发明名称 |
Modified polyethylene naphthalate. |
摘要 |
Polyethylene naphthalate is a polyester resin that is highly useful in numerous applications. For instance, polyethylene naphthalate can be molded into a wide variety of products which have outstanding properties. However, polyethylene naphthalate does not crystallize rapidly at temperatures which are normally used in molding operations. This invention discloses a modified polyethylene naphthalate which crystallizes rapidly at much lower temperatures than does polyethylene naphthalate homopolymer. The modified polyethylene naphthalates of this invention contain a small amount of polyether glycol. This invention more specifically relates to a polyester comprised of repeat units which are derived from (a) a naphthalate dicarboxylic acid and (b) a diol component which is comprised of (1) at least one glycol containing from 2 to 12 carbon atoms and (2) from about 1 to about 12 weight percent of at least one polyether glycol based upon the total weight of the polymer.
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申请公布号 |
EP0335818(A2) |
申请公布日期 |
1989.10.04 |
申请号 |
EP19890630062 |
申请日期 |
1989.03.24 |
申请人 |
THE GOODYEAR TIRE & RUBBER COMPANY |
发明人 |
TUNG, WILLIAM C. T.;FLOYD, MERRY ELIZABETH |
分类号 |
B65D1/00;C08G63/66;C08G63/672 |
主分类号 |
B65D1/00 |
代理机构 |
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