428/036.92|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 25 인용 특허 : 19|
The present invention is a method of preparing a high molecular weight copolyester bottle resin that has excellent melt processing characteristics. The method includes the steps of reacting a diacid or diester component and a diol component to form modified polyethylene terephthalate, wherein diol component is present in excess of stoichiometric proportions. Together, the diacid or diester component and the diol component must include at least 7 percent comonomer. The remainder of the diacid component is terephthalic acid or dimethyl terephthalate and th...
[ That which is claimed is:] [1.]1. A method of preparing a high molecular weight copolyester bottle resin that has excellent melt processing characteristics, comprising:reacting a terephthalate component and a diol component to form a modified polyethylene terephthalate, whereinthe terephthalate component includes at least about 4 mole percent diacid or diester comonomer with the remainder being terephthalic acid or dimethyl terephthalate, andthe diol component is present in excess of stoichiometric proportions and includes at least about 2 mole percent...