发明授权
- 专利标题: Process to prepare high molecule weight polyester
- 专利标题(中): 制备高分子量聚酯的方法
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申请号: US822797申请日: 1992-01-21
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公开(公告)号: US5143984A公开(公告)日: 1992-09-01
- 发明人: Waylon L. Jenkins , Gerry Rhodes , Mark Rule
- 申请人: Waylon L. Jenkins , Gerry Rhodes , Mark Rule
- 申请人地址: NY Rochester
- 专利权人: Eastman Kodak Company
- 当前专利权人: Eastman Kodak Company
- 当前专利权人地址: NY Rochester
- 主分类号: C08G63/85
- IPC分类号: C08G63/85 ; C08G63/82 ; C08G63/88 ; C08K3/34 ; C08K5/00 ; C08K5/05 ; C08L67/00 ; C08L67/02
摘要:
A process for preparing a polyester having an inherent viscosity of at least 0.5 comprising(A) preparing an admixture of a molten polyester having an inherent viscosity of less than 0.5, a titanium alkoxide and a 13X zeolite, and(B) subjecting the admixture to a time and temperature sufficient to increase the inherent viscosity of the polyester to at least 0.5.
公开/授权文献
- US5762397A Wire attachment to a seat frame 公开/授权日:1998-06-09
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